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Texas Instruments bq25173-Q1EVM Linear Charger Evaluation Module

Texas Instruments bq25173-Q1EVM Linear Charger Evaluation Module (EVM) is designed to evaluate and test the various operating modes of the bq25173-Q1 devices. The bq25173-Q1EVM contains the bq25173-Q1 IC, LDO TPS7B8133, and support circuits needed to operate the evaluation board. Only an external power supply is required for 2.5V and 5V settings, corresponding to 1S and 2S. The charge voltage VREG can be set to four values: 2.5V and 5V with J7, and 7.5V and 10V with R18 and R17. The charge current of Texas Instruments bq25173-Q1EVM is set by R3 (ISET) value from 10mA to 800mA. JP3 selects a fixed value of 400mA.

Features

  • Complete solution for evaluation of the small form factor linear charger capable of providing up to 800mA to a 1S to 4S super-capacitor
  • Two supercapacitors are provided on the board, 2S configuration, 10F 2.5V each for 5F total at 5V
  • Adjustments for charge current over a wide range of 10mA to 800mA, also a fixed option for 400mA
  • Voltage can be set for 1S and 2S
    • Set 2.5V and 5V with a jumper
    • Set 3S and 4S voltage using resistors and shorting pads

Board Layout

Mechanical Drawing - Texas Instruments bq25173-Q1EVM Linear Charger Evaluation Module

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Texas Instruments bq25173-Q1EVM Linear Charger Evaluation Module