# BQ34210IPWRQ1

**Texas Instruments** · Battery Management ICs · TSSOP-14

BQ34210IPWRQ1 from Texas Instruments, in a TSSOP-14. 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 | SDA | bidirectional | Open-drain slave I2C serial communication data line, used with a 10-kΩ pullup resistor (typical). |
| 2 | SCL | bidirectional | Slave I2C serial communication clock input, used with a 10-kΩ pullup resistor (typical). |
| 3 | VSS | power_in | Device ground. |
| 4 | NC | unconnected | No internal connection. |
| 5 | REG18 | power_out | Capacitor required for the 1.8-V integrated LDO, decoupled with a 2.2-µF ceramic capacitor to VSS; not a supply pin (VREG18 absolute maximum -0.3 V to 2 V). |
| 6 | NC | unconnected | No internal connection. |
| 7 | REGIN | power_in | Battery voltage input and integrated LDO input, decoupled with a 1-µF ceramic capacitor to VSS (VREGIN absolute maximum -0.3 V to 6 V). |
| 8 | NC | unconnected | No internal connection. |
| 9 | SRN | input | Analog input to the internal coulomb-counter for integrating a small voltage between SRP and SRN; SRN is lower than SRP during a charging event. |
| 10 | SRP | input | Analog input to the internal coulomb-counter for integrating a small voltage between SRP and SRN; SRP is higher than SRN during a charging event. |
| 11 | NC | unconnected | No internal connection. |
| 12 | TS | input | Pack thermistor voltage sense for a 103AT-type thermistor; disable with a 10-kΩ resistor to VSS and do not leave floating. |
| 13 | NC | unconnected | No internal connection. |
| 14 | ALERT | bidirectional | Open-drain ALERT output requiring a pullup resistor (typical 10 kΩ), also used as an input to exit SHUTDOWN mode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Power Supply Chip |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `BQ34210IPWRQ1`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `bq34210ipwrq1-etched.step` / `bq34210ipwrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq34210ipwrq1.step` / `bq34210ipwrq1.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/cn/lit/gpn/bq34210-q1) (24 pp, sha256 `5988cf908287d436`, retrieved 2026-11-02, tier: manufacturer)
- **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-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/bq34210ipwrq1-datasheet.pdf)