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Texas Instruments BQ2031SN-A5TR — Power Management (PMIC / Gate Driver)
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RoHS Compliant · Lead-Free EIA-481 Standard
Texas Instruments / Power Management (PMIC / Gate Driver)

BQ2031SN-A5TR Lead-Acid Battery Charger IC, 16-SOIC

MPN BQ2031SN-A5TR
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Texas Instruments BQ2031SN-A5TR lead-acid battery charger IC, 1-cell, constant/pulsed charging, 5mA max charge current, 16-SOIC surface-mount package, Tape & Reel.

In Stock: 1 pcs
MOQ: 1 pcs
Logistics: DHL / FedEx DAP (Global Express · 3-7d) Russia & CIS DDP (Door-to-Door Cleared)
Dispatch: Shenzhen / HK
Unit Price (USD)
$18.42 / pc
Direct Purchase Ready
Volume Pricing Breaks Confirmed upon quotation
1+ pcs
$18.42
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$18.42 / ea

1 in stock — maximum per order · 3–4 days lead time
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (11)
Package / Case 16-SOIC (0.154", 3.90mm Width)
Supply Voltage 5.5V

Full Technical Specifications

11 Parameters
BQ2031SN-A5TR specifications
Parameter / AttributeSpecification / Value
MountingSurface Mount
Supply voltage5.5V
Current - chargingConstant, Pulsed
Charge current - max5mA
Operating temperature-20°C ~ 70°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case16-SOIC (0.154\", 3.90mm Width)
Number of cells1
Fault protectionOver Temperature, Over Voltage
Battery chemistryLead Acid
Programmable featuresCurrent, Timer, Voltage
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Standard factory-sealed packaging compliant with EIA-481 standards for automated high-speed SMT pick-and-place lines.

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Technical Details & Description

Charger IC for sealed lead-acid backup

The Texas Instruments BQ2031SN-A5TR is a single-cell lead-acid battery charger IC in a 16-SOIC package, designed for constant-current and pulsed charging up to 5 mA. It integrates fault protection for over-temperature and over-voltage conditions, and offers programmable charge current, charge timer, and charge voltage through external components. With a maximum supply voltage of 5.5 V and an operating temperature range of -20°C to 70°C, it suits board-level charging circuits in portable or backup-power equipment where the ambient stays within commercial-industrial limits.

Frequently asked questions

What compliance documentation does Texas Instruments provide for BQ2031SN-A5TR?

The BQ2031SN-A5TR is ROHS3 compliant, which covers the EU RoHS directive for lead-free materials. No UL or IEC certification is listed in the available documentation.

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