Datasheet

5
FN3072.7
October 10, 2005
FIGURE 3. OUTPUT SOURCE RESISTANCE AS A FUNCTION
OF TEMPERATURE
FIGURE 4. POWER CONVERSION EFFICIENCY AS A
FUNCTION OF OSC. FREQUENCY
FIGURE 5. FREQUENCY OF OSCILLATION AS A FUNCTION
OF EXTERNAL OSC. CAPACITANCE
FIGURE 6. UNLOADED OSCILLATOR FREQUENCY AS A
FUNCTION OF TEMPERATURE
FIGURE 7. OUTPUT VOLTAGE AS A FUNCTION OF OUTPUT
CURRENT
FIGURE 8. SUPPLY CURRENT AND POWER CONVERSION
EFFICIENCY AS A FUNCTION OF LOAD
CURRENT
Typical Performance Curves (Test Circuit of Figure 11) (Continued)
350
300
250
200
150
100
50
0
-55 -25 0 25 50 75 100 125
TEMPERATURE (
°C)
OUTPUT SOURCE RESISTANCE (Ω)
I
OUT
= 1mA
V+ = +2V
V+ = 5V
POWER CONVERSION EFFICIENCY (%)
T
A
= 25°C
I
OUT
= 1mA
I
OUT
= 15mA
100
98
96
94
92
90
88
86
84
82
80
100 1K 10K
OSC. FREQUENCY f
OSC
(Hz)
V+ = +5V
OSCILLATOR FREQUENCY f
OSC
(Hz)
10K
1K
100
10
V+ = 5V
T
A
= 25°C
1.0 10 100 1000 10K
C
OSC
(pF)
20
18
16
14
12
10
8
6
-50 -25 0 25 50 75 100 125
OSCILLATOR FREQUENCY f
OSC
(kHz)
TEMPERATURE (°C)
V+ = +5V
T
A
= 25°C
V+ = +5V
5
4
3
2
1
0
-1
-2
-3
-4
-5
OUTPUT VOLTAGE
LOAD CURRENT I
L
(mA)
SLOPE 55Ω
0 1020304050607080
P
EFF
I
+
T
A
= 25°C
V
+
= +5V
SUPPLY CURRENT I+ (mA)
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0 102030405060
POWER CONVERSION EFFICIENCY (%)
LOAD CURRENT I
L
(mA)
ICL7660, ICL7660A