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BQ2031SN-A5TRG4 The Texas Instruments BQ2031SN-A5TRG4 is a switch-mode battery charger IC designed for lead-acid batteries. It features a 5.5V input voltage and a maximum charge current of 2A.
Mfr Part #:

BQ2031SN-A5TRG4

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ2031SN-A5TRG4 is a switch-mode battery charger IC designed for lead-acid batteries. It features a 5.5V input voltage and a maximum charge current of 2A.
Total Stock: 8,610 pcs
$ Price Range: $0.75

BQ2031SN-A5TRG4 Available from 1 distributor

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8,610 pcs
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BQ2031SN-A5TRG4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Absolute Maximum Input Voltage
Battery Charge Voltage (Minimum/Maximum)
Battery Chemistry
Charge Current
Charge Current (Nominal/Maximum)
Control Interface
Control Topology
Current
Fault Protection
Mounting Type
Number of Cells
Number of series cells
Operating Temperature
Operating Voltage (Minimum/Maximum)
Programmable Features
SVHC Present
Supplier Device Package
Supplier Package
Voltage

BQ2031SN-A5TRG4 Description

Short technical summary and product information.

The BQ2031SN-A5TRG4 from Texas Instruments is a switch-mode battery charger IC specifically designed for lead-acid battery applications. It operates with an input voltage range of 4.5V to 5.5V and can handle an absolute maximum input voltage of 7V. The device supports a battery charge voltage range from 0V to 20V and offers a maximum charge current of 2A.

 

This IC features user-selectable charge algorithms, including Two-Step Voltage, Two-Step Current, and Pulsed Current modes, allowing for flexible charging strategies. It also includes features like battery temperature thermistor monitoring, pre-charge qualification for damaged cells, and continuous charging qualification based on temperature and voltage limits. The control interface is standalone and RC-settable.

 

The BQ2031SN-A5TRG4 is available in a 16-SOIC surface mount package. Its operating temperature range is -20°C to 70°C. The device provides direct LED control outputs to display charge status and fault conditions, aiding in system monitoring.

BQ2031SN-A5TRG4 Quick Information

Product Type: Battery Charger IC
Canonical Name: BQ2031SN-A5TRG4 Switch-mode Lead-Acid Battery Charger
Subcategory: Power Management ICs

BQ2031SN-A5TRG4 Compliance

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

BQ2031SN-A5TRG4 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

BQ2031SN-A5TRG4 Features

  • Switch-mode buck topology for lead-acid batteries.
  • Input voltage range of 4.5V to 5.5V.
  • Maximum charge current of 2A.
  • User-selectable charge algorithms.
  • 16-SOIC surface mount package.

BQ2031SN-A5TRG4 Applications

  • Charges lead-acid batteries in UPS systems.
  • Ideal for emergency lighting backup power.
  • Used in medical equipment battery charging.
  • Suitable for industrial backup power supplies.
  • Manages cyclic and float charge profiles.

BQ2031SN-A5TRG4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the BQ2031SN-A5TRG4?

The input voltage range is 4.5V to 5.5V.

What is the maximum charge current for this battery charger IC?

The maximum charge current is 2A.

What battery chemistry is the BQ2031SN-A5TRG4 designed for?

It is designed for Lead Acid battery chemistry.

What is the operating temperature range?

The operating temperature range is -20°C to 70°C.

What package type is the BQ2031SN-A5TRG4 available in?

It is available in a 16-SOIC package.

What are the programmable features of this IC?

Programmable features include current, timer, and voltage.

What fault protection is included?

Fault protection includes over temperature and over voltage.

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