# BQ29410PWR

**Texas Instruments** · Battery Management · TSSOP-8

BQ29410PWR from Texas Instruments, in a TSSOP-8. 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 | VC1 | input | Sense voltage input for the most positive cell, with a recommended input voltage range of 0 V to 25 V and an absolute maximum of 28 V. |
| 2 | VC2 | input | Sense voltage input for the second most positive cell, with a recommended input voltage range of 0 V to 25 V and an absolute maximum of 28 V. |
| 3 | VC3 | input | Sense voltage input for the third most positive cell, with a recommended input voltage range of 0 V to 25 V and an absolute maximum of 28 V. |
| 4 | GND | power_in | Ground pin, which is the reference for all device voltages except the cell-to-cell differential voltages. |
| 5 | VC4 | input | Sense voltage input for the least positive cell, with a recommended input voltage range of 0 V to 25 V and an absolute maximum of 28 V. |
| 6 | CD | passive | External capacitor connection that sets the overvoltage detection delay, where td = 1.2 V × C(DELAY) / I(CD) with I(CD) = 0.18 µA, and the recommended delay capacitance is 0.22 µF; the absolute maximum voltage is 28 V. |
| 7 | VDD | power_in | Power supply input, with a recommended supply range of 4 V to 25 V and an absolute maximum of 28 V. |
| 8 | OUT | output | Overvoltage protection output that goes from low to high once the CD pin reaches 1.2 V to activate the external NCH FET that blows the fuse, with an absolute maximum voltage of 28 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `BQ29410PWR`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `bq29410pwr-etched.step` / `bq29410pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq29410pwr.step` / `bq29410pwr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/bq29410.pdf) (21 pp, sha256 `ba3496ab8d0bc500`, retrieved 2026-10-08, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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](docs/bq29410pwr-datasheet.pdf)