CXAS42279是一个集成的双通道87mΩ电源开关,用于自供电和总线供电的通用串行总线(USB)应用。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流或过温事件,具有典型的9ms脱胶超时时间。
87mΩ高边MOSFET
·提供4种版本的电流限制和折叠
工作范围:2.7V至5.5V
·400μS典型上升时间
“欠压锁定
·65μA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
[ CXAS42279 ]
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产品概述 返回TOP
产品特点 返回TOP
„ 87mΩ High-Side MOSFET
„ Available with 4 Versions of Current Limits with Foldback
„ Operating Range:2.7V to 5.5V
„ 400μS Typical Rise Time
„ Under voltage Lockout
„ 65μA Quiescent Supply Current
„ 1μA Maximum Shutdown Supply Current
„ Logic Level Enable Pin, Available with Active-High or Active-Low Version
„ No Reverse Current to VIN when Power Off
„ VOUT OFF Discharge
„ Deglitched Open-Drain Over-Current Flag Output ( OC )
„ SOP-8 Package and TDFN3X3-8 Package
„ UL Approved_#E232223
„ Nemko IEC 60950-1 CB/CCA_scheme certification Report #67291
„ CSA Approved #230321
应用范围 返回TOP
„ High-Side Power Protection Switch
„ USB Power Management
„ USB Host and Self-Powered Bubs
„ USB Bus-Powered Hubs
„ Hot Plug-In Power Supplies
„ Battery-Charger Circuits
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Dual Power Switch |
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Part NO. |
Vin(V) min. |
Vin(V) max. |
RON (Ohm) |
VOUT rising (μs) |
Ilimit (A) |
OC Flag |
Discharge (Ohm) |
Note |
Package |
0.8 |
5.5 |
10 |
ADJ |
6 |
N |
220 |
3V ~ 5V Vbias Needs |
AQFN2X2-10 |
|
0.8 |
5.5 |
16 |
ADJ |
6 |
N |
220 |
3V ~ 5V Vbias Needs |
TDFN2X3-14 |
|
2 |
5.5 |
87 |
400 |
2 |
Y |
200 |
UL,CB,A/B/C/D/ ILimit=2A/1.5A/1A/0.75A |
SOP-8 |
|
2.7 |
5.5 |
100 |
400 |
1 |
Y |
N |
UL, CB |
SOP-8 |
|
2.7 |
5.5 |
74 |
1000 |
2 |
Y |
N |
SS |
TDFN2X2-8 |
|
2.7 |
5.5 |
72 |
400 |
2 |
Y |
N |
UL,CB,EOUT1/2 ILimit=2A/1A, A/B/C/D/ ILimit=2A/1.5A/1A/0.75A |
TDFN3X3-10 |
|
2.7 |
5.5 |
118 |
400 |
0.45 |
Y |
N |
N/A |
SOP-8 |
|
2.7 |
5.5 |
118 |
400 |
2 |
Y |
N |
N/A |
SOP-8 |
|
2.3 |
5.5 |
200 |
-- |
0.27 |
Y |
N |
A/B/C/D ILimit=0.27A/0.17A/0.25A/0.15A |
TSOT-23-5 |
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