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reference designUCC21225 | Demoboard PMP23332

Texas Instruments UCC21225 | Demoboard PMP23332

Interleaved and multiphase inverting buck-boost converter reference design

Overview

TopologyBoost Converter
Input voltage-62 - -36 V
Output 152 V / 14 A
IC revisionA

Description

This reference design uses the UCD3138064A as a digital controller to control inverting buck-boost with the capability of supporting two-phase peak current mode control. The soft-switching technology is used in this design to improve the power efficiency. The input voltage range is -62 V to -36 V. The output voltage range is adjustable from 28 V to 52 V. The default output voltage is 48-V with a maximum current of 14 A.

Features

  • High efficiency above 97.1%
  • Interleaved two-phase peak current mode (PCM) control
  • Three phases with voltage mode (VM) control
  • Zero voltage switching of MOSFETs
  • Pre-biased start up
  • Current balancing between phases

Typical applications

  • Non-isolated battery backup unit
  • Transformer-based DC/DC converter (100W~400W)

More information

Products

Order Code Data­sheet Downloads Status Product series Samples
7443641000–
 – Active i| Production is active. Expected lifetime: >10 years.WE-HCF SMT High Current Inductor
7443642200–
 – Active i| Production is active. Expected lifetime: >10 years.WE-HCF SMT High Current Inductor
744308040–
 – Active i| Production is active. Expected lifetime: >10 years.WE-HCM SMT High Current Flat Wire Inductor
744301033–
 – Active i| Production is active. Expected lifetime: >10 years.WE-HCM SMT High Current Flat Wire Inductor
Order Code Data­sheet
7443641000–
7443642200–
744308040–
744301033–
Samples
Order Code Data­sheet Downloads Status Product series Samples
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