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BQ24125RHLT The Texas Instruments BQ24125RHLT is a standalone synchronous buck battery charger IC designed for 1 to 3 cell Li-Ion and Li-Polymer battery packs. It offers a maximum charge current of 2A.
Mfr Part #:

BQ24125RHLT

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ24125RHLT is a standalone synchronous buck battery charger IC designed for 1 to 3 cell Li-Ion and Li-Polymer battery packs. It offers a maximum charge current of 2A.
✓ Total Stock: 10,694 pcs
$ Price Range: $3.90

BQ24125RHLT Available from 4 distributors

✓ Authorised
✓ Non-Authorised
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BQ24125RHLT 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
SVHC Present
Supplier Device Package
Supplier Package
Voltage
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BQ24125RHLT Description

Short technical summary and product information.

The BQ24125RHLT from Texas Instruments is a highly integrated, single-chip switched-mode charge management IC for Li-ion and Li-polymer battery packs. It is suitable for portable applications requiring efficient charging.

 

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

 

The BQ24125RHLT features enhanced EMI performance and integrated power FETs. It includes battery temperature monitoring via a thermistor for hot/cold profiles, input overvoltage protection, and accurate high-side battery current sensing. Status outputs are provided for indicating charge progress, completion, and faults.

 

Packaged in a 20-VQFN (3.5x4.5 mm) with surface mount type, this IC operates within a temperature range of -40°C to 125°C. It offers features like automatic sleep mode for low power consumption, reverse leakage protection, and thermal shutdown.

BQ24125RHLT Quick Information

Product Type: Battery Charger IC
Series: bqSWITCHER
Canonical Name: BQ24125 Standalone 1-3 Cell 2A Synchronous Buck Battery Charger
Subcategory: Power Management ICs

BQ24125RHLT Compliance

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

BQ24125RHLT Estimated Pricing

Qty Low High
1+ $3.90 $3.90

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

BQ24125RHLT Features

  • Standalone 1-3 cell synchronous buck charger.
  • Maximum charge current of 2A.
  • Input voltage up to 16V.
  • Wide operating temperature range.
  • Integrated power FETs for efficiency.

BQ24125RHLT Applications

  • Ideal for portable electronic devices.
  • Suitable for Li-Ion battery management.
  • Used in 1, 2, or 3-cell battery packs.
  • Applications requiring enhanced EMI performance.

BQ24125RHLT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the BQ24125RHLT?

4.35V to 16V.

What package does the BQ24125RHLT come in?

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

What is the operating temperature range?

-40°C to 125°C.

How many battery cells can the BQ24125RHLT charge?

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

What is the maximum charge current?

2A.

What control topology does the charger use?

Switch-Mode Buck.

What fault protection is included?

Over-temperature protection.

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