Samsung RL37Lx Instrukcja Użytkownika Pobierz pdf (Strona 3)

Confidential MAX8698C, Rev08

Page 3/47

DO NOT COPY. DO NOT DISTRIBUTE 12/8/2009

Table of contents

General Description................................................................................................................................................. 5

Ordering Information ............................................................................................................................................... 6

Pin Configuration..................................................................................................................................................... 6

ABSOLUTE MAXIMUM RATINGS.......................................................................................................................... 7

Electrical Characteristics ......................................................................................................................................... 7

Buck Converter 1 & 2 Electrical Characteristics .................................................................................................. 9

Buck Converter 3 Electrical Characteristics ...................................................................................................... 10

LDO1 (Always On LDO) Electrical Characteristics –VCC_RTC.......................................................................11

LDO2 Electrical Characteristics – VCC_ALIVE................................................................................................. 11

LDO3 Electrical Characteristics......................................................................................................................... 12

LDO4 Electrical Characteristics......................................................................................................................... 13

LDO5 Electrical Characteristics......................................................................................................................... 14

LDO6 Electrical Characteristics......................................................................................................................... 15

LDO7 Electrical Characteristics......................................................................................................................... 16

LDO8 Electrical Characteristics......................................................................................................................... 17

LDO9 Electrical Characteristics......................................................................................................................... 18

Backup Battery Charger Electrical Characteristics – VCC_COIN..................................................................... 19

Pin Description ...................................................................................................................................................... 20

Functional Block Diagram ..................................................................................................................................... 22

Technical Description ............................................................................................................................................ 23

Step-Down DC-DC Converters (BUCK1, BUCK2, and BUCK3)....................................................................... 23

Linear Regulators (LDO1 – LDO9); ................................................................................................................... 23

Backup Battery Charger ;Always On ................................................................................................................. 24

Dynamic Voltage Scaling (DVS) Modes ............................................................................................................ 24

BUCK1 DVS Modes........................................................................................................................................... 24

BUCK2 DVS Modes........................................................................................................................................... 24

Buck1 and Buck2 DVS Control with Ramp Rate (RAMP) ................................................................................. 25

Power Sequencing ................................................................................................................................................ 25

Power On/OFF................................................................................................................................................... 25

Enable Signals (PWREN, I

C) .......................................................................................................................... 26

Buck1 and Buck2 Enable (PWREN and I2C).................................................................................................... 26

Power-Up and Power-Down Timing...................................................................................................................... 27

PWRON (or JIGON) key triggering power on sequence ................................................................................... 27

PWRHOLD triggering power down sequence ................................................................................................... 28

Voltage Monitors, Reset, and Under-voltage Lockout Functions.......................................................................... 31

Under-voltage Lockout (UVLO) ......................................................................................................................... 31

Low-Battery Detector, (/LBO\ ) .......................................................................................................................... 31

Reset Output (/RSO\) and /MR\ Input................................................................................................................ 31

Internal Off-Discharge Resistors ....................................................................................................................... 32

Thermal Overload Protection............................................................................................................................. 32

External Components............................................................................................................................................ 32

Suggested Inductors.......................................................................................................................................... 33

Output Capacitor Selection................................................................................................................................ 33

Input Capacitor Selection................................................................................................................................... 33

PCB Layout Guide for the Buck Converters ...................................................................................................... 33

I2C ......................................................................................................................................................................... 33

C START AND STOP CONDITIONS.............................................................................................................. 34

C SYSTEM CONFIGURATION....................................................................................................................... 34

C Acknowledge................................................................................................................................................ 34

MAX8698C I

C Address........................................................................................................................................ 35

ONOFF1 Register.............................................................................................................................................. 35

ONOFF2 Register.............................................................................................................................................. 35

ADISCHG_EN1 ................................................................................................................................................. 36

ADISCHG_EN2 ................................................................................................................................................. 37

1 2 3 4 5 6 7 8 ... 46 47

Komentarze do niniejszej Instrukcji

Brak uwag

Samsung RL37Lx Instrukcja Użytkownika Strona 3

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Nie Samsung RL37Lx