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ACT8849 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Advanced PMU - Active-Semi

भाग संख्या ACT8849
समारोह Advanced PMU
मैन्युफैक्चरर्स Active-Semi 
लोगो Active-Semi लोगो 
पूर्व दर्शन
1 Page
		
<?=ACT8849?> डेटा पत्रक पीडीएफ

ACT8849 pdf
TABLE OF CONTENTS
ACT8849
Rev PrB, 12-Jun-14
General Information .....................................................................................................................................p. 01
Functional Block Diagram............................................................................................................................p. 03
Ordering Information....................................................................................................................................p. 04
Pin Configuration .........................................................................................................................................p. 04
Pin Descriptions...........................................................................................................................................p. 05
Absolute Maximum Ratings .........................................................................................................................p. 07
I2C Interface Electrical Characteristics ........................................................................................................p. 08
Global Register Map ....................................................................................................................................p. 09
Register and Bit Descriptions ......................................................................................................................p. 11
System Control Electrical Characteristics....................................................................................................p. 16
Step-Down DC/DC Electrical Characteristics ..............................................................................................p. 17
Low-Noise LDO Electrical Characteristics...................................................................................................p. 18
Low-Input Voltage LDO Electrical Characteristics.......................................................................................p. 19
Low-Power (Always-On) LDO Electrical Characteristics.............................................................................p. 20
Typical Performance Characteristics……………………………………………………………………………..p. 21
System Control Information .........................................................................................................................p. 25
Interfacing with the Samsung Exynos4412 Processors...................................................................p. 25
Control Signals .................................................................................................................................p. 27
Push-Button Control.........................................................................................................................p. 28
Control Sequences...........................................................................................................................p. 28
Watch-Dog Supervision ...................................................................................................................p. 29
Software-Initiated Power Cycle ........................................................................................................p. 29
Functional Description .................................................................................................................................p. 30
I2C Interface .....................................................................................................................................p. 30
Housekeeping Functions..................................................................................................................p. 30
Thermal Protection ...........................................................................................................................p. 30
Step-Down DC/DC Regulators ....................................................................................................................p. 31
General Description..........................................................................................................................p. 31
100% Duty Cycle Operation.............................................................................................................p. 31
Operating Mode................................................................................................................................p. 31
Synchronous Rectification................................................................................................................p. 31
Soft-Start ..........................................................................................................................................p. 31
Compensation ..................................................................................................................................p. 31
Configuration Options.......................................................................................................................p. 31
OK[ ] and Output Fault Interrupt.......................................................................................................p. 32
PCB Layout Considerations .............................................................................................................p. 32
Low-Noise, Low-Dropout Linear Regulators................................................................................................p. 33
General Description..........................................................................................................................p. 33
Output Current Limit .........................................................................................................................p. 33
Compensation ..................................................................................................................................p. 33
Configuration Options.......................................................................................................................p. 33
OK[ ] and Output Fault Interrupt.......................................................................................................p. 33
PCB Layout Considerations .............................................................................................................p. 33
Always-On LDO (REG13)............................................................................................................................p. 34
General Description..........................................................................................................................p. 34
Reverse-Current Protection .............................................................................................................p. 34
Typical Application ...........................................................................................................................p. 34
TQFN66-48 Package Outline and Dimensions ...........................................................................................p. 35
Innovative PowerTM
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Active-Semi ConfidentialDo Not Copy or Distribute
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I2CTM is a trademark of NXP.
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Copyright © 2014 Active-Semi, Inc.

विन्यास 30 पेज
डाउनलोड[ ACT8849 Datasheet.PDF ]


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