欢迎访问ic37.com |
会员登录 免费注册
发布采购
所在地: 型号: 精确
  • 批量询价
  •  
  • 供应商
  • 型号
  • 数量
  • 厂商
  • 封装
  • 批号
  • 交易说明
  • 询价
更多
  • TDA7491HV图
  • 深圳市科时进电子有限公司

     该会员已使用本站11年以上
  • TDA7491HV 现货库存
  • 数量1045 
  • 厂家ST/意法 
  • 封装SSOP36 
  • 批号21+ 
  • 全新进口现货▊一手货源▊热卖支持实单▊bom配单专家
  • QQ:2355850215QQ:2355850215 复制
  • 0755-83997989 QQ:2355850215
  • TDA7491HV图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • TDA7491HV 现货库存
  • 数量386 
  • 厂家ST 
  • 封装SSOP 
  • 批号 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:2881512844QQ:2881512844 复制
  • 075584507705 QQ:2881512844
  • TDA7491HV图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • TDA7491HV 现货库存
  • 数量26800 
  • 厂家ST 
  • 封装22+ 
  • 批号SSOP 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:1435424310QQ:1435424310 复制
  • 0755-84507451 QQ:1435424310
  • TDA7491HV13TR图
  • 深科创(香港)科技有限公司

     该会员已使用本站16年以上
  • TDA7491HV13TR
  • 数量5590 
  • 厂家STMicroelectronics 
  • 封装原厂原装 
  • 批号19+ 
  • 只做原装,只有原装
  • QQ:3350142453QQ:3350142453 复制
    QQ:545433074QQ:545433074 复制
  • 83247290 QQ:3350142453QQ:545433074
  • TDA7491HV图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站15年以上
  • TDA7491HV
  • 数量85000 
  • 厂家ST/意法 
  • 封装HSSOP36 
  • 批号24+ 
  • 假一罚十,原装进口正品现货供应,价格优势。
  • QQ:198857245QQ:198857245 复制
  • 0755-82865294 QQ:198857245
  • TDA7491HV图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • TDA7491HV
  • 数量12500 
  • 厂家ST 
  • 封装TSSOP 
  • 批号2023+ 
  • 绝对原装全新正品现货/优势渠道商、原盘原包原盒
  • QQ:364510898QQ:364510898 复制
    QQ:515102657QQ:515102657 复制
  • 0755-83777708“进口原装正品专供” QQ:364510898QQ:515102657
  • TDA7491HV图
  • 北京齐天芯科技有限公司

     该会员已使用本站15年以上
  • TDA7491HV
  • 数量14950 
  • 厂家ST 
  • 封装HSSOP 36 
  • 批号2024+ 
  • 中航军工集团-只做原装
  • QQ:2880824479QQ:2880824479 复制
    QQ:1344056792QQ:1344056792 复制
  • 010-62104931 QQ:2880824479QQ:1344056792
  • TDA7491HV图
  • 深圳市拓亿芯电子有限公司

     该会员已使用本站12年以上
  • TDA7491HV
  • 数量30000 
  • 厂家ST 
  • 封装SOP36 
  • 批号23+ 
  • 代理全新原装现货,价格优势
  • QQ:1774550803QQ:1774550803 复制
    QQ:2924695115QQ:2924695115 复制
  • 0755-82777855 QQ:1774550803QQ:2924695115
  • TDA7491HV图
  • 集好芯城

     该会员已使用本站13年以上
  • TDA7491HV
  • 数量19200 
  • 厂家ST 
  • 封装SSOP 
  • 批号最新批次 
  • 原装原厂 现货现卖
  • QQ:3008092965QQ:3008092965 复制
    QQ:3008092965QQ:3008092965 复制
  • 0755-83239307 QQ:3008092965QQ:3008092965
  • TDA7491HV13TR图
  • 北京齐天芯科技有限公司

     该会员已使用本站15年以上
  • TDA7491HV13TR
  • 数量10000 
  • 厂家ST 
  • 封装SSOP36 
  • 批号2024+ 
  • 原装正品,假一罚十
  • QQ:2880824479QQ:2880824479 复制
    QQ:1344056792QQ:1344056792 复制
  • 010-62104931 QQ:2880824479QQ:1344056792
  • TDA7491HVU13TR图
  • 深圳市芯鹏泰科技有限公司

     该会员已使用本站8年以上
  • TDA7491HVU13TR
  • 数量7536 
  • 厂家STMicroelectronics 
  • 封装PowerSSO-36 EPU 
  • 批号23+ 
  • 放大器音频IC原装现货
  • QQ:3004306594QQ:3004306594 复制
  • 0755-82777852 QQ:3004306594
  • TDA7491HV13TR图
  • 深圳市高捷芯城科技有限公司

     该会员已使用本站11年以上
  • TDA7491HV13TR
  • 数量8498 
  • 厂家ST(意法半导体) 
  • 封装Power-SSO-36 
  • 批号23+ 
  • 支持大陆交货,美金交易。原装现货库存。
  • QQ:3007977934QQ:3007977934 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-83062789 QQ:3007977934QQ:3007947087
  • TDA7491HV图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • TDA7491HV
  • 数量5000 
  • 厂家STMicroelectronics 
  • 封装贴/插片 
  • 批号2024+ 
  • 百分百原装正品,现货库存
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62104931 QQ:857273081QQ:1594462451
  • TDA7491HV图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • TDA7491HV
  • 数量3636 
  • 厂家ST/意法 
  • 封装NA/ 
  • 批号23+ 
  • 原装现货,当天可交货,原型号开票
  • QQ:3007977934QQ:3007977934 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-82546830 QQ:3007977934QQ:3007947087
  • TDA7491HV图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • TDA7491HV
  • 数量65000 
  • 厂家ST 
  • 封装HSSOP-36 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
  • QQ:2881495753QQ:2881495753 复制
  • 0755-23605827 QQ:2881495753
  • TDA7491HV图
  • 深圳市科庆电子有限公司

     该会员已使用本站16年以上
  • TDA7491HV
  • 数量2257 
  • 厂家ST 
  • 封装SSOP36 
  • 批号23+ 
  • 只做进口原装/到货/可含13%税
  • QQ:2850188252QQ:2850188252 复制
    QQ:2850188256QQ:2850188256 复制
  • 0755 QQ:2850188252QQ:2850188256
  • TDA7491HV图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • TDA7491HV
  • 数量6980 
  • 厂家ST 
  • 封装22+ 
  • 批号HSSOP-36 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:2881512844QQ:2881512844 复制
  • 075584507705 QQ:2881512844
  • TDA7491HV图
  • 深圳市硅诺电子科技有限公司

     该会员已使用本站8年以上
  • TDA7491HV
  • 数量10000 
  • 厂家ST 
  • 封装HSSOP36 
  • 批号17+ 
  • 原厂指定分销商,有意请来电或QQ洽谈
  • QQ:1091796029QQ:1091796029 复制
    QQ:916896414QQ:916896414 复制
  • 0755-82772151 QQ:1091796029QQ:916896414
  • TDA7491HV图
  • 深圳市羿芯诚电子有限公司

     该会员已使用本站7年以上
  • TDA7491HV
  • 数量8800 
  • 厂家ST 
  • 封装原厂封装 
  • 批号新年份 
  • 羿芯诚只做原装,原厂渠道,价格优势可谈!
  • QQ:2853992132QQ:2853992132 复制
  • 0755-82570683 QQ:2853992132
  • TDA7491HV图
  • 深圳市卓越微芯电子有限公司

     该会员已使用本站12年以上
  • TDA7491HV
  • 数量5500 
  • 厂家ST 
  • 封装HSSOP 
  • 批号20+ 
  • 百分百原装正品 真实公司现货库存 本公司只做原装 可开13%增值税发票,支持样品,欢迎来电咨询!
  • QQ:1437347957QQ:1437347957 复制
    QQ:1205045963QQ:1205045963 复制
  • 0755-82343089 QQ:1437347957QQ:1205045963
  • TDA7491HV13TR图
  • 深圳市惊羽科技有限公司

     该会员已使用本站11年以上
  • TDA7491HV13TR
  • 数量6328 
  • 厂家ST-意法半导体 
  • 封装TSSOP-36 
  • 批号▉▉:2年内 
  • ▉▉¥26.4元一有问必回一有长期订货一备货HK仓库
  • QQ:43871025QQ:43871025 复制
  • 131-4700-5145---Q-微-恭-候---有-问-秒-回 QQ:43871025
  • TDA7491HV图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站12年以上
  • TDA7491HV
  • 数量4500 
  • 厂家ST 
  • 封装SSOP36 
  • 批号25+ 
  • 全新原装公司现货销售
  • QQ:1245773710QQ:1245773710 复制
    QQ:867789136QQ:867789136 复制
  • 0755-82772189 QQ:1245773710QQ:867789136
  • TDA7491HV图
  • 深圳市炎凯科技有限公司

     该会员已使用本站7年以上
  • TDA7491HV
  • 数量578 
  • 厂家ST 
  • 封装SOP36 
  • 批号24+ 
  • 原装现货
  • QQ:354696650QQ:354696650 复制
    QQ:2850471056QQ:2850471056 复制
  • 0755-89587732 QQ:354696650QQ:2850471056
  • TDA7491HV13TR图
  • 上海磐岳电子有限公司

     该会员已使用本站11年以上
  • TDA7491HV13TR
  • 数量5800 
  • 厂家ST 
  • 封装SSOP36 
  • 批号2024+ 
  • 全新原装现货,杜绝假货。
  • QQ:3003653665QQ:3003653665 复制
    QQ:1325513291QQ:1325513291 复制
  • 021-60341766 QQ:3003653665QQ:1325513291
  • TDA7491HV图
  • 深圳市勤思达科技有限公司

     该会员已使用本站14年以上
  • TDA7491HV
  • 数量55700 
  • 厂家原装ST 
  • 封装SSOP36 
  • 批号 
  • 全选原装正品 长期现货库存供应
  • QQ:2881239443QQ:2881239443 复制
  • 0755-83268779 QQ:2881239443
  • TDA7491HV图
  • HECC GROUP CO.,LIMITED

     该会员已使用本站17年以上
  • TDA7491HV
  • 数量917 
  • 厂家ST 
  • 封装BGA 
  • 批号24+ 
  • 假一罚万,全新原装库存现货,可长期订货
  • QQ:800888908QQ:800888908 复制
  • 755-83950019 QQ:800888908
  • TDA7491HV图
  • 深圳市华来深电子有限公司

     该会员已使用本站13年以上
  • TDA7491HV
  • 数量8560 
  • 厂家ST 
  • 封装SSOP36 
  • 批号17+ 
  • 受权代理!全新原装现货特价热卖!
  • QQ:1258645397QQ:1258645397 复制
    QQ:876098337QQ:876098337 复制
  • 0755-83238902 QQ:1258645397QQ:876098337
  • TDA7491HV图
  • 深圳市欧瑞芯科技有限公司

     该会员已使用本站11年以上
  • TDA7491HV
  • 数量5800 
  • 厂家ST(意法) 
  • 封装36-PowerBFSOP(0.295,7.50mm 宽) 
  • 批号23+/24+ 
  • 绝对原装正品,可开13%专票,欢迎采购!!!
  • QQ:3354557638QQ:3354557638 复制
    QQ:3354557638QQ:3354557638 复制
  • 18565729389 QQ:3354557638QQ:3354557638
  • TDA7491HV图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站14年以上
  • TDA7491HV
  • 数量18530 
  • 厂家ST 
  • 封装SSOP36 
  • 批号23+ 
  • 全新原装正品现货热卖
  • QQ:2885348339QQ:2885348339 复制
    QQ:2885348317QQ:2885348317 复制
  • 0755-82519391 QQ:2885348339QQ:2885348317
  • TDA7491HV图
  • 深圳市中杰盛科技有限公司

     该会员已使用本站14年以上
  • TDA7491HV
  • 数量12000 
  • 厂家ST 
  • 封装原厂原装 
  • 批号24+ 
  • 【原装优势★★★绝对有货】
  • QQ:409801605QQ:409801605 复制
  • 0755-22968359 QQ:409801605
  • TDA7491HV13TR图
  • 深圳市珩瑞科技有限公司

     该会员已使用本站2年以上
  • TDA7491HV13TR
  • 数量1000 
  • 厂家ST(全新原装进口) 
  • 封装SSOP36 
  • 批号21+ 
  • 只做原装正品,支持实单
  • QQ:2938238007QQ:2938238007 复制
    QQ:1840507767QQ:1840507767 复制
  • -0755-82578309 QQ:2938238007QQ:1840507767
  • TDA7491HV图
  • 深圳市宏世佳电子科技有限公司

     该会员已使用本站13年以上
  • TDA7491HV
  • 数量3715 
  • 厂家ST 
  • 封装PowerSSO-36 EPD 
  • 批号2023+ 
  • 全新原厂原装产品、公司现货销售
  • QQ:2881894393QQ:2881894393 复制
    QQ:2881894392QQ:2881894392 复制
  • 0755- QQ:2881894393QQ:2881894392
  • TDA7491HV图
  • 深圳市宏世佳电子科技有限公司

     该会员已使用本站13年以上
  • TDA7491HV
  • 数量3715 
  • 厂家ST 
  • 封装PowerSSO-36 EPD 
  • 批号2023+ 
  • 全新原厂原装产品、公司现货销售
  • QQ:2881894393QQ:2881894393 复制
    QQ:2881894392QQ:2881894392 复制
  • 0755- QQ:2881894393QQ:2881894392
  • TDA7491HVU13TR图
  • 深圳市恒意法科技有限公司

     该会员已使用本站17年以上
  • TDA7491HVU13TR
  • 数量6697 
  • 厂家STMicroelectronics 
  • 封装-40°C ~ 85°C(TA) 
  • 批号21+ 
  • 正规渠道/品质保证/原装正品现货
  • QQ:2881514372QQ:2881514372 复制
  • 0755-83247729 QQ:2881514372
  • TDA7491HV图
  • 深圳市捷兴胜微电子科技有限公司

     该会员已使用本站13年以上
  • TDA7491HV
  • 数量
  • 厂家ST 
  • 封装专业全新原装汽车机顶盒IC,光电耦合,电源管理等集成电路 
  • 批号SSOP36 
  • QQ:838417624QQ:838417624 复制
    QQ:929605236QQ:929605236 复制
  • 0755-23997656(现货库存配套一站采购及BOM优化) QQ:838417624QQ:929605236
  • TDA7491HV图
  • 深圳市芯柏然科技有限公司

     该会员已使用本站7年以上
  • TDA7491HV
  • 数量26800 
  • 厂家ST 
  • 封装SSOP 
  • 批号22+ 
  • 授权代理直销,原厂原装现货,假一罚十,特价销售
  • QQ:287673858QQ:287673858 复制
  • 0755-82533534 QQ:287673858
  • TDA7491HV图
  • 深圳市凯睿晟科技有限公司

     该会员已使用本站10年以上
  • TDA7491HV
  • 数量2000 
  • 厂家ST/意法 
  • 封装HSSOP36 
  • 批号24+ 
  • 百域芯优势 实单必成 可开13点增值税发票
  • QQ:2885648621QQ:2885648621 复制
  • 0755-23616725 QQ:2885648621
  • TDA7491HV图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • TDA7491HV
  • 数量23480 
  • 厂家ST 
  • 封装HSSOP-36 
  • 批号全新环保批次 
  • 公司只售原装 支持实单
  • QQ:2881495751QQ:2881495751 复制
  • 0755-88917743 QQ:2881495751
  • TDA7491HV13TR图
  • 深圳市鹏睿康科技有限公司

     该会员已使用本站16年以上
  • TDA7491HV13TR
  • 数量1200 
  • 厂家ST 
  • 封装只做原装 
  • 批号23+ 
  • 原装现货假一赔万,原包原标,支持实单
  • QQ:2885392746QQ:2885392746 复制
    QQ:2885392744QQ:2885392744 复制
  • 0755-83192793 QQ:2885392746QQ:2885392744

产品型号TDA7491HV的概述

芯片TDA7491HV的概述 TDA7491HV是一款高效的立体声功率放大器,广泛应用于便携式音频设备、家庭音响和汽车音响系统。该芯片由意法半导体(STMicroelectronics)生产,其设计旨在提供优质的音频输出,同时具备较低的功耗和高的热稳定性。TDA7491HV采用了D类放大技术,与传统的A类和B类放大器相比,D类放大器具有显著的能效优势,能够在较小的体积和重量下实现强劲的功率输出。 在音频放大器行业中,TDA7491HV因其优良的音质和灵活的应用性,成为了多种音频解决方案的首选。尤其是在需要长时间高负荷运行的应用场合,这款芯片凭借其出色的热管理性能和高效的散热设计,表现得尤为突出。 芯片TDA7491HV的详细参数 TDA7491HV具有以下主要技术参数: - 数量通道:2通道(立体声) - 工作电压范围:10V至30V - 输出功率:在4Ω负载条件下,最大输出功率可达到...

产品型号TDA7491HV的Datasheet PDF文件预览

TDA7491HV  
20 W + 20 W dual BTL class-D audio amplifier  
Features  
! 20 W + 20 W continuous output power:  
R = 8 , THD = 10% at V = 18 V  
L
CC  
! Wide range single supply operation (5 V - 19 V)  
! High efficiency (η = 90%)  
! Four selectable, fixed gain settings of 20 dB,  
26 dB, 30 dB and 32 dB  
PowerSSO-36 with  
exposed pad (or slug) down  
! Differential inputs minimize common-mode  
noise  
! Filterless operation  
! No ‘pop’ at turn-on/off  
! Standby and mute features  
! Short circuit protection  
! Thermal overload protection  
! Externally synchronizable  
Description  
The TDA7491HV is a dual BTL class-D audio  
amplifier with single power supply designed for  
LCD TVs and monitors.  
Thanks to the high efficiency and slug-down  
package no heatsink is required.  
Furthermore, the filterless operation allows a  
reduction in the external component count.  
The TDA7491HV is pin to pin compatible with the  
TDA7491P and TDA7491LP.  
Table 1.  
Device summary  
Operating Temp. range  
Order code  
Package  
Packing  
TDA7491HV  
0° to 70° C  
0° to 70° C  
PowerSSO-36 (slug down) Tube  
TDA7491HV13TR  
PowerSSO-36 (slug down) Tape and reel  
December 2007  
Rev 1  
1/26  
www.st.com  
26  
Contents  
TDA7491HV  
Contents  
1
2
Device block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
2.1  
2.2  
Pin-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
3
4
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
3.1  
3.2  
3.3  
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Characterization curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
4.1  
4.2  
4.3  
For 8 loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
For 6 loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
For 4 loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
5
6
7
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
7.1  
7.2  
7.3  
7.4  
Mode selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
Gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
Input resistance and capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
Internal and external clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
7.4.1  
7.4.2  
Master mode (internal clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Slave mode (external clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
7.5  
7.6  
7.7  
7.8  
7.9  
Filterless modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
Output low-pass filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22  
Protection function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Diagnostic output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Heatsink requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
2/26  
TDA7491HV  
Contents  
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
3/26  
Device block diagram  
TDA7491HV  
1
Device block diagram  
Figure 1 shows the block diagram of one of the two identical channels of the TDA7491HV.  
Figure 1.  
Internal block diagram (one channel only)  
4/26  
TDA7491HV  
Pin description  
2
Pin description  
2.1  
Pin-out  
Figure 2.  
Pin connection (top view)  
5/26  
Pin description  
TDA7491HV  
2.2  
Pin list  
Table 2.  
Number  
Pin description list  
Name  
Type  
Description  
1
SUB_GND  
OUTPUTB  
PGNDB  
PVCCB  
OUTNB  
OUTNA  
PVCCA  
PGNDA  
OUTPA  
POWER  
OUT  
Connect to the frame  
2,3  
Positive PWM for right channel  
Power stage round for right channel  
Power supply for right channel  
Negative PWM output for right channel  
Negative PWM output for right channel  
Power supply for left channel  
4,5  
POWER  
POWER  
OUT  
6,7  
8,9  
10,11  
12,13  
14,15  
16,17  
18  
OUT  
POWER  
POWER  
OUT  
Power stage round for left channel  
Positive PWM output for left channel  
Power stage round  
PGND  
POWER  
3.3 V (nominal) regulator output referred to ground for power  
stage  
19  
VDDPW  
OUT  
20  
21  
22  
23  
24  
25  
STBY  
INPUT  
INPUT  
INPUT  
INPUT  
OUT  
Standby mode control  
MUTE  
INPA  
Mute mode control  
Positive differential input of left channel  
Negative differential input of left channel  
Master oscillator frequency-setting pin  
Clock in/out for external oscillator  
INNA  
ROSC  
SYNCLCK  
IN/OUT  
3.3 V (nominal) regulator output referred to ground for signal  
blocks  
26  
VDDS  
OUT  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
SGND  
DIAG  
SVR  
POWER  
OUT  
Signal round  
Open-drain diagnostic output  
Supply voltage rejection  
OUT  
GAIN0  
GAIN1  
INPB  
INNB  
VREF  
SVCC  
VSS  
INPUT  
INPUT  
INPUT  
INPUT  
OUT  
Gain setting input 1  
Gain setting input 2  
Positive differential input of right channel  
Negative differential input of right channel  
Half VDDS (nominal) referred to ground  
Signal power supply  
POWER  
OUT  
3.3 V (nominal) regulator output referred to power supply  
6/26  
TDA7491HV  
Electrical specifications  
3
Electrical specifications  
3.1  
Absolute maximum ratings  
Table 3.  
Symbol  
Absolute maximum ratings  
Parameter  
Value  
Unit  
VCC  
Top  
Tj  
DC supply voltage for pins PVCCA, PVCCB, SVCC  
Operating temperature  
23  
V
0 to 70  
°C  
°C  
°C  
Junction temperature  
-40 to 150  
-40 to 150  
Tstg  
Storage temperature  
3.2  
3.3  
Thermal data  
Table 4.  
Symbol  
Thermal data  
Parameter  
Min  
Typ Max Unit  
Rth j-case Thermal resistance, junction to case  
2
3
°C/W  
Thermal resistance, junction to ambient  
Rth j-amb  
24  
(mounted on recommended PCB)(1)  
1. FR4 with vias to copper area of 9 cm2 (see also Section 7.9: Heatsink requirements on page 24).  
Electrical specifications  
Unless otherwise stated, the results in Table 5 below are given for the conditions:  
VCC = 18 V, R (load) = 8 , R  
= 39 k, C1 = 100 nF, f = 1 kHz, G = 20 dB, and  
L
OSC  
V
Tamb = 25° C.  
Table 5.  
Symbol  
Electrical specifications  
Parameter  
Condition  
Min  
Typ Max Unit  
Supply voltage for  
pins PVCCA, PVCCB, SVCC  
VCC  
5
18  
35  
V
Iq  
Total quiescent  
26  
mA  
µA  
mV  
mV  
A
IqSTBY  
VOS  
VOS  
IOC  
Quiescent current in standby  
Output offset voltage  
Output offset voltage  
2.5  
5.0  
Play mode  
Mute mode  
-200  
-300  
3
200  
300  
Over current protection threshold RL = 0  
5
Junction temperature at thermal  
shut-down  
Tj  
150  
°C  
Ri  
Input resistance  
Differential input  
55  
19  
60  
21  
kΩ  
VOV  
Over voltage protection threshold  
7/26  
Electrical specifications  
TDA7491HV  
Table 5.  
Symbol  
Electrical specifications (continued)  
Parameter Condition  
Min  
Typ Max Unit  
High side  
Low side  
0.2  
RdsON  
Power transistor on resistance  
Output power  
0.2  
20  
16  
THD = 10%  
THD = 1%  
Po  
W
RL = 8 , THD = 10%  
VCC = 12 V  
9.5  
7.2  
4.0  
Po  
Output power  
W
W
RL = 8 , THD = 1%  
VCC = 12 V  
Po = 20 W + 20 W,  
THD = 10%  
PD  
Dissipated power  
η
Efficiency  
Po = 20 W + 20 W  
Po = 1 W  
80  
90  
0.1  
20  
26  
30  
32  
%
%
THD  
Total harmonic distortion  
0.4  
22  
28  
32  
34  
1
GAIN0 = L, GAIN1 = L  
GAIN0 = L, GAIN1 = H  
GAIN0 = H, GAIN1 = L  
GAIN0 = H, GAIN1 = H  
18  
24  
28  
30  
-1  
GV  
Closed loop gain  
dB  
GV  
Gain matching  
Cross talk  
dB  
dB  
CT  
f = 1 kHz  
50  
20  
25  
A Curve, GV = 20 dB  
f = 22 Hz to 22 kHz  
eN  
Total input noise  
µV  
dB  
35  
Fr = 100 Hz, Vr = 0.5 V,  
CSVR = 10 µF  
SVRR  
Supply voltage rejection ratio  
40  
50  
T, Tf  
Rise and fall times  
50  
ns  
r
FSW  
Switching frequency  
Internal oscillator  
290  
310  
330  
kHz  
With internal oscillator (1) 250  
With external oscillator (2) 250  
2.3  
FSWR  
Output switching frequency  
kHz  
V
VinH  
VinL  
Digital input high (H)  
Digital input low (L)  
0.8  
STBY < 0.5 V, MUTE = X Standby  
STBY > 2.5 V, MUTE < 1 V Mute  
STBY > 2.5 V, MUTE > 2 V Play  
Function  
mode  
Standby, mute and play modes  
Mute attenuation  
AMUTE  
VMute = 1 V  
60  
80  
dB  
1. FSW = 106 / (64 * ROSC + 440) kHz, fSYNCLK = 2 * FSW with R1 in k(see Figure 22).  
2. FSW = fSYNCLK / 2 with the frequency of the external oscillator.  
8/26  
TDA7491HV  
Characterization curves  
4
Characterization curves  
4.1  
For 8 loads  
Figure 3.  
Output power vs supply voltage  
26  
24  
22  
20  
18  
16  
14  
12  
10  
8
6
4
2
0
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20  
Supply Voltage (V)  
Figure 4.  
THD + N vs output power  
THD+N (%)  
10  
5
Vs=18V  
Rl=8Ω  
2
f=1kHz  
1
0.5  
0.2  
0.1  
L CH  
0.05  
R CH  
0.02  
0.01  
100m  
200m  
500m  
1
2
5
10  
20  
Po (W)  
9/26  
Characterization curves  
Figure 5.  
TDA7491HV  
THD + N vs output power (without LC filter)  
10  
5
Vs=18V  
Rl=8Ω  
2
f=1kHz  
1
L CH  
0.5  
0.2  
0.1  
R CH  
0.05  
0.02  
0.01  
100m  
200m  
500m  
1
2
5
10  
20 30  
Po (W)  
Figure 6.  
THD + N vs frequency  
THD +N (%)  
10  
5
Vs = 18V  
2
1
Rl = 8 ohm  
0.5  
0.2  
0.1  
Pout =100mW  
0.05  
Pout =1 W  
0.02  
0.01  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
Frequency (Hz)  
Figure 7.  
Closed-loop gain vs frequency  
Ampl (dB)  
+2  
+1.5  
Gain =32 dB  
Gain =30 dB  
+1  
+0.5  
-0  
-0.5  
-1  
Gain =26 dB  
Gain =20 dB  
-1.5  
-2  
Vs = 18V  
Rl = 8 ohm  
@ f =1kHz, Po =1W  
-2.5  
-3  
-3.5  
-4  
-4.5  
-5  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
50k  
Frequency (Hz)  
10/26  
TDA7491HV  
Characterization curves  
Figure 8.  
Cross talk vs frequency  
Cross Talk (dB)  
+0  
-10  
-20  
Vs =18V  
-30  
Rl =8 ohm  
-40  
0dB @ f =1kHz  
-50  
Po =1W  
-60  
Lo to R  
-70  
-80  
Ro to L  
-90  
-100  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
Frequency (Hz)  
Figure 9.  
Power dissipation and efficiency vs output power (per channel)  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
8
7
6
5
4
3
2
1
0
0 1 2 3 4 5 6 7 8 9 1011121314151617181920  
Pout Per Channel (W)  
Figure 10. Attenuation vs mute voltage  
10.00  
0.00  
-10.00  
-20.00  
-30.00  
-40.00  
-50.00  
-60.00  
-70.00  
-80.00  
-90.00  
Vs =18V  
Rl =8 ohm  
0 dB @ f =1kHz  
Po =1W  
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50  
Mute Voltage (V)  
11/26  
Characterization curves  
Figure 11. Total quiescent current vs supply voltage  
TDA7491HV  
50  
45  
40  
35  
30  
25  
20  
15  
10  
No Load  
Play Mode  
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20  
Supply Voltage (V)  
Figure 12. Power supply rejection ratio vs frequency  
+0  
Vs =18V, Rl =8 ohm  
-10  
Gain =20 dB  
-20  
0 dB @  
-30  
Ripple Frequency =100Hz  
L-Channel  
-40  
-50  
-60  
-70  
-80  
-90  
Ripple Voltage = 500mV  
R-Channel  
-100  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
Frequency (Hz)  
4.2  
For 6 loads  
Figure 13. Output power vs supply voltage  
28  
24  
20  
16  
12  
8
4
0
5
7
9
11  
13  
15  
17  
19  
Supply Voltage (V)  
12/26  
TDA7491HV  
Characterization curves  
Figure 14. THD vs output power  
THD (%)  
10  
5
Vs = 18V  
Rl = 6 ohm  
f =1kHz  
2
1
0.5  
0.2  
0.1  
0.05  
0.02  
0.01  
0.005  
0.002  
0.001  
100m  
200m  
500m  
1
2
5
10  
20  
30  
Output Power (W)  
Figure 15. Frequency response  
Ampl (dB)  
+2  
+1.5  
+1  
+0.5  
-0  
-0.5  
-1  
-1.5  
-2  
Vs = 18V  
Rl = 6 ohm  
f =1kHz  
-2.5  
-3  
Po =1W  
-3.5  
-4  
-4.5  
-5  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
50k  
Frequency (Hz)  
Figure 16. THD vs frequency  
THD (%)  
10  
5
2
Vs = 18V  
1
Rl = 6 ohm  
0.5  
f =1kHz Po =1W  
0.2  
0.1  
0.05  
0.02  
0.01  
0.005  
0.002  
0.001  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
Frequency (Hz)  
13/26  
Characterization curves  
Figure 17. Cross talk vs frequency  
TDA7491HV  
Cross Talk (dB)  
+0  
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
Vs =18V  
Rl =6 ohm  
f =1kHz  
Po =1W  
Lo to R  
Ro to L  
-100  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
Frequency (Hz)  
Figure 18. FFT performance (0 dB)  
FFT (dB)  
+10  
+0  
-10  
-20  
Vs =18V  
-30  
Rl =6 ohm  
-40  
-50  
f =1kHz  
-60  
Po =1W  
-70  
-80  
-90  
-100  
-110  
-120  
-130  
-140  
-150  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
Frequency (Hz)  
Figure 19. FFT performance (60 dB)  
FFT (dB)  
+10  
+0  
-10  
-20  
Vs =18V  
-30  
Rl =6 ohm  
-40  
-50  
@ f =1kHz  
-60  
Po =1W  
-70  
-80  
-90  
-100  
-110  
-120  
-130  
-140  
-150  
20  
50  
100  
200  
500  
1k  
2k  
5k  
10k  
20k  
Frequency (Hz)  
14/26  
TDA7491HV  
Characterization curves  
4.3  
For 4 loads  
Figure 20. Output power vs supply voltage  
22  
20  
18  
16  
14  
12  
10  
8
6
4
2
0
5
6
7
8
9
10 11 12 13 14  
Supply Voltage (V)  
15/26  
Package information  
TDA7491HV  
5
Package information  
®
In order to meet environmental requirements, ST offers these devices in ECOPACK  
packages. These packages have a Lead-free second level interconnect. The category of  
second Level Interconnect is marked on the package and on the inner box label, in  
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering  
conditions are also marked on the inner box label. ECOPACK is an ST trademark.  
ECOPACK specifications are available at: http://www.st.com.  
Figure 21. PowerSSO-36 package dimensions  
m
m
in c h  
D MI  
.
M NI .  
2.15  
2 .1 5  
0
TYP.  
M
AX . MIN . T YP. MAX.  
Outline and mechanical data  
A
A 2  
a 1  
b
2.4 7 0.08 4  
2.4 0 0.084  
0.0 7 5  
0.097  
0.09 4  
0.00 3  
0.014  
0.012  
0.413  
0
0.18  
0.23  
10.10  
0.3 6 0.00 7  
0.3 2 0.00 9  
10 .50 0 .3 98  
c
(1)  
D
(1)  
E
7 .4  
7.6  
0 2. 91  
0.299  
e
e 3  
F
0.5  
8 .5  
2.3  
0 .0 19  
0.335  
0 .0 90  
G
G1  
H
h
0.1 0  
0 .06  
0.00 4  
0 .0 02  
0.413  
0.01 6  
10.1 0  
0.55  
1 0.5 0 0.39 8  
0.4 0  
k
û
5û  
L
0.9 0 0.02 2  
0.035  
M
N
O
Q
S
4.3  
0 .1 69  
10û  
1 0û  
1.2  
0.8  
2.9  
.65  
1.0  
0 .0 47  
0 .0 31  
0 .1 14  
0.144  
0 .0 39  
T
U
X
PooweerSrSO-36  
4.1  
6.5  
4 .7  
7 .3  
0.161  
0.256  
0 1. 85  
0 2. 87  
Y
exposed pad (or slug) down  
(1) "D” a n d“E" d on ot in clu de m ldoflash o rp ro rtu sio n sM o lfdla sh  
o r por trusio n ssh a ll n oetxce e d 01 .5  
m
m
pide er 0s( 0. 0 6”)  
h
x 4û5  
G
L
E
A
D
C
O
P
L
A
D
N A R IT Y  
A
e
Y
T
L
M
B
O
T
T
O
M
V
IE  
W
B
M
A
B
0 .1  
b
e
3
7587 1 31  
A
16/26  
TDA7491HV  
Application circuit  
6
Application circuit  
Figure 22. Application circuit  
TDA7491HV  
Input settings for gain:  
Input settings for standby, mute and play:  
STBY : MUTE Mode  
GAIN0 : GAIN1  
Nominal gain  
0 V : 0 V  
20 dB  
26 dB  
30 dB  
32 dB  
0 V : 0 V  
Standby  
Standby  
Mute  
0 V : 3.3 V  
3.3 V : 0 V  
3.3 V : 3.3 V  
0 V : 3.3 V  
3.3 V : 0 V  
3.3 V : 3.3 V  
Play  
17/26  
Application information  
TDA7491HV  
7
Application information  
7.1  
Mode selection  
The three operating modes of the TDA7491HV are set by the two inputs STBY (pin 20) and  
MUTE (pin 21).  
"
"
Standby mode: all circuits are turned off, very low current consumption.  
Mute mode: inputs are connected to ground and the positive and negative PWM  
outputs are at 50% duty cycle.  
"
Play mode: the amplifiers are active.  
The protection functions of the TDA7491HV are realized by pulling down the voltages of the  
STBY and MUTE inputs shown in Figure 23. The input current of the corresponding pins  
must be limited to 200 µA.  
Table 6.  
Mode settings  
Mode Selection  
STBY  
MUTE  
X (don’t care)  
Standby  
Mute  
L (1)  
H (1)  
H
L
Play  
H
1. Drive levels defined in Table 5: Electrical specifications on page 7.  
Figure 23. STBY and MUTE circuit  
TDA7491HV  
Figure 24. Turn on/off sequence for minimizing speaker “pop”  
18/26  
TDA7491HV  
Application information  
7.2  
Gain setting  
The gain of the TDA7491HV is set by the two inputs, GAIN0 (pin 30) and GAIN1 (pin 31).  
Internally, the gain is set by changing the feedback resistors of the amplifier.  
Table 7.  
Gain settings  
GAIN0  
GAIN1  
Nominal gain, Gv (dB)  
0
0
1
1
0
1
0
1
20  
26  
30  
32  
7.3  
Input resistance and capacitance  
The input impedance is set by an internal resistor Ri = 60 k(typical). An input capacitor  
(Ci) is required to couple the AC input signal.  
The equivalent circuit and frequency response of the input components are shown in  
Figure 25. For Ci = 220 nF the high-pass filter cut-off frequency is below 20 Hz:  
fc = 1 / (2 * π * Ri * Ci)  
Figure 25. Device input circuit and frequency response  
19/26  
Application information  
TDA7491HV  
7.4  
Internal and external clocks  
The clock of the class-D amplifier can be generated internally or can be driven by an  
external source.  
If two or more class-D amplifiers are used in the same system, it is recommended that all  
devices operate at the same clock frequency. This can be implemented by using one  
TDA7491HV as master clock, while the other devices are in slave mode (that is, externally  
clocked. The clock interconnect is via pin SYNCLK of each device. As explained below,  
SYNCLK is an output in master mode and an input in slave mode.  
7.4.1  
Master mode (internal clock)  
Using the internal oscillator, the output switching frequency, F , is controlled by the  
SW  
resistor, R  
, connected to pin ROSC:  
OSC  
6
F
= 10 / (64 * R  
+ 440) kHz  
SW  
OSC  
where R  
is in k.  
OSC  
In master mode, pin SYNCLK is used as a clock output pin, whose frequency is:  
F
= 2 * F  
SYNCLK  
SW  
For master mode to operate correctly then resistor R  
must be less than 60 kas given  
OSC  
below in Table 8.  
7.4.2  
Slave mode (external clock)  
In order to accept an external clock input the pin ROSC must be left open, that is, floating.  
This forces pin SYNCLK to be internally configured as an input as given in Table 8.  
The output switching frequency of the slave devices is:  
F
= F  
/ 2  
SYNCLK  
SW  
Table 8.  
How to set up SYNCLK  
Mode  
ROSC  
SYNCLK  
Master  
Slave  
R
OSC < 60 kΩ  
OUTPUT  
INPUT  
Floating (not connected)  
Figure 26. Master and Slave Connection  
TDA7491HV  
TDA7491HV  
20/26  
TDA7491HV  
Application information  
7.5  
Filterless modulation  
The output modulation scheme of the BTL is called unipolar pulse width modulation (PWM).  
The differential output voltages change between zero and +Vcc and between zero and -Vcc.  
This is in contrast to the traditional bipolar PWM outputs which change between +Vcc  
and -Vcc.  
An advantage of this scheme is that it effectively doubles the switching frequency of the  
differential output waveform. The OUTP and OUTN are in the same phase when the input is  
zero, then the switching current is low and the loss in the load is small. In practice, a short  
delay is introduced between these two outputs in order to avoid the BTL output switching at  
the same time.  
TDA7491HV can be used without a filter before the speaker, because the frequency of the  
TDA7491HV output is beyond the audio frequency, the audio signal can be recovered by the  
inherent inductance of the speaker and natural filter of the human ear.  
Figure 27. Unipolar PWM output  
21/26  
Application information  
TDA7491HV  
7.6  
Output low-pass filter  
To avoid EMI problems, it may be necessary to use a low-pass filter before the speaker. The  
cutoff frequency should be larger than 22 kHz and much lower than the output switching  
frequency. It is necessary to choose the L-C component values depending on the loud  
speaker impedance. Some typical values, which give a cut-off frequency of 27 kHz, are  
shown in Figure 28 and Figure 29 below.  
Figure 28. Typical LC filter for a 8-speaker  
Figure 29. Typical LC filter for a 4-speaker  
22/26  
TDA7491HV  
Application information  
7.7  
Protection function  
The TDA7491HV is fully protected against over-voltages, under-voltages, over- currents and  
thermal overloads as explained here. See also Table 5: Electrical specifications on page 7.  
Over-voltage protection (OVP)  
If the supply voltage exceeds 20 V (nominal) the over-voltage protection is activated which  
forces the outputs to the high-impedance state. When the supply voltage drops to below the  
threshold value the device restarts.  
Under-voltage protection (UVP)  
If the supply voltage drops below 4 V (nominal) the under-voltage protection is activated  
which forces the outputs to the high-impedance state. When the supply voltage recovers the  
device restarts.  
Over-current protection (OCP)  
If the output current exceeds 4 A (nominal) the over-current protection is activated which  
forces the outputs to the high-impedance state. Periodically, the device attempts to restart. If  
the over-current condition is still present then the OCP remains active. The restart time,  
T
, is determined by the R-C components connected to pin STBY.  
OC  
Thermal protection (OTP)  
If the junction temperature, T , reaches 145° C (nominally), the device goes to mute mode  
j
and the positive and negative PWM outputs are forced to 50% duty cycle. At Tj = 155° C  
(nominally), the device shuts down and the output is forced to the high impedance state.  
When the device cools sufficiently the device restarts.  
7.8  
Diagnostic output  
The output pin DIAG is an open drain transistor. When the protection is activated it is in the  
high-impedance state. The pin can be connected to a power supply (< 20 V) by a pull-up  
resistor whose value is limited by the maximum sinking current (200 µA) of the pin.  
Figure 30. Behavior of pin DIAG for various protection conditions  
TDA7491HV  
23/26  
Application information  
TDA7491HV  
7.9  
Heatsink requirements  
A thermal resistance of 24° C/W can be obtained using the PCB copper ground layer with  
16 vias connecting it to the contact area for the slug. Ensure that the copper ground area is  
2
a nominal 9 cm for 24° C/W.  
2
2
Figure 31 shows the derating curves for copper areas of 4 cm and 9 cm .  
As with most amplifiers, the power dissipated within the device depends primarily on the  
supply voltage, the load impedance and the output modulation level.  
The maximum estimated power dissipation for the TDA7491HV is less than 4 W. When  
properly mounted on the above PCB the junction temperature could increase by 96° C.  
However, with a musical program the dissipated power is about 40% less, leading to a  
temperature increase of around 60° C. Even at the maximum recommended ambient  
temperature for consumer applications of 50° C there is still a clear safety margin before the  
maximum junction temperature (150° C) is reached.  
Figure 31. Power derating curves for PCB used as heatsink  
8
7
6
5
4
3
2
1
0
Pd (W)  
Copper Area 3x3 cm  
and via holes  
TDA7491HV  
PSSO-36  
Copper Area 2x2 cm  
and via holes  
0
20  
40  
60  
80  
100 120  
140 160  
Tamb ( °C)  
24/26  
TDA7491HV  
Revision history  
8
Revision history  
Table 9.  
Date  
11-Dec-2007  
Document revision history  
Revision  
Changes  
1
Initial release.  
25/26  
TDA7491HV  
Please Read Carefully:  
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the  
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any  
time, without notice.  
All ST products are sold pursuant to ST’s terms and conditions of sale.  
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no  
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.  
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this  
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products  
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such  
third party products or services or any intellectual property contained therein.  
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED  
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED  
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS  
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.  
UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT  
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING  
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,  
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE  
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.  
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void  
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any  
liability of ST.  
ST and the ST logo are trademarks or registered trademarks of ST in various countries.  
Information in this document supersedes and replaces all information previously supplied.  
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.  
© 2007 STMicroelectronics - All rights reserved  
STMicroelectronics group of companies  
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -  
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America  
www.st.com  
26/26  
配单直通车
TDA7491HV产品参数
型号:TDA7491HV
Brand Name:STMicroelectronics
是否Rohs认证: 符合
生命周期:Obsolete
零件包装代码:SSOP
包装说明:SSOP-36
针数:36
Reach Compliance Code:not_compliant
ECCN代码:EAR99
HTS代码:8542.33.00.01
风险等级:5.51
标称带宽:22 kHz
商用集成电路类型:AUDIO AMPLIFIER
增益:32 dB
谐波失真:10%
JESD-30 代码:R-PDSO-G36
长度:10.3 mm
湿度敏感等级:1
信道数量:2
功能数量:1
端子数量:36
最高工作温度:70 °C
最低工作温度:
标称输出功率:20 W
封装主体材料:PLASTIC/EPOXY
封装代码:HSSOP
封装等效代码:SSOP36,.4,20
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH
峰值回流温度(摄氏度):NOT SPECIFIED
电源:18 V
认证状态:Not Qualified
座面最大高度:2.47 mm
子类别:Audio/Video Amplifiers
最大压摆率:35 mA
最大供电电压 (Vsup):18 V
最小供电电压 (Vsup):5 V
表面贴装:YES
技术:BIPOLAR
温度等级:COMMERCIAL
端子形式:GULL WING
端子节距:0.5 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.5 mm
Base Number Matches:1
  •  
  • 供货商
  • 型号 *
  • 数量*
  • 厂商
  • 封装
  • 批号
  • 交易说明
  • 询价
批量询价选中的记录已选中0条,每次最多15条。
 复制成功!