TIUCC28C53DR
Overview
The UCC28C53DR is a high-performance current-mode PWM controller designed for efficient DC-DC conversion in various topologies including flyback, boost, and forward converters. This functional-safety-capable IC features a low 75 microamp startup current and supports a wide VDD range up to 30V, making it suitable for both industrial and high-reliability power supply designs.
Why Choose This Part
This controller offers a highly accurate +/-1% internal 2.5V reference and rail-to-rail output drivers capable of sourcing 1A, which simplifies MOSFET gate drive circuits. Its low operating current of 1.3 mA at 52 kHz enhances overall system efficiency, while its pin-to-pin compatibility with the UCCx8C4x family allows for easy performance upgrades in existing designs.
Applications
Key Specifications
Getting Started
To evaluate this part, designers can use TI's Power Stage Designer software to calculate transformer and compensation components. When prototyping on a PCB, ensure the bypass capacitor for VDD is placed as close to the IC pins as possible to minimize switching noise and ensure stable operation of the current sense comparator.
