Product details


Number of series cells 1 Charge current (Max) (A) 0.25 Operating Vin (Max) (V) 6.45 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.2 Battery charge voltage (Max) (V) 4.2 Absolute Vin (safety rating) (Max) ((V)) 30 Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Operating Vin (Min) (V) 4.45 Rating Catalog open-in-new Find other Battery charger ICs

Package | Pins | Size

DSBGA (YFP) 6 1 mm² .92 x 1.618 open-in-new Find other Battery charger ICs


  • Charging
    • 1% Charge Voltage Accuracy
    • 10% Charge Current Accuracy
    • Supports Applications for Very Low
      Charge Currents - 10 mA to 250 mA
    • Supports minimum 1-mA Charge
      Termination Current
    • Ultra Low Battery Output Leakage
      Current - Maximum 75 nA
    • Adjustable Termination and Precharge
    • High voltage Chemistry Support: 4.35 V
      with bq25100H/01H, 4.30 V with bq25100A
  • Protection
    • 30-V Input Rating; with 6.5-V Input
      Overvoltage Protection
    • Input Voltage Dynamic Power Management
    • 125°C Thermal Regulation; 150°C
      Thermal Shutdown Protection
    • OUT Short-Circuit Protection and ISET
      Short Detection
    • Operation over JEITA Range via Battery
      NTC – 1/2 Fast-Charge-Current at
      Cold, 4.06 V (bq25100/01) or 4.2 V
      (bq25100H/01H) at Hot
    • Fixed 10 Hour Safety Timer
  • System
    • Automatic Termination and Timer
      Disable Mode (TTDM) for Absent Battery
    • Available in Small 1.60 mm × 0.90 mm
      DSBGA Package
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The bq2510x series of devices are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq2510x. The fast charge current value is also programmable via an external resistor.

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NEW BQ25175 PREVIEW Standalone 1-cell 800-mA linear battery charger in a WCSP package Supports 800-mA charging current in a smaller package

Technical documentation

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Type Title Date
* Data sheet bq2510x 250-mA Single Cell Li-Ion Battery Chargers, 1-mA Termination, 75-nA Battery Leakage datasheet (Rev. C) Nov. 18, 2014
Technical article When to use rechargeable batteries in small battery applications Oct. 01, 2019
Technical article Choosing the right battery charger for your portable medical device design Jan. 22, 2018
Technical article The future of wearable biosensors and linear chargers Dec. 04, 2017
Technical article How to choose the right linear charger for your application Nov. 17, 2017
Application note Battery-charging considerations for low-power applications Apr. 26, 2016
More literature Battery Management Solutions for Wearable and Fitness Devices (Rev. C) Aug. 18, 2014
User guide User's Guide for WCSP Packaged bq25100 Battery Charger EVM Aug. 06, 2014

Design & development

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

Hardware development

document-generic User guide

The bq25100 evaluation module (EVM) is a complete charger module for evaluating the WCSP packaged 250mA battery charge solution for single-cell, Li-Ion battery-powered systems used in low power portable applications. It offers ultra-small package size and ultra-low battery leakage current which is (...)

  • Charges Li-Ion batteries
  • Programmable battery charge current via external resistors.
  • Support 30V input rating with 6.5V input over-voltage protection
  • Programmable battery termination current down to 1mA
  • Test points for key signals available for testing purposes.


Design tools & simulation

SLUC670.ZIP (350 KB)

Reference designs

50mA Wireless Charger with 19mm Coil BoosterPack Reference Design
TIDA-00881 The TIDA-00881 reference design is a booster pack that provides a wireless charger and an entire battery managment solution to power any low power TI Launchpad. This design is a  highly integrated power management solution that is well-suited for ultra-low power applications using an off the (...)
document-generic Schematic
50mA Wireless Charger Booster Pack Reference Design
TIDA-00668 The TIDA-00668 is a booster pack that provides a wireless charger and an entire battery managment solution to power any low power TI Launchpad. This design is a highly integrated power management solution that is well-suited for ultra-low power applications.

The primary method of storage is an (...)

document-generic Schematic
Qi (WPC) Compliant Wireless Charger for Low Power Wearable Applications
TIDA-00318 This reference design is suitable for low power wearable devices including a Qi-compliant wireless receiver (bq51003) and ultra-low current 1-cell Li-ion linear charger (bq25100). It features an ultra-small size (5 x 15 mm2), capable of low-charging currents down to 10 mA and up to 250 mA with (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
DSBGA (YFP) 6 View options

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