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Texas Instruments BQ24170RGYT — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ24170RGYT Li-Ion Charger IC, 4A, 1-3 Cells, 24-VQFN

MPNBQ24170RGYT
Active

Texas Instruments BQ24170RGYT, Li-Ion/Polymer battery charger IC, 4A max charge current, 1-3 cells, 17V max supply, 24-VFQFN Exposed Pad, -40°C to 85°C.

$5.8300Ref. price · indicative, final on quote
BQ24170RGYT 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

BQ24170RGYT Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage4.2V
Voltage17V
Current - chargingConstant - Programmable
Charge current - max4A
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case24-VFQFN Exposed Pad
Number of cells1 ~ 3
Fault protectionOver Current, Over Temperature, Over Voltage
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent

Product details

4A programmable charge current — what it buys the BOM

The BQ24170RGYT from Texas Instruments is a standalone Li-Ion/Polymer charger IC that delivers up to 4A programmable charge current to 1-3 series cells.

Supply headroom and input protection

The 17V max supply gives the part headroom to run from a 12V or 15V adapter while still regulating the charge voltage to 4.2V per cell. It also absorbs the input ripple from a noisy automotive rail or a flyback supply without needing a pre-regulator. The integrated fault protection — overcurrent, overtemperature, and overvoltage — shuts down the charge cycle before the silicon or the battery sees stress, so the designer can skip the discrete protection clamp on the input.

Temperature grade and package — deployment fit

Surface-mount only; the Tape & Reel option suits automated pick-and-place for volume builds.

Frequently asked questions

Can BQ24170RGYT charge a 2S or 3S Li-ion battery?

Yes. The BQ24170RGYT supports 1 to 3 series cells with a 4.2V per-cell regulation voltage. It handles a 2S pack (8.4V) or a 3S pack (12.6V) with the charge current programmed up to 4A. The 17V max supply provides enough input headroom for both configurations from a 12V or 15V adapter.