Highly Efficient, Versatile Bi-Directional Power Converter for Energy Storage and DC Home Solutions


Design files


TIDA-00476 is comprised of a single DC-DC power stage, which can work as a synchronous buck converter or a synchronous boost converter, enabling bidirectional power flow between DC power source and energy storage system. Operating in synchronous buck mode, the system works as a MPPT controlled DC-DC converter which can charge a battery from a solar panel or DC Source. The same power stage can be operated as a synchronous boost to drive a DC load with configurable constant current and constant voltage limits (CC/CV), from an energy storage system such as lead acid battery. The power stage is digitally controlled by a MSP430 microcontroller, which implements the closed loop for controlling the power stage with required algorithms for MPPT, battery charge profiling and DC-Power conversion for load.

  • Single bidirectional power stage working as both synchronous buck battery charger and synchronous boost CC/CV converter.
  • High efficiency of 95% as charger to store energy and 90% as CC/CV converter to power loads.
  • Perturb & Observe (P&O) based MPPT tracking algorithm.
  • Robust Power stage with built in protection for Overcurrent, Overvoltage and Reverse Polarity Connection.
  • Fully tested and validated as a MPPT based lead acid battery charger and CC/CV converter with LED & resistive loads.
  • Simple use PCB form factor of 85 x 50 mm. provides a ready platform for single stage bidirectional power conversion needs of energy storage, DC Home and low power UPS systems.
Output voltage options TIDA-00476.1 TIDA-00476.2
Vin (Min) (V) 14 10.5
Vin (Max) (V) 44 14.4
Vout (Nom) (V) 14.4 45
Iout (Max) (A) 5 .7
Output Power (W) 72 31.5
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Boost- Synchronous Buck- Synchronous

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUAN2.PDF (1762 K)

Reference design overview and verified performance test data

TIDRH19.PDF (737 K)

Detailed schematic diagram for design layout and components

TIDRH20.PDF (237 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRH21.PDF (331 K)

Detailed overview of design layout for component placement

TIDRH23.ZIP (2346 K)

Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDRH22.PDF (3190 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

N-channel MOSFETs

CSD88539ND60-V, N channel NexFET™ power MOSFET, dual SO-8, 28 mOhm

Data sheet: PDF
Flyback controllers

UCC28880High voltage switcher for Non-isolated AC/DC Conversion

Data sheet: PDF | HTML
General-purpose op amps

OPA170Single, 36-V, 1.2-MHz, low-power operational amplifier

Data sheet: PDF | HTML
Half-bridge drivers

LM5109A1-A, 100-V half bridge gate driver with 8-V UVLO

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV704150-mA 24-V ultra-low-IQ low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430F513225 MHz MCU with 8KB Flash, 1KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer

Data sheet: PDF | HTML

Start development



TIDA-00476 Firmware — TIDCBZ5.ZIP (280 K)

Technical documentation

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Type Title Date
* Design guide Highly-Efficient Versatile Bidirectional Power Converter Design Guide Sep. 18, 2015
More literature TIDA-00476 Firmware Mar. 30, 2016

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