PS222S Datasheet PDF - Unspecified

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●Silicon Touch Technology Inc.

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●General Description

●PS222S is specially designed for switching power supply system.   Four important functions of PS222S are the following: over-voltage protection,over-current protection, under-voltage protection and power good signal generating. OVP/UVP (Over-Voltage/Under-Voltage Protection) monitors 3.3V, 5V and 12V to protect our power supply. FPO/ goes tohigh when one of these  supply voltages exceeds their normal operation voltage range.

●Features

●• Over/Under-voltage protection and lock out 

●• Over-current protection and lock out

●• Fault protection output with open drain output stage

●• Open drain power good output signal for power good input 

●• Built-in 300mS power good delay

●• AC on 75mS delay for UV/OC protection

●• 38mS PSON/ control de-bounce

●• 73uS de-bounce for noise immunity

●• Wide power supply range (4.2V~16V)

●• Special care for AC power off