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Texas Instruments BQ24109RHLT — Power Management (PMIC / Gate Driver)

BQ24109RHLT – TI bqSWITCHER Li-Ion Charger IC, 2A, 20-VQFN

MPNBQ24109RHLT
Active

Texas Instruments bqSWITCHER™ series, Power Management (PMIC / Gate Driver), BQ24109RHLT, single-cell Li-Ion/Polymer battery charger, 2A max charge current, 16V max supply, 20-VFQFN Exposed Pad package, -40°C to 85°C operating temperature.

$6.5400Ref. price · indicative, final on quote
Texas Instruments BQ24109RHLT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24109RHLT specifications
ParameterValue
SeriesbqSWITCHER™
MountingSurface Mount
Battery pack voltage4.2V
Supply voltage16V
Current - chargingConstant - Programmable
Charge current - max2A
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Over Voltage
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent, Timer

Product details

Single-cell Li-ion charger with programmable current and timer

It targets portable devices running from a 4.2V battery pack, with input supply tolerance up to 16V.

Programmable features and fault protection

Charge current and charge timer are programmable via external resistors, giving the designer control over the charge profile without an I²C bus. Over-temperature and over-voltage fault protection are integrated, so the charger shuts down safely if the die exceeds its thermal limit or the input voltage spikes above the 16V maximum.

No PCN or EOL notice has been issued for this base product number BQ24109. Sourcing is via RFQ against the BOM quantity; lead time is confirmed at quote time.

Frequently asked questions

How many cells does BQ24109RHLT support?

It is designed for single-cell Li-Ion or Li-Polymer battery packs, with a charge termination voltage of 4.2V. It does not support multi-cell stacks without external balancing circuitry.