Preliminary
CBC34803 EnerChip™ RTC
POWER SUPPLY CURRENT CHARACTERISTICS OF INTEGRATED CBC910 POWER
MANAGEMENT CIRCUIT ONLY
Ta = -20ºC to +70ºC
CHARACTERISTIC
Quiescent Current
(CBC910 power
management circuit
only;
V
DD
>
V
RESET
; RTC
current not included)
EnerChip Cutoff Current
(I
QBATON
adds to RTC
current when in backup
mode)
SYMBOL
I
Q
CONDITION
ENABLE=GND
ENABLE=V
DD
V
DD
=3.3V
V
DD
=5.5V
V
DD
=3.3V
V
DD
=5.5V
MIN
-
-
-
-
-
-
MAX
3.5
6.0
35
38
0.5
42
UNITS
µA
µA
µA
µA
nA
nA
I
QBATOFF
I
QBATON
V
BAT <
V
BATCO
,
V
OUT
=0
V
BAT >
V
BATCO
,
ENABLE=V
DD
, I
OUT
=0
INTERFACE LOGIC SIGNAL CHARACTERISTICS
V
DD
= 2.5V to 5.5V, Ta = -20ºC to +70ºC
CHARACTERISTIC
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
Logic Input Leakage Current
(1)
SYMBOL
V
IH
V
IL
V
OH
V
OL
I
IN
CONDITION
-
-
V
DD
>V
TH
(see Figures 4
and 5) I
L
=10µA
I
L
= -100µA
0<V
IN
<V
DD
MIN
V
DD
- 0.5
-
V
DD
-
0.04V
(1)
-
-1.0
MAX
-
0.5
-
0.3
+1.0
UNITS
Volts
Volts
Volts
Volts
nA
RESET tracks V
DD
; RESET = V
DD
- (I
OUT
x R
OUT
).
RESET SIGNAL AC/DC CHARACTERISTICS
V
DD
= 2.5V to 5.5V, Ta = -20ºC to +70ºC
CHARACTERISTIC
V
DD
Rising to RESET
Rising
V
DD
Falling to RESET
Falling
TRIP Voltage
V
DD
Rising
RESET Hysteresis
Voltage
(V
DD
to RESET)
SYMBOL
t
RESETH
t
RESETL
V
RESET
CONDITION
V
DD
rising from 2.8V TO 3.1V
in <10µs
V
DD
falling from 3.1V to 2.8V
in <100ns
V
MODE
=GND
MIN
60
0.5
2.85
MAX
200
2
3.15
UNITS
ms
µs
V
V
HYST
V
MODE
=GND
45
75
mV
DS-72-34 V.09
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