DLPS147B January 2019 – May 2022 DLP4500NIR
PRODUCTION DATA
An illumination interface is provided that supports an LED driver with up to 3 individual channels.
Table 9-3 describes the active signals for the illumination interface.
When the DLP4500NIR is used with a single near-IR LED, then one of the three LED enables can be used to drive the near-IR LED. The user can also disable all the LED enables and allow an external processor to control the near-IR LED.
SIGNAL NAME | DESCRIPTION |
---|---|
HEARTBEAT | LED blinks continuously to indicate system is running fine |
FAULT_STATUS | LED off indicates system fault |
LEDR_EN | Red LED enable |
LEDG_EN | Green LED enable |
LEDB_EN | Blue LED enable |
LEDR_PWM | Red LED PWM signal used to control the LED current |
LEDG_PWM | Green LED PWM signal used to control the LED current |
LEDB_PWM | Blue LED PWM signal used to control the LED current |