ADP1653 is a high efficiency, high power, flash/torch LED driver with dual interface
The ADP1653 is a very compact, high‑efficiency LED driver optimized for camera flash applications in cellular phones, digital cameras and other portable devices. It supports a dual‑mode interface (2‑bit logic or I²C) and provides programmable flash and torch currents, a programmable timer, and a Tx‑masking function to reduce battery stress during RF transmission.
The device includes multiple safety features such as interrupt output, fault register, short‑circuit, over‑voltage, thermal overload protection, and integrated current limit with soft‑start. It operates from 2.75 V to 5.5 V (typical 3.0 V‑5.5 V) and fits in a 6.4 mm × 7.2 mm LFCSP package.
| Peak Efficiency | 92 % |
|---|---|
| Input Voltage Range | 2.75 V to 5.5 V |
| Torch Mode Current | Up to 200 mA |
| Flash Mode Current | Up to 500 mA |
| Switching Frequency | 1.1 MHz to 1.3 MHz |
| Thermal Shutdown Threshold | 155 °C |
The ADP1653 achieves a peak efficiency of 92 %.
It operates from 2.75 V to 5.5 V (typical 3.0 V‑5.5 V).
The device includes an interrupt output pin, fault condition register, short‑circuit protection, output over‑voltage protection, thermal overload protection, and integrated current limit with soft‑start.