Weltrend WT7520
The WT7520 is a pulse–width modulation (PWM) control circuit with complete protection circuits for used in the SMPS (Switched Mode Power Supply). It contains various functions, which are Over Voltage Protection, Under Voltage Protection, Power Good Output (PGO), Remote On/Off control and etc. It can minimize external components of switching power supply systems in personal computer.| Part No. | WT7520 |
|---|---|
| Datasheet | WT7520 Download |
| Manufacturer |  Weltrend |
| Description | PC Power Supply PWM |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Over Voltage Protection (OVP) monitors 3.3V, 5V, 12V and PT input voltage level. Under Voltage Protection (UVP) monitors 3.3V, 5V and 12V input voltage level. Power Good Output monitors the voltage level of power supply.FEATURES
● Complete PWM Control and Protection Circuitry● Over Voltage Protection for 3.3V / 5V / 12V / PT
● Under Voltage Protection for 3.3V / 5V / 12V
● 280ms PG Time Delay
● Power Good Output is Open Drain Output
● PWM Control Output are Open Drain Output
● 280 mS Time Delay for UVP
● Remote ON/OFF function De–bounce Time
● Soft-Start function built-in
● 16–Pin Dual In–line Package PIN CONFIGURATION V33 V5 V12 PT GND RT C1 C2 7520 1 16 2 15 3 14 4 13 5 12 6 11 7 10 89 VADJ OPNEGIN OPOUT VCC DET PG SS REM Ordering Number WT7520 Package Type DIP 16 Weltrend Semiconductor, Inc. Page 2 WT7520 Data Sheet Rev. 0.90 PIN
DESCRIPTION
Pin No. 1 V33 2 V5 3 V12 4 PT 5 GND 6 RT 7 C1 8 C2 9 REM Pin Name 10 SS 11 PG 12 DET 13 VCC 14 OPOUT 15 OPNEGIN 16 VADJ TYPE I I I I P O O O I O O I P O I I FUNCTION OVP/UVP input FOR 3.3V.
