STEVAL-L9800

STEVAL-L9800 is a L9800 multichannel driver evaluation board designed by STMicroelectronics in advanced BCD technology. The L9800 is an 8-channel IC with eight LS drivers designed for automotive applications (LEDs and relays) and compatible with resistive, inductive, and capacitive loads. The device offers advanced diagnostic and protection functionalities such as short to GND, open load, overcurrent, and overtemperature detection. The 8 output channels can be driven by SPI or by 2 dedicated parallel inputs that can be associated to different output thanks to a programmable internal multiplexer. Limp home functionality is also featured, which allows the use of 2 selected drivers in specific fault conditions, such as SPI fault, microcontroller fault, or supply UV. Daisy chain compatibility even with 8-bit SPI is available. The device is able to ensure operation in cranking scenarios down to VBATT = 3V and very low quiescent current in the SLEEP condition.

• Operating input voltage range from 3V to 28V
• Eight LS drivers up to 0.5A
• Idle mode for reduced current consumption
• Possible daisy chain configuration
• Two parallel input pins with input mapping functionality
• SPI communication interface for control and diagnostics
• L9800 hosted in QFN24 package and 4-layer PCB (70 x 55mm)