component
AL5801W6-7
Public Made by Adomby adom
Diodes Incorporated LED Drivers, SOT-26. 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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Contents
README
markdownAL5801W6-7
Diodes Incorporated · LED Drivers · SOT-26
AL5801W6-7 from Diodes Incorporated, in a SOT-26. 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 | BIAS | input | Biases the open-drain output MOSFET and carries the PWM dimming drive, with a 0.1mA bias current set by RBIAS = (VCC - 3.75V) / 0.1mA and a supply range of 3.5V to 20V. |
| 2 | FB | input | Feedback pin whose reference voltage is VRSET = 0.56V at +25°C, with an absolute maximum of 6V relative to GND. |
| 3 | OUT | output | Open-drain LED driver output rated 100V absolute maximum, operating from 1.1V to 100V and sinking up to 350mA. |
| 4 | REXT | passive | Current sense pin; the LED current sensing resistor connects from this pin to GND, with an absolute maximum of 6V relative to GND. |
| 5 | COMP | passive | Compensation pin, connected to REXT with a 1nF ceramic capacitor from COMP to FB for improved transient stability, with an absolute maximum of 6V relative to GND. |
| 6 | GND | power_in | Ground reference point for setting the LED current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-26 |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Breakdown Voltage | BVDSS | 100 | V | VGS = 0V, ID = 250µA | 3 | ||
| Zero Gate Voltage Drain Current | IDSS | 1 | µA | VDS = 60V, VGS = 0V | 3 | ||
| Gate-Source Leakage | IGSS | -100 | 100 | nA | VGS = ±20V, VDS = 0V | 3 | |
| Gate Threshold Voltage | VGS(th) | 2 | 4.1 | V | VDS = VGS, ID = 250µA | 3 | |
| Static Drain-Source On-Resistance | RDS (ON) | 0.85 | Ω | VGS = 10V, ID = 1.5A | 3 | ||
| Static Drain-Source On-Resistance | RDS (ON) | 0.99 | Ω | VGS = 6V, ID = 1A | 3 | ||
| Diode Forward Voltage | VSD | 0.89 | 1.1 | V | VGS = 0V, IS = 1.5A | 3 | |
| Input Voltage (off) | VI(off) | 0.4 | V | VCC = 5V, IO = 100μA | 4 | ||
| Input Voltage (on) | VI(on) | 1.5 | V | VCC = 0.3V, IO = 5mA | 4 | ||
| Output Voltage (on) | VO(on) | 0.05 | 0.3 | V | IO/II = 5mA/0.25mA | 4 | |
| Output Current (off) | IO(off) | 0.5 | µA | VCC = 50V, VI = 0V | 4 | ||
| DC Current Gain | G1 | 80 | - | VO = 5V, IO = 10mA | 4 | ||
| Input Resistance | R1 | 3.2 | 4.7 | 6.2 | kΩ | 4 | |
| Resistance Ratio | R2/R1 | 8 | 10 | 12 | - | 4 | |
| BIAS voltage relative to GND | VBIAS | 20 | V | Note 4: with pins 5 and 6 connected together | 2 | ||
| Output voltage relative to GND | VOUT | 100 | V | 2 | |||
| FB voltage relative to GND | VFB | 6 | V | 2 | |||
| COMP voltage relative to GND | VCOMP | 6 | V | 2 | |||
| REXT voltage relative to GND | VREXT | 6 | V | 2 | |||
| Output current | IOUT | 350 | mA | 2 | |||
| Operating junction temperature | TJ | -40 | 150 | °C | 2 | ||
| Storage temperature | TST | -55 | 150 | °C | 2 | ||
| Supply voltage range | VBIAS | 3.5 | 20 | V | 3 | ||
| OUT voltage range | VOUT | 1.1 | 100 | V | 3 | ||
| LED pin current | ILED | 25 | 350 | mA | Note 9: subject to ambient temperature, power dissipation and PCB | 3 | |
| Operating ambient temperature range | TA | -40 | 125 | °C | 3 | ||
| Thermal Resistance, Junction to Ambient Air | RθJA | 165 | °C/W | Note 5: device mounted on 15mm x 15mm 2oz copper board, @ TA = +25°C | 3 | ||
| Thermal Resistance, Junction to Ambient Air | RθJA | 180 | °C/W | Note 6: device mounted on 25mm x 25mm 1oz copper board, @ TA = +25°C | 3 | ||
| Thermal Resistance, Junction to Ambient Air | RθJA | 145 | °C/W | Note 7: device mounted on 25mm x 25mm 2oz copper board, @ TA = +25°C | 3 | ||
| Thermal Resistance, Junction to Ambient Air | RθJA | 120 | °C/W | Note 8: device mounted on 50mm x 50mm 2oz copper board, @ TA = +25°C | 3 | ||
| Power Dissipation | PD | 0.75 | W | Note 5: device mounted on 15mm x 15mm 2oz copper board, @ TA = +25°C | 3 | ||
| Power Dissipation | PD | 0.7 | W | Note 6: device mounted on 25mm x 25mm 1oz copper board, @ TA = +25°C | 3 | ||
| Power Dissipation | PD | 0.85 | W | Note 7: device mounted on 25mm x 25mm 2oz copper board, @ TA = +25°C | 3 | ||
| Power Dissipation | PD | 1.05 | W | Note 8: device mounted on 50mm x 50mm 2oz copper board, @ TA = +25°C | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | • Low thermal impedance SOT26 package with copper lead | 1 |
CAD (KiCad official)
- Symbol:
AL5801W6-7 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-26 (KiCad packages3D, STEP)
- 3D model files:
al5801w6-7-etched.step/al5801w6-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);al5801w6-7.step/al5801w6-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (11 pp, sha256
26f9b3a43d4f2760, retrieved 2026-10-18, tier: lcsc) - 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).