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BQ24166 The Texas Instruments BQ24166 is a single-cell, switchmode buck battery charger designed for Li-Ion/Li-Polymer chemistries. It offers a maximum charge current of 2.5A and operates within a wide input voltage range.
Mfr Part #:

BQ24166

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ24166 is a single-cell, switchmode buck battery charger designed for Li-Ion/Li-Polymer chemistries. It offers a maximum charge current of 2.5A and operates within a wide input voltage range.
✓ Total Stock: 15,067 pcs
$ Price Range: $0.99

BQ24166 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
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15,067 pcs
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BQ24166 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Charge Current
Control Interface
Operating Temperature
SVHC Present
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BQ24166 Description

Short technical summary and product information.

The BQ24166 is a switch-mode buck battery charger IC from Texas Instruments, designed for single-cell Li-Ion and Li-Polymer batteries. It delivers a maximum charge current of 2.5A with a fixed battery charge voltage of 4.2V. The input voltage range is 4.2V to 10V, with an absolute maximum rating of 20V, allowing flexible power source compatibility.

 

The charger uses a standalone (RC-settable) control interface, enabling simple charge current configuration via external resistor and capacitor networks. The control topology is switch-mode buck, providing high efficiency during charging. The operating temperature range spans -40°C to 85°C, suitable for both consumer and industrial environments.

 

The BQ24166 is available in two compact package options: VQFN-24 (4mm x 4mm) and DSBGA-49 (2.8mm x 2.8mm). These small footprints make it ideal for space-constrained portable applications such as smartphones, tablets, and wearable devices.

BQ24166 Quick Information

Product Type: Battery Charger
Canonical Name: BQ24166 Single-Cell Switchmode Li-Ion Battery Charger
Subcategory: Switchmode Buck

BQ24166 Compliance

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

BQ24166 Estimated Pricing

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1+ $0.99 $0.99

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

BQ24166 Features

  • 2.5A maximum charge current.
  • Switch-mode buck control topology.
  • Standalone RC-settable control interface.
  • Operates from 4.2V to 10V input.
  • Single-cell Li-Ion/Polymer support.

BQ24166 Applications

  • Charging portable electronics and wearables.
  • Ideal for single-cell Li-Ion battery management.
  • Used in consumer and industrial applications.
  • Space-constrained product designs.

BQ24166 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum charge current of the BQ24166?

2.5A

What input voltage range does the BQ24166 support?

4.2V to 10V (absolute maximum 20V)

What battery chemistry does the BQ24166 support?

Li-Ion/Li-Polymer

What is the operating temperature range of the BQ24166?

-40°C to 85°C

What package options are available for the BQ24166?

VQFN-24 (4mm x 4mm) and DSBGA-49 (2.8mm x 2.8mm)

How is the charging current controlled on the BQ24166?

Standalone (RC-Settable) control interface

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