# OB2009MP

**OB On Bright Elec** · LED Drivers · SOT-23-6

OB2009MP from OB On Bright Elec, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | input | System output voltage detection input. High-voltage tolerant up to 150V. Used for self-supply from the system output to improve efficiency. |
| 2 | GND | power_in | Device ground reference. |
| 3 | SDT | input | Vds falling-edge slope-sensing threshold adjust. Sources ~20uA (ISDT). Threshold selectable: open = 150ns, tied to GND = 120ns, RSDT=50k = 180ns. If not otherwise stated, leave floating. |
| 4 | VDD | power_in | Power supply pin. Recommended operating range 5.5V to 6.5V. Internally regulated (typ 5.5V/6.5V depending on VIN). UVLO enter ~3.3V, exit ~3.6V. Bypass with 1uF cap to GND. |
| 5 | GATE | output | Gate driver output for external N-channel SR MOSFET. Typical 1A source / 3A sink capability. VOH ≥ 6V @ VDD=6.5V; VOL ≤ 0.5V. Absolute max -0.6V to 12V. |
| 6 | VD | input | Drain-sense input; connect to the external N-channel SR MOSFET drain (no more than 50 ohm series resistor recommended between VD and MOS drain). High-voltage tolerant up to 150V. SR turn-on threshold Vth_SR_act ≈ -200mV; adjustable turn-off threshold via series Rd (0.2*Rd mV). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | OB On Bright Elec |
| Package | SOT-23-6 |
| Category | LED-drv |
| Pins | 6 |

## Ordering variants

Same part, different packaging or reel option.

- `OB2009MP`

## CAD (KiCad official)

- Symbol: `OB2009MP`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `ob2009mp-etched.step` / `ob2009mp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ob2009mp.step` / `ob2009mp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [OB On Bright Elec datasheet](docs/ob2009mp-datasheet.pdf) (11 pp, sha256 `32728c93f5588fe0`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ob2009mp-datasheet.pdf)