ADP1653

NOT RECOMMENDED FOR NEW DESIGNS

Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface

Data Sheet (Rev. C) Product Selection Table

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Part Details

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

Documentation

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
ADP1660	PRODUCTION	Dual 750 mA LED Flash Driver with I²C-Compatible Interface

Evaluation Kits

ADP1653 Evaluation Board

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Product Details

The evaluation system is composed of a motherboard and a daughterboard. The motherboard provides the I2C signals from the computer USB port and generates the I/O voltages and digital high and low signals for the daughterboard. For temperature measurement, the daughterboard can be either plugged directly into the motherboard or connected to the motherboard via the ribbon cable provided with the evaluation kit.

The motherboard features a 3.3 V regulator and a 1.8 V regulator. The jumpers on the bottom left of the motherboard set the VIC voltage, which is the I2C voltage for the control pins. Users can choose among the 1.8 V, 3.3 V, or 5 V USB or the external VBAT as the supply voltage for the daughterboard.

The daughterboard contains numerous jumpers and test points for easy evaluation of the board. Also included with the kit are two current probes that can be plugged directly into jumper heads to measure currents with current probes.