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DX2283E
Public Made by Adomby adom
Dersem LED Drivers, ESOP-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
markdownDX2283E
Dersem · LED Drivers · ESOP-8
DX2283E from Dersem, in a ESOP-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 | DIM1 | input | Dimming input for channel 1 that accepts a PWM signal, with logic-high threshold VIH 2 V to 5.6 V and logic-low threshold VIL 0 V to 1.5 V; left floating, the OUT ports default to off. |
| 2 | REXT1 | passive | Output-current setting pin for channel 1, where IOUT1 = 0.6 V / R1 with R1 connected from this pin, and the pin voltage is limited to -0.5 V to 8 V. |
| 3 | DIM2 | input | Dimming input for channel 2 that accepts a PWM signal, with logic-high threshold VIH 2 V to 5.6 V and logic-low threshold VIL 0 V to 1.5 V; left floating, the OUT ports default to off. |
| 4 | REXT2 | passive | Output-current setting pin for channel 2, where IOUT2 = 0.6 V / R2 with R2 connected from this pin, and the pin voltage is limited to -0.5 V to 8 V. |
| 5 | OUT2 | output | Constant-current output for channel 2, rated up to 120 mA with an OUT port voltage limit of -0.5 V to 500 V and a minimum constant-current knee voltage VOUT_MIN of 6.5 V at 30 mA. |
| 6 | OUT1 | output | Constant-current output for channel 1, rated up to 120 mA with an OUT port voltage limit of -0.5 V to 500 V and a minimum constant-current knee voltage VOUT_MIN of 6.5 V at 30 mA. |
| 7 | NC | unconnected | No-connect pin, left floating ('悬空脚'). |
| 8 | VIN | power_in | Power supply input, with an absolute maximum rating of -0.5 V to 500 V and a breakdown rating of 500 V. |
| 9 | GND | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Dersem |
| Package | ESOP-8 |
| 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 pin voltage | VIN | -0.5 | 500 | V | 3 | ||
| OUT pin voltage | VOUT | -0.5 | 500 | V | 3 | ||
| DIM pin voltage | VDIM | -0.5 | 8 | V | 3 | ||
| REXT pin voltage | VREXT | -0.5 | 8 | V | 3 | ||
| Operating junction temperature range | TJ | -40 | 150 | °C | 3 | ||
| Storage temperature | TSTG | -55 | 150 | °C | 3 | ||
| ESD, HBM (human body model) | VESD | 2 | KV | HBM | 3 | ||
| Power dissipation | PD | 1.25 | W | 3 | |||
| Thermal resistance, junction to ambient | RθJA | 65 | °C/W | TA=25°C, natural convection, JEDEC JESD51 single-layer test board | 3 | ||
| Constant-current knee voltage | VOUT_MIN | 6.5 | V | IOUT = 30mA | 3 | ||
| OUT port breakdown voltage | VOUT_BV | 500 | V | 3 | |||
| VIN port breakdown voltage | VIN_BV | 500 | V | 3 | |||
| OUT1, OUT2 output current | IOUT1、IOUT2 | 5 | 120 | mA | 3 | ||
| Quiescent current | IDD | 0.1 | 0.25 | 0.4 | mA | VIN=10V | 3 |
| REXT1 port voltage | VREXT1 | 0.57 | 0.6 | 0.63 | V | VIN=10V，VOUT1=10V | 3 |
| REXT2 port voltage | VREXT2 | 0.57 | 0.6 | 0.63 | V | VIN=10V，VOUT2=10V | 3 |
| DIM port pull-down current | I_DIM | 18 | 85 | uA | DIM=5V | 3 | |
| DIM input threshold voltage high | VIH | 2 | 5.6 | V | 3 | ||
| DIM input threshold voltage low | VIL | 0 | 1.5 | V | 3 | ||
| Dimming range | I_DDIM | 0 | 100 | % | 3 | ||
| Dimming frequency range | FOSC | 1 | 20 | KHz | 3 | ||
| Output current chip-to-chip deviation | DIOUT | -5 | 5 | % | IOUT=30mA | 3 | |
| Current negative temperature compensation start point | TSC | 130 | °C | 3 |
CAD (KiCad official)
- Symbol:
DX2283E - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
dx2283e-etched.step/dx2283e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dx2283e.step/dx2283e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Dersem datasheet (12 pp, sha256
2b54b237e56078a6, 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).