Cost-optimized battery charger reference design with 1.0-A current and ±1.5% voltage accuracy
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Key Document


This reference design demonstrates an on-board battery charger solution for a range of vacuum robots, which has 1.0-A charging current capability with 4.8-cm2 layout area, providing ±1.5% charging voltage accuracy and ±3% charging current accuracy. The design achieves a stable and smooth CC-CV charging profile and has been evaluated with a 4S2P li-ion battery pack.

  • Constant charging current: 1.0 A
  • ±1.5% Charging voltage accuracy
  • Synchronous buck topology integrated high-side FETs and low-side FETs
  • ±3% Charging current accuracy
  • Small occupied layout area: 4.8 cm2

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TLV9001  1-Channel, 1MHz, RRIO, 1.8V to 5.5V Operational Amplifier for Cost-Optimized Systems  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TPS54202H  4.5V to 28V Input, 2A Output, Synchronous Step-Down Voltage Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TVS3300  33-V flat-clamp surge protection device  Circuit protection ICs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TLV9001 Download -
Download -
Download Download
TPS54202H Download Download
TVS3300 Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 3054 25 Nov 2019
Design files (6)
Title Type Size (KB) Date
ZIP 981 25 Nov 2019
ZIP 3643 25 Nov 2019
PDF 395 25 Nov 2019
PDF 61 25 Nov 2019
PDF 282 25 Nov 2019
PDF 103 25 Nov 2019

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