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ADP1655ACBZ-R7 Datasheet(PDF) 2 Page - Analog Devices |
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ADP1655ACBZ-R7 Datasheet(HTML) 2 Page - Analog Devices |
2 / 24 page ADP1655 Rev. 0 | Page 2 of 24 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Recommended Specifications: Input and Output Capacitance and Inductance ............................................................................. 4 I2C-Compatible Interface Timing Specifications ..................... 5 Absolute Maximum Ratings............................................................ 6 Thermal Data ................................................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 12 White LED Driver ...................................................................... 12 Assist Light and Torch Modes .................................................. 12 2-Bit Logic Interface Mode (I2C/EN = 0)............................... 13 I2C Interface Mode (I2C/EN = 1)............................................. 13 State Transitions ......................................................................... 15 I2C Register Map............................................................................. 16 Safety Features................................................................................. 19 Overvoltage Fault ....................................................................... 19 Output Capacitor Fault.............................................................. 19 Timeout Fault.............................................................................. 19 Overtemperature Fault .............................................................. 19 Short-Circuit Fault ..................................................................... 19 Current Limit .............................................................................. 19 Amount of LED Detection........................................................ 19 Input Undervoltage .................................................................... 19 Applications Information .............................................................. 20 External Component Selection ................................................ 20 PCB Layout...................................................................................... 22 Outline Dimensions ....................................................................... 23 Ordering Guide .......................................................................... 23 REVISION HISTORY 5/09—Revison 0: Initial Version |
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