The ADP8860 is a 7-channel smart LED driver with an I2C interface. It features automatic gain selection to boost the input voltage by 1×, 1.5×, and 2× for maximum efficiency. It also has two built-in comparator inputs for ambient light sensing, and outdoor, office, and dark modes for maximum backlight power savings. In addition, it has 7 independent and programmable LED drivers, 128 levels of programmable maximum current limit, standby mode, 16 programmable fade-in and fade-out times (0.1 sec to 5.5 sec), selectable linear, square, or cubic rates, and an I2C-compatible interface.
The ADP8860 combines a programmable backlight LED charge‑pump driver with automatic phototransistor control, allowing up to seven independent LED channels (six at 30 mA typical, one at 60 mA typical). The device operates from 2.5 V to 5.5 V input and includes programmable current limits, fade‑in/out timing, and ambient‑light sensing via I²C.
The datasheet provides detailed specifications, pin configurations for both WLCSP and LFCSP packages, I²C timing diagrams, absolute maximum ratings, thermal resistance data, and protection mechanisms such as short‑circuit, over‑voltage, and over‑temperature shutdown. Application notes, layout guidelines, and example circuits are also included.
| Supply Input Voltage Range | 2.5 V – 5.5 V |
|---|---|
| Maximum Drive Current per LED | 30 mA typical (six channels), 60 mA typical (one channel) |
| Automatic Gain Selection | 1×, 1.5×, 2× |
| I²C Clock Frequency | 400 kHz |
| Operating Temperature Range | -40 °C to +85 °C |
The device operates from 2.5 V to 5.5 V input.
It supports seven independent LED channels: six can drive up to 30 mA typical and one can drive up to 60 mA typical.
The I²C clock frequency is limited to 400 kHz.
The device includes short‑circuit, over‑voltage, over‑temperature, and thermal shutdown protection, as well as a built‑in soft‑start.