# TPS1HA08DQPWPRQ1

**Texas Instruments** · Power Distribution Switches · HTSSOP-16-EP

TPS1HA08DQPWPRQ1 from Texas Instruments, in a HTSSOP-16-EP. 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 | GND | power_in | Device ground reference connection point. |
| 2 | SNS | output | Analog sense output current proportional to load current (KSNS=4600), device junction temperature (0.0112 mA/°C), or supply voltage (0.0867 mA/V) selected by SEL1/SEL2 with 5.9 V maximum clamp voltage. |
| 3 | LATCH | input | Fault latch control input; high level selects latching behavior while low or floating selects automatic retry after tRETRY timeout (1-3 ms). |
| 4 | EN | input | Switch enable control input (active high, VIH=2 V, VIL=0.8 V) that gates the power stage output. |
| 5 | ST | tri_state | Open-drain fault status output pulled low (<0.4 V) when thermal shutdown, current limit, or energy limit fault is triggered. |
| 6 | VOUT | output | Power stage output connection (pin 6 of 6) with on-resistance of 8 mΩ at 25°C and 20 mΩ at 150°C. |
| 7 | VOUT | output | Power stage output connection (pin 7 of 6) with on-resistance of 8 mΩ at 25°C and 20 mΩ at 150°C. |
| 8 | VOUT | output | Power stage output connection (pin 8 of 6) with on-resistance of 8 mΩ at 25°C and 20 mΩ at 150°C. |
| 9 | VOUT | output | Power stage output connection (pin 9 of 6) with on-resistance of 8 mΩ at 25°C and 20 mΩ at 150°C. |
| 10 | VOUT | output | Power stage output connection (pin 10 of 6) with on-resistance of 8 mΩ at 25°C and 20 mΩ at 150°C. |
| 11 | VOUT | output | Power stage output connection (pin 11 of 6) with on-resistance of 8 mΩ at 25°C and 20 mΩ at 150°C. |
| 12 | NC | unconnected | No connection; leave unconnected or floating. |
| 13 | NC | unconnected | No connection; leave unconnected or floating. |
| 14 | SEL1 | input | Diagnostic multiplexer select input 1; selects between load current (low) and junction temperature (high) on SNS output when SEL2=0. |
| 15 | SEL2 | input | Diagnostic multiplexer select input 2; selects between load current/temperature (low) and supply voltage (high) sensing on SNS output. |
| 16 | DIA_EN | input | Diagnostic enable input (active high) that activates SNS analog output and open-load/short-to-battery detection. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-16-EP |
| Category | Power Supply Chip |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `TPS1HA08DQPWPRQ1`
- Footprint: `Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm`
- 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files: `tps1ha08dqpwprq1-etched.step` / `tps1ha08dqpwprq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps1ha08dqpwprq1.step` / `tps1ha08dqpwprq1.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/tps1ha08-q1) (62 pp, sha256 `a1d902aeb153f667`, 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](docs/tps1ha08dqpwprq1-datasheet.pdf)