component
AL8853S-13
Public Made by Adomby adom
Diodes Incorporated LED Drivers, SO-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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Contents
README
markdownAL8853S-13
Diodes Incorporated · LED Drivers · SO-8
AL8853S-13 from Diodes Incorporated, in a SO-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 | VIN | power_in | Power supply input for the controller, specified from 6V to 40V with absolute maximum of -0.3V to 43V and UVLO turn-on at 5.3V typical. |
| 2 | GATE | output | Gate drive output for the external boost power MOSFET, with a typical output voltage of 13V at VIN = 24V and absolute maximum of -0.3V to 43V. |
| 3 | GND | power_in | Ground reference for the controller and the external feedback and OVP dividers, which should be grounded close to the IC ground. |
| 4 | CS | input | Current sense input for peak current mode control and OCP, with absolute maximum of -0.3V to 7V and a latch-off if CS exceeds 1.2V typical for 17 consecutive cycles. |
| 5 | FB | input | LED current feedback input compared against the internal 200mV reference (±3%), with absolute maximum of -0.3V to 7V. |
| 6 | COMP | passive | Boost converter loop compensation node, where GATE latches off if COMP stays above 3.2V typical for 37ms, with absolute maximum of -0.3V to 7V. |
| 7 | OVP | input | Over voltage protection sense input that shuts the output down above 2.0V typical and triggers VOUT short protection below 0.2V typical, with absolute maximum of -0.3V to 43V. |
| 8 | PWM | input | PWM signal input for analog dimming and enable, operating from 5kHz to 50kHz with logic high above 2.5V and logic low below 1.2V, with absolute maximum of -0.3V to 7V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SO-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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 6 | 40 | V | 4 | ||
| Operating Supply Current | IOP | 2 | 3 | mA | VIN = 12V, VPWM = 5V, No Load | 4 | |
| Shutdown Supply Current | ISHDN | 130 | 180 | µA | PWM Low > 50ms, Sleep Mode | 4 | |
| Input UVLO Threshold | VUVLO | 4.9 | 5.3 | 5.7 | V | VIN Rising | 4 |
| Output Over Voltage Threshold Voltage | VOVP_OV | 1.9 | 2 | 2.1 | V | 4 | |
| Over Current Threshold Voltage | VCS_OCP | 255 | 300 | 345 | mV | Duty = 90% | 4 |
| CS High Protection Threshold | VCS_HIGH | 1.1 | 1.2 | 1.3 | V | Diode or Inductor Short | 4 |
| COMP High Protection Threshold | VCOMP_HIGH | 2.9 | 3.2 | 3.5 | V | FB Pin Short to GND | 4 |
| Oscillator Frequency | fOSC | 110 | 120 | 130 | kHz | 4 | |
| Maximum Duty Cycle | DMAX | 93 | 95 | 97 | % | 4 | |
| Feedback Reference Voltage | VFB | 194 | 200 | 206 | mV | Reference Voltage at Non-Inverting Input | 4 |
| PWM Duty | 0 | 100 | % | 4 | |||
| PWM Logic Input for Analog Dimming | VPWM_H | 2.5 | V | 4 | |||
| PWM Logic Input for Analog Dimming | VPWM_L | 1.2 | V | 4 | |||
| Recommended Input Voltage (VIN pin) | VIN | 6 | 40 | V | 3 | ||
| PWM Frequency for Analog Dimming | fPWM | 5 | 50 | kHz | 3 | ||
| Ambient Temperature | TA | -40 | 125 | °C | 3 | ||
| VIN, VGATE, VOVP Pin Voltage | VIN, VGATE, VOVP | -0.3 | 43 | V | 3 | ||
| CS, FB, COMP, PWM Pin Voltage | VCS, VFB, VCOMP, VPWM | -0.3 | 7 | V | 3 | ||
| Operating Junction Temperature | TJ | 150 | °C | 3 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Lead Temperature (Soldering) | TLEAD | 260 | °C | Soldering, 10s | 3 | ||
| Thermal Resistance (Junction to Ambient) | θJA | 105 | °C/W | Note 5: 1in x 1in FR-4, 2oz copper, minimum recommended pad layout | 3 | ||
| Thermal Resistance (Junction to Case) | θJC | 6.6 | °C/W | Note 5: 1in x 1in FR-4, 2oz copper, minimum recommended pad layout | 3 | ||
| ESD (Charge Device Model) | 750 | V | Charge Device Model | 3 | |||
| ESD (Human Body Model) | 2000 | V | Human Body Model | 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 |
|---|---|---|---|---|
| housing | Abs | , ESD (Human Body Model) 2000 V Notes: 4. Stresses greater than those listed under Absolute Maximum Ratings can cause permanent damage to the device. These are stress ratings only, and | 3 | |
| contacts | Copper | 5. For the compensation capacitor, it should be placed as close as possible to the COMP pin. 6. Copper area of the power loop, especially around the switching node, should be as big as possible for go | 12 |
CAD (KiCad official)
- Symbol:
AL8853S-13 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
al8853s-13-etched.step/al8853s-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);al8853s-13.step/al8853s-13.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (15 pp, sha256
89f7fbedb2a21848, retrieved 2026-10-17, 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).