TIDA-00704 Reference Design

Texas Instruments

330W: >93% Efficiency: Cost Optimized: 20-32V Storage Battery Bank Charger Reference Design

Description

The TIDA-00704 is a compact: universal input: 20-32VDC - 320-W output: AC/DC storage battery bank charger for 8 cell LiFePO4 batteries. The circuit consists of a front end continuous conduction mode (CCM) power factor correction (PFC) circuit: followed by an LLC based second stage. The design uses the UCC29950 combo controller which controls both the PFC stage and LLC stage: to achieve a compact and robust control structure. Synchronous rectification based on UCC24610 and low RDSon FETs from Texas instruments help in achieving higher efficiencies. The board comes with an option of a customizable battery charge profiling: by means of adding a small daughter card based on MSP430 controller.

Features
  • Peak overall efficiency of 93%  enables energy savingUses a single UCC29950 combo controller for controlling both PFC and LLC stages for reduced component countTrue input power limit to provide greater degree of protection under varying input voltage conditionsLow stand-by power (Wide input voltage range from 85 VAC to 264 VAC helps in meeting global market needs
Applications
  • Mobile wall charger design
  • Merchant battery charger
  • Power transfer units
  • Appliances: battery charger
  • Merchant network & server PSU
  • Industrial AC-DC
  • Merchant DIN rail power supply
  • Lab power supply DC
  • source AC & electronic load
  • Single phase online UPS
  • Medical PSU
  • Drone accessories
  • Circuit breaker
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