CG8525

CG8525 Data Sheet Type Description: 4-Channel PC Power Supply Supervisors with OCP Product Name: CG8525 Reversion: 1.00 Reversion Date: April 26, 2010 Page: 12 Pages Issue Date: 2010/05/04 April 26, 2010 – Rev. 0.10 Free Datasheet http://www.datasheet4u.com/ CG8525 4-Channel PC Power Supply Supervisors with OCP Description The CG8525 is a PC switching power supply monitor with minimum external components. It provides protection circuits, power-good output (PGO), fault protection output (FPOB) and on/off control (PSONB). The over-voltage protection (OVP) and under-voltage protection (UVP) monitors V33, V5, V12A and V12B. The over-current protection (OCP) monitors V33&I33, V5&I5, V12A&I12A /I12AB and V12B&I12B/I12AB. When an OV or UV or OC condition is detected, the fault protection output (FPOB) is latched high and the power good output (PGO) go low. PSONB from low to high resets the latch. When OV, UV, OC and PGI are all right, the power good output (PGO) will be issue. A built-in 4ms delay and 38ms debounce for PSONB turn off FPOB. Features ■ Over-voltage protection (OVP) for +3.3V, +5V, +12VA and +12VB supplies ■ Under-voltage protection (UVP) for +3.3V, +5V, +12VA and +12VB supplies ■ Over-current protection (OCP) for +3.3V, +5V, +12VA and +12VB supplies ■ Fault protection output (FPOB) with open drain output ■ Power good output (PGO) with open drain output ■ 300ms PGO delay time ■ 38ms PSONB debounce time ■ 35us OVP debounce time ■ 73us UVP debounce time ■ 20ms OCP ...