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Product details

Parameters

Number of series cells 1 Charge current (Max) (A) 8 Operating Vin (Max) (V) 12 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (Min) (V) 3.5 Battery charge voltage (Max) (V) 4.77 Absolute Vin (safety rating) (Max) ((V)) 40 Control topology Flash Charger Control interface I2C Features Input OVP, Integrated ADC Operating Vin (Min) (V) 3.5 Rating Catalog open-in-new Find other Battery charger ICs

Package | Pins | Size

DSBGA (YBG) 36 7 mm² 2.552 x 2.552 open-in-new Find other Battery charger ICs

Features

  • 98.1% peak efficiency switched cap parallel charger supporting 8-A fast charge
  • Patent pending dual phase switched cap architecture optimized for highest efficiency
    • Input voltage is 2x battery voltage
    • Output current is 2x of input current
    • Reduces power loss across input cable
  • Integrated 5-A Bypass Mode fast charge
    • 21-mΩ Rdson charging path resistance to support 5-A input and 5-A output charging current
  • Dual-input power mux controller for source selection during fast charging and USB On-The-Go (OTG)/ reverse TX Mode
  • Support wide range of input voltage

    • Up to 12.75-V operational input voltage

    • Maximum 40-V input voltage with optional external ACFET and 20-V without external ACFET

  • Parallel charging with synchronized dual BQ25960 operations for up to 13-A charging current

  • Integrated programmable protection features for safe operation
    • Input overvoltage protection (BUSOVP) and battery overvoltage protection (BATOVP)
    • Input overcurrent protection (BUSOCP) and battery overcurrent protection (BATOCP)
    • Output overvoltage protection (VOUTOVP)
    • Input undercurrent protection (BUSUCP) and input reverse-current protection (BUSRCP) to detect adapter unplug and prevent boost-back
    • Battery and connector temperature monitoring (TSBAT_FLT and TSBUS_FLT)
    • Junction overtemperature protection (TDIE_FLT)
  • Programmable settings for system optimization
    • Interrupts and interrupt masks
    • ADC readings and configuration
    • Alarm functions for host control

  • Integrated 16-bit ADC for voltage, current, and temperature monitoring

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Description

The BQ25960 is a 98.1% peak efficiency, 8-A battery charging solution using switch capacitor architecture for 1-cell Li-ion battery. The switched cap architecture allows the cable current to be half the charging current, reducing the cable power loss, and limiting temperature rise. The dual-phase architecture increases charging efficiency and reduces the input and output cap requirements. When used with a main charger such as BQ2561x or BQ2589x, the system enables full charging cycle from trickle charge to termination with low power loss at Constant Current (CC) and Constant Voltage (CV) Mode.

The BQ25960 supports 5-A Bypass Mode charge (previously called battery switch charge) through internal MOSFETs. The Rdson in Bypass Mode charging path is 21 mΩ for high-current operation. The integrated Bypass Mode allows backward compatibility of 5-V fast charging adapter to charge 1-cell battery.

The device supports dual input configuration through integrated mux control and driver for external N-FETs. It also allows single input with no external N-FET or single N-FET.

The device integrates all the necessary protection features to support safe charging, including input overvoltage and overcurrent protection, output overvoltage and overcurrent protection, input undercurrent and reverse-current protection, temperature sensing for the battery and cable, and junction overtemperature protection in both Switched Cap and Bypass Mode.

The device includes a 16-bit analog-to-digital converter (ADC) to provide VAC voltage, bus voltage, bus current, output voltage, battery voltage, battery current, input connector temperature, battery temperature, junction temperature, and other calculated measurements needed to manage the charging of the battery from the adapter, or wireless input, or power bank.

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Technical documentation

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Type Title Date
* Datasheet BQ25960 I2C Controlled, Single Cell 8-A Switched Cap Parallel Battery Charger datasheet Feb. 17, 2021
User guide BQ25960EVM (BMS041) Evaluation Module User's Guide Apr. 13, 2021
Technical article When to use rechargeable batteries in small battery applications Oct. 01, 2019
Technical article Should I use a linear charger or a switching charger? Oct. 31, 2015
Technical article Summertime and the livin' is easy Jun. 20, 2014

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
149
Description
The BQ25960EVM evaluation module (EVM) is a complete charger module for evaluating the highly-integrated BQ25960 switched cap battery charger in WCSP package for 1-cell Li-ion and Li-polymer batteries in a wide range of smartphones and tablets. The BQ25960EVM presents a complete fast charging (...)
Features
  • 98.1% peak efficiency switched cap charger supporting 1-cell battery and 8-A fast charge
  • Parallel charging with synchronized dual BQ25960 operation
  • Integrated 5-A bypass mode fast charge
  • Dual-input power mux controller for input source selection
  • Integrated programmable protection features for safe (...)

Software development

DRIVER OR LIBRARY Download
Linux driver for BQ25980
BQ25980SW-LINUX The Linux driver supports the BQ25980 I2C Controlled 2-cell, 8-A switched cap parallel battery charger. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.

Linux mainline status

Available in Linux mainline: Yes
Available through git.ti.com: No

(...)

CAD/CAE symbols

Package Pins Download
DSBGA (YBG) 36 View options

Ordering & quality

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