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This literature is subject to all applicable copyright laws and is not for resale in any manner.SG6516 PC Power Supply Supervisors April 2008 SG6516 PC Power Supply Supervisors Features Description The SG6516 is designed to provide the supply voltage, Two 12V Sense Input Pins: VS12 and VS12B current supervisor, remote on/off (PSON), power good Over-Voltage Protection (OVP) for 3.3V, 5V, (PGO) indicator, and fault protection (FPO) functions for and two 12V switching power systems. Over-Current Protection (OCP) for 3.3V, 5V, For supervisory functions, it provides the over-voltage and two 12V protection (OVP) for 3.3V, 5V, and two 12V over- current protection (OCP) for 3.3V, 5V, and two 12V Under-Voltage Protection (UVP) for 3.3V, 5V, under-voltage protection (UVP) for 3.3V, 5V, and two and two 12V 12V. When 3.3V, 5V, or 12V voltage decreases to 2.3V, Open-Drain Output for PGO and FPO Pins 3.5V, and 9V, respectively, the under-voltage protection function is enabled. FPO is set HIGH to turn off the 300ms Power-Good Delay PWM controller IC. The voltage difference across 2.8ms PSON Control to FPO Turn-off Delay external current shunt is used for OCP functions. An external resistor can be used to adjust the protection 48ms PSON Control Delay threshold. An additional protection input pin provides No Lock-up During the Fast AC Power On/Off the flexibility for designing protection circuits. Wide Supply Voltage Range: 4V to 15V The power supply is turned on after a 48ms delay when PSON signal is set from HIGH to LOW. To turn off the power supply, the PSON signal is set from LOW to Applications HIGH with a delay of 48ms. The PGI circuitry provides a power-down warning signal for PGO. When PGI input is Switch-Mode Power Supplies with Active PFC lower than the internal 1.25V reference voltage, the PGO signal is pulled LOW. Servo System Power Supplies PC-ATX Power Supplies Ordering Information Packing Part Number Operating Temperature Range Package Method SG6516DZ -40C to +85C 16-pin Dual In-Line Package (DIP) Rail SG6516SZ -40C to +85C 16-pin Small Outline Package (SOP) Tape & Reel All packages are lead free per JEDEC: J-STD-020B standard. 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com SG6516 Rev. 1.0.2