CN5611

@@ -0,0 +1,41 @@+# CN5611++**ShangHai Consonance Elec** · LED Drivers · SOT-89-5++CN5611 from ShangHai Consonance Elec, in a SOT-89-5. 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 | VDD | power_in | Positive supply input, 2.7V to 6V. Also powers the internal control circuitry. Absolute maximum pin voltage -0.3V to 6.5V. |+| 2 | GND | power_in | Ground / power return. Should be tied to a large copper pour for thermal dissipation. |+| 3 | LED | output | LED cathode connection. Internal power transistor sinks the regulated constant current (up to 800mA) from the LED cathode to GND. Dropout voltage ~135mV at 200mA, ~410mV at 700mA. |+| 4 | ISET | input | Constant LED current setting pin. Connect a resistor R_ISET between ISET and VDD; I_LED = 910V / R_ISET (e.g. 4.55kΩ sets 200mA). 1% metal-film resistor recommended. |+| 5 | NC | unconnected | No internal connection. Leave floating or tie to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ShangHai Consonance Elec |+| Package | SOT-89-5 |+| Category | LED-drv |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `CN5611`+- Footprint: `Package_TO_SOT_SMD:SOT-89-5`+- 3D model: SOT-89-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ShangHai Consonance Elec datasheet](docs/cn5611-datasheet.pdf) (8 pp, sha256 `2fadadd407e8a63b`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/cn5611-datasheet.pdf)

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