# TPS1HB08FQPWPRQ1

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

TPS1HB08FQPWPRQ1 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; all device operating voltages are measured relative to this GND pin. |
| 2 | SNS | output | Analog sense output that carries current proportional to load current (version F cannot measure device temperature) and goes to the fault level ISNSFH when a fault is indicated. |
| 3 | LATCH | input | Fault-handling select input: high latches the switch off until LATCH is taken low, while low (or floating, or grounded through RPROT) gives automatic retry after tRETRY. |
| 4 | EN | input | Active-high channel control input with VIL max 0.8 V, VIH min 2.0 V, and an internal pull-down of 0.5 to 2 MΩ. |
| 5 | FLT | output | Version F only: open-drain fault output with pull-down that is pulled low when a fault is indicated, and requires a 10 kΩ pull-up to a 5 V rail. |
| 6 | VOUT | output | Protected high-side channel output to the load, limited by the device current limit and clamped during inductive turn-off. |
| 7 | VOUT | output | Protected high-side channel output to the load, limited by the device current limit and clamped during inductive turn-off. |
| 8 | VOUT | output | Protected high-side channel output to the load, limited by the device current limit and clamped during inductive turn-off. |
| 9 | VOUT | output | Protected high-side channel output to the load, limited by the device current limit and clamped during inductive turn-off. |
| 10 | VOUT | output | Protected high-side channel output to the load, limited by the device current limit and clamped during inductive turn-off. |
| 11 | VOUT | output | Protected high-side channel output to the load, limited by the device current limit and clamped during inductive turn-off. |
| 12 | NC | unconnected | No connection; leave floating. |
| 13 | NC | unconnected | No connection; leave floating. |
| 14 | SEL1 | input | Diagnostic select input that has no function on version F, so it must be connected through an RPROT resistor to IC GND. |
| 15 | NC | unconnected | No connection; leave floating. |
| 16 | DIA_EN | input | Active-high diagnostic enable input with VIL max 0.8 V, VIH min 2.0 V, and an internal pull-down of 0.5 to 2 MΩ; when unused, analog sense, open-load and battery-short diagnostics are unavailable. |
| 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: `TPS1HB08FQPWPRQ1`
- Footprint: `Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm`
- 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files: `tps1hb08fqpwprq1-etched.step` / `tps1hb08fqpwprq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps1hb08fqpwprq1.step` / `tps1hb08fqpwprq1.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/tps1hb08-q1) (53 pp, sha256 `d93a19efaa6d5443`, retrieved 2026-10-08, 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-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/tps1hb08fqpwprq1-datasheet.pdf)