Preliminary
CBC34813 EnerChip™ RTC
POWER SUPPLY CURRENT CHARACTERISTICS OF INTEGRATED CBC910 POWER
MANAGEMENT CIRCUIT ONLY
Ta = -20ºC to +70ºC
CHARACTERISTIC
SYMBOL
CONDITION
MIN
MAX
UNITS
Quiescent Current
(CBC910 power
management circuit
VDD=3.3V
-
3.5
µA
ENABLE=GND
VDD=5.5V
VDD=3.3V
VDD=5.5V
-
-
-
6.0
35
38
µA
µA
µA
IQ
only; DD > VRESET ; RTC
V
ENABLE=VDD
current not included)
IQBATOFF
IQBATON
VBAT < VBATCO,
VOUT=0
-
0.5
nA
EnerChip Cutoff Current
(IQBATON adds to RTC
current when in backup
mode)
VBAT > VBATCO,
ENABLE=VDD, IOUT=0
-
42
nA
INTERFACE LOGIC SIGNAL CHARACTERISTICS
VDD = 2.5V to 5.5V, Ta = -20ºC to +70ºC
CHARACTERISTIC
SYMBOL
CONDITION
MIN
MAX UNITS
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
VIH
VIL
-
-
VDD - 0.5
-
0.5
-
Volts
Volts
Volts
-
VOH
VDD>VTH (see Figures 4
and 5) IL=10µA
VDD -
0.04V (1)
Low Level Output Voltage
VOL
IL = -100µA
0<VIN<VDD
-
0.3
Volts
Logic Input Leakage Current
IIN
-1.0
+1.0
nA
(1) RESET tracks VDD; RESET = VDD - (IOUT x ROUT).
RESET SIGNAL AC/DC CHARACTERISTICS
VDD = 2.5V to 5.5V, Ta = -20ºC to +70ºC
CHARACTERISTIC
SYMBOL
CONDITION
MIN
MAX
UNITS
VDD Rising to RESET
t
RESETH
V
DD rising from 2.8V TO 3.1V
60
200
ms
Rising
in <10µs
DD falling from 3.1V to 2.8V
in <100ns
VDD Falling to RESET
t
RESETL
V
0.5
2
µs
V
Falling
TRIP Voltage
VRESET
V
MODE=GND
2.85
3.15
VDD Rising
RESET Hysteresis
Voltage
VHYST
V
MODE=GND
45
75
mV
(VDD to RESET)
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DS-72-38 V.01
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