MT9284BS6

@@ -0,0 +1,48 @@+# MT9284BS6++**Aerosemi** · LED Drivers · SOT-23-6++MT9284BS6 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 | power_out | Switching node. Drain of the internal N-channel power MOSFET; connect to the switched side of the external boost inductor and the anode of the external Schottky diode. Absolute maximum 30V; high-impedance during shutdown. |+| 2 | GND | power_in | Device ground. Return for the internal power MOSFET source, control circuitry, and current-sense resistor RCS. Connect to a strong ground plane for heat sinking and noise protection. |+| 3 | FB | input | Current-sense feedback input. Regulated to VFB = 250mV (typ, MT9284BS6). Connect an external sense resistor RCS = VFB/ILED from FB to GND to program the LED current; the LED string return current flows through RCS. |+| 4 | EN | input | Enable / PWM dimming input. Pull above 1.5V to enable the IC; below 0.4V shuts the part down (<1µA). Accepts a 20kHz-1MHz PWM dimming signal whose duty cycle sets the average LED current. EN leakage ±1µA max; absolute max 6V. |+| 5 | OV | input | Over-voltage sense input. Monitors the boost output at the top of the LED string; when VOUT (as sensed on OV) rises past ~28V the internal NMOS is turned off, protecting the part against an open-LED fault. |+| 6 | VIN | power_in | Power supply input, 2.5V-5.5V operating range (absolute max 6V). Powers the control circuitry and, through the external inductor, the boost stage. Must be decoupled to GND with a 1µF (or greater) low-ESR ceramic capacitor placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Aerosemi |+| Package | SOT-23-6 |+| Category | LED-drv |+| Pins | 6 |++## Ordering variants++- `MT9284BS6BS6`+- `MT9284BS6-28J`+- `MT9284BS6AS6`+- `MT9284BS6CS6`++## CAD (KiCad official)++- Symbol: `MT9284BS6`+- 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/mt9284bs6-datasheet.pdf) (10 pp, sha256 `160f453af9ad4b55`, 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/mt9284bs6-datasheet.pdf)

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