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BQ24721CRHBR The Texas Instruments BQ24721CRHBR is a multi-chemistry, multi-cell synchronous switch-mode battery charger and system power selector. It supports 3-4 cell Li-Ion batteries and features an SMBus interface.
Mfr Part #:

BQ24721CRHBR

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ24721CRHBR is a multi-chemistry, multi-cell synchronous switch-mode battery charger and system power selector. It supports 3-4 cell Li-Ion batteries and features an SMBus interface.
✓ Total Stock: 110,486 pcs
$ Price Range: $7.39

BQ24721CRHBR Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
63,556 pcs
On Request
63556 pcs On Request 1 On Request On Request 1010+ On Request On Request
Romaks Technologies ✓
Non-Authorised Inventory information
30,133 pcs
On Request
30133 pcs On Request 1 On Request On Request On Request On Request On Request
Unit Electronics Co.,Limited ✓
Non-Authorised Inventory information
15,712 pcs
On Request
15712 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
1,085 pcs
On Request
1085 pcs On Request 1 On Request On Request 0810+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BQ24721CRHBR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Battery Pack Voltage
Fault Protection
Input Voltage
Interface
Mounting Type
Number of Cells
Operating Temperature
Operating Voltage
Programmable Features
Supplier Device Package
Voltage
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BQ24721CRHBR Description

Short technical summary and product information.

The BQ24721CRHBR from Texas Instruments is an advanced, high-efficiency synchronous switch-mode charger designed for portable applications like notebook computers, DVD players, and tablets. This device integrates a sophisticated analog front-end with an SMBus interface for control and status communication.

 

Key electrical specifications include a 24V input voltage range, support for 3-4 cell Li-Ion batteries with a maximum pack voltage of 19.2V, and user-selectable switching frequencies of 300kHz or 500kHz. It offers precise charge voltage regulation accuracy of 0.4% and charge current regulation accuracy of 3%. The device also features dynamic power management (DPM) to prevent AC adapter overload.

 

Packaged in a 32-VQFN (5x5mm) with an exposed pad, the BQ24721CRHBR is designed for surface mounting. Its operating temperature range is -40°C to 85°C. The charger includes integrated features such as soft start, overcurrent protection, and a 5V LDO, enhancing system protection and reliability.

BQ24721CRHBR Quick Information

Product Type: Battery Charger IC
Canonical Name: BQ24721CRHBR
Subcategory: Battery Management ICs

BQ24721CRHBR Compliance

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

BQ24721CRHBR Estimated Pricing

Qty Low High
1+ $7.39 $7.39

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

BQ24721CRHBR Features

  • High efficiency synchronous buck converter.
  • Supports 3-4 cell Li-Ion batteries.
  • Programmable charge voltage and current.
  • SMBus interface for control and status.
  • 32-VQFN package for surface mounting.

BQ24721CRHBR Applications

  • Ideal for portable notebook computers.
  • Suitable for portable DVD players.
  • Used in webpads and PC tablets.
  • Enables system power selection.
  • Provides battery charge management.

BQ24721CRHBR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the BQ24721CRHBR?

The input voltage range is 0V to 24V.

What battery chemistries does the BQ24721CRHBR support?

It supports multi-chemistry batteries, specifically Li-Ion and Li-Polymer.

How many cells can the BQ24721CRHBR charge?

It supports 2, 3, or 4 series cells.

What is the operating temperature range of the BQ24721CRHBR?

The operating temperature range is -40°C to 85°C.

What package type is the BQ24721CRHBR available in?

It is available in a 32-VQFN (5x5mm) package with an exposed pad.

What is the charge voltage regulation accuracy?

The charge voltage regulation accuracy is 0.4%.

What is the charge current regulation accuracy?

The charge current regulation accuracy is 3%.

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