# ALM2403QPWPRQ1

**Texas Instruments** · Operational Amplifier · HTSSOP-14-EP

ALM2403QPWPRQ1 from Texas Instruments, in a HTSSOP-14-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 | IN1- | input | Inverting op amp input for channel 1. |
| 2 | IN1+ | input | Noninverting op amp input for channel 1. |
| 3 | OTF/SH_DN | bidirectional | Overtemperature flag and shutdown; high (≥1.2 V) enables operation, low (≤0.5 V) initiates low IQ shutdown state. |
| 4 | IN2+ | input | Noninverting op amp input for channel 2. |
| 5 | IN2- | input | Inverting op amp input for channel 2. |
| 6 | V- | power_in | Negative supply pin; must be connected together with pin 14. |
| 7 | NC | unconnected | No internal connection; do not connect. |
| 8 | NC | unconnected | No internal connection; do not connect. |
| 9 | OUT2 | output | Op amp output for channel 2; sources 500 mA and sinks 400 mA peak at 25°C. |
| 10 | V+ | power_in | Positive supply pin; voltage range 5 to 24 V. |
| 11 | V+ | power_in | Positive supply pin; voltage range 5 to 24 V. |
| 12 | V+ | power_in | Positive supply pin; voltage range 5 to 24 V. |
| 13 | OUT1 | output | Op amp output for channel 1; sources 500 mA and sinks 400 mA peak at 25°C. |
| 14 | V- | power_in | Negative supply pin; must be connected together with pin 6. |
| 15 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-14-EP |
| Category | Amplifiers/Comparators |
| Pins | 15 |

## CAD (KiCad official)

- Symbol: `ALM2403QPWPRQ1`
- Footprint: `Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm`
- 3D model: HTSSOP-14-EP (KiCad packages3D, STEP)
- 3D model files: `alm2403qpwprq1-etched.step` / `alm2403qpwprq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `alm2403qpwprq1.step` / `alm2403qpwprq1.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/alm2403-q1) (31 pp, sha256 `53ef0ff82308b067`, retrieved 2026-09-24, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/alm2403qpwprq1-datasheet.pdf)