资料介绍
Most CMOS ICs, given proper conditions, can “latch”
(like an SCR), creating a short circuit from the positive
supply voltage to ground. This application note
explains how this occurs and what can be done to
prevent it for MOSFET drivers. AN763
Latch-Up Protection For MOSFET Drivers
Author: Cliff Ellison
Microchip Technology Inc.
Source P+
VS+
INTRODUCTION R1 Bulk
Q1 P-Channel Resistance
Most CMOS ICs, given proper conditions, can “latch” Parasitic
Drain P+
(l
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