ICL7660 Datasheet, PDF (4/10 Pages) Intersil Corporation – CMOS Voltage Converters

Typical Performance Curves (Test Circuit of Figure 11) (Continued)
350
300
250
200
150
100
50
0
-55
-25
I_OUT = 1mA
V+ = +2V
V+ = 5V
0
25
50
75
TEMPERATURE (^oC)
100 125
FIGURE 3. OUTPUT SOURCE RESISTANCE AS A FUNCTION
OF TEMPERATURE
100 _{TA = 25oC}
98
96
I_OUT = 1mA
94
92
90
I_OUT = 15mA
88
86
84
82
V+ = +5V
80
100
1K
10K
OSC. FREQUENCY f_OSC (Hz)
FIGURE 4. POWER CONVERSION EFFICIENCY AS A
FUNCTION OF OSC. FREQUENCY
10K
1K
100
V+ = 5V
T_A = 25^oC
10
1.0
10
100
1000
10K
C_OSC (pF)
FIGURE 5. FREQUENCY OF OSCILLATION AS A FUNCTION
OF EXTERNAL OSC. CAPACITANCE
5
T_A = 25^oC
4 _{V+ = +5V}
3
2
1
0
-1
-2
-3
-4
SLOPE 55
-5
0
10
20
30
40
50
60
70 80
LOAD CURRENT I_L (mA)
FIGURE 7. OUTPUT VOLTAGE AS A FUNCTION OF OUTPUT
CURRENT
20
18
16
14
12
10
8
V+ = +5V
6
-50 -25
0
25
50
75 100
125
TEMPERATURE (^oC)
FIGURE 6. UNLOADED OSCILLATOR FREQUENCY AS A
FUNCTION OF TEMPERATURE
100
90
80
70
60
50
40
30
20
10
0
0
P_EFF
10
100
I⁺
90
80
70
60
50
40
30
20
T_A = 25^oC
V⁺ = +5V
10
0
20
30
40
50
60
LOAD CURRENT I_L (mA)
FIGURE 8. SUPPLY CURRENT AND POWER CONVERSION
EFFICIENCY AS A FUNCTION OF LOAD
CURRENT