IC manufacturers Texas Instruments

IC manufacturers (99)

Texas Instruments UCC28740-Q1 | Demoboard PMP41009 REV A

Automotive ultra low standby, flyback controller with integrated HV startup and optocoupler feedback

Overview

TopologyFlyback Converter
Input voltage350-1000 V
Output 114 V

Description

This reference design provides isolated 14-V and 56-W outputs with a quasi-resonant flyback topology. The power supply can be powered from the 350-V to 1000-V DC input. This design uses cascode MOSFETs and flyback controller UCC28740-Q1. The line and load regulation are regulated to within ±1% precision. The peak efficiency is 84.6% at 1000-V input and 56-W output.

Features

  • Wide input range: 350-V to 1000-V DC
  • High-precision output voltage
  • Peak efficiency 84.6% at 1000-V input and 56-W output
  • Quasi-resonant mode controller improves EMI performance

Typical applications

  • Traction inverter HV to LV backup supply, HVAC compressor HV isolated power supply, PTC heater HV isolated power supply

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples
7447462010SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI Radial Leaded Wire Wound Inductor 1 8.5 8 0.015 140 Heat Shrinking Tube
750345192SPEC
Active i| Production is active. Expected lifetime: >10 years. Flyback Transformer
Order Code Data­sheet Simu­lation
7447462010SPEC
750345192SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples