# DIO8242CTC3

**DIOO** · LED Drivers · SOT-89-3

DIO8242CTC3 from DIOO, in a SOT-89-3. 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 | VC | passive | LED current ripple programming pin; the capacitor CC between VC and GND sets the final ripple amplitude, and VC is rated -0.3 to 6 V. |
| 2 | LEDN | passive | Connects to the cathode of the LED string (drain of the internal NMOSFET), with an absolute maximum rating of 100 V and recommended operation below 100 V. |
| 3 | GND | power_in | Power ground; the sensing resistor Rcs is connected between the NMOSFET source and GND. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DIOO |
| Package | SOT-89-3 |
| Category | LED Drivers |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| LEDN pin voltage |  |  |  | 100 | V |  | 3 |
| VC pin voltage |  | -0.3 |  | 6 | V |  | 3 |
| Junction Temperature |  |  |  | 150 | °C |  | 3 |
| Lead Temperature |  |  |  | 260 | °C |  | 3 |
| Storage Temperature |  | -65 |  | 150 | °C |  | 3 |
| Thermal Resistance junction-to-ambient, SOT89-3 | θJA |  |  | 80 | °C/W | SOT89-3 package | 3 |
| Thermal Resistance junction-to-case, SOT89-3 | θJC |  |  | 25 | °C/W | SOT89-3 package | 3 |
| LEDN voltage (recommended) |  |  |  | 100 | V | printed as '< 100' (strict upper bound) | 3 |
| Junction Temperature (TJ) | TJ |  |  | 125 | °C |  | 3 |
| Under point VLEDN | VLEDN | 0.8 |  | 1.2 | V |  | 3 |
| Power consumption, SOT89-3 |  |  |  | 650 | mW | SOT89-3 package | 3 |

## CAD (KiCad official)

- Symbol: `DIO8242CTC3`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `dio8242ctc3-etched.step` / `dio8242ctc3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dio8242ctc3.step` / `dio8242ctc3.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [DIOO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590225841671344128) (9 pp, sha256 `6e68a99f6d2f072d`, retrieved 2026-10-18, tier: lcsc)
- **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/dio8242ctc3-datasheet.pdf)