LED array drivers For automotive applications ALED1642, STAP16 and STAP08: AEC-Q100 compliant, 8- and 16-channel constant-current LED drivers ST’s offers a selection of multichannel constant-current LED drivers manufactured and qualified to meet and exceed automotive industry requirements. These LED array drivers are 20 V rated for best fit with automotive ratings. They are available with either 8 or 16 independent channels and provide tight channel-to-channel and IC-to-IC output current matching, ranging from 3 to 100 mA. They embed automatic power saving, error detection and thermal shutdown features. KEY FEATURES & BENEFITS • PWM dimming for grayscale brightness KEY APPLICATIONS control and programmable current gain for wide design flexibility (ALED1642 only) • Auto power saving feature shuts down device when output are off for maximum efficiency (not available for STAP08) • 4-wire SPI enabling daisy chain connection • Short and open error detection modes with read-back status in real-time to ensure fast response to fault conditions • Dashboards and clusters • Infotainment • Ambient lights • Rear combination lights The ALED1642 features independent PWM dimming for maximum flexibility. www.st.com/led ALED1642 MAIN BLOCKS SD0 Control logic and data registers VDO GND UVLO and POR Error detection Thermal shutdown Configuration register R-EXT Current ref OUT0 OUT1 PWM counter 16 output channels SDI CLK LE PWCLK Channels driver Timing control Turn ON/OFF Gradual delay Current gain adjustment OUT2 OUT14 OUT15 STAP08, STAP16 MAIN BLOCKS SD0 SDI CLK LE/DM1 OE/DM2 OUT0 OUT1 VDO GND Error detection UVLO and POR R-EXT 16 output channels Control logic and data registers Thermal shutdown Current ref OUT2 OUT14 Turn ON/OFF OUT15 PRODUCTS TABLE Order code Input voltage (V) Output voltage (V) # of channels ALED1642GW STAP16DPPS05 STAP16DPS05 3 to 5.5 STAP08DP05 20 16 8 IOUT per channel (mA) 3 to 40 5 to 100 Current accuracy typ (%) (ch-to-ch/IC-to-IC) Error detection Auto power saving PWM dimming package ±1/±3 Yes Yes Yes TSSOP24 exposed pad ± 0.5 / ± 4 Yes Yes No TSSOP24 exposed pad ± 1.5 / ± 5 Yes Yes No TSSOP24 exposed pad ± 0.5 / ± 4 Yes No No TSSOP16 exposed pad © STMicroelectronics - October 2014 - Printed in United Kingdom - All rights reserved The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies All other names are the property of their respective owners. Oracle and Java are registered trademarks of Oracle and/or its affiliates Order code: FLLEDARRAY1014 For more information on ST products and solutions, visit www.st.com