ICL7660S Datasheet, PDF (3/9 Pages) Intersil Corporation – Super Voltage Converter

ICL7660S
Electrical Specifications V+ = 5V, T_A = 25^oC, OSC = Free running, Test Circuit Figure 12, Unless Otherwise Specified (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Oscillator Impedance
Z_OSC
V+ = 2V
V+ = 5V
-
1
-
MΩ
-
100
-
kΩ
NOTES:
3. Derate linearly above 50^oC by 5.5mW/^oC
4. In the test circuit, there is no external capacitor applied to pin 7. However, when the device is plugged into a test socket, there is usually a very
small but finite stray capacitance present, of the order of 5pF.
5. The Intersil ICL7660S can operate without an external diode over the full temperature and voltage range. This device will function in existing
designs which incorporate an external diode with no degradation in overall circuit performance.
6. All significant improvements over the industry standard ICL7660 are highlighted.
Typical Performance Curves (Test Circuit Figure 12)
12
10
8
SUPPLY VOLTAGE RANGE
(NO DIODE REQUIRED)
6
4
2
0
-55
-25
0
25
50
TEMPERATURE (^oC)
FIGURE 1. OPERATING VOLTAGE AS A
FUNCTION OF TEMPERATURE
100
125
250
T_A = 125^oC
200
T_A = 25^oC
150
T_A = -55^oC
100
50
0
0
2
4
6
8
10
12
SUPPLY VOLTAGE (V)
FIGURE 2. OUTPUT SOURCE RESISTANCE AS A
FUNCTION OF SUPPLY VOLTAGE
350
300
250
200 _{IOUT = 20mA,}
V+ = 5V
150
100
I_OUT = 3mA,
V+ = 2V
I_OUT = 20mA,
V+ = 5V
50
0
-50 -25
I_OUT = 20mA,
V+ = 12V
0
25
50
75 100 125
TEMPERATURE (^oC)
FIGURE 3. OUTPUT SOURCE RESISTANCE AS A
FUNCTION OF TEMPERATURE
98
96
V+ = 5V
94
T_A = 25^oC
I_OUT = 1mA
92
90
88
86
84
82
80
100
1k
10k
50k
OSC FREQUENCY F_OSC (Hz)
FIGURE 4. POWER CONVERSION EFFICIENCY AS A
FUNCTION OF OSCILLATOR FREQUENCY
3-38