The document describes the features and characteristics of a PC half-bridge power supply supervisor + PWM product called SG6108. It is highly integrated and requires few external components. It features over-voltage protection, under-voltage protection, over-current protection, over-power protection, short circuit protection, etc. It is suitable for switching mode power supplies for computers such as ATX, NLX, and SFX.
The SG6108 is designed for desktop PC PWM switching mode power supplies, providing all necessary circuitry to monitor and control output rails. It supports push-pull and half-bridge topologies with features like remote ON/OFF control, over-voltage/under-voltage protection, and cycle-by-cycle current limiting.
| Supply Voltage (VCC) | 4.5 to 5.5 V |
|---|---|
| Operating Ambient Temperature | -20 to +85 °C |
| Storage Temperature Range | -55 to +150 °C |
| PWM Frequency | 60 kHz (Typ) |
| Maximum Duty Cycle | 48% |
The typical thresholds are 3.9 V for 3.3V rails, 6.1 V for 5V rails, and 14.05 V for 12V rails.
The timing for PG Delay is typically 300 ms.