This user guide describes the functionality of the Analog Devices, Inc., ADP8860 and provides software development guidelines. The ADP8860 communicates with an external processor using an I2C interface and an interrupt line (nINT). The processor sends initialization and activation commands to the ADP8860, which acts as a slave device. The interrupt line, from the ADP8860 to the processor, is used to indicate a failure condition, such as a thermal shutdown or an overvoltage and LED/output short circuit, or to indicate a light level threshold has been crossed. All interrupt sources are maskable.
This document serves as a software user guide for the Analog Devices ADP8860, an integrated circuit designed to drive LED backlights. It details how the device communicates with external processors via an I2C-compatible serial interface and an interrupt line (nINT). The guide explains that the processor sends initialization and activation commands while the device operates as a slave.
The device supports up to 10 LEDs driven in parallel with a maximum total current of 60 mA.
All outputs can drive up to 30 mA, except the seventh sink which can drive up to 60 mA.
The TSD_INT interrupt is generated when the die temperature rises above a safety limit, typically 150°.