DS12CR885 Datasheet, PDF (2/22 Pages) Maxim Integrated Products – RTC with Constant-Voltage Trickle Charger

RTC with Constant-Voltage Trickle Charger
ABSOLUTE MAXIMUM RATINGS
Voltage Range on V_CC Pin Relative to Ground .....-0.3V to +6.0V
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature .......................................See IPC/JEDEC
J-STD-020A Specification
Soldering Temperature (leads, 10s) ................................+260°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_CC = V_CC(MIN) to V_CC(MAX), T_A = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage (Note 2)
-33
V_CC
-5
V_BACKUP Input Voltage
(DS12R885 Only)
V_BACKUP (Note 2)
Input Logic 1
Input Logic 0
V_CC Power-Supply Current
(Note 3)
V_CC Standby Current (Note 4)
Input Leakage
I/O Leakage
Input Current
Output Current at 2.4V
Output Current at 0.4V
Power-Fail Voltage (Note 2)
VRT Trip Point
Trickle-Charger Current-Limiting
Resistor
Trickle-Charger Output Voltage
V_IH
(Note 2)
V_IL
I_CC1
I_CCS
I_IL
I_OL
I_MOT
I_OH
I_OL
V_PF
VRT_TRIP
(Note 2)
-33
-5
-5
-33
(Note 5)
(Note 6)
(Note 2)
(Note 2)
-33
-5
-33
-5
R1
DS12R885 Only
V_OUT DS12R885 Only
MIN TYP MAX UNITS
2.97
3.3
3.63
V
4.5
5.0
5.5
2.0
V_OUT
V
2.2
V_CC +
V
0.3
-0.3
+0.8
V
0.7
2
mA
0.8
2
0.250 0.5
mA
0.140 0.3
-1.0
+1.0
µA
-1.0
+1.0
µA
-1.0
+500
µA
-1.0
mA
4.0
mA
2.7
2.88 2.97
V
4.05 4.33 4.5
1.3
V
10
kΩ
3.05
V
2 _____________________________________________________________________