# CN5815

**ShangHai Consonance Elec** · LED Drivers · SSOP-10-150mil

CN5815 from ShangHai Consonance Elec, in a SSOP-10-150mil. 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 | OVP | input | Overvoltage-protection input: DRV is forced low when OVP rises above 1.205 V (typ) and normal operation resumes only after OVP falls below 1.151 V (typ). |
| 2 | FB | input | LED current feedback input; the sense resistor from FB to GND sets the LED current, with the FB reference voltage specified at 108 mV to 132 mV (120 mV typ). |
| 3 | COMP | passive | Loop frequency-compensation pin; the compensation network (C1, C2, R3 in the reference design) is connected between this pin and GND. |
| 4 | DIM | input | PWM dimming input: a low level shuts off PWM modulation and forces DRV low, a high level (VIH 2.0 V min, VIL 0.6 V max) enables LED switching, and the PWM dimming frequency should be 30 kHz to 100 kHz. |
| 5 | SHDN | input | Active-high shutdown input: above 2.3 V (VIH) puts the chip into shutdown with all internal blocks including the 5 V regulator disabled, and below 0.5 V (VIL) enables normal operation. |
| 6 | VIN | power_in | Input supply pin, rated for 4.5 V to 32 V operation (absolute maximum 36 V), which requires a filter capacitor to GND. |
| 7 | VCC | power_out | Internal 5 V regulator output that requires a 4.7 µF or 10 µF capacitor to GND, regulates to 5 V for VIN between 5.5 V and 32 V, and supplies at most 4 mA and is not recommended for powering external circuits. |
| 8 | DRV | output | Gate-drive output for the external N-channel MOSFET, swinging to 5 V high with source current up to 0.8 A and sink current up to 1.5 A. |
| 9 | GND | power_in | Ground and negative input-supply return; the power ground should be kept separate from the analog/signal ground per the PCB guidance. |
| 10 | ISW | input | Inductor current sense input used for peak current control and cycle-by-cycle overcurrent protection, with the overcurrent threshold at 170 mV to 190 mV (180 mV typ) measured on this pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ShangHai Consonance Elec |
| Package | SSOP-10-150mil |
| Category | LED Drivers |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `CN5815`
- Footprint: `Package_SO:SSOP-10_3.9x4.9mm_P1.00mm`
- 3D model: SSOP-10-150mil (KiCad packages3D, STEP)
- 3D model files: `cn5815-etched.step` / `cn5815-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cn5815.step` / `cn5815.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ShangHai Consonance Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917306881675264) (11 pp, sha256 `28389d74ce8af96a`, retrieved 2026-10-09, 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:** 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/cn5815-datasheet.pdf)