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BQ24040DSQT The Texas Instruments BQ24040DSQT is a standalone, 1-cell, 1A linear battery charger IC designed for Li-Ion and Li-Polymer batteries. It operates within a 0°C to 125°C temperature range and comes in a compact 10-WSON package.
Mfr Part #:

BQ24040DSQT

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ24040DSQT is a standalone, 1-cell, 1A linear battery charger IC designed for Li-Ion and Li-Polymer batteries. It operates within a 0°C to 125°C temperature range and comes in a compact 10-WSON package.
✓ Total Stock: 163,387 pcs
$ Price Range: $0.55

BQ24040DSQT Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Unit Electronics Co.,Limited ✓
Non-Authorised Inventory information
162,564 pcs
On Request
162564 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
823 pcs
On Request
823 pcs On Request 1 On Request On Request 14+PB 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.

BQ24040DSQT 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
Mounting Type
Number of Cells
Operating Temperature
Programmable Features
Supplier Device Package
Supplier Package
Voltage
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BQ24040DSQT Description

Short technical summary and product information.

The BQ24040DSQT from Texas Instruments is a linear battery charger IC supporting single-cell Lithium Ion and Polymer batteries. It is designed for standalone operation and offers a maximum charge current of 1A and a charge voltage of 4.2V with 1% accuracy. The device features a wide input voltage range of 3.5V to 6.5V, with an absolute maximum rating of 30V, and includes input overvoltage protection at 6.6V or 7.1V.

 

Key features include battery temperature monitoring via a thermistor for JEITA profile compliance, IC thermal regulation at 125°C, and thermal shutdown protection at 150°C. It also provides input voltage dynamic power management and short-circuit protection. The charger supports programmable termination and precharge thresholds, with pin-selectable USB input current limits of 100mA and 500mA.

 

Packaged in a small 10-WSON (2x2 mm) footprint, the BQ24040DSQT is suitable for surface mount applications. Its control interface is standalone and RC-settable, making it easy to integrate into designs. The device is also Functional Safety-Capable, with documentation available to aid functional safety system design, and has IEC 62368-1 CB Certification.

BQ24040DSQT Quick Information

Product Type: Battery Charger IC
Canonical Name: BQ24040DSQT Standalone 1-cell 1-A Linear Battery Charger
Subcategory: Power Management ICs

BQ24040DSQT Compliance

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

BQ24040DSQT Estimated Pricing

Qty Low High
1+ $0.55 $0.55

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

BQ24040DSQT Features

  • Standalone 1-cell, 1A linear battery charger.
  • Supports Li-Ion/Li-Polymer battery chemistries.
  • 4.2V charge voltage with 1% accuracy.
  • Wide 3.5V to 6.5V input voltage range.
  • Compact 10-WSON (2x2mm) surface mount package.

BQ24040DSQT Applications

  • Ideal for portable electronic devices.
  • Suitable for single-cell battery applications.
  • Enables compact power management solutions.
  • Used in devices requiring Li-Ion charging.

BQ24040DSQT FAQs

5 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the BQ24040DSQT?

The recommended input voltage range is 3.5V to 6.5V, with an absolute maximum of 30V.

What is the charge voltage for the BQ24040DSQT?

The charge voltage is fixed at 4.2V with an accuracy of 1%.

What is the maximum charge current of the BQ24040DSQT?

The maximum charge current is 1A with an accuracy of 10%.

What package does the BQ24040DSQT use?

The device is offered in a 10-WSON (2x2mm) surface-mount package.

What is the operating temperature range of the BQ24040DSQT?

The operating temperature range is 0°C to 125°C.

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