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BQ24610RGET

TIBQ24610RGET

Texas Instruments
Charger IC Lithium Ion/Polymer 24-VQFN (4x4)
Active2,789 in stock

Overview

The BQ24610RGET is a highly integrated stand-alone switch-mode battery charge controller designed for Lithium-Ion and Lithium-Polymer chemistries. It supports 1 to 6 series cells and features a synchronous PWM controller with a fixed 600 kHz switching frequency to achieve high efficiency. The device includes dynamic power management and automatic system power selection, allowing the system to be powered from either the adapter or the battery.

Why Choose This Part

The BQ24610 supports a wide input voltage range up to 28V and offers exceptional 0.5 percent charge voltage accuracy. Its integrated gate drivers for external N-channel MOSFETs enable high efficiency at charging currents up to 10A, while the dynamic power management feature prevents the system from crashing by reducing charge current when the adapter is overloaded.

Applications

Industrial Handheld Terminals
Provides high-current charging (up to 10A) for multi-cell rugged mobile computers and barcode scanners.
Portable Medical Equipment
Manages battery packs for portable diagnostic tools and monitors with high voltage accuracy and built-in safety timers.
Power Tools
Delivers efficient charging for high-capacity Li-ion packs requiring synchronous buck conversion and robust fault protection.

Key Specifications

Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Number of Cells 1 ~ 6
Fault Protection Over Current, Over Temperature, Over Voltage, Short Circuit
Battery Chemistry Lithium Ion/Polymer
Current - Charging Constant - Programmable
Battery Pack Voltage 2.1V
Charge Current - Max 10A
Operating Temperature 0degC ~ 125degC (TJ)
Programmable Features Current
Voltage - Supply (Max) 28V
Supplier Device Package 24-VQFN (4x4)

Getting Started

Designers can evaluate the controller using the BQ24610EVM evaluation module. Implementation requires external N-channel MOSFETs, a power inductor, and sense resistors to set the charge and adapter current limits. Refer to the datasheet for thermal layout guidelines for the 24-pin VQFN package to ensure proper heat dissipation at high currents.

Also Consider

LT1513-2IR Analog Devices - A SEPIC topology charger useful if the input voltage can be higher or lower than the battery voltage.