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Texas Instruments BQ25619RTWT — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ25619RTWT Battery Charger IC, I²C/USB, 1A, 24-WFQFN

MPNBQ25619RTWT
Active

Texas Instruments BQ25619RTWT, single-cell Li-Ion/Polymer battery charger, I²C and USB interface, 1A max charge current, 4.52V max battery pack voltage, 24-WFQFN exposed pad package, -40°C to 85°C operating temperature.

$4.9600Ref. price · indicative, final on quote
BQ25619RTWT 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

BQ25619RTWT Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage4.52V (Max)
Voltage13.5V
Current - chargingConstant - Programmable
Charge current - max1A
InterfaceI²C, USB
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case24-WFQFN Exposed Pad
Number of cells1
Fault protectionOver Current, Over Temperature, Over Voltage
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent, Timer, Voltage

Product details

Single-cell Li-Ion charger with I²C and USB

The Texas Instruments BQ25619RTWT is a single-cell Li-Ion/Polymer battery charger IC with an I²C and USB interface, designed for portable and battery-powered equipment. It delivers a programmable constant charge current up to 1A and supports a maximum battery pack voltage of 4.52V. The device integrates fault protection for over current, over temperature, and over voltage conditions, making it suitable for applications where safe charging is critical.

Charge current and thermal budget

The 1A maximum charge current is programmable via the I²C interface, along with charge timer and voltage settings.

Protection features for single-cell designs

The BQ25619RTWT includes over current, over temperature, and over voltage fault protection. For a single-cell Li-Ion/Polymer battery, the over voltage threshold at 4.52V protects against overcharge, while the over temperature protection shuts down charging if the die exceeds safe limits — important in compact enclosures where thermal coupling to the battery is tight.

Frequently asked questions

What is the charging current of BQ25619RTWT?

The maximum charge current is 1A, and it is programmable via the I²C interface along with charge timer and voltage settings.

What interface does BQ25619RTWT use?

The BQ25619RTWT uses an I²C interface for communication and also supports USB input for charging.