Bi-Directional Battery Initialization System Power Board Reference Design


Design files


This reference design is a battery initialization reference design solution for automotive and battery applications. The module enables a high efficiency single stage conversion for charging and discharging the battery. This design features a 0.1% accurate current control loop using the high performance INA225 current sense amplifier. The design was achieved in a compact form factor (40mmX143mmX20mm). 

  • S.R. buck/boost topology for both charge/discharge
  • Extra high efficiency up to 94%
  • High current accuracy 0.1% and good linearity
  • Discrete solution is easy for re-design
  • Interface reserved for MCU control and measurement
Output voltage options PMP40182.1
Vin (Min) (V) 11
Vin (Max) (V) 14
Vout (Nom) (V) 4
Iout (Max) (A) 10
Output Power (W) 40
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Synchronous^Buck- Synchronous
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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.

TIDUD83.PDF (702 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRR26.PDF (305 K)

Detailed schematic diagram for design layout and components

TIDRR27.PDF (67 K)

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

TIDRR28.PDF (309 K)

Detailed overview of design layout for component placement

TIDRR30.ZIP (26 K)

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


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

TIDRR29.PDF (1584 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

TL59440V, 0.2A 300KHz PWM controller with UVLO

Data sheet: PDF | HTML
Analog current-sense amplifiers

INA22536V, bi-directional current sense amplifier w/ four pin-selectable gain settings

Data sheet: PDF | HTML
Analog switches & muxes

TS5A3159A1-Ω, 5-V, 2:1 (SPDT), 1-channel general-purpose analog switch with powered-off protection

Data sheet: PDF | HTML

TL331High Voltage Single Differential Comparator

Data sheet: PDF | HTML
Half-bridge drivers

LM51061.2-A, 1.8-A 100-V half bridge gate driver with 8V-UVLO and programmable dead-time

Data sheet: PDF | HTML

CSD16570Q5B25-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.82 mOhm

Data sheet: PDF | HTML

CSD18502Q5B40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.3 mOhm

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

OPA1800.1-μV/°C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifier

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

OPA21800.1 uV/°C DRIFT, Low Noise, Rail-to-Rail Output, 36V Zero-Drift Op Amp

Data sheet: PDF | HTML
Series voltage references

REF50202.048-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference

Data sheet: PDF | HTML
eFuses & hot swap controllers

LM50605.5-V to 65-V high side protection controller

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP40182 Test Results May 30, 2017

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