ADP1653

Data Sheet Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface ADP1653 FEATURES Small 6.4 mm × 7.2 mm solution 2.2 μH power inductor 92% peak efficiency Tx masking within 50 μs 2.1 A, 12 V power switch Pin-selectable interface: 2-bit logic or I2C Programmable flash and torch current Up to 200 mA in torch mode Up to 500 mA in flash mode Programmable indicator LED current up to 20 mA Programmable timer register: up to 820 ms flash timeout 2.75 V to 5.5 V input voltage range Low noise, 1.2 MHz PWM operation Safety features Interrupt output pin Fault condition register Short-circuit protection Output overvoltage protection Thermal overload protection Integrated current limit and soft start Small 3 mm × 3 mm, 16-lead LFCSP footprint APPLICATIONS Camera-enabled cellular phones, smart phones Digital still cameras, camcorders, PDAs OPTIONAL TxMASK TYPICAL OPERATING CIRCUIT INPUT VOLTAGE = 2.75V TO 5.5V ON ON OFF OFF 2.2µH 4.7µF UP TO 10.2V 16 15 14 STR EN VDD 1 SETT 2 SETF ADP1653 4.7µF 13 LX PGND 12 INT 11 ONE OR TWO LEDs 3 CTRL1/SCL INTF 10 4 CTRL0/SDA HPLED 9 SETI ILED OUT GND 5 6 7 8 VDD Figure 1. Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No ...