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Texas Instruments BQ24031RHLR — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ24031RHLR Li-Ion Battery Charger IC, 1.5A, USB Interface

MPNBQ24031RHLR
Active

Texas Instruments bqTINY™ III series, BQ24031RHLR, single-cell Li-Ion/Polymer battery charger IC, USB interface, 1.5A max charge current, 16V max supply, 20-VFQFN Exposed Pad package, -40°C to 125°C operating range.

$4.6700Ref. price · indicative, final on quote
BQ24031RHLR 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

BQ24031RHLR Technical Specifications
ParameterValue
SeriesbqTINY™ III
Mounting typeSurface Mount
Battery pack voltage4.36V
Voltage16V
Current - chargingConstant - Programmable
Charge current - max1.5A
InterfaceUSB
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Reverse Current, Short Circuit
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent, Timer

Product details

Single-cell Li-Ion charger with USB input and 1.5A capacity

The Texas Instruments BQ24031RHLR is a single-cell Li-Ion or Li-Polymer battery charger IC from the bqTINY™ III series, designed for USB-powered portable devices. It delivers a programmable constant charge current up to 1.5A and accepts a supply voltage up to 16V, making it suitable for both USB and adapter inputs.

Charge current, timer, and fault protection

The charge current is constant and programmable via an external resistor; a programmable timer terminates the charge cycle after a set period. Built-in fault protection covers over-temperature, reverse current, and short-circuit conditions — no external monitoring components needed for these safeguards.

Store the reels dry — the VQFN package is MSL-sensitive and requires dry-bake before reflow if the moisture barrier bag is compromised.

Frequently asked questions

Can BQ24031RHLR charge a 4.2V Li-ion battery?

The BQ24031RHLR is specified for a battery pack voltage of 4.36V. Charging a standard 4.2V Li-ion cell with this part would overcharge the cell — use a charger IC with a 4.2V regulation point instead.

Is BQ24031RHLR compatible with USB charging?

Yes, the BQ24031RHLR accepts a USB input through its USB interface. The maximum supply rating of 16V also allows use with higher-voltage wall adapters, but the charge current must be programmed to stay within the USB port's current capability.