MC33232
http://onsemi.com
8
Figure 2. Overvoltage Comparator Input
Threshold versus Temperature
Figure 3. Undervoltage Lockout Thresholds
versus Temperature
Figure 4. Voltage Feedback Input Threshold
Change versus Temperature
Figure 5. Restart Timer Delay
versus Temperature
-50
110
T
A
, AMBIENT TEMPERATURE (癈)
109
107
106
-25
0
25
50
100
108
-50
T
A
, AMBIENT TEMPERATURE (癈)
10
-10
-20
-25
0
25
50
75
100
0
-50
1200
T
A
, AMBIENT TEMPERATURE (癈)
1000
900
800
700
-25
0
25
50
75
100
75
-50
20
T
A
, AMBIENT TEMPERATURE (癈)
18
14
12
10
8
-25
0
25
50
100
16
75
20
1100
Figure 6. Output Saturation Voltage
versus Load Current
Figure 7. Zero Current Detector Input
Threshold versus Temperature
0
I
O
, OUTPUT LOAD CURRENT (mA)
2
0
-2
-4
80
160
240
320
-50
1.7
T
A
, AMBIENT TEMPERATURE (癈)
1.5
1.4
1.3
-25
0
25
50
75
100
1.6
V
CC
 = 12 V
Minimum Operating Threshold
(V
CC
 Decreasing)
Startup Threshold
(V
CC
 Increasing)
V
CC
 = 12 V
Pins 1 to 2
V
CC
 = 12 V
Sink Saturation
(Load to Ground)
Source Saturation
(Load to V
CC
)
V
CC
 = 12 V
Lower Threshold
(V
in
 Decreasing)
Upper Threshold
(V
in
 Increasing)
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