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ST890CDR
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ST890CDR数据手册
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April 2009 Doc ID 8422 Rev 2 1/13
AN1441
Application note
ST890: a high side switch
for PCMCIA and USB applications
Introduction
The ST890 is a low voltage, P-channel MOSFET power switch, intended for high side load
switching applications. Its main applications are PCMCIA slots, portable equipment and
access bus slots. The device is useful in all the applications that need a supply with short-
circuit protection and programmable current limitation, such as slots in which cards can be
connected and disconnected without turning off the power supply.
Figure 1. ST890 internal block diagram
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ST890CDR 数据手册

ST Microelectronics(意法半导体)
21 页 / 0.6 MByte
ST Microelectronics(意法半导体)
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ST890 数据手册

ST Microelectronics(意法半导体)
1.2 A电流限制的高侧电源与热关断开关 1.2 A current limited high side power switch with thermal shutdown
ST Microelectronics(意法半导体)
STM系列 SO-8 1.2 A 电流限制 高边 电源开关 带过热关断
ST Microelectronics(意法半导体)
1.2A电流限制和热关断功能的高端电源开关
ST Microelectronics(意法半导体)
ST890 系列 1.2 A 电流限制 高压侧 电源开关 带过热关断
ST Microelectronics(意法半导体)
1.2A电流限制高,热关断SIDE 1.2A CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN
ST Microelectronics(意法半导体)
1.2A电流限制高,热关断SIDE 1.2A CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN
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