• Part: UCC28C43
  • Description: BiCMOS Low-Power Current-Mode PWM Controller
  • Manufacturer: Texas Instruments
  • Size: 3.43 MB
UCC28C43 Datasheet (PDF) Download
Texas Instruments
UCC28C43

Description

The UCCx8C4x family are high-performance, current-mode PWM controllers.

Key Features

  • Enhanced replacement for UCx84x and UCx84xA family with pin-to-pin patibility
  • Operating frequency: 1MHz Maximum
  • 50μA Startup Current, 100μA Maximum
  • Low operating current: 2.3mA (at fOSC = 52kHz)
  • Fast, cycle-by-cycle overcurrent limiting: 35ns
  • Peak driving current: ±1A. Rail-to-rail output
  • 25ns rise time - 20ns fall time
  • ±1% accurate 2.5V error amplifier reference
  • Trimmed oscillator discharge current
  • Undervoltage lockout protections

Applications

  • General purpose single-ended DC-DC or off-line