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Texas Instruments BQ24100RHLR — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ24100RHLR Li-Ion Charger IC, 2A Max, 16V Input, Active

MPNBQ24100RHLR
Active

Texas Instruments bqSWITCHER™ series BQ24100RHLR, single-cell Li-Ion/Polymer battery charger IC, 2A max charge current, 16V max supply, 20-VFQFN Exposed Pad, -40°C to 85°C, Active.

$5.7000Ref. price · indicative, final on quote
BQ24100RHLR 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.
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Specifications

BQ24100RHLR Technical Specifications
ParameterValue
SeriesbqSWITCHER™
Mounting typeSurface Mount
Battery pack voltage4.2V
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

The BQ24100RHLR is a single-cell Li-Ion/Polymer charger from the bqSWITCHER™ family, rated for a 2A max charge current and a 16V supply ceiling. That 2A limit is the practical charging speed for a single 18650 or pouch cell in a handheld or portable device — enough to charge a 2000 mAh cell in about an hour without pushing the thermal budget of the 20-VFQFN exposed-pad package.

Charge current set by external resistor — no I2C needed

The charge current is constant and programmable via an external resistor. That means you set the rate with a single passive component, not a serial bus — useful for designs where the charger runs autonomously from the system MCU. The programmable features also include a timer, which acts as a safety timeout if the battery never reaches the 4.2V full-charge voltage.

Frequently asked questions

What is the charge current limit for BQ24100RHLR?

The maximum charge current is 2A, set by an external resistor. The charger is constant-current programmable, so you choose the rate below that ceiling with a single resistor value.

Can I replace BQ24103 with BQ24100RHLR?

The BQ24100 and BQ24103 are different variants within the same bqSWITCHER™ family. Pin compatibility depends on the specific feature set — the BQ24100 lacks some of the BQ24103's additional features. Verify the pinout and feature differences against your design before substituting.