欢迎访问ic37.com |
会员登录 免费注册
发布采购

YB1313QF33 参数 Datasheet PDF下载

YB1313QF33图片预览
型号: YB1313QF33
PDF下载: 下载PDF文件 查看货源
内容描述: 1X /倍/1.5倍/ 2倍电荷泵,用于白光LED应用 [1x/1.5x/2x Charge Pump for White LED Application]
分类和应用: 接口集成电路驱动
文件页数/大小: 9 页 / 637 K
品牌: YOBON [ YOBON TECHNOLOGIES,INC. ]
 浏览型号YB1313QF33的Datasheet PDF文件第2页浏览型号YB1313QF33的Datasheet PDF文件第3页浏览型号YB1313QF33的Datasheet PDF文件第4页浏览型号YB1313QF33的Datasheet PDF文件第5页浏览型号YB1313QF33的Datasheet PDF文件第6页浏览型号YB1313QF33的Datasheet PDF文件第7页浏览型号YB1313QF33的Datasheet PDF文件第8页浏览型号YB1313QF33的Datasheet PDF文件第9页  
YB1313
1x/1.5x/2x Charge Pump for White LED Application
Description
The YB1313 charge pump is designed to drive
up to 5 white LEDs with regulated constant
current in back lit display application. The
device can provide up to 25 mA per LED for a
total of more than 125 mA. The input voltage
ranges from 2.7V to 5.5V and is ideal for
applications powered by a single LI-Ion or 3 to
4 NiCd, NiMH or Alkaline batteries.
The 1MHz fix-frequency switching allows for
tiny external components, and the regulation
scheme is optimized to ensure low EMI and
low input ripple.
Internal soft-start circuitry effectively reduces
the in-rush current. YB1313 also provides short
circuit protection, over-temperature protection
and over-voltage protection. In shutdown mode,
the shutdown current is less than 1μA. YB1313
is available in a TQFN-16 3x3 package.
Features
Input Range : 2.7V to 5.5V
Drives up to 5 LEDs at 25mA Each
1MHz Internal Oscillator
Thermal Protection Shutdown
Output Short-circuit Current Limit and
Over-voltage Protection
Under-Voltage Lockout With Hysteresis
Automatic Soft-Start Reduces In-Rush
Current
Three Charge Pump Mode:1x/1.5x/2x
3mm x 3mm TQFN package
Applications
White LED Backlighting
Handheld PCs and PDAs
Mobile Phone
Typical Application Circuit
VIN
VIN = 2.7V
To 5.5V
0. 47 µF
C1-
C2+
0. 47 µF
C2-
EN1
1 µF
EN2
C1+
VOUT
D1
D2
2.2uF
YB 1313
D3
D4
D5
ISET
GND
PGND
Figure 1. Typical application circuit
YB1313 MRev.1.1
www.yobon.com.tw
1