描述 Description

The ASL3416SHN is a three-channel buck mode LED driver IC delivering constant average DC current to LEDs independent of the input voltage. It supports up to three output channels. It means that with one driver IC, 1, 2 or 3 LED strings can be driven independently of each other. It provides a cost-effective design solution, specifically targeting automotive exterior lighting applications. Read more in the ASL3416SHN Data sheet.
The ASL3417SHN is a three-channel buck mode LED driver IC with a Limp Home mode feature. It provides an SPI interface for extensive control and diagnostic communication with an external MCU and integrates a customer programmable Limp Home mode. The driver IC allows configurable operation during the Limp Home mode in case SPI communication with the MCU has failed. Once the loss of SPI communication is detected, the Limp Home mode gets activated. Read more in the ASL3417SHN Data sheet.

特性 Features

? The ASL3416SHN is an automotive grade product that is AEC-Q100 grade 1qualified
? Operating ambient temperature range of -40 °C to +125 °C
? Wide operating input voltage range from +10 V to +80 V
? Able to drive up to 20 LEDs, wide operating LED voltage range regulated from 2.5V to 70 V
? Output current of up to and above 1.5 A with high LED current accuracy of ±5 %over the complete operating temperature range
? Output current programmable via SPI interface
? Read back programmed current via SPI
? Two output current ranges, programmable via SPI interface with 5 % accuracy
? Hysteretic converter
? Fast gate drive for high efficiency
? Gate driver with level shifter
? Programmable internal gate driver voltage regulator
? Support logic level and standard level FETs
? Integrated bootstrap diode
? PWM inputs for individual dimming of each channel
? Low Electro Magnetic Emission (EME) and high Electro Magnetic Immunity (EMI)
? Input voltage monitoring and input under voltage protection
? Output voltage monitoring
? Control signal to enable the device
? Junction temperature monitoring via SPI
? Small package outline HVQFN32
? Low quiescent current <5 μA at 25 °C when EN = 0
? Short-circuit and open-circuit output protection

應(yīng)用 Application

汽車電子 Automotive LED lighting
Cornering light
Daytime running lights
Fog light
High beam
Low beam
Position or park light
Reversing light
Turn indicator