ICL7662 Ver la hoja de datos (PDF) - Renesas Electronics
Número de pieza
componentes Descripción
Fabricante
ICL7662 Datasheet PDF : 11 Pages
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ICL7662
Typical Performance Curves (See Figure 14, Test Circuit)
190
170
LV = GND
150
TILA==2205moAC
COSC = 0pF
130
110
90
70
50
LV = OPEN
30
0 2 4 6 8 10 12 14 16 18 20
V+ (V)
FIGURE 1. OUTPUT SOURCE RESISTANCE AS A
FUNCTION OF SUPPLY VOLTAGE
180
170
160
150
140
130
120
110
100
90
80
70
60
50
-55
-20 0 25
70
TEMPERATURE (oC)
V+ = 5V
IL = 3mA
V+ = 15V
IL = 20mA
125
FIGURE 3. OUTPUT SOURCE RESISTANCE AS A
FUNCTION OF TEMPERATURE
11 RL =
10 TA = 25oC
9 COSC = 0pF
8
7
6
5
LV = GND
4
3
LV = OPEN
2
0 2 4 6 8 10 12 14 16 18 20
SUPPLY VOLTAGE (V)
FIGURE 5. OSClLLATOR FREQUENCY vs SUPPLY VOLTAGE
NOTE: All typical values have been characterized but are not tested.
190
IL = 3mA
170
LV = GND
TA = 25oC
COSC = 0pF
150
130
110
90
70
LV = OPEN
50
30
0 2 4 6 8 10 12 14 16 18 20
V+ (V)
FIGURE 2. OUTPUT SOURCE RESISTANCE AS A
FUNCTION OF SUPPLY VOLTAGE
100
350
95
300
90
85 PEFF
80
250
200
RO
150
75
70
65
100
100
V+ = 5V
IL = 3mA
50
TA = 25oC
1K
10K
FOSC (Hz)
100K
FIGURE 4. POWER CONVERSION EFFICIENCY AND
OUTPUT SOURCE RESISTANCE AS A
FUNCTION OF OSCILLATOR FREQUENCY
10K
V+ = 15V
TA = 25oC
RL =
1K
100
10
1
10
100
1000
10K
COSC (pF)
FIGURE 6. FREQUENCY OF OSCILLATION AS A FUNCTION
OF EXTERNAL OSCILLATOR CAPACITANCE
FN3181 Rev.4.00
Jan 9, 2006
Page 4 of 11
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