Fujitsu MB3891 manual Typical Characteristics

MB3891

■TYPICAL CHARACTERISTICS

Power supply current vs. power supply voltage

∝A)	400
		Ta = +25 °C
	350	CONT1 = “L”
(		CONT2 = “H”
IBAT
	300	CONT3 = “H”
		CONT4 = OPEN
current	250	CONT5 = OPEN
						OUT1	= No load
		SIMPROG = “H”
		CONT6 = OPEN
	200	VSIM-ON = “H”
	150
supply						OUT2	= No load
	100					OUT3	= No load
						OUT4	= No load
	50					OUT5	= No load
Power					V-BACKUP		= No load
	0					VSIMOUT	= No load
				3		4		5
	0	1	2

Power supply voltage VBAT (V)

Power supply current , GND current vs.

power supply voltage

Power supply current vs. power supply voltage

A)	350
		Ta = +25 °C
		CONT1 = OPEN
(∝	300
		CONT2 = “H”
IBAT	250	CONT3 = “H”
		CONT4 = OPEN
current	150	CONT5 = OPEN				OUT1	= No load
		SIMPROG = “H”
	200	CONT6 = “H”
		VSIM-ON = “H”
supply
						OUT2	= No load
						OUT5	= No load
	100					OUT3	= No load
						OUT4	= No load
	50
Power					V-BACKUP		= No load
	0					VSIMOUT	= No load
	0	1	2	3		4		5

Power supply voltage VBAT (V)

Output voltage vs. power supply

voltage (LDO1)

Power supply current IBAT (mA)

450											450
		Ta = +25 °C					IBAT
400		CONT1 = OPEN									400	A)
		CONT2 = “H”
350											350∝(
		CONT3 = “H”
300		CONT4 = OPEN									300	IGND
		CONT5 = OPEN
								IGND
250		CONT6 = “H”									250
									OUT2 = 56	Ω
150		VSIM-ON = “H”									150current
200		SIMPROG		= “H”							200
									OUT1 = 18	Ω
									OUT3 = 28	Ω		GND
100									OUT4 = 28	Ω	100
50									OUT5 = 56	Ω	50
							V-BACKUP = 8.4 kΩ
0							VSIMOUT = 510			Ω	0
	0		1		2	3	4			5

Power supply voltage VBAT (V)

Output voltage VOUT1 (V)

3.0

2.5

2.0

1.5

1.0

0.5

0.0

0

Ta = +25 °C

OUT1 = 1 ∝F

CONT1 = OPEN

CONT6 = “H”

1 2 3 4 5 6 7

Power supply voltage VBAT (V)

Output voltage VOUT1 (V)

Output voltage vs. power supply voltage (LDO1)

3.0
	Ta = +25 °C
2.5	OUT1 = 1	∝F
	CONT1 = “L”
2.0	CONT6 = OPEN
1.5
1.0
0.5
0.0
0	1	2	3	4	5

Power supply voltage VBAT (V)

Output voltage VOUT1 (V)

Output voltage vs. load current (LDO1)

2.2
2.1
2.0
1.9
		Ta = +25 °C
1.8		VBAT = 3.6 V
		CONT1 = “L”
1.7		CONT6 = OPEN
	−100 −200 −300 −400 −500 −600 −700 −800
0

Load current ILOAD (mA)

(Continued)

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