DESCRIPTION
In the output stage, eight regulated current sources were designed to provide 15-120mA constant current to drive the LEDs. The device performs this additional function without any increase of the pin number and any change of the pin function, if compared to the standard device without error detection. Consequently, choosing this device does not mean to change the footprint on the board. To perform this functionality mode, the device needs a digital key coming from the Microprocessor. The STP08CDC596 is able to detect: open and short on the LED line, short to Table 1: Order Codes Type STP08CDC596B1 STP08CDC596M STP08CDC596MTR STP08CDC596TTR Temp. Range -40°C to -40°C to -40°C to -40°C to 125°C 125°C 125°C 125°C TSSOP16 GND, short to Led voltage supply. The data mapping of output channels status detection is provided by a feedback from the serial output to the Microprocessor. Trough an external resistor, users may adjust the STP08CDC596 output current, controlling the light intensity of LEDs.
STMicroelectronics
