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Product details

Parameters

Number of series cells 1 Charge current (Max) (A) 6 Operating Vin (Max) (V) 14 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (Min) (V) 3.5 Battery charge voltage (Max) (V) 4.775 Absolute Vin (safety rating) (Max) ((V)) 20 Control topology Switch-Mode Buck Control interface I2C Features IC thermal regulation, IINDPM (Input current limit), Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Operating Vin (Min) (V) 3.9 Rating Catalog open-in-new Find other Battery charger ICs

Package | Pins | Size

DSBGA (YFF) 36 4 mm² 2.454 x 2.482 open-in-new Find other Battery charger ICs

Features

  • Parallel charger operation provides fast charging in dual charger configuration
  • High efficiency 750-kHz switch mode three-level buck parallel charger
    • Reduced ripple to support low profile inductor
    • 95.4% Charge efficiency at 1.5 A from 5-V input
    • 93.3% Charge efficiency at 3 A from 9-V input
    • Superior efficiency compared to traditional buck converter in compact form factor
  • Single Input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range with 20-V absolute maximum input voltage rating
    • Input current limit (500 mA to 3.6 A with 100-mA resolution) to support USB2.0 and USB 3.0 standard and high voltage adaptors
    • Maximum power tracking by input voltage limit (VINDPM) up to 14 V
  • Flexible I2C mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
    • Lossless charge current sensing without sense resistor
  • < 10-µA Low battery leakage current during stand-by mode
  • High accuracy
    • ±0.4% Charge voltage regulation
    • ±10% Charge current regulation
    • ±7.5% Input current regulation
    • Remote differential battery sensing
  • Safety
    • Thermal regulation and thermal shutdown
    • Input UVLO and overvoltage protection
    • Battery OVP
    • Input dynamic power management (DPM)
    • Charging safety timer
    • Flying capacitor short circuit protection
    • Output voltage short circuit protection
  • Available in 36-ball WCSP package

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Description

The BQ25910 is an integrated three-level switch-mode parallel battery charge management device for single cell Li-ion and Li-polymer batteries. Utilization of the three-level converter maintains highest switch-mode operation efficiency while reducing solution footprint and increasing power density. The device supports fast charging with high input voltage for a wide range of portable devices. The solution integrates reverse-blocking FET (QBLK), and four switching FETs (QHSA, QHSB, QLSB, QLSA). The I2C serial interface with charging and system settings makes the device a truly flexible solution.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet BQ25910 I2C Controlled 6-A Three-Level Switch Mode, Single-Cell Parallel Battery Charger for Fast Charging datasheet (Rev. B) Jul. 29, 2019
Technical articles When to use rechargeable batteries in small battery applications Oct. 01, 2019
Technical articles New technology charges your smartphone in just 30 minutes Mar. 13, 2018
User guides bq25910EVM-854 Evaluation Module User's Guide (Rev. A) Mar. 01, 2018
Technical articles How to increase charging current while shrinking overall solution size for portable electronics Feb. 28, 2018
Technical articles TI empowers design engineers at APEC Feb. 16, 2018
Application notes Faster, cooler charging with dual chargers Oct. 30, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description
The bq25910 is an integrated three-level switch-mode slave battery charge management device for single cell Li-ion and Li-polymer batteries. Utilization of the three-level converter reduces solution footprint and volume while maintaining highest switch-mode operation efficiency.
Features
  • High efficiency 750Hz synchronous switch mode three-level buck slave charger
  • Enables small package 470nH or 330nH inductor
  • Supports 3.9V to 14V input voltage range with 20V absolute maximum input voltage rating

Design tools & simulation

GERBER FILES Download
SLVC715.ZIP (188 KB)

CAD/CAE symbols

Package Pins Download
DSBGA (YFF) 36 View options

Ordering & quality

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