PMP22396 Reference Design

Texas Instruments

2460-W bidirectional boost converter reference design for automotive applications

Description

This reference design is a 2460-W bidirectional boost converter for automotive applications. The circuit is powered from the nominal 12-V battery to provide an output voltage of 48 V at 51.25 A. The design uses two dual-phase synchronous bidirectional controllers operating at a switching frequency of 200 kHz per phase. The 48-V output is designed to drive a motor. When the load current reverses and the output voltage reaches 54 V: hysteretic direction control allows the load current to be returned to the 12-V battery. Normal boost operation resumes when the output voltage returns to 48 V. Mounting holes are provided for a bottom-side heat sink underneath the MOSFETs.

Features
  • Bidirectional boost solution for higher powerExcellent phase current sharing for balanced thermal performanceJumper selectable phase controlMounting option for bottom-side heat sinkReverse battery protection
Applications
  • 48-V to 12-V DC/DC converter
Product Categories
  • Power management