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Texas Instruments BQ24278RGER — Power Management (PMIC / Gate Driver)
Texas Instruments

TI BQ24278RGER Li-Ion Battery Charger, 2.5 A Max, 24-VQFN

MPNBQ24278RGER
Active

Texas Instruments BQ24278RGER single-cell Li-Ion battery charger, 2.5 A max charge current, 10 V supply max, 24-VFQFN Exposed Pad (4x4 mm), -40°C to 85°C.

$6.3030Ref. price · indicative, final on quote
BQ24278RGER 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

BQ24278RGER Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage3.7V
Voltage10V
Current - chargingConstant - Programmable
Charge current - max2.5A
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Case24-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Over Voltage, Short Circuit
Battery chemistryLithium Ion

Product details

The BQ24278RGER is a single-cell Li-Ion battery charger from Texas Instruments delivering a programmable constant current up to 2.5 A max. That 2.5 A ceiling means a 2000 mAh cell can charge from empty in under an hour, assuming the input supply can sustain the power. The charger integrates over-temperature, over-voltage, and short-circuit fault protection, reducing the external protection components a discrete charger would need.

Supply range and input source flexibility

The device accepts a supply voltage up to 10 V max, which covers USB VBUS (5 V nominal), 5 V wall adapters, and higher-voltage sources like 9 V or 12 V supplies as long as the input stays below the absolute maximum. The wide input range gives the designer headroom to use the same charger across multiple product variants with different input sources, without changing the charger IC.

Package and thermal consideration

The 4x4 mm footprint suits compact handheld and portable devices where board space is tight.

Frequently asked questions

What is the charge current of BQ24278RGER?

The maximum charge current is 2.5 A, and it is constant-current programmable — the actual set point depends on the external sense resistor or I²C register (if the variant supports it). At 1 A, the charger operates well within its rating, so the part is fully capable of charging at 1 A.