ISL12023 Datasheet, PDF (7/28 Pages) Intersil Corporation – Low Power RTC with Battery-Backed SRAM and Embedded Temp Compensation ±5ppm with Auto Daylight Saving

ISL12023
Typical Performance Curves Temperature is +25°C unless otherwise specified.
1050
1600
1000
1400
950
900
850
800
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V_BAT VOLTAGE (V)
FIGURE 2. I_BAT vs V_BAT
1200
V_BAT = 5.5V
1000
V_BAT = 3.0V
800
V_BAT = 1.8V
600
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 3. I_BAT vs TEMPERATURE
6
5
V_BAT = 5.5V
4
V_DD = 2.7V
3
V_DD = 3.3V
2
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 4. I_DD1 vs TEMPERATURE
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.7
3.2
3.7
4.2
4.7
5.2
V_DD (V)
FIGURE 5. I_DD1 vs V_DD
6
5
V_DD = 5.5V
4
3
V_DD = 3.3V
V_DD = 2.7V
2
0.01
0.1
1
10
100
1k
FREQUENCY OUTPUT (Hz)
FIGURE 6. F_OUT vs I_DD
10k 100k
5.5
5.0
4.5
F_OUT = 32kHz
4.0
3.5
F_OUT = 1Hz and 64Hz
3.0
2.5-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 7. I_DD vs TEMPERATURE, 3 DIFFERENT F_OUT
7
FN6682.2
June 24, 2009