Fujitsu MB3891 manual Operation Timing Chart, Input, Battery controlled OUT1 hold, Backup Uvlo on

MB3891

■OPERATION TIMING CHART

Input

VBAT1 to VBAT4,

VCC-VSIM

CONT1

CONT6

CONT5

CONT2

CONT3

SW1-ON

SW2-ON (SW3-ON)

VSIM-ON

SIMPROG

Output

REF-OUT

OUT6

OUT1	2.0 V
XPOWERGOOD	delay

OUT5

OUT2

OUT3 (OUT4)

SW1-OUTPUT

SW2-OUTPUT (SW3-OUTPUT)

												VSIMOUT = 5 V
VSIMOUT								VSIMOUT = 3 V
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)		(12)	(13)	(14)	(15)	(16)	(17)
(1)	: Battery controlled	(5) : OUT1 hold
(2)	: BACKUP UVLO ON	(6) to (12) : ∝P controlled
(3)	: phone turned on	(14)		: Main UVLO off
(4)	: XPOWERGOOD on	(16)		: BACKUP UVLO off

25