component
KP18055ESPA
Public Made by Adomby adom
Kiwi Instruments LED Drivers, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownKP18055ESPA
Kiwi Instruments · LED Drivers · SOP-8-EP
KP18055ESPA from Kiwi Instruments, in a SOP-8-EP. 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 | PWM1 | input | Channel 1 digital PWM dimming input; when left floating the default state is full output current, and the PWM high and low levels are specified as VPWMH 2.5 V and VPWML 0.5 V. |
| 2 | CS1 | output | Channel 1 output current sense pin, where an external sense resistor Rcs sets the LED1 current; the CS voltage absolute maximum is -0.3 to 7 V. |
| 3 | PWM2 | input | Channel 2 digital PWM dimming input; when left floating the default state is full output current, and grounding it reduces the chip current to 0; the PWM voltage absolute maximum is -0.3 to 7 V. |
| 4 | CS2 | output | Channel 2 output current sense pin, where an external sense resistor Rcs sets the LED2 current; the CS voltage absolute maximum is -0.3 to 7 V. |
| 5 | LED2 | input | Connects to the negative terminal of LED2; the LED pin voltage absolute maximum is -0.5 to 500 V. |
| 6 | LED1 | input | Connects to the negative terminal of LED1; the LED pin voltage absolute maximum is -0.5 to 500 V. |
| 7 | NC | unconnected | No connection; the pin is left floating in the application. |
| 8 | Vin | power_in | Chip supply pin connected to the bus voltage, with a start-up threshold of 8 V, shut-off threshold of 7.7 V, and an absolute maximum of -0.5 to 700 V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Kiwi Instruments |
| Package | SOP-8-EP |
| Category | LED Drivers |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Vin voltage | -0.5 | 700 | V | 3 | |||
| LED voltage | -0.5 | 500 | V | 3 | |||
| PWM, CS voltage | -0.3 | 7 | V | 3 | |||
| Power dissipation | 1.5 | W | TA=50°C | 3 | |||
| Chip operating junction temperature | -40 | 150 | °C | 3 | |||
| Storage temperature | -65 | 150 | °C | 3 | |||
| Pin temperature (soldering 10 s) | 260 | °C | soldering 10 s | 3 | |||
| ESD capability (human body model) | 2 | kV | human body model | 3 | |||
| Recommended operating junction temperature | -40 | 125 | °C | 3 | |||
| Quiescent current | IQ | 240 | 300 | 400 | μA | 100% PWM | 3 |
| Standby quiescent current | ISTB | 44 | 54 | 72 | μA | PWM=0 | 3 |
| Reference voltage 1 | VREF1 | 630 | 650 | 670 | mV | 100% duty | 3 |
| Reference voltage 2 | VREF2 | 16.5 | 19.5 | 22.5 | mV | 3% duty | 3 |
| Dimming frequency | fDIM | 540 | 600 | 660 | Hz | 4 | |
| Over-temperature protection point | TOTP | 146 | 150 | 154 | °C | 4 | |
| VIN start-up voltage | VIN_ON | 8 | V | 3 | |||
| VIN shut-off voltage | VIN_OFF | 7.7 | V | 3 | |||
| PWM signal high level | VPWMH | 2.5 | V | 3 | |||
| PWM signal low level | VPWML | 0.5 | V | 3 | |||
| Dimming-off delay | TDIM_off | 6 | ms | 3 | |||
| DIM on minimum pulse width | PWon | 1 | μs | 4 | |||
| High-voltage MOSFET breakdown voltage | VBR | 500 | V | Id=250μA | 4 | ||
| MOSFET saturation current | ISAT | 120 | mA | 4 | |||
| Junction-to-ambient thermal resistance | 65 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
KP18055ESPA - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
kp18055espa-etched.step/kp18055espa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kp18055espa.step/kp18055espa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Kiwi Instruments datasheet (5 pp, sha256
150a676fd2f47398, retrieved 2026-10-18, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).