ASL2416SHN数据手册恩XP中文资料规格书

描述 Description

TheASL2416SHN is a two-channel buck mode LED driver IC delivering constant average DC current to LEDs independent of the input voltage. It provides an SPI interface for extensive control and diagnostics communication with an external microcontroller. It supports up to two output channels meaning that with one driver IC, 1 or 2 LED strings can be driven independently of each other. It provides a cost-effective design solution, specifically targeting automotive exterior lighting applications. Read more on the ASL2416SHN Data sheet.
The ASL2417SHN is a two-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 microcontroller 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 microcontroller has failed. Once the loss of SPI communication is detected, the Limp Home mode gets activated. During Limp-home mode, the outputs of the IC are operating according to a pre-defined condition stored in a non-volatile memory (NVM) programmable by the customer at their end of line. Read more on the ASL2417SHN Data sheet.

特性 Features

• The ASL2416SHN is an automotive grade product that is AEC-Q100 grade 1 qualified
• 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

应用 Application

汽车LED照明 日间行车灯
示宽灯或泊车灯
近光灯
远光灯
矩阵灯
自适应行车灯
转向指示灯
雾灯
转向灯
倒车灯