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BD4201FV Datasheet

  • BD4201FV

  • Battery Backup IC

  • 9頁(yè)

  • ROHM

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BD4201FV
Regulators
Battery Backup IC
BD4201FV
BD4201FV is a battery backup IC. Switch that detect battery voltage and switch into back up power supply and
3-channel regulator are incorporated into a single chip.
Current consumption is 15碌A(chǔ) (Max.). This IC is perfect for portable appliances.
Applications
Portable video, Digital camera
External dimensions
(Unit : mm)
3.0鹵0.2
8
5
Features
1) Low quiescent current
Normal operation < 15.0碌A(chǔ) Max.
Backup mode < 2.1碌A(chǔ) Max.
2) 3 high accurate voltage regulators
3) Low dropout voltage, and high accurate voltage
detectors (CS, RESET)
4) Control circuit; Backup
5) Special sequence;
For shifting to the backup mode. It need to make
main battery over +Vdet1 once.
6.4鹵0.3
4.4鹵0.2
1
4
0.15鹵0.1
0.1
1.15鹵0.1
0.1
0.22鹵0.1
0.65
(0.52)
SSOP-B8
Absolute maximum ratings
(Ta=25擄C)
Parameter
Main power supply input Voltage
Back up power supply input Voltage
CS output Voltage
RESRT output Voltage
Power dissipation
Operating temperature
Storage temperature
+
+
Symbol
Vin
Vbat
Vcs
VRES
Pd
Topr
Tstg
Limits
15
15
15
15
350
鈭?/div>
鈭?0
to
+85
鈭?0
to
+125
Unit
V
V
V
V
mW
C
C
鈭?/div>
70mm 70mm 1.6mm Glass fiber basis subtract 3.5mW / C when over 25 C
Commendable operating status
(Ta=25擄C)
Parameter
Power supply range
Backup power supply range
Load current range1
Load current range2
Load current range3
Symbol
Vin
Vbat
Iro
Iout
Ich
Min.
2.0
2.0
0
0
0
Typ.
-
-
-
-
-
Max.
15.0
15.0
20.0
60.0
20.0
Unit
V
V
mA
mA
mA
0.3Min.
1/8

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