BD4201FV Datasheet, PDF (1/9 Pages) Rohm – Battery Backup IC

Regulators
Battery Backup IC
BD4201FV
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 15µA (Max.). This IC is perfect for portable appliances.
zApplications
Portable video, Digital camera
zFeatures
1) Low quiescent current
Normal operation < 15.0µA Max.
Backup mode < 2.1µA 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.
zExternal dimensions (Unit : mm)
3.0±0.2
85
14
0.15±0.1
(0.52)
0.1
0.22±0.1
0.65
SSOP-B8
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Main power supply input Voltage
Vin
15
V
Back up power supply input Voltage Vbat
15
V
CS output Voltage
Vcs
15
V
RESRT output Voltage
Power dissipation
VRES
Pd
15
V
350 ^∗
mW
Operating temperature
Topr
−30 to +85
C
Storage temperature
Tstg
−40 to +125
C
∗70mm⁺ 70mm⁺ 1.6mm Glass fiber basis subtract 3.5mW / C when over 25 C
zCommendable operating status (Ta=25°C)
Parameter
Power supply range
Backup power supply range
Load current range1
Load current range2
Load current range3
Symbol Min.
Typ.
Max.
Unit
Vin
2.0
-
15.0
V
Vbat
2.0
-
15.0
V
Iro
0
-
20.0
mA
Iout
0
-
60.0
mA
Ich
0
-
20.0
mA
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