MC34262, MC33262
http://onsemi.com
4
1.4
-0.2
3.8
0.6
2.2
3.0
V
Pin
2
= 2.0 V
V
CC
= 12 V
T
A
= 25癈
V
M
, MULTIPLIER PIN 3 INPUT VOLTAGE (V)
Figure 2. Current Sense Input Threshold
versus Multiplier Input
-0.12
V
M
, MULTIPLIER PIN 3 INPUT VOLTAGE (V)
-0.06
0.06
0.12
0.18
0.24
0
V
CC
= 12 V
T
A
= 25癈
Figure 3. Current Sense Input Threshold
versus Multiplier Input, Expanded View
0.2
0
1.6
0.08
1.4
1.2
1.0
0.8
0.6
0.4
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
V
Pin
2
= 3.75 V
V
Pin
2
= 2.25 V
V
Pin
2
= 2.5 V
V
Pin
2
= 2.75 V
V
Pin
2
= 3.0 V
V
Pin
2
= 2.25 V
V
Pin
2
= 2.5 V
V
Pin
2
= 3.75 V
V
Pin
2
= 2.75 V
V
Pin
2
= 2.0 V
V
Pin
2
= 3.25 V
V
Pin
2
= 3.0 V
V
Pin
2
= 3.25 V
V
Pin
2
= 3.5 V
V
Pin
2
= 3.5 V
Figure 4. Voltage Feedback Input Threshold
Change versus Temperature
Figure 5. Overvoltage Comparator Input
Threshold versus Temperature
V
CC
= 12 V
-55
T
A
, AMBIENT TEMPERATURE (癈)
-25
0
25
50
75
100
Figure 6. Error Amp Transconductance and
Phase versus Frequency
-55
T
A
, AMBIENT TEMPERATURE (癈)
-25
0
25
50
75
100
125
V
CC
= 12 V
Pins 1 to 2
Figure 7. Error Amp Transient Response
125
3.0 k
10 k
30 k
100 k 300 k
1.0 M
3.0 M
0
90
60
30
120
150
180
f, FREQUENCY (Hz)
V
CC
= 12 V
V
O
= 2.5 V to 3.5 V
R
L
= 100 k to 3.0 V
C
L
= 2.0 pF
T
A
= 25癈
5.0 ms/DIV
Transconductance
Phase
V
CC
= 12 V
R
L
= 100 k
C
L
= 2.0 pF
T
A
= 25癈
110
109
108
106
107
4.0
-4.0
-12
-16
0
-8.0
120
100
80
60
40
20
0
4.00 V
3.25 V
2.50 V
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