User Manual

BD4201FV
Regulators
1/8
Battery Backup IC
BD4201FV
BD4201FV is a battery backup IC. Sw itch that detect battery voltage and sw itch into back up pow er supply and
3-channel regulator are incorporated into a single chip.
Current consumption is 15µA (Max.). This IC is perfect for portable appliances.
zApplic ations
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 volt age, and high accurate voltage
detectors (CS, RESET)
4) Control circuit; Backup
5) S pecial sequence;
For shifting to the backup mode. It need to make
main battery over +Vdet1 once.
zExternal dimensions (Unit : mm)
SSOP-B8
5
4
8
1
0.1
6.4±0.3
4.4
±
0.2
3.0±0.2
0.22±0.1
1.15±0.1
0.65
(0.52)
0.15±0.1
0.3Min.
0.1
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol Limits
Unit
Topr
Tstg
Pd
mW
Vbat 15
V
Vin 15
15
15
V
V
V
Main power supply input Voltage
Back up power supply input Voltage
Power dissipation
Operating temperature
Storage temperature
−30 to +85
−40 to +125
C
C
CS output Voltage
Vcs
VRES
350
∗
∗ 70mm 70mm 1.6mm Glass fiber basis subtract 3.5mW / C when over 25 C
+ +
RESRT output Voltage
zCommendable operating st atus (Ta=25°C)
Vin 2.0 15.0 V
Vbat 2.0 15.0 V
Iro 0 20.0
Iout 0 60.0
Ich
-
-
-
-
-
0 20.0
Parameter Min. Max. UnitTy p.Symbol
Power supply range
Backup power supply range
Load current range1
Load current range2
Load current range3
mA
mA
mA