component
MT9284-28J
Public Made by Adomby adom
Aerosemi LED Drivers, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+48@@ -0,0 +1,48 @@+# MT9284-28J++**Aerosemi** · LED Drivers · SOT-23-6++MT9284-28J from Aerosemi, 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 | SW | output | Switch node. Drain of the integrated N-channel power MOSFET; connects to the switched side of the external boost inductor and to the anode of the external Schottky diode. Rated up to 30V absolute max; SW is high impedance during shutdown. On-resistance is 0.5Ω typical with a 1.5A peak current limit. |+| 2 | GND | power_in | Device ground and power return for the internal NMOS source. Should be tied to a strong ground plane for heat sinking and noise protection, with input/output ceramic capacitors returned close to this pin. |+| 3 | FB | input | Current-sense feedback input. Connect a sense resistor from FB to GND to program the LED current; the loop regulates VFB to 104mV typical (94-114mV), giving ILED = VFB / RCS. Absolute maximum -0.3V to 6V. |+| 4 | EN | input | Enable and PWM dimming input. Pull above 1.5V to enable the IC; below 0.4V shuts it down (<1µA). Accepts a 20kHz to 1MHz unfiltered PWM dimming signal to produce an average LED current proportional to the duty cycle. Absolute maximum -0.3V to 6V; leakage ±1µA max. |+| 5 | OV | input | Output overvoltage sense input. Connect to VOUT at the top of the LED string; the MT9284 turns off the internal NMOS when VOV exceeds 28V (typical), protecting against open-LED conditions. |+| 6 | VIN | power_in | Power supply input, 2.5V to 5.5V operating range (6V absolute max). Must be closely decoupled to GND with a 1µF or larger ceramic capacitor (4.7µF X5R/X7R recommended). Under-voltage lockout trips at 2.2V typical with 100mV hysteresis. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Aerosemi |+| Package | SOT-23-6 |+| Category | LED-drv |+| Pins | 6 |++## Ordering variants++- `MT9284-28J`+- `MT9284-28JMT9284AS6`+- `MT9284-28JMT9284BS6`+- `MT9284-28JMT9284CS6`++## CAD (KiCad official)++- Symbol: `MT9284-28J`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Aerosemi datasheet](docs/mt9284-28j-datasheet.pdf) (10 pp, sha256 `12c2a380fdd2a887`, 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/mt9284-28j-datasheet.pdf)
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