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BQ2031SN-A5TR The BQ2031SN-A5TR from Texas Instruments is a switch-mode battery charger IC designed for lead-acid batteries. It features a 5.5V input voltage and supports a charge voltage up to 20V.
Mfr Part #:

BQ2031SN-A5TR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The BQ2031SN-A5TR from Texas Instruments is a switch-mode battery charger IC designed for lead-acid batteries. It features a 5.5V input voltage and supports a charge voltage up to 20V.
✓ Total Stock: 3,500 pcs
$ Price Range: $8.78

BQ2031SN-A5TR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
3,500 pcs
On Request
3500 pcs On Request 1 On Request On Request 18+ 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.

BQ2031SN-A5TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Charge Current
Control Interface
Current
Fault Protection
Mounting Type
Number of Cells
Operating Temperature
Programmable Features
SVHC Present
Supplier Device Package
Tape & Reel
Voltage
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BQ2031SN-A5TR Description

Short technical summary and product information.

The BQ2031SN-A5TR is a switch-mode lead-acid battery charger IC manufactured by Texas Instruments. This component is designed for efficient battery charging applications, supporting a maximum input voltage of 5.5V and capable of charging up to 20V.

 

Key features include a maximum charge current of 2A and a control topology utilizing switch-mode buck conversion. The device operates within a temperature range of -20°C to 70°C and is available in a 16-SOIC package, suitable for surface mount applications.

 

It offers features such as battery temperature thermistor monitoring, pin-selectable charge algorithms including Two-Step Voltage and Two-Step Current, and pre-charge qualification to detect and condition damaged cells. The IC also provides direct LED control outputs for charge status and fault indication.

BQ2031SN-A5TR Quick Information

Product Type: Battery Charger IC
Canonical Name: BQ2031SN-A5TR Switch-mode Lead-Acid Battery Charger
Subcategory: Power Management

BQ2031SN-A5TR Compliance

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

BQ2031SN-A5TR Estimated Pricing

Qty Low High
1+ $8.78 $8.78

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

BQ2031SN-A5TR Features

  • Switch-mode buck topology for lead-acid batteries.
  • Supports input voltage from 4.5V to 5.5V.
  • Programmable charge voltage up to 20V.
  • Maximum charge current of 2A.
  • Operates from -20°C to 70°C.

BQ2031SN-A5TR Applications

  • Ideal for lead-acid battery charging.
  • Suitable for cyclic and float charge modes.
  • Used in portable power applications.
  • Enables status and fault indication.

BQ2031SN-A5TR FAQs

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

The input voltage range is 4.5V to 5.5V, with an absolute maximum of 7V.

What is the package type?

The device is available in a 16-SOIC (0.154", 3.90mm Width) surface mount package.

What is the operating temperature range?

-20°C to 70°C.

What battery chemistry does this charger support?

Lead Acid.

What control topology is used?

Switch-Mode Buck.

What fault protection features are included?

Over Temperature and Over Voltage protection.

What parameters can be programmed?

Charge current, timer, and voltage.

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