Weltrend | Products

Supervisor ICs

WT7579

WT7579 is a switching power supply supervisor which monitors VX, V33, V5, V12A, V12B,V12C and V12D input voltage level The protections include Over Voltage Protection (OVP),Under Voltage Protection (UVP), Over Current Protection (OCP), External Voltage Protection(VX), and Under Voltage Lockout (UVLO). When fault condition is detected, PGO is asserted to LOW and FPOB latched HIGH.

Features

- 3.3V, 5V and four channel 12V for OVP, UVP and OCP
- VX >1.2V provide an External Protection.
- Fault protection (FPOB) latch with open-drain output stage
- Power Good Output (PGO) with open-drain output stage
- 3 ms UVP/VX debounce.
- 14 μs OVP debounce
- 20 ms OCP debounce
- 38 ms PSONB debounce
- 73 μs PGI debounce
- 300 ms PGO delay
- 4ms PSONB control to FPOB turn-off delay
- VCC under voltage lockout
- Short-circuit turn-on protection
- Package Type: PDIP-18/20 and SOP-18/20

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