參數(shù)資料
型號(hào)： MB3790PF
廠商： FUJITSU LTD
元件分類(lèi)： 電源管理
英文描述： Battery Backup IC
中文描述： 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封裝： PLASTIC, SOP-16
文件頁(yè)數(shù)： 10/21頁(yè)
文件大?。?/td> 192K
代理商： MB3790PF
10
MB3790
(Continued)
(V
IN
= +5 V, Ta = +25
°
C)
Value
Parameter
Symbol
Conditions
Unit
Min.
Typ.
Max.
Battery-1
Monitoring
Section
Low voltage detection 1
V
BATL1
V
BAT
2.55
2.65
2.75
V
Ta = – 30°C to +70°C
2.52
2.65
2.78
V
V
BATH1
V
BAT
2.59
2.69
2.79
V
Ta = – 30°C to +70°C
2.56
2.69
2.82
V
Low voltage detection-1
hysteresis width
DV
BAT1
V
BATH1
– V
BATL1
20
40
60
mV
Low voltage detection 2
V
BATL2
V
BAT
2.27
2.37
2.47
V
Ta = – 30°C to +70°C
2.24
2.37
2.50
V
V
BATH2
V
BAT
2.31
2.41
2.51
V
Ta = – 30°C to +70°C
2.28
2.41
2.54
V
Low voltage detection-2
hysteresis width
DV
BAT2
V
BATH2
– V
BATL2
20
40
60
mV
Low voltage detection
difference
DV
BAT
V
BATL1
– V
BATL2
0.26
0.28
0.30
V
Battery-1 input current
I
BATA
V
BAT
= 3 V, V
IN
= 0 V
–100
—
500
nA
I
BATB
V
BAT
= 3 V, V
IN
= 5 V
I
BAT1
= 100
μ
A
–100
—
500
nA
Battery-1 output voltage
difference
during backup, CTL = GND
DV
B1
—
0.30
0.35
V
I
BAT1
= 10
μ
A
—
0.10
0.15
V
Alarm output voltage
V
OHA
I
OHA
= 4 mA
4.5
4.8
—
V
V
OLA
I
OLA
= 5 mA
—
0.2
0.4
V
μ
s
μ
s
μ
s
Alarm output rise time
t
rA
C
L
= 100 pF
—
2.0
3.0
Alarm output fall time
t
fA
—
0.2
1.0
Alarm output delay time
t
pdA
50 mV overdrive
—
2.0
10
Battery-2
Monitoring
Section
Battery-2 recharging
voltage
V
CHG
I
CHG
= –10
μ
A
2.80
3.00
3.20
V
Battery-2 recharging current I
CHG
V
CHG
= 2.0 V
1.0
2.0
—
mA
Battery-2 output voltage
difference
during backup
DV
B2
I
BAT2
= 10
μ
A
—
0.10
0.15
V
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