BQ24251EVM-150 Single Input I2C/Standalone Switch-Mode Li-Ion Battery Charger Evaluation Module


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This EVM enables test and evaluation of the Texas Instruments' bq24251 device. The bq2425x series are highly integrated single cell Li-Ion battery chargers targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that operates from either a USB port or AC wall adapter for a versatile solution. BC1.2 compliant D+/D detection allows for recognition of CDP, DCP, SDP, and non-standard USB adapters. The use of an accessory dead battery provision (DBP) pin allows for the system to sync a dead battery state in order to enable/disable the BC1.2 detection in the case of an external USB-PHI. The user's guide includes EVM specifications, the schematic diagram, bill of materials, and board layout.

  • High-efficiency switch-mode charger
  • Synchronous fixed-frequency PWM controller operating at 3MHz for small inductor support
  • USB charging compliant
  • Integrated 50mA LDO
  • Integrated power FETs for up to 2.0A charging rate
  • Complete system level protection
  • BC1.2 D+/D- detection with dead battery provision (DBP) pin to sync with external USB-PHI
  • Open drain status outputs
  • Power path management for the bq24250/1
Battery charger ICs
BQ24251 2A Single Input I2C/Standalone Switch-Mode Li-Ion Battery Charger

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Evaluation board

BQ24251EVM-150 – BQ24251EVM-150 Single Input I2C/Standalone Switch-Mode Li-Ion Battery Charger Evaluation Module

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Calculation tool

Thermal TS bq2425x Calculator Tool – SLUC436.ZIP (22KB)

Support software

bq24250EVM Software (Rev. A) – SLUC435A.ZIP (528KB)

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
Certificate BQ24251EVM-150 EU Declaration of Conformity (DoC) Jan. 02, 2019
User guide bq24257EVM-150, Single-Cell Li-Ion Switch-Mode Charger (Rev. A) Apr. 03, 2013

Related design resources

Software development

TI-CHARGER-GUI GUI software for use with USB2ANY and battery charging evaluation modules

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