USB Li-Ion Battery Charger and Power-Path Management Reference Design
TIDA-00044
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Description & Features

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Description

This reference solution is designed to deliver up to 1000mA of continuous current to the battery output when programmed with a resistor on the ISET pin and is programmed at the factory for ~540mA. The USB current limit modes are selected by the ISET2 pin and limits current to a maximum of 500mA (logic high) or 100mA (float or high impedance). A low on the ISET2 pin programs the charge current using the ISET resistor.

Features
  • # Series Cells: 1S
  • Max Input Volts: 12V
  • Max Charge Current: 1A
  • Topology: Linear


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Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ24072  Standalone 1-cell 1.5-A linear charger, Power Path, 4.2-V VBAT and VOUT=VBAT + 225mV  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules
BQ27421-G1  System-side(tm) fuel gauge with integrated Sense Resistor | battery gas gauge  Battery management ICs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
BQ24072 Download Download
BQ27421-G1 Download -

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 359 26 Aug 2013
Design files (3)
Title Type Size (KB) Date
PDF 132 26 Aug 2013
PDF 42 26 Aug 2013
PDF 113 26 Aug 2013

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