CXAS42284OC是开漏输出报告过流或过温事件，具有典型的9ms脱胶超时时间。CXAS42284是一个集成的双通道100mΩ电源开关，用于自供电和总线供电的通用串行总线（USB）应用。一些保护功能包括带折叠的限流功能，以及热关机，以防止连续重负荷或短路时因增加功耗而导致的灾难性开关故障。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。
·100mΩ高侧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
·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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[ CXAS42284 ]
目录
7.相关产品
产品概述 返回TOP
OC is open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period.The CXAS42284 is an integrated dual channel 100mΩ power switch for self-powered and bus-powered Universal Serial Bus (USB) applications.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. And 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.
产品特点 返回TOP
„ 100mΩ 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 when Power Off
„ Deglitched Open-Drain Over-Current Flag Output ( OC )
„ SOP-8 Package
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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产品封装图 返回TOP
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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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下一篇▶:CXAS42285 CXAS42286交换机具有内部电流限制功能以防止主机设备因故障负载条件而损坏模拟开关的导通电阻低0.2Ω工作电压范围为2.3V至5.5V反向电流限制保护快速电流限制响应时间
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