Three-Channel Automotive LED Buck Driver
Design Files
Receive the full breakdown. See the product footprint and more in the eCad file.
Single-Phase Automotive LED Boost Driver with Limp Home Mode
The ASL1500SHN is a highly integrated and flexible single-phase DC-to-DC boost converter IC. It has an SPI interface allowing control and 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.
HVQFN32 Package
Product Details
Block Diagram
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Features
Key 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
Part numbers include: ASL1500SHN, ASL1507SHN.
Related products
Two-Channel Automotive LED Buck Driver
Two-Phase Automotive LED Boost Driver with a Limp Home Mode
Four-Phase Automotive LED Boost Driver
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Documentation
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