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SI-8050JF 参数 Datasheet PDF下载

SI-8050JF图片预览
型号: SI-8050JF
PDF下载: 下载PDF文件 查看货源
内容描述: 降压至5.0 V , 1.5 A , DC / DC转换器 [Step-Down to 5.0 V, 1.5 A, DC/DC Converter]
分类和应用: 转换器稳压器开关式稳压器或控制器电源电路开关式控制器局域网
文件页数/大小: 9 页 / 329 K
品牌: ALLEGRO [ ALLEGRO MICROSYSTEMS ]
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SI-8050JF
Step-Down to 5.0 V, 1.5 A, DC/DC Converter
Designed to meet high-current requirements at high efficiency in
industrial and consumer applications; embedded core, memory, or logic
supplies; TVs, VCRs, and office or telecommunications equipment, the
SI-8050JF dc/dc step-down (buck) converter offers a constant 125 kHz
switching frequency essential for low EMI noise. The npn switch is
included on the die along with the oscillator, control, and logic circuitry
requiring only four external components for a regulated 5.0 V output at
up to 1.5 A.
A wide input voltage range and integrated thermal and overcurrent
protection enhance overall system reliability. Reference accuracy and
excellent temperature characteristics are provided. An output-enable
input gives the designer complete control over power up, standby, or
power down.
This device is supplied in a fully molded TO-220-style 5-lead
flange-mounted , high power, isolated plastic package. A similar device
in a lower-power surface-mount plastic package is the SI-8050JD.
Data Sheet
27469.32*
ABSOLUTE MAXIMUM RATINGS
Input Voltage, V
I
. . . . . . . . . . . . .
43 V
FEATURES
7 V to 40 V Input Range
1.5 A Output Current at 5.0 V
2% Output Voltage Tolerance
Foldback Current Limiting
Constant 125 kHz Switching Frequency
200 µA Maximum Standby Current
Soft Start Prevents Supply Voltage Dip
Remote Voltage Sensing
Thermal Protection
APPLICATIONS
TVs, VCRs, Electronic Games
Embedded Core, Memory, or Logic Supplies
Printers and Other Office Equipment
Industrial Machinery
Telecommunications Equipment
Output Current, I
O
. . . . . . . . . . .
1.5 A*
Enable Input Voltage, V
OE . . . . . . . . . . .
6 V
Junction Temperature, T
J
. . . .
+125°C
Storage Temperature Range,
T
S
. . . . . . . . . . . .
-40°C to +125°C
* Output current rating is limited by input
voltage, duty cycle, and ambient tempera-
ture. Under any set of conditions, do not
exceed a junction temperature of +125°C.
Always order by complete part number, e.g.,
SI-8050JF
.
Sanken Power Devices
from Allegro MicroSystems