ASL2417SHNY Description

The ASL2417SHNY is a two-channel buck mode LED driver IC with a Limp-home mode. It delivers a constant average DC current to LEDs independent of the input voltage.

ASL2417SHNY Features

• Operating ambient temperature range of -40℃ to +125 ℃

• 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 2.5 V to 70 V

• The output current of up to and above 1.5 A with high LED current accuracy of ±5 % over the complete operating temperature range

• Output is currently programmable via the SPI interface

• Read back programmed current via SPI

• Customer-programmable Limp-home mode.

• Two output current ranges, programmable via SPI interface with 5 % accuracy

• Hysteretic converter

• Fast gate drive for high efficiency

• 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

• The control signal to enable the device

• Junction temperature monitoring via SPI

• Small package outline HVQFN32

• Low quiescent current < 5μA at 25 ℃ when EN = 0

• Short-circuit and open-circuit output protection

ASL2417SHNY Applications

• Automotive LED lighting

• Daytime running lights

• Position or park light

• Low beam

• High beam

• Turn indicator

• Fog light

• Cornering light

• Advanced front lighting