CN5711

@@ -0,0 +1,48 @@+# CN5711++**ShangHai Consonance Elec** · LED Drivers · ESOP-8++CN5711 from ShangHai Consonance Elec, in a ESOP-8. 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 | ISET | input | LED current setting pin. A resistor RISET between ISET and GND programs the LED constant current: ILED [A] = 1800V / RISET [ohm]. RISET maximum value is 30 kOhm. Keep resistor close to the pin and minimize parasitic capacitance. |+| 2 | GND | power_in | Negative terminal of the power supply (ground return). |+| 3 | VCC | power_in | Positive terminal of power supply, 2.8V to 6V (absolute max 6.5V). Powers the internal circuitry. Pins 3 and 4 are internally connected and must be tied together at the input supply. |+| 4 | VCC | power_in | Positive terminal of power supply, 2.8V to 6V (absolute max 6.5V). Pins 3 and 4 are internally connected and must be tied together at the input supply. |+| 5 | LED | output | LED anode drive pin (regulated current output). The internal power MOSFET sources up to 1.5A of constant current out of this pin into the LED anode. Pins 5 and 6 are internally connected and should be tied together for full current handling. Low dropout: 0.37V @ 1.5A. |+| 6 | LED | output | LED anode drive pin (regulated current output). Pins 5 and 6 are internally connected and should be tied together for full current handling. |+| 7 | NC | unconnected | No connection. Leave floating. |+| 8 | CE | input | Chip Enable input (TTL/CMOS compatible). High (>= 2.3V) enables normal operation; low (<= 0.6V) puts the device into shutdown (IVCC2 <= 1uA). Can also be driven with a PWM signal (<2 kHz) for LED dimming. |+| 9 | EP | power_in | Exposed thermal pad on the backside of the eSOP-8 package. Must be soldered to the PC board ground for proper thermal dissipation; failure to make good thermal contact increases thermal resistance and reduces maximum LED current. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ShangHai Consonance Elec |+| Package | ESOP-8 |+| Category | LED-drv |+| Pins | 9 |++## Ordering variants++- `CN5711`++## CAD (KiCad official)++- Symbol: `CN5711`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ShangHai Consonance Elec datasheet](docs/cn5711-datasheet.pdf) (8 pp, sha256 `10de32b230a8c101`, 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/cn5711-datasheet.pdf)

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