Diodes Incorporated AL1783Q Three-channel PWM Linear LED Driver

Diodes Incorporated AL1783Q Three-channel PWM Linear LED Driver is designed to target automotive LED lighting applications and is attributed to a compact solution. This driver offers independent PWM dimming and current setting controls for each channel. The AL1783Q driver is also attributed to a PWM dimming performance, eBOM cost-effectiveness, ease of system implementation, and low standby power. This driver is available in the TSSOP-16EP package and minimizes external component count and PCB space. The AL1783Q driver features three external ref pins to set LED current for each channel, and this driver is lead-free, and RoHS compliant. This driver operates at a 6.5V to 55V input voltage range and -55°C to 160°C storage temperature range. The AL1783Q driver is used in position, fog, and rear lights.

Features

Three external ref pins to set LED current for each channel
AEC-Q100 (grade 1) qualified
Independent PWM dimming control for each channel
Three external ref pins to set LED current for each channel
Enter and exit standby power-saving mode automatically
Robust protections:
- Undervoltage Lockout (UVLO)
- Overvoltage Protection (OVP)
- LED String Open Protection (LED Open)

Overtemperature Protection (OTP):
- Thermal foldback
- Thermal shutdown
- Automatic thermal recovery
Fault reporting:
- UVLO
- OTP
- LED open and short
Lead-free and RoHS-compliant

Specifications

6.5V to 55V input voltage range
±4% LED current tolerance at 125mA
40kHz fast PWM dimming
-55°C to 160°C storage temperature range

-40°C to 150°C operating junction temperature range
-40°C to 125°C operating ambient temperature range

Applications

Daytime running lights
Position lights
Fog lights

Rear lights
Stop or taillights
Interior lighting

Diodes Incorporated AL1783Q Three-channel PWM Linear LED Driver

Features

Specifications

Applications

Typical Application Circuit Diagram

Block Diagram

Dimension Diagram

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