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BQ21040DBVT The Texas Instruments BQ21040DBVT is a highly integrated linear battery charger IC for space-limited portable applications. It supports 1-cell Li-Ion/Li-Polymer batteries with a maximum charge current of 800mA.
Mfr Part #:

BQ21040DBVT

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ21040DBVT is a highly integrated linear battery charger IC for space-limited portable applications. It supports 1-cell Li-Ion/Li-Polymer batteries with a maximum charge current of 800mA.
✓ Total Stock: 7,337 pcs
$ Price Range: $0.68

BQ21040DBVT Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Tomark Electronics Ltd ✓
Non-Authorised Inventory information
4,200 pcs
On Request
4200 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request 23+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
137 pcs
On Request
137 pcs On Request 1 On Request On Request 21+ 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.

BQ21040DBVT 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
Interface
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
Supplier Package
Voltage
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BQ21040DBVT Description

Short technical summary and product information.

The BQ21040DBVT from Texas Instruments is a compact linear battery charger designed for Li-Ion and Li-Polymer cells. It operates from a USB port or AC adapter, featuring a wide input voltage range with overvoltage protection.

 

Key electrical specifications include a 1-cell configuration, 800mA maximum charge current, and a battery pack voltage of 4.2V. The device offers precise charge voltage and current accuracy, along with low battery leakage current. It operates within a temperature range of 0°C to 125°C.

 

This IC is housed in a small SOT-23-6 package, making it suitable for space-constrained designs. It includes essential fault protection features such as over-temperature, over-voltage, and short-circuit protection. The standalone control interface simplifies integration into various portable applications.

BQ21040DBVT Quick Information

Product Type: Battery Charger IC
Canonical Name: BQ21040DBVT 1-Cell Li-Ion/Li-Polymer Battery Charger
Subcategory: Power Management ICs

BQ21040DBVT Compliance

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

BQ21040DBVT Estimated Pricing

Qty Low High
1+ $0.68 $0.68

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

BQ21040DBVT Features

  • Linear charger for 1-cell Li-Ion/Polymer.
  • Up to 800mA charge current.
  • Input overvoltage protection at 6.6V.
  • Thermal regulation and shutdown protection.
  • Standalone RC-settable control interface.

BQ21040DBVT Applications

  • Ideal for portable consumer electronics.
  • Used in single-cell Li-Ion battery charging.
  • Suitable for USB-powered charging applications.
  • Applicable in handheld medical devices.

BQ21040DBVT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the BQ21040DBVT?

0°C to 125°C.

What package is the BQ21040DBVT available in?

SOT-23-6.

What is the maximum charge current of the BQ21040DBVT?

800mA.

What is the input voltage range for the BQ21040DBVT?

3.5V to 6.45V.

What battery chemistry does the BQ21040DBVT support?

Lithium Ion/Polymer.

Does the BQ21040DBVT have input overvoltage protection?

Yes, with a threshold of 6.6V.

What is the charge voltage accuracy of the BQ21040DBVT?

1%.

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