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KP18055ESPA

Public Made by Adom

by adom

Kiwi Instruments LED Drivers, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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KP18055ESPA

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kp18055espa.step / kp18055espa.glb are 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, 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