component
DX7000
Public Made by Adomby adom
Dersem LED Drivers, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownDX7000
Dersem · LED Drivers · SOT-23-6
DX7000 from Dersem, in a SOT-23-6. 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 | CS | input | Current-sense input that the internal error amplifier compares against the 0.2 V reference, with an overcurrent threshold of 216-264 mV at VDD = 5 V and an absolute maximum of -0.3 to 7.0 V. |
| 2 | GND | power_in | Ground reference; the VDD bypass capacitor ground should be tied to the CS sense-resistor ground at a single point on the PCB. |
| 3 | VDD | power_in | Chip supply pin, clamped at about 5.0 V (5.0 V typical clamp, 25 mA clamp current) with an absolute maximum of -0.3 to 7.0 V, and it needs a bypass capacitor of at least 0.47 µF placed next to the pin. |
| 4 | LD | input | Mode-select and analog/segmented dimming input: floating selects full brightness, a pull-up above VDD by 1 V selects half current, 0.2-1.2 V sets analog dimming with output off below 0.2 V, and the absolute maximum is -0.3 to 7.0 V. |
| 5 | PWM | input | PWM dimming input where high enables the output and low disables it, with rising threshold 1.4 V and falling threshold 0.8 V typical, supports pulse widths down to 60 ns, floats high by default, and has an absolute maximum of -0.3 to 7.0 V. |
| 6 | GATE | output | Gate drive output for the external NMOS power switch (up to 50 N per the feature list); the datasheet gives no separate voltage or current limit for this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Dersem |
| Package | SOT-23-6 |
| Category | LED Drivers |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Chip supply voltage (芯片工作电源) | VDD | -0.3 | 7 | V | 2 | ||
| CS input voltage (CS 输入电压) | VCS | -0.3 | 7 | V | 2 | ||
| PWM input voltage (PWM 输入电压) | VPWM | -0.3 | 7 | V | 2 | ||
| Analog or step dimming input voltage (模拟或分档调光输入电压) | VLD | -0.3 | 7 | V | 2 | ||
| Operating temperature (工作温度) | TA | -20 | 125 | ℃ | 2 | ||
| Storage temperature (存储温度) | TSTG | -40 | 150 | ℃ | 2 | ||
| Human body model ESD rating (人体放电模式) | HBM | 2 | KV | 2 | |||
| System maximum operating frequency (系统最大工作频率) | OSC_MAX | 1000 | KHz | 3 | |||
| System minimum operating frequency (系统最小工作频率) | OSC_MIN | 30 | K | 3 | |||
| Overcurrent detection threshold (过流判断阈值) | Vcs | 216 | 264 | mV | VDD=5V | 3 | |
| Operating current (工作电流) | IDD | 1 | mA | VDD=5V, GATE floating | 3 | ||
| VDD clamp voltage (VDD 钳位电压) | VDDclamp | 5 | V | 3 | |||
| VDD clamp current (VDD 钳位电流) | IDDclamp | 25 | mA | 3 | |||
| Constant-current control voltage (恒流控制电压) | VREF | 200 | mV | VDD=5V | 3 | ||
| LEB time (LEB 时间) | TLEB | 120 | nS | 3 | |||
| Maximum duty cycle (最大占空比) | DMAX | 100 | % | 3 | |||
| PWM dimming detect threshold upper limit (PWM 调光检测阈值上限) | VPWM_H | 1.4 | V | PWM rising | 3 | ||
| PWM dimming detect threshold lower limit (PWM 调光检测阈值下限) | VDIM_L | 0.8 | V | PWM falling | 3 | ||
| Analog dimming start threshold upper limit (模拟调光起始阈值上限) | VLD_H | 1.2 | V | 3 | |||
| Analog dimming start threshold lower limit (模拟调光起始阈值下限) | VLD_L | 0.2 | V | 3 | |||
| Step dimming pull-down current (分档调光下拉电流) | ILD_F | 20 | uA | 3 | |||
| Over-temperature protection threshold (过温保护阈值) | Tovt | 140 | ℃ | 过温降电流的方式 (current reduction mode) | 3 |
CAD (KiCad official)
- Symbol:
DX7000 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
dx7000-etched.step/dx7000-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dx7000.step/dx7000.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Dersem datasheet (12 pp, sha256
f80278b4dd885a26, 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).