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PI5PD2557ZCEX PDF预览

PI5PD2557ZCEX

更新时间： 2024-02-12 00:25:32
品牌 Logo 应用领域
百利通 - PERICOM /
页数 文件大小 规格书
12页 897K
描述
Precision Adjustable Current -Limited Power Switch

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中文翻译

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PI5PD2557ZCEX 数据手册

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PI5PD2556/2557  
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Precision Adjustable Current -Limited Power Switch  
Features  
Description  
Meets USB Current-Limiting Requirement  
±6.5% Current-Limit Accuracy at 4.0A  
Adjustable Current Limit, 500mA-5A (typ.)  
Fast Over-current Response - 3.5μS (typ.)  
22mΩ High-Side MOSFET  
The PI5PD2556/2557 series is single-channel power-  
distribution switch intended for applications where  
precision current limiting is required or heavy capacitive  
loads and short circuits are encountered. These devices  
offer a programmable current-limit threshold between  
500 mA and 5A (typ) per channel via an external resistor.  
The power-switch rise and fall times are controlled to  
minimize current surges during turn on/off.  
Operating Range: 2.5 V to 5.5V  
2-μA Maximum Standby Supply Current  
Built-in Soft-Start  
15 kV / 8 kV System-Level ESD Capable  
Device Package: TDFN 3x3-8L  
UL Listed – File No. E341484  
CB Certified  
Each channel of the PI5PD2556/2557 devices limits the  
output current to a safe level by switching into a  
constant-current mode when the output load exceeds the  
current-limit threshold.  
Applications  
Typical Application Circuit  
USB Ports/Hubs  
Digital TV  
IN  
IN  
OUT  
VIN  
Vout  
Cout  
Set-Top Boxes  
VOIP Phones  
R1  
Cin  
OUT  
ILIM  
100k  
0.1uF  
/FAULT  
EN  
/FAULT1 Signal  
Pin Configuration  
Radj  
Control Input  
GND  
1
GND  
8
7
6
5
FAULT  
OUT  
P ower Pa d  
2
3
4
IN  
IN  
OUT  
Figure 1 Typical Application Circuit  
ILIM  
/EN(EN)  
TDFN 3x3-8L (Top View)  
Pin Description  
Pin Name  
Pin No.  
Type  
Description  
PI5PD2556 PI5PD2557  
1
2, 3  
4
GND  
IN  
-
I
Ground.  
Power input voltage.  
Enable input, logic low turns on power switch for PI5PD2556, logic high  
turns on power switch for PI5PD2557.  
/EN  
EN  
I
External resistor used to set current-limit threshold; recommended 20 kΩ ≤  
RILIM ≤ 187 kΩ.  
5
ILIM  
OUT  
I
6, 7  
8
O
O
Power switch output for channel two  
Active-low open-drain output, asserted during over-current or over-  
temperature condition or reverse voltage occurs  
/FAULT  
2015-08-0011  
PT0497-4  
08/31/15  
1
1234567...12

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