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ADP1650CP-EVALZ Datasheet(PDF) 2 Page - Analog Devices |
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ADP1650CP-EVALZ Datasheet(HTML) 2 Page - Analog Devices |
2 / 32 page ADP1650 Rev. C | Page 2 of 32 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 ............................................................................. 5 I2C-Compatible Interface Timing Specifications ..................... 5 Absolute Maximum Ratings............................................................ 6 Thermal Data ................................................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution.................................................................................. 6 Pin Configurations and Function Descriptions ........................... 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 12 White LED Driver ...................................................................... 12 Modes of Operation ................................................................... 12 Assist Light .................................................................................. 13 Flash Mode .................................................................................. 13 Assist-to-Flash Operation ......................................................... 13 Torch Mode ................................................................................. 13 Torch-to-Flash Mode ................................................................. 14 TxMASK Operation................................................................... 14 Frequency Foldback ................................................................... 14 Indicator LED Driver................................................................. 14 Low Battery LED Current Foldback ........................................ 14 Programmable Battery DC Current Limit.............................. 15 Analog-to-Digital Converter Operation ................................. 15 5 V Output Operation ............................................................... 16 Safety Features................................................................................. 18 Short-Circuit Fault ..................................................................... 18 Overvoltage Fault ....................................................................... 18 Dynamic Overvoltage Mode (DOVP) .................................... 18 Timeout Fault.............................................................................. 18 Overtemperature Fault .............................................................. 18 Indicator LED Fault ................................................................... 18 Current Limit .............................................................................. 18 Input Undervoltage .................................................................... 18 Soft Start ...................................................................................... 18 Reset Using the Enable (EN) Pin ............................................. 18 Clearing Faults ............................................................................ 18 I2C Interface ................................................................................ 19 I2C Register Map............................................................................. 20 Applications Information .............................................................. 26 External Component Selection ................................................ 26 PCB Layout...................................................................................... 28 Outline Dimensions ....................................................................... 29 Ordering Guide .......................................................................... 29 REVISION HISTORY 4/11—Rev. B to Rev. C Added 10-Lead LFCSP Package........................................Universal Changes to Features Section, General Description Section, and Figure 2 Caption ............................................................................... 1 Changes to Table 1............................................................................ 3 Changes to Table 5............................................................................ 6 Added Figure 5; Renumbered Sequentially .................................. 7 Changes to Table 6............................................................................ 7 Changes to PCB Layout Section and Figure 45 Caption........... 28 Added Figure 46.............................................................................. 28 Updated Outline Dimensions ....................................................... 29 Changes to Ordering Guide .......................................................... 29 2/11—Rev. A to Rev. B Changes to Features Section and General Description Section . 1 Changes to Switching Regulator, Voltage Output Mode, VOUT Voltage Parameter and Digital Inputs/GPIO, Torch Glitch Filtering Delay Parameter, Table 1.................................................. 3 Changed GND to Power Ground Throughout .............................6 Changed IL to IL, ILED to ILED, LED OUT to LED_OUT, and IBAT to IBAT Throughout ..................................................................8 Change to Figure 10 Caption ...........................................................8 Change to Figure 11 Caption ...........................................................9 Changed LED_MOD = 10 to LED_MOD = 11 in Figure 32 ... 14 Changes to Analog-to-Digital Converter Operation Section and Figure 37 .......................................................................................... 15 Changes to Selecting the Output Capacitor Section.................. 26 6/10—Rev. 0 to Rev. A Changes to Contact Information.....................................................1 5/10—Revision 0: Initial Version |
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