Three-Channel Automotive LED Buck Driver
Design Files
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Two-Phase Automotive LED Boost Driver with a Limp Home Mode
The ASL2500SHN is a highly integrated and flexible two-phase DC-to-DC boost converter IC that has an SPI interface allowing control and diagnostic communication with an external MCU. It is a two-phase converter which can have two independent outputs. 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 ASL2500SHN Data Sheet.
The ASL2507SHN is a dual phase boost converter 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 on the ASL2507SHN Data Sheet.HVQFN32 Package
Product Details
Block Diagram
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Features
Key Features
- The ASL2500SHN 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
- Multi-phase operation for higher power
- Up to two phases per output
- Up to two flexible output voltages with 3 % accuracy programmable via SPI
- Both output voltages can be controlled independently
- 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: ASL2500SHN, ASL2507SHN.
Related products
Two-Phase Automotive LED Boost Driver with a Limp Home Mode
Four-Phase Automotive LED Boost Driver
Single-Phase Automotive LED Boost Driver with Limp Home Mode
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Documentation
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