8 Channels LED driver with direct switch control

The ALED8102S is a monolithic, low voltage, 8 low-side channels. The ALED8102S guarantees up to 20 V output driving capability allowing users to connect several LEDs in series. In the output stage, 8 regulated current sources provide from 5 mA to 100 mA constant current to drive the LEDs. Current is programmed though a single external resistor.The ALED8102S is equipped with a thermal management that protects the device forcing it in shutdown (typically: power-off at 170 °C with 15 °C hysteresis to restart). The thermal protection switches OFF the output channels only. The operative supply voltage range is between 3 V and 5.5 V. The output control is provided by four switch inputs, proving an on/off toggle action suitable also for local dimming. Moreover, on all active output LEDs brightness can be adjusted with a global PWM signal applied to the output enable pin (OE). Outputs can be connected in parallel, or left unconnected if not used, as required by the application.

Key Features

  • 8 constant current output channels controlled by four switch inputs
  • Output enable input for global dimming
  • Output current: from 5 mA to 100 mA
  • Current programmable through external resistor
  • Supply voltage: 3 V to 5.5 V
  • Thermal shutdown
  • 20 V current generator rated voltage
  • Available in high thermal efficiency HTSSOP exposed pad package
  • ESD protection 2.0 kV HBM, 100 V MM


Technical Documentation

Product Specifications
Description Version Size
DS12430 DS12430: 8 channel LED driver with direct switch control 1.0 452 KB

Publications and Collaterals

Description Version Size
Brochure Power management guide 09.2017 3 MB
Support & Community

Sample & Buy

Part Number Marketing Status Quantity Unit Price (US$) * Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ALED8102SXT Evaluation 1000 - HTSSOP16 Tube - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office
ALED8102SXTTR Evaluation 1000 - HTSSOP16 Tape And Reel - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ALED8102SXT EvaluationHTSSOP16AutomotiveEcopack2
ALED8102SXTTR EvaluationHTSSOP16AutomotiveEcopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.