PMP22557 Reference Design

Texas Instruments

High voltage buck converter reference design for E-motorcycle BMS applications

Description

This non-isolated buck converter provides a fixed output of 12V at 400mA for BMS applications. It operates over an input voltage range of 50Vdc – 150Vdc after a startup greater than 40V. Operating in discontinuous conduction mode (DCM): this converter utilizes the UCC28730 controller: which is referenced to the switch node. It offers high efficiency and low cost in a compact form factor.

Features
  • Unique floating controller ground reference allows operation at high input voltage (150-V)Achieves an efficiency of between 84% - 87% (50-V to 150V input: 400-mA output)Low component count and small sizeUtilizes a single standard inductor (no transformer required)
Applications
  • 100-V battery pack-passive balancing
Product Categories
  • Power management