# TL2843DR

**Texas Instruments** · AC-DC Controllers And Regulators · SOIC-14

TL2843DR from Texas Instruments, in a SOIC-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 | COMP | bidirectional | Error amplifier compensation pin for frequency response optimization |
| 2 | NC | unconnected | No connection pin |
| 3 | VFB | input | Error amplifier input accepting 0 to 5.5V feedback signals |
| 4 | NC | unconnected | No connection pin |
| 5 | ISENSE | input | Current sense comparator input accepting 0 to 5.5V sense signals |
| 6 | NC | unconnected | No connection pin |
| 7 | RT/CT | bidirectional | Oscillator RC timing network connection accepting 0 to 5.5V |
| 8 | POWER GROUND | power_in | Output PWM ground terminal providing reference for output stage |
| 9 | GND | power_in | Device power supply ground reference terminal |
| 10 | OUTPUT | output | PWM output with 0 to 30V range and ±1A peak current capability |
| 11 | VC | power_in | Output PWM positive voltage supply input with 30V maximum rating |
| 12 | VCC | power_in | Device positive voltage supply input with 30V maximum rating |
| 13 | NC | unconnected | No connection pin |
| 14 | REF | output | Oscillator voltage reference output terminal |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Power Management (PMIC) |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `TL2843DR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `tl2843dr-etched.step` / `tl2843dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl2843dr.step` / `tl2843dr.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/lit/ds/symlink/tl2843.pdf) (30 pp, sha256 `a83316c6a1cb9720`, retrieved 2026-10-05, tier: manufacturer)
- **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/tl2843dr-datasheet.pdf)