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DX7003

Public Made by Adom

by adom

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

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DX7003

Dersem · LED Drivers · SOP-8

DX7003 from Dersem, in a SOP-8. 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 LD input Analog/segmented dimming input: floating selects full brightness, a pull-up above VDD by 1V selects half-current mode, 0.2-1.2V sets analog dimming, and below 0.2V turns the output off (absolute max -0.3 to 7.0 V).
2 PWM input PWM dimming input: high enables the output and low turns it off, with pulses down to 60 ns supported and absolute max -0.3 to 7.0 V; it defaults high when left floating.
3 VDD power_in Chip supply pin that is clamped to about 5.0 V, with an absolute max of 7.0 V, and needs a bypass capacitor of 1.0 uF or more placed close to the pin.
4 CS input Current-sense input connected to the source of the internal power MOSFET, where the sense threshold is 216-264 mV at VDD = 5 V and the absolute max is -0.3 to 7.0 V.
5 D output Drain of the internal power MOSFET and a heat-sink pin that must be thermally managed (absolute max 60 V per the input rating).
6 D output Drain of the internal power MOSFET and a heat-sink pin that must be thermally managed; it is tied to the same drain net as pin 5.
7 GND power_in Chip ground.
8 GND power_in Chip ground.

Key specifications

Parameter Value
Manufacturer Dersem
Package SOP-8
Category LED Drivers
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VDD chip supply voltage VDD -0.3 7 V 2
CS input voltage VCS -0.3 7 V 2
PWM input voltage VPWM -0.3 7 V 2
Analog or step dimming input voltage VLD -0.3 7 V 2
Operating temperature TA -40 125 ℃ 2
Storage temperature TSTG -40 150 ℃ 2
ESD human body model HBM 2 KV Human body model; printed as '>2 KV' 2
CS over-current threshold Vcs 216 264 mV VDD=5V 3
VDD clamp current IDDclamp 25 mA 3
System maximum operating frequency OSC_MAX 1000 KHz 3
System minimum operating frequency OSC_MIN 30 50 K 3
Maximum duty cycle DMAX 100 % 4
PWM dimming upper detection threshold VLD_H 1.2 V Analog dimming start threshold upper limit 4
PWM dimming lower detection threshold VLD_L 0.2 V Analog dimming start threshold lower limit 4
Input voltage (wide input range) 5 60 V From features list: wide input voltage 1

CAD (KiCad official)

  • Symbol: DX7003
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: dx7003-etched.step / dx7003-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dx7003.step / dx7003.glb are the bare package body.

Provenance

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

  • Datasheet: Dersem datasheet (13 pp, sha256 4b4814cd39ac60ec, retrieved 2026-10-17, 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: 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