component
AL5871QT16E-13
Public Made by Adomby adom
Diodes Incorporated LED Drivers, TSSOP-16-EP. 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
markdownAL5871QT16E-13
Diodes Incorporated · LED Drivers · TSSOP-16-EP
AL5871QT16E-13 from Diodes Incorporated, in a TSSOP-16-EP. 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 for the LED driver, 5V to 55V recommended operating range (65V absolute maximum). |
| 2 | NC | unconnected | No connection. |
| 3 | PWM | input | PWM signal input, internally pulled down; high above 1.4V enables, low below 0.4V disables, and standby is entered after PWM stays low about 25ms. |
| 4 | NC | unconnected | No connection. |
| 5 | NC | unconnected | No connection. |
| 6 | GND | power_in | Ground for the LED driver. |
| 7 | NC | unconnected | No connection. |
| 8 | NC | unconnected | No connection. |
| 9 | NC | unconnected | No connection. |
| 10 | NC | unconnected | No connection. |
| 11 | LED | passive | Connect to the LED string cathode; current sink regulating up to 750mA, rated -0.3V to 65V. |
| 12 | NC | unconnected | No connection. |
| 13 | DEN | input | Enable for LED open-circuit detection (enabled above 1.2V, disabled below 1.1V) and thermal fold-back (enabled above 0.3V, disabled below 0.2V). |
| 14 | REF | passive | Reference current setting pin; a resistor RREF to ground sets LED current (ILED = 12000 x VREF/RREF, 24kΩ gives 750mA). |
| 15 | ADIM | input | Analog dimming input, driven with DC voltage 0.3V to 1.5V; LED current shuts off below 0.15V. |
| 16 | FAULTB | bidirectional | Open-drain fault report asserted low on UVLO, OTP, LED open or LED short conditions, with internal pullup and input detection for bus sharing. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | TSSOP-16-EP |
| Category | LED Drivers |
| Pins | 17 |
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 UVLO Voltage | VVIN_UVLO | 4.75 | 5 | 5.25 | V | VVIN Rising | 4 |
| PWM Logic Low Voltage | VIL_PWM | 0.4 | V | 4 | |||
| PWM Logic High Voltage | VIH_PWM | 1.4 | V | 4 | |||
| PWM Internal Pulldown | IPWM_PD | 0.35 | 3.5 | μA | VPWM = 5V | 4 | |
| Entrance Time for Standby Mode When PWM is Low | tPWM_SHDN | 15 | 25 | ms | 4 | ||
| Voltage Range on ADIM Pin For Analog Dimming | VADIM | 0.3 | 1.5 | V | 4 | ||
| DC Voltage on ADIM Pin for Analog Dimming On | VADIM_ON | 0.35 | V | VADIM Rising | 4 | ||
| DC Voltage on ADIM Pin for Analog Dimming Off | VADIM_OFF | 0.15 | V | VADIM Falling | 4 | ||
| ADIM Sourcing Current | IADIM | 19 | 20 | 22 | µA | 4 | |
| Base Reference Voltage | VREF | 1.47 | 1.5 | 1.53 | V | 4 | |
| LED Pin Leakage Current | ILED_LEAK | 0.1 | 5 | μA | VPWM = 0V, VLED = 12V | 4 | |
| LED Current Accuracy | ILED_ACCURACY | -4 | 4 | % | RREF = 48kΩ | 4 | |
| FAULTB Output Low Voltage | VFOL | 600 | mV | IFAULTB = 1mA | 4 | ||
| FAULTB Leakage Current | IF_LKG | 5 | μA | VFAULTB = 5V | 4 | ||
| VIN UVLO Hysteresis | VVIN_UVLO_HYS | 300 | mV | VVIN Falling | 4 | ||
| Input Current in Standby Mode | IVIN_Standby | 300 | µA | Standby Mode, PWM is “L” for 7ms | 4 | ||
| Input Current in Normal Mode | IDVCC_Q | 0.7 | mA | Enabled, LED Pin Floating, PWM is “H”, RSET is 48kΩ | 4 | ||
| Regulation Current | ILED_NOM | 375 | mA | RREF = 48kΩ | 4 | ||
| Minimum LED Regulation Voltage | VLED_REG | 0.2 | V | ILED = 125mA | 4 | ||
| FAULTB Pullup Current | IF_PULLUP | 500 | μA | VFAULTB = 1.6V | 4 | ||
| FAULTB Pullup Voltage | VF_PULLUP | 3 | V | Fault Pin Floating | 4 | ||
| Thermal Shutdown Threshold | TSHDN | 160 | ℃ | 4 | |||
| Thermal Recovery Threshold | TREC | 130 | ℃ | 4 | |||
| Input Voltage Relative to GND | VVIN | 5 | 55 | V | 3 | ||
| PWM Frequency | fPWM | 0.2 | 1 | kHz | 3 | ||
| LED Output Current | ILED | 0 | 750 | mA | 3 | ||
| High-Level Input Voltage on PWM | VIH | 1.4 | 5.5 | V | 3 | ||
| Low-Level Input Voltage on PWM | VIL | 0 | 0.4 | V | 3 | ||
| Operating Junction Temperature | TJ | -40 | 150 | °C | 3 | ||
| Operating Ambient Temperature | TA | -40 | 125 | °C | 3 | ||
| Input Voltage Relative to GND | VVIN | -0.3 | 65 | V | 3 | ||
| LED, DEN, PWM and FAULTB Voltage Relative to GND | VLED, VDEN, VPWM, VFAULTB | -0.3 | 65 | V | 3 | ||
| REF and ADIM Voltage Relative to GND | VREF, VADIM | -0.3 | 6 | V | 3 | ||
| Operating Junction Temperature | TJ | -40 | 150 | °C | 3 | ||
| Storage Temperature | TST | -55 | 150 | °C | 3 | ||
| Human-Body Model (HBM) | 2000 | V | 3 | ||||
| Charged-Device Model (CDM) | 1000 | V | 3 | ||||
| Junction-to-Ambient Thermal Resistance | θJA | 42.7 | °C/W | Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane | 3 | ||
| Junction-to-Case (Top) Thermal Resistance | θJC | 3.4 | °C/W | Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane | 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 | tin | Terminals: Finish, Matte Tin Plated Leads, Solderable per JESD22-B102 Weight: 0.055 grams (Approximate) | 14 |
CAD (KiCad official)
- Symbol:
AL5871QT16E-13 - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: TSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files:
al5871qt16e-13-etched.step/al5871qt16e-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);al5871qt16e-13.step/al5871qt16e-13.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (15 pp, sha256
7c0ad244f9a165ff, retrieved 2026-10-26, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).