BQ24123RHLR The Texas Instruments BQ24123RHLR is a standalone synchronous buck battery charger designed for Li-Ion and Li-Polymer battery packs. It supports 1 to 3 cells with a maximum charge current of 2A.
Mfr Part #:

BQ24123RHLR

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ24123RHLR is a standalone synchronous buck battery charger designed for Li-Ion and Li-Polymer battery packs. It supports 1 to 3 cells with a maximum charge current of 2A.
✓ Total Stock: 42,221 pcs
$ Price Range: $2.20

BQ24123RHLR Available from 6 distributors

✓ Authorised
✓ Non-Authorised

BQ24123RHLR Specifications Quick View

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

BQ24123RHLR Description

Short technical summary and product information.

The BQ24123RHLR from Texas Instruments is a highly integrated, switched-mode charge management IC for Li-ion and Li-polymer battery packs. This device is suitable for a wide range of portable applications, offering enhanced EMI performance.

 

Key electrical specifications include an input voltage range of 4.35 V to 16 V, with an absolute maximum rating of 20 V. It supports battery charge voltages from 2.1 V to 15.5 V and can deliver a maximum charge current of 2A. The charger operates as a synchronous fixed-frequency PWM controller at 1.1 MHz. It is designed for 1, 2, or 3-cell battery configurations.

 

Features include BAT temperature thermistor monitoring for hot/cold profiles, input overvoltage protection (OVP), and accurate high-side battery current sensing. The device also incorporates automatic sleep mode for low power consumption, reverse leakage protection, and thermal shutdown. Status outputs are provided for charge-in-progress, charge completion, and fault conditions, suitable for LED indication or host processor interface.

 

The BQ24123RHLR is available in a 20-pin VQFN package measuring 3.5 mm x 4.5 mm. The mounting type is surface mount, making it suitable for compact designs.

BQ24123RHLR Quick Information

Product Type: Battery Charger
Canonical Name: BQ24123RHLR Standalone 1 cell 2A synchronous Buck battery charger
Subcategory: Charge Management ICs

BQ24123RHLR Compliance

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

BQ24123RHLR Estimated Pricing

Qty Low High
1+ $2.20 $2.20

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

BQ24123RHLR Features

  • Standalone 1-3 cell 2A synchronous buck charger.
  • Enhanced EMI performance for cleaner operation.
  • Wide input voltage range up to 16V.
  • Supports Li-Ion and Li-Polymer battery chemistries.
  • Integrated power FETs for up to 2A charge rate.

BQ24123RHLR Applications

  • Ideal for portable electronic devices.
  • Suitable for battery-powered equipment.
  • Used in systems requiring efficient charging.
  • Applications needing enhanced EMI performance.

BQ24123RHLR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the BQ24123RHLR?

4.35 V to 16 V.

What is the operating temperature range?

-40°C to 85°C.

What package does the BQ24123RHLR come in?

20-VFQFN Exposed Pad (20-VQFN 3.5x4.5).

How many series cells does it support?

1, 2, or 3 Li-Ion/Li-Polymer cells.

What is the maximum charge current?

2 A.

What battery chemistries are supported?

Li-Ion and Li-Polymer.

What control topology is used?

Switch-Mode Buck.

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