LED array drivers, for automotive applications · LED array drivers For automotive applications ALED1642, STAP16 and STAP08: AEC-Q100 compliant, 8- and 16-channel constant-current

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

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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