component
BQ25040DQCR
Public Made by Adomby adom
Texas Instruments Battery Management, WSON-10-EP(2x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownBQ25040DQCR
Texas Instruments · Battery Management · WSON-10-EP(2x3)
BQ25040DQCR from Texas Instruments, in a WSON-10-EP(2x3). 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 | IN | power_in | Input power supply (4.35V to 26V) with overvoltage protection at 6.9V; bypass to VSS with at least 1µF ceramic capacitor. |
| 2 | ISET | input | Current programming input; connect resistor from 475Ω to 5.36kΩ to VSS to program fast-charge current from 100mA to 1.1A. |
| 3 | VSS | power_in | Ground terminal; connect to thermal pad and ground plane of the circuit. |
| 4 | LDO | power_out | LDO output regulated to 4.9V with up to 50mA output current; bypass to VSS with at least 1µF ceramic capacitor. |
| 5 | IFULL | input | Charge done current programming input; connect resistor to VSS to program charge done threshold from 5% to 50% of fast-charge current. |
| 6 | EN/SET | input | One-wire interface input with internal ~260kΩ pulldown to VSS for device enable/disable and mode selection. |
| 7 | VSS | power_in | Ground terminal; connect to thermal pad and ground plane of the circuit. |
| 8 | CHG | tri_state | Charge done indicator open-drain output; pulled low during charging, high impedance when battery fully charged or during fault conditions. |
| 9 | PG | tri_state | Power good open-drain output; pulled low when input power above battery voltage by 80mV and below 6.9V overvoltage protection threshold. |
| 10 | BAT | power_out | Battery connection output; supplies up to 2.3A in production test mode at 4.2V or up to 1.1A charge current in normal mode; bypass to VSS with at least 1µF ceramic capacitor. |
| 11 | PAD | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-10-EP(2x3) |
| Category | Power Management (PMIC) |
| Pins | 11 |
CAD (KiCad official)
- Symbol:
BQ25040DQCR - Footprint:
Package_SON:WSON-10-1EP_2x3mm_P0.5mm_EP0.84x2.4mm - 3D model: WSON-10-EP(2x3) (KiCad packages3D, STEP)
- 3D model files:
bq25040dqcr-etched.step/bq25040dqcr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq25040dqcr.step/bq25040dqcr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
186049e80d00120e, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).