ADP3408(Rev0) 查看數據表（PDF） - Analog Devices

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ADP3408
(Rev.:Rev0)

GSM Power Management System

Analog Devices 

ADP3408

Table I. LDO Control Logic

PHONE STATUS

State #1

Battery Deep Discharged L X X X X L X OFF OFF OFF OFF OFF OFF OFF

State #2

Phone Off

H L X X X L X OFF OFF OFF OFF OFF ON OFF

State #3

Phone Off,

Turn-On Allowed

H H L H L L X OFF OFF OFF OFF OFF ON OFF

State #4

Charger Applied

H H H X X L L OFF ON ON ON ON ON OFF

State #5

Phone Turned On by

User Key

H H X L X L L OFF ON ON ON ON ON OFF

State #6

Phone Turned On by BB H H L H H L L OFF ON OFF OFF ON ON OFF

State #7

Enable SIM Card

H H L H H L H ON ON OFF OFF ON ON OFF

State #8

Phone and TCXO

LDO Kept On by BB

H H L H H H H ON ON ON ON ON ON ON

*UVLO is active only when phone is turned off. UVLO is ignored once the phone is turned on.

–6–

REV. 0

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