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DX7003
Public Made by Adomby adom
Dersem LED Drivers, SOP-8. 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
markdownDX7003
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dx7003.step/dx7003.glbare 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, 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).