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PS236

Silicon Touch Technology
Part Number PS236
Manufacturer Silicon Touch Technology
Description 3-Channel Secondary Monitoring IC
Published Mar 19, 2010
Detailed Description www.DataSheet4U.com PS236 Version Issue Date File Name Total Pages : A.001 : 2005/11/16 : SP-PS236-A.001.doc : 13 3-Ch...
Datasheet PDF File PS236 PDF File

PS236
PS236

Overview
www.
DataSheet4U.
com PS236 Version Issue Date File Name Total Pages : A.
001 : 2005/11/16 : SP-PS236-A.
001.
doc : 13 3-Channel Secondary Monitoring IC With an Additional OCP Channel 9 7 1 SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.
O.
C.
Tel：886-3-5645656 Fax：886-3-5645626 www.
DataSheet4U.
com PS236 PS236 3-Channel Secondary Monitoring IC With an Additional OCP Channel General Description PS236 is specially designed for switching power supply system.
Four important functions of PS236 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 13V to protect our power supply.
FPO/ goes to high when one of these supply voltages exceeds their normal operation voltage range.
OCP (Over Current Protection) monitors IS33, IS5, IS13 input current sense.
Composed of “Iref“ and “protection current range resistor”, an adjustable over-current condition helps users design OCP easily.
An additional OCP channel helps users monitor additional VSX rail output current.
Power good signal generating can notify personal computer when power supply is ready or power supply is going to shutdown, therefore it can provide a reliable power supply environment.
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 3mS delay for UV/OC protection 17uS de-bounce for noise immunity Wide power supply range (4.
2V~18V) Special care for AC power off 3-Channel Secondary Monitoring IC -1- Version：A.
001 www.
DataSheet4U.
com PS236 Block Diagram Vcc / VSx VS13 159KΩ VCCI 13 UV 6.
5KΩ Vref VCCI FPO/ 13 OV 17uS De-bounce S Q R 1MΩ 14.
5KΩ Vref POR VS5 64.
5KΩ VCCI 5 UV 6KΩ Vref VCCI 5 OV 19...


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