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BQ25619RTWR

Public Made by Adom

by adom

Texas Instruments Battery Management, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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BQ25619RTWR

Texas Instruments · Battery Management · WQFN-24-EP(4x4)

BQ25619RTWR from Texas Instruments, in a WQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VAC input Input voltage sensing pin that must be tied to VBUS.
2 PSEL input Power source selection input; HIGH for 500-mA limit, LOW for 2.4-A limit.
3 PMID_GOOD output Open-drain active-high PMID good indicator; HIGH when PMID < 5.2V and Q1 current below 110% IINDPM.
4 STAT output Open-drain charging status indicator; LOW during charge, HIGH when complete, 1Hz blink for fault.
5 SCL input I2C clock input connected to logic rail through 10-kΩ pull-up resistor.
6 SDA bidirectional I2C data line connected to logic rail through 10-kΩ pull-up resistor.
7 /INT output Open-drain interrupt output generating 256-μs active-low pulse for status notification.
8 NC unconnected Not connected pin.
9 /CE input Charge enable input; LOW enables battery charging when CHG_CONFIG bit is 1.
10 BATSNS input Battery voltage sensing input connected as close as possible to battery positive terminal.
11 TS input Battery temperature input with NTC thermistor; resistor divider from REGN to TS to GND.
12 /QON input BATFET enable/reset control input with 200-kΩ pull-up to VBAT and 6.5V internal clamp.
13 BAT power_in Positive battery terminal connection point; 10-μF ceramic capacitor required.
14 BAT power_in Positive battery terminal connection point; internal current sensing resistor between SYS and BAT.
15 SYS power_out Converter output connection point; minimum 10-μF ceramic capacitor to ground required.
16 SYS power_out Converter output connection point; minimum 10-μF ceramic capacitor to ground required.
17 PGND power_in Power ground connection for device operation.
18 PGND power_in Power ground connection for device operation.
19 SW passive Switching node connected to output inductor; 0.047-μF bootstrap capacitor from SW to BTST.
20 SW passive Switching node connected to output inductor; 0.047-μF bootstrap capacitor from SW to BTST.
21 BTST passive Bootstrap supply for PWM high-side gate drive; 0.047-μF capacitor from SW to BTST required.
22 REGN power_out Low-side driver positive supply output at 4.7V typical; 4.7-μF ceramic capacitor to ground required.
23 PMID power_out Boost mode output providing 4.6V to 5.15V regulated voltage; 1-2μF plus 1-nF capacitor recommended.
24 VBUS power_in Input power supply from 4V to 13.5V; 1-μF ceramic capacitor to ground required.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WQFN-24-EP(4x4)
Category Power Management (PMIC)
Pins 25

CAD (KiCad official)

  • Symbol: BQ25619RTWR
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
  • 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: bq25619rtwr-etched.step / bq25619rtwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq25619rtwr.step / bq25619rtwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (68 pp, sha256 d58774ff9dc19ace, retrieved 2026-09-24, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF