BQ24740RHDRG4 The BQ24740RHDRG4 is a host-controlled multi-chemistry battery charger IC from Texas Instruments, supporting 2 to 4 series Li+ cells with up to 10A charge current.
Mfr Part #:

BQ24740RHDRG4

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The BQ24740RHDRG4 is a host-controlled multi-chemistry battery charger IC from Texas Instruments, supporting 2 to 4 series Li+ cells with up to 10A charge current.
Total Stock: 5,287 pcs
$ Price Range: $0.75

BQ24740RHDRG4 Available from 1 distributor

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5,287 pcs
5287 pcs On Request 1 On Request On Request 08+ On Request On Request

BQ24740RHDRG4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Battery Pack Voltage
Charge Current
Current
Fault Protection
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
Voltage

BQ24740RHDRG4 Description

Short technical summary and product information.

The BQ24740RHDRG4 is a high-efficiency, synchronous NMOS-NMOS buck converter battery charger from Texas Instruments, designed for multi-chemistry battery charging applications including Li+, NiCd, NiMH, and Lead Acid. It supports two, three, or four series Li+ cells and delivers up to 10A of charge current with high accuracy: ±0.5% charge voltage, ±3% charge current, and ±3% adapter current accuracy.

 

Key features include internal loop compensation, internal soft start, input overvoltage protection (OVP), and dynamic power management (DPM) with a status indicator. The device operates from a 5V to 24V AC/DC adapter input and offers ratiometric charge current and voltage programming via resistors or host control through a DAC or GPIOs.

 

The BQ24740RHDRG4 is available in a 28-pin, 5x5 mm thin QFN package (28-VQFN) and is rated for an operating temperature range of -40°C to 125°C. It is suitable for space-constrained applications such as notebook computers, portable data-capture terminals, portable printers, medical diagnostics equipment, battery bay chargers, and battery backup systems.

BQ24740RHDRG4 Quick Information

Product Type: Battery Charger IC
Canonical Name: Texas Instruments BQ24740RHDRG4 Host-Controlled Multi-Chemistry Battery Charger
Subcategory: Multi-Chemistry

BQ24740RHDRG4 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ24740RHDRG4 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ24740RHDRG4 Features

  • High-efficiency synchronous buck converter with >95% efficiency.
  • Supports two, three, or four series Li+ cells.
  • Up to 10A charge current with 10 mΩ sense resistor.
  • ±0.5% charge voltage and ±3% charge current accuracy.
  • Internal loop compensation and soft start.

BQ24740RHDRG4 Applications

  • Ideal for notebook and ultra-mobile computers.
  • Used in portable data-capture terminals and printers.
  • Suitable for medical diagnostics equipment.
  • Designed for battery bay and battery backup systems.

BQ24740RHDRG4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the package type for BQ24740RHDRG4?

28-VFQFN Exposed Pad (28-VQFN 5x5).

What is the operating temperature range?

-40°C to 125°C (junction).

How many cells does the BQ24740RHDRG4 support?

2 to 4 cells.

What is the maximum charge current?

10 A.

What battery chemistries are supported?

Multi-Chemistry.

What is the maximum supply voltage?

24 V.

What fault protection is included?

Over voltage protection.

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