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Texas Instruments BQ24156AYFFR — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ24156AYFFR Li-Ion/Polymer Charger, I²C, 1.55 A, 20-DSBGA

MPNBQ24156AYFFR
Active

Texas Instruments BQ24156AYFFR, single-cell Li-Ion/Polymer battery charger, I²C interface, 1.55 A max charge current, 4.44 V max pack voltage, over-temperature and over-voltage protection, 20-DSBGA package, -30°C to 85°C operating temperature.

$3.6750Ref. price · indicative, final on quote
BQ24156AYFFR 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

BQ24156AYFFR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage4.44V (Max)
Voltage9V
Current - chargingConstant - Programmable
Charge current - max1.55A
InterfaceI²C
Operating temperature-30°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-UFBGA, DSBGA
Number of cells1
Fault protectionOver Temperature, Over Voltage
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent, Timer

Product details

20-DSBGA package and I²C control

The BQ24156AYFFR is a single-cell Li-Ion/Polymer linear charger from Texas Instruments in a 20-DSBGA package (0.50 mm pitch, 0.35 mm ball diameter). The I²C interface handles charge current programming, timer settings, and status monitoring — no external resistors for current setpoint.

Charge parameters and protection

Maximum charge current is 1.55 A, programmable via I²C; the battery pack voltage ceiling is 4.44 V. Over-temperature and over-voltage fault protection are built in — the charger enters a safe state without external supervisory circuitry. Operating temperature range is -30°C to 85°C, covering most portable and industrial battery-powered equipment. Supply voltage max is 9 V, so a 5 V USB rail or a 9 V wall adapter both work.

Frequently asked questions

Can BQ24156AYFFR charge a 2-cell battery?

No — it is designed for single-cell Li-Ion/Polymer packs only. The battery pack voltage is limited to 4.44 V max, which corresponds to a single cell.