RTCs with Constant-Voltage Trickle Charger
ABSOLUTE MAXIMUM RATINGS
Voltage Range on V
Pin Relative to Ground .....-0.3V to +6.0V
Lead Temperature (soldering, 10s) .................................+260°C
(Note: EDIP is hand or wave-soldered only.)
CC
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range
Soldering Temperature (reflow)
EDIP, BGA ........................................................-40°C to +85°C
SO...................................................................-55°C to +125°C
SO .................................................................................+260°C
BGA...............................................................................+240°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V = V
to V
, T = -40°C to +85°C, unless otherwise noted.) (Note 1)
CC(MAX)
A
CC
CC(MIN)
PARAMETER
Supply Voltage (Note 2)
Input Voltage
SYMBOL
CONDITIONS
MIN
2.97
4.5
TYP
3.3
MAX
3.63
5.5
UNITS
-33
-5
V
CC
V
5.0
V
BACKUP
V
(Note 2)
(Note 2)
2.0
V
V
BACKUP
OUT
(DS12R885 Only)
V
CC
+
Input Logic 1
V
2.2
V
V
IH
0.3
Input Logic 0
V
(Note 2)
-33
-0.3
+0.8
2
IL
0.7
0.8
V
CC
Power-Supply Current
I
mA
CC1
(Note 3)
-5
2
-5
0.250
0.140
0.5
V
CC
Standby Current (Note 4)
I
mA
CCS
-33
0.3
Input Leakage
I
-1.0
-1.0
-1.0
-1.0
+1.0
+1.0
+500
μA
μA
IL
I/O Leakage
I
(Note 5)
(Note 6)
(Note 2)
(Note 2)
-33
OL
Input Current
I
μA
5C/DS12R87
MOT
Output Current at 2.4V
Output Current at 0.4V
I
mA
mA
OH
I
4.0
2.97
4.5
OL
2.7
2.88
4.33
Power-Fail Voltage (Note 2)
VRT Trip Point
V
V
V
PF
-5
4.05
-33
VRT
1.3
TRIP
-5
Trickle-Charger Current-Limiting
Resistor
R1
DS12R885 Only
DS12R885 Only
10
kꢀ
Trickle-Charger Output Voltage
V
3.05
V
OUT
2
_____________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
