CXAS42272有几种保护功能，包括带折叠的限流和热关机，以防止在连续重负载或短路发生时，由于增加功耗而导致灾难性开关故障。内置电荷泵用于驱动无寄生体二极管的N沟道MOSFET，以消除开关断电时的反向电流。OC是开路漏极输出报告过电流或过温事件，具有典型的9ms脱胶超时时间。CXAS42272是一个自供电的集成电源开关。CXAS42272的典型RDS（ON）为70mohm。
·70mΩ高侧MOSFET
·内部电流限制为3.3A（典型值）
工作范围：2.7V至5.5V
·典型上升时间为1毫秒
快速过电流响应：3μS（典型）
“欠压锁定
·100μA静态电源电流
·1μA最大关闭电源电流
逻辑电平启用引脚，可用于高电平或低电平
·断电时无反向电流
·电流标志输出（OC）上的脱胶开路漏极
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[ CXAS42272 ]
目录
7.相关产品
产品概述 返回TOP
Several Protection features include current limiting with foldback, and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. A built-in charge pump is used to drive the N-channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. OC is open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period.The CXAS42272 is an integrated power switch for self-powered. The CXAS42272 has a typical RDS(ON) of 70mohm.
产品特点 返回TOP
„ 70mΩ High-Side MOSFET
„ Internal Current Limit to 3.3A (TYP)
„ Operating Range:2.7V to 5.5V
„ 1mS Typical Rise Time
„ Fast Overcurrent Response:3μS (TYPICAL)
„ Under voltage Lockout
„ 100μA Quiescent Supply Current
„ 1μA Maximum Shutdown Supply Current
„ Logic Level Enable Pin, Available with Active-High or Active-Low Version
„ No Reverse Current when Power Off
„ Deglitched Open-Drain Over-Current Flag Output ( OC )
„ MSOP-8 Package
应用范围 返回TOP
„ High-Side Power Protection Switch
„ USB Power Management
„ Hot Plug-In Power Supplies
„ Battery-Charger Circuits
技术规格书（产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
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Single Power Switch |
|||||||||
|
Part NO. |
Vin(V) min. |
Vin(V) max. |
RON (Ohm) |
VOUT rising (μs) |
Ilimit (A) |
OC Flag |
Discharge (Ohm) |
Note |
Package |
|
1 |
3.6 |
25 |
140 |
1 |
N |
80 |
RON = 56m ohm@VIN = 1.2V |
WLCSP2X2-4 |
|
|
1 |
3.6 |
78 |
48/220 |
0.5 |
N |
88/N |
RON = 146m ohm@VIN = 1.2V |
WLCSP2X2-4 |
|
|
1.5 |
5 |
25 |
130 |
3 |
N |
250 |
RON = 68m ohm@VIN = 1.5V |
WLCSP2X2-4 |
|
|
1.5 |
5.5 |
20 |
3300 |
3 |
N |
N |
RON = 48m ohm@VIN = 1.5V |
WLCSP2X3-6 |
|
|
0.6 |
5.5 |
12 |
ADJ |
12 |
N |
150 |
HV Vbias Needs |
ADFN2X2-8 |
|
|
2.7 |
5.5 |
120 |
150 |
2 |
N |
75 |
N/A |
SOT-23-5 |
|
|
2.7 |
5.5 |
120 |
1900 |
2 |
N |
75 |
SS |
SOT-23-5 |
|
|
2.7 |
5.5 |
120 |
1900 |
2.5 |
N |
R |
SS,External discharging |
SOT-23-5/ADFN1.5X1.5-6 |
|
|
2.7 |
5.5 |
70 |
1400 |
1 |
Y |
130 |
N/A |
SOT-23-5 |
|
|
2.7 |
5.5 |
90 |
1200 |
ADJ |
-- |
-- |
-- |
SOT-23-5 |
|
|
2.7 |
5.5 |
90 |
1500 |
ADJ |
Y |
N |
SS, OC Setting by a R |
SOP-8/TDFN2X2-6/ MSOP-8 |
|
|
2 |
5.5 |
80 |
2500 |
2.5 |
N |
153 |
Turn on delay 800us |
TDFN2X2-8 |
|
|
2 |
5.5 |
85 |
1500 |
2.5 |
N |
153 |
Turn on delay 800us |
SOT-23-5 |
|
|
1.5 |
5.5 |
80 |
1000 |
-- |
N |
R |
External discharging |
TDFN1.6X1.6-6 |
|
|
2.7 |
5.5 |
70 |
1000 |
1.2 |
Y |
N |
SS, Fast SCP, HML 2.0 VOUT Reverse-Voltage Protection |
SOT-23-6 |
|
|
2.7 |
5.5 |
70 |
1000 |
3.3 |
Y |
N |
N/A |
MSOP-8 |
|
|
2.7 |
5.5 |
70 |
1000 |
1.5 |
Y |
N |
N/A |
SOP-8 |
|
|
2.7 |
5.5 |
125 |
1500 |
0.45 |
Y |
75 |
N/A |
SOP-8 |
|
|
2.7 |
5.5 |
70 |
1500 |
2.5 |
Y |
70 |
N/A |
SOP-8/MSOP-8/ TDFN3X3-8 |
|
|
0.6 |
5.5 |
5.5 |
ADJ |
10 |
N |
150 |
Need a 5V Bbias, A/B/C = 5.5/11/22 m ohm; 10A/6A/4A |
TDFN3X3-8/MSOP-8(FD)/SOT-23-6 |
|
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