component
AL1793AFE-13
Public Made by Adomby adom
Diodes Incorporated LED Drivers, UDFN-14-EP(4x3). 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
markdownAL1793AFE-13
Diodes Incorporated · LED Drivers · UDFN-14-EP(4x3)
AL1793AFE-13 from Diodes Incorporated, in a UDFN-14-EP(4x3). 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 | EN | input | Active-high enable, internally pulled down; the device is enabled above about 2.5 V and disabled below 0.4 V (VIH min 2.5 V, VIL max 0.4 V). |
| 2 | PWM4/GND | power_in | For the AL1793 this pin is GND (PWM4 is not applicable to the AL1793, which has three channels). |
| 3 | PWM3/GND | input | PWM signal input for channel 3 on the AL1793, internally pulled down; VIH min 2.5 V, VIL max 0.3 V, absolute maximum 7 V. |
| 4 | PWM2/GND | input | PWM signal input for channel 2 on the AL1793, internally pulled down; VIH min 2.5 V, VIL max 0.3 V, absolute maximum 7 V. |
| 5 | PWM1 | input | PWM signal input for channel 1, internally pulled down; tie to GND when channel 1 is not used. Digital PWM frequency 0.5 to 4 kHz, minimum on-time 2.5 µs; analog dimming 0.4 V to 1.5 V. |
| 6 | LED1 | output | Channel 1 LED cathode (current sink); regulated current up to 500 mA via RSET, with LED short protection at a 6 V threshold. |
| 7 | LED2/GND | output | Channel 2 LED cathode (current sink) for the AL1793; not GND on this variant. |
| 8 | GND | power_in | Ground. |
| 9 | LED3/GND | output | Channel 3 LED cathode (current sink) for the AL1793; not GND on this variant. |
| 10 | LED4/GND | power_in | For the AL1793 this pin is GND (channel 4 is not applicable to the AL1793). |
| 11 | LEDPG | output | LED power-good indication, asserted low to report insufficient LED headroom; requires an external pull-up resistor (open-drain style). |
| 12 | FAULTB | output | Fault report, asserted low for LED open/short, over-temperature or UVLO; open-drain output that requires an external pull-up resistor; FAULTB leakage max 1 µA at 6 V, low-level max 180 mV at 1 mA. |
| 13 | REF | passive | Reference current setting through an external resistor RSET (VREF 1.5 V typical; IREF 0.125 mA at RSET = 12 kΩ). |
| 14 | VIN | power_in | Supply input, 6.5 V to 30 V recommended operating range; UVLO releases at 6.3 V rising with 300 mV hysteresis. |
| 15 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | UDFN-14-EP(4x3) |
| Category | LED Drivers |
| Pins | 15 |
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 (ESD HBM, Human Body Model ESD Protection) | ESD | 4000 | V | 7 | |||
| Input Voltage (ESD CDM, Charged Device Model ESD Protection) | ESD | 1000 | V | 7 | |||
| Input Voltage | VIN | 30 | V | 7 | |||
| Enable Voltage, PWM Voltage | VEN, VPWMx | 7 | V | 7 | |||
| Maximum Junction Temperature | TJ(MAX) | 160 | °C | 7 | |||
| Storage Temperature Range | TST | -65 | 150 | °C | 7 | ||
| Input voltage at VIN | VIN | 6.5 | 30 | V | 7 | ||
| Operating Ambient Temperature | TA | -40 | 125 | C | 7 | ||
| High-Level Input Voltage on EN and PWMx | VIH | 2.5 | 5.5 | V | 7 | ||
| Low-Level Input Voltage on EN and PWMx | VIL | 0 | 0.4 | V | 7 | ||
| EN Low Voltage | VIL(EN) | 0 | 0.4 | V | 8 | ||
| EN High Voltage | VIH(EN) | 2.5 | V | 8 | |||
| EN Internal Pulldown | I(EN-PD) | 0.35 | 3.5 | μA | VEN=5V | 8 | |
| Digital PWM Low Voltage | VIL(PWMx) | 0.3 | V | 8 | |||
| Digital PWM High Voltage | VIH(PWMx) | 2.5 | V | 8 | |||
| Digital PWM Frequency | FPWMx | 0.5 | 4 | KHz | 8 | ||
| PWM Internal Pulldown | I(PWMx-PD) | 0.35 | 3.5 | μA | VEN=5V | 8 | |
| Reference Voltage | VREF | 1.47 | 1.5 | 1.53 | V | 8 | |
| LEDx Leakage Current | ILED_LEAK | 0.1 | 2 | μA | VPWMx=0V, VLEDx=+12V | 8 | |
| LED Current Accuracy | ILED_ACCURACY | -4 | 4 | % | RSET=12KΩ | 8 | |
| FAULTB Output Low Voltage | VFOL | 180 | mV | IFAULTB=1mA | 8 | ||
| FAULTB Leakage Current | IFOH | 1 | μA | VFAULTB=6V | 8 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 55 | °C/W | U-DFN4030-14 (Note 5) | 8 | ||
| Thermal Resistance Junction-to-Case | θJC | 12 | °C/W | U-DFN4030-14 (Note 5) | 8 |
CAD (KiCad official)
- Symbol:
AL1793AFE-13 - Footprint:
Package_DFN_QFN:DFN-14-1EP_3x4mm_P0.5mm_EP1.7x3.3mm - 3D model: UDFN-14-EP(4x3) (KiCad packages3D, STEP)
- 3D model files:
al1793afe-13-etched.step/al1793afe-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);al1793afe-13.step/al1793afe-13.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (18 pp, sha256
b00e0b817e901edf, retrieved 2026-10-19, 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).