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BQ25890RTWT

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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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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BQ25890RTWT

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

BQ25890RTWT 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 VBUS power_in Input supply voltage (3.9V to 14V); requires 1µF bypass capacitor to PGND.
2 D+ bidirectional USB D+ data line for port type detection via BC1.2 protocol.
3 D- bidirectional USB D- data line for port type detection via BC1.2 protocol.
4 STAT output Open-drain charge status indicator; LOW during charging, HIGH when complete, blinks 1Hz on fault.
5 SCL input I2C serial clock input; pull up with 10kΩ resistor to logic rail.
6 SDA bidirectional I2C serial data line; pull up with 10kΩ resistor to logic rail.
7 INT output Open-drain interrupt output; active-low 256µs pulse on device status or fault events.
8 OTG input Boost mode enable input (active HIGH); activates 5V USB OTG when OTG_CONFIG=1.
9 CE input Charge enable input (active LOW); charging enabled when CHG_CONFIG=1 and CE is LOW.
10 ILIM input Input current limit analog input; 0.8V reference sets maximum input current via resistor to ground.
11 TS input Temperature sensor analog input; connect 103AT-2 NTC thermistor for battery charge temperature monitoring.
12 QON input BATFET enable/reset control input (active LOW); exits shipping mode or performs system reset.
13 BAT power_in Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor.
14 BAT power_in Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor.
15 SYS power_out System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor.
16 SYS power_out System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor.
17 PGND power_in Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns.
18 PGND power_in Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns.
19 SW power_out Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST.
20 SW power_out Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST.
21 BTST power_out Bootstrap supply for high-side gate driver; connect 0.047µF capacitor between SW and this pin.
22 REGN power_out 6V low-side gate driver and temperature sensor bias supply output; requires 4.7µF (10V rated) capacitor to ground.
23 PMID output Input power distribution node (RBFET and HSFET drain connection); attach bypass capacitance to PGND.
24 DSEL output Open-drain D+/D- multiplexer selection output (active LOW); stays LOW if MaxCharge adapter detected.
25 PowerPAD 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: BQ25890RTWT
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: bq25890rtwt-etched.step / bq25890rtwt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq25890rtwt.step / bq25890rtwt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (70 pp, sha256 2e8c133466478bb3, retrieved 2026-10-07, 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 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (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