# TPS1HA08AQPWPRQ1

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

TPS1HA08AQPWPRQ1 from Texas Instruments, in a HTSSOP-16. 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 for all circuits, connects to system ground plane. |
| 2 | SNS | output | Analog sense output providing current output proportional to load current (KSNS=4600), junction temperature, or supply voltage as selected by SEL pins, clamped at VSNSclamp=5.9V. |
| 3 | LATCH | input | Latch control input with VIL=0.8V, VIH=2V and 250mV hysteresis; low level latches fault state, high level enables auto-retry after tRETRY timeout. |
| 4 | EN | input | Switch enable control input with VIL=0.8V, VIH=2V, 250mV hysteresis, and 1MΩ internal pull-down; high level enables switch output drive to load. |
| 5 | ST | tri_state | Open-drain diagnostic output with VOL=0.4V at 1mA sink current; pulls low to indicate fault conditions including thermal shutdown, current limit, energy limit, or open-load detection. |
| 6 | VOUT | output | Power switch output pin; all VOUT pins (6 total) must be tied together on PCB for symmetric current distribution; rated for 20A continuous (version A). |
| 7 | VOUT | output | Power switch output pin; all VOUT pins (6 total) must be tied together on PCB for symmetric current distribution; rated for 20A continuous (version A). |
| 8 | VOUT | output | Power switch output pin; all VOUT pins (6 total) must be tied together on PCB for symmetric current distribution; rated for 20A continuous (version A). |
| 9 | VOUT | output | Power switch output pin; all VOUT pins (6 total) must be tied together on PCB for symmetric current distribution; rated for 20A continuous (version A). |
| 10 | VOUT | output | Power switch output pin; all VOUT pins (6 total) must be tied together on PCB for symmetric current distribution; rated for 20A continuous (version A). |
| 11 | VOUT | output | Power switch output pin; all VOUT pins (6 total) must be tied together on PCB for symmetric current distribution; rated for 20A continuous (version A). |
| 12 | NC | unconnected | No internal connection; pin has no electrical function and should be left unconnected. |
| 13 | NC | unconnected | No internal connection; pin has no electrical function and should be left unconnected. |
| 14 | SEL1 | input | Diagnostic selection input with VIL=0.8V, VIH=2V, 250mV hysteresis, and 1MΩ pull-down; high level selects temperature or voltage sensing combined with SEL2 to multiplex SNS output. |
| 15 | SEL2 | input | Diagnostic selection input with VIL=0.8V, VIH=2V, 250mV hysteresis, and 1MΩ pull-down; combined with SEL1 to select load current (00), temperature (10), or voltage (11) on SNS output. |
| 16 | DIA_EN | input | Diagnostic enable input with VIL=0.8V, VIH=2V, 250mV hysteresis, and 1MΩ pull-down; high level enables diagnostic functions and open-load or short-to-battery fault 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 |
| Category | Power Management (PMIC) |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `TPS1HA08AQPWPRQ1`
- Footprint: `Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm`
- 3D model: HTSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `tps1ha08aqpwprq1-etched.step` / `tps1ha08aqpwprq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps1ha08aqpwprq1.step` / `tps1ha08aqpwprq1.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 2026-10-03, 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/tps1ha08aqpwprq1-datasheet.pdf)