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ASL150ySHN: Single-phase Automotive LED Boost Driver with Limp Home Mode

Overview

The ASL1500SHN is a highly integrated and flexible single-phase DC-to-DC boost converter IC. It has an SPI interface allowing control & diagnostic communication with an external MCU. It drives one external low-side N channel MOSFET from an internally regulated adjustable supply to drive either logic or standard level MOSFET. The flexible driver can be configured, via the SPI interface, as a single output converter, or with multiple combinations of number of outputs and phases. Read More on the ASL1500SHN Data Sheet.

The ASL1507SHN is a single-phase boost converter 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. Read More on the ASL1507SHN; ASL2507SHN Data Sheet.

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Features

The ASL1500SHN 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 +5.5 V to +40 V
Output voltage programmable via SPI interface
Flexible output voltage with 3 % accuracy programmable via SPI
Fixed Frequency Operation via built-in oscillator
Slope compensation to track the frequency and output voltage
Programmable control loop compensation
Fast high-efficiency FET switching
Programmable internal gate driver voltage regulator
Gate switching is halted when overvoltage on output is detected
Support both Logic Level and Standard Level FETs
Low Electro Magnetic Emission (EME) and high Electro Magnetic Immunity (EMI)
Output voltage monitoring
Supply voltage measurement
Control signal to enable the device
Read-back programmed voltage and frequency range via SPI
Junction temperature monitoring via SPI
Small package outline HVQFN32
Low quiescent current <5 μA at 25 °C when EN = 0

MoreLess

Features

The ASL1500SHN 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 +5.5 V to +40 V
Output voltage programmable via SPI interface
Flexible output voltage with 3 % accuracy programmable via SPI
Fixed Frequency Operation via built-in oscillator
Slope compensation to track the frequency and output voltage
Programmable control loop compensation
Fast high-efficiency FET switching
Programmable internal gate driver voltage regulator
Gate switching is halted when overvoltage on output is detected
Support both Logic Level and Standard Level FETs
Low Electro Magnetic Emission (EME) and high Electro Magnetic Immunity (EMI)
Output voltage monitoring
Supply voltage measurement
Control signal to enable the device
Read-back programmed voltage and frequency range via SPI
Junction temperature monitoring via SPI
Small package outline HVQFN32
Low quiescent current <5 μA at 25 °C when EN = 0