Connected car solutions: one of the major business drivers for the automotive industry in the future
LED array drivers, for automotive applications · LED array drivers For automotive applications...
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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 multi- channel 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. The ALED1642 features independent PWM dimming for maximum flexibility. KEY APPLICATIONS • Dashboards and clusters • Infotainment • Ambient lights • Rear combination lights KEY FEATURES & BENEFITS • PWM dimming for grayscale brightness 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 www.st.com/led
Transcript of LED array drivers, for automotive applications · LED array drivers For automotive applications...
LED array driversFor automotive applications
ALED1642, STAP16 and STAP08: AEC-Q100 compliant, 8- and 16-channel constant-current LED drivers
ST’s offers a selection of multi-channel 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.
The ALED1642 features independent PWM dimming for maximum flexibility.
KEY APPLICATIONS• Dashboardsandclusters
• Infotainment
• Ambientlights
• Rearcombinationlights
KEY FEATURES & BENEFITS• PWMdimmingforgrayscalebrightnesscontrolandprogrammablecurrentgainforwidedesignflexibility(ALED1642only)
• Autopowersavingfeatureshutsdowndevicewhenoutputareoffformaximumefficiency(notavailableforSTAP08)
• 4-wireSPIenablingdaisychainconnection
• Shortandopenerrordetectionmodeswithread-backstatusinreal-timetoensurefastresponsetofaultconditions
www.st.com/led
ALED1642 MAIN BLOCKS
STAP08, STAP16 MAIN BLOCKS
Current ref
Con�gurationregister
UVLOand POR
Current gainadjustment
PWMcounter
Control logic and data registers
16 o
utpu
t cha
nnel
s
Thermalshutdown
SDI
SD0
CLKLE
VDOGND
R-EXT
OUT0
PWCLK
OUT1
OUT2
OUT14
OUT15
Errordetection
Channels driverTiming controlTurn ON/OFFGradual delay
Current ref
UVLOand POR
16 o
utpu
t cha
nnel
s
Thermalshutdown
SDI
SD0
CLKLE/DM1
VDOGND
R-EXT
OUT0OUT1
OUT2
OUT14
OUT15
Errordetection
Turn ON/OFF
OE/DM2
Control logic and data registers
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PRODUCTS TABLE
Order codeInput
voltage (V)
Output voltage
(V)
# of channels
IOUT per channel
(mA)
Current accuracy typ (%)
(ch-to-ch/IC-to-IC)
Error detection
Auto power saving
PWM dimming
package
ALED1642GW
3 to 5.5 2016
3 to 40± 1 / ± 3 Yes Yes Yes TSSOP24 exposed pad
STAP16DPPS05 ± 0.5 / ± 4 Yes Yes No TSSOP24 exposed pad
STAP16DPS055 to 100
± 1.5 / ± 5 Yes Yes No TSSOP24 exposed pad
STAP08DP05 8 ± 0.5 / ± 4 Yes No No TSSOP16 exposed pad
For more information on ST products and solutions, visit www.st.comOrder code: FLLEDARRAY1014
