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Texas Instruments BQ25071DQCR — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ25071DQCR LiFePO4 Battery Charger IC, 1A, 10-WSON

MPNBQ25071DQCR
Active

Texas Instruments BQ25071DQCR, 1-cell LiFePO4 linear battery charger, 1A max charge current, USB interface, 10-WFDFN exposed pad package, -40°C to 85°C operating temperature.

$0.8670Ref. price · indicative, final on quote
BQ25071DQCR datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BQ25071DQCR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage3.5V
Voltage10.2V
Current - chargingConstant - Programmable
Charge current - max1A
InterfaceUSB
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Case10-WFDFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Over Voltage
Battery chemistryLithium Iron Phosphate

Product details

1-cell LiFePO4 linear charger with USB interface

The Texas Instruments BQ25071DQCR is a linear battery charger IC designed specifically for single-cell Lithium Iron Phosphate (LiFePO4) packs, with a regulated battery voltage of 3.5 V. It integrates a USB-compatible input interface and delivers a programmable constant charge current up to 1 A, with built-in over-temperature and over-voltage fault protection.

Charge current and thermal management at the exposed pad

The charge current is programmable via an external resistor, allowing the designer to trade off charge time against thermal budget for the board layout. Maximum supply voltage is 10.2 V, so the input rail should be a regulated 5 V USB bus or a clean DC supply — not an unregulated wall adapter that can sag or spike.

Frequently asked questions

Can BQ25071DQCR be used for 1-cell LiFePO4 batteries at 3.5 V?

Yes, the BQ25071DQCR is designed specifically for single-cell LiFePO4 chemistry with a regulated battery pack voltage of 3.5 V.

What is the difference between BQ25071DQCR and BQ25070?

The BQ25071 is a 1-cell LiFePO4 charger at 3.5 V pack voltage, while the BQ25070 targets 1-cell Li-ion at 4.2 V — the chemistry and voltage setpoint are the primary difference.

What is the lead time for ordering BQ25071DQCR from distributors?

Lead time is confirmed at quote time against the specific BOM quantity.