RK808 datasheet(3/75 Pages) ROCKCHIP

3 / 75 page

RK808

Power Management System

Version 1.0.1

www.rock-chips.com

TABLE OF CONTENTS

OVERVIEW.................................................................................................... 8

FEATURES .................................................................................................... 8

BLOCK DIAGRAM ........................................................................................... 9

TYPICAL APPLICATION DIAGRAMS ..................................................................10

ORDERING INFORMATION .............................................................................12

ABSOLUTE MAXIMUM RATINGS ......................................................................12

RECOMMENDED OPERATING CONDITIONS.......................................................12

ELECTRICAL CHARACTERISTICS.....................................................................13

STATE MACHINE DESCRIPTION ......................................................................23

9.1

STATE MACHINE DESCRIPTION............................................................23

9.2

DEVICE POWER-ON ENABLE CONDITIONS.............................................23

9.3

DEVICE POWER-ON DISABLE CONDITIONS ...........................................24

9.4

DEVICE SLEEP ENABLE CONDITIONS....................................................24

POWER SEQUENCE ..................................................................................25

10.1

BOOT1=0, BOOT0 = 0 ........................................................................26

10.2

BOOT1=0, BOOT0 = 1 ........................................................................26

10.3

BOOT1=1, BOOT0 = 0 ........................................................................27

10.4

BOOT1=1, BOOT0 = 1(RK808-B/RK808-C) ...........................................27

10.5

BOOT TIMING CHARACTERISTIC..........................................................28

POWER CONTROL TIMING ........................................................................29

11.1

DEVICE TURN-ON WITH PLUG_IN ........................................................29

11.2

DEVICE TURN OFF WITH FALLING INPUT VOLTAGE.................................30

11.3

TIMING CHARACTERISTICS(Vin rising/falling and Plug-in).......................30

11.4

DEVICE STATE CONTROL THROUGH PWRON SIGNAL ..............................31

11.5

TIMING CHARACTERISTICS (PWRON, DEV_OFF)....................................32

11.6

DEVICE SLEEP STATE CONTROL...........................................................32

11.7

TIMING CHARACTERISTICS (SLEEP).....................................................33

PIN ASSIGNMENT....................................................................................33

PINOUT DEFINITION................................................................................34

APPLICATION NOTE .................................................................................38

15.1

15.2

15.2.1

RTC REGISTERS ......................................................................40

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