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EnerChip CC CBC3112
CHARGE PUMP CHARACTERISTICS
V DD = 2.5V to 5.5V, T a = -20oC to +70oC
CHARACTERISTIC
ENABLE=V DD to Charge
Pump Active
ENABLE Falling to
Charge Pump Inactive
Charge Pump Frequency
Charge Pump
Resistance
V CHG Output Voltage
V CHG Temp. Coefficient
Charge Pump Current
Drive
Charge Pump on Voltage
SYMBOL
t CPON
t CPOFF
f CP
R CP
V CP
T CCP
I CP
V ENABLE
CONDITION
ENABLE to 3rd charge pump
pulse, V DD =3.3V
-
Delta V BAT , for I BAT charging
current of 1μA to 100μA
C FLY =0.1μF, C BAT =1.0μF
C FLY =0.1μF, C BAT =1.0μF,
I OUT =1μA, Temp=+25oC
I OUT =1μA, Temp=+25oC
I BAT =1mA
C FLY =0.1μF, C BAT =1.0μF
ENABLE=V DD
MIN
60
0
-
150
4.075
-2.0
1.0
2.5
MAX
80
1
120
300
4.125
-2.4
-
-
UNITS
μs
μs
KHz (1)
?
V
mV/oC
mA
V
(1)
f CP = 1/t CPPER
ADDITIONAL CHARACTERISTICS
Ta = -20oC to +70oC
CHARACTERISTIC
SYMBOL
CONDITION
LIMITS
UNITS
MIN
MAX
V BAT Cutoff Threshold
Cutoff Temp. Coefficient
V BAT Cutoff Delay Time
V OUT Dead Time, V DD
Rising (2)
V OUT Dead Time, V DD
Falling (2)
Bypass Resistance
V BATCO
T CCO
t COOFF
t RSBR
t RSBF
R OUT
I OUT =1μA
-
V BAT from 40mV above to
20mV below V BATCO
I OUT =1μA
I OUT =1mA
V BAT =4.1V
V BAT =4.1V
-
2.75
+1
40
0.2
0.2
-
3.25
+2
-
2.0
2.0
2.5
V
mV/oC
ms
μs
μs
?
(2)
Dead time is the time period when the V OUT pin is floating. Size the holding capacitor accordingly.
Note: All specifications contained within this document are subject to change without notice
DS-72-04 Rev F
?2009-2013 Cymbet Corporation ? Tel: +1-763-633-1780 ? www.cymbet.com
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