Description

The SG3842GAS is an electronic component model belonging to the IC Chips product category. It is a current-mode PWM controller that offers high performance and incorporates Green-mode power saving features. This controller is designed with improved features and functionality compared to the bipolar UC384x devices. The SG3842GAS is compatible with the BiCMOS fabrication process, allowing for low start-up and operating currents, thereby enhancing power conversion efficiency. It has a slew rate controlled high current totem pole output, ideal for driving power MOSFETs while minimizing electromagnetic interference (EMI).

Specifications and features

- Fully pin-to-pin compatible with bipolar UC384x devices

- Linearly decreasing PWM frequency

- Burst-mode at low/zero load

- 5uA start-up current

- 5mA operating current

- Vcc over voltage protection

- Cycle-by-cycle current limiting

- Zero cross-conduction

- Slew rate controlled high current totem pole output

- Fast current sense propagation delay

- Under voltage lockout (UVLO) with hysteresis

Application Scenarios

- Switching mode power supplies

- Power converters

Comparison

No advantages or disadvantages specified for this model.