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MC33363A Datasheet(PDF) 3 Page - ON Semiconductor

Part No. MC33363A
Description  HIGH VOLTAGE OFF-LINE SWITCHING REGULATOR
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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MC33363A Datasheet(HTML) 3 Page - ON Semiconductor

 
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MC33363A
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (continued) (VCC = 20 V, RT = 10 k, CT = 390 pF, CPin 8 = 1.0 µF, for typical values TJ = 25°C,
for min/max values TJ is the operating junction temperature range that applies (Note 2), unless otherwise noted.)
Characteristic
Unit
Max
Typ
Min
Symbol
ERROR AMPLIFIER (Pins 9, 10)
Output Voltage Swing
High State (ISource = 100 µA, VFB < 2.0 V)
Low State (ISink = 100 µA, VFB > 3.0 V)
VOH
VOL
4.0
5.3
0.2
0.35
V
OVERVOLTAGE DETECTION (Pin 11)
Input Threshold Voltage
Vth
2.47
2.6
2.73
V
Input Bias Current (Vin = 2.6 V)
IIB
100
500
nA
PWM COMPARATOR (Pins 7, 9)
Duty Cycle
Maximum (VFB = 0 V)
Minimum (VFB = 2.7 V)
DC(max)
DC(min)
48
50
0
52
0
%
POWER SWITCH (Pin 16)
Drain–Source On–State Resistance (ID = 200 mA)
TJ = 25°C
TJ = Tlow to Thigh
RDS(on)
7.5
9.0
20
Drain–Source Off–State Leakage Current
TJ = 25°C to 125°C, VDS = 700 V
TJ = –25°C, VDS = 650 V
ID(off)
0.2
0.2
100
100
µA
Rise Time
tr
50
ns
Fall Time
tf
50
ns
OVERCURRENT COMPARATOR (Pin 16)
Current Limit Threshold (RT = 13 k)
Ilim
0.7
0.9
1.1
A
STARTUP CONTROL (Pin 1)
Peak Startup Current (Vin = 400 V)
VCC = 0 V
VCC = (Vth(on) – 0.2 V)
Istart
22
6.0
mA
Off–State Leakage Current (Vin = 50 V, VCC = 20 V)
ID(off)
40
200
µA
UNDERVOLTAGE LOCKOUT (Pin 3)
Startup Threshold (VCC Increasing)
Vth(on)
11
14.9
18
V
Minimum Operating Voltage After Turn–On
VCC(min)
7.5
9.5
11.5
V
TOTAL DEVICE (Pin 3)
Power Supply Current
Startup (VCC = 10 V, Pin 1 Open)
Operating
ICC
0.27
3.4
0.5
5.0
mA
7.0
1.0 M
Figure 1. Oscillator Frequency
versus Timing Resistor
RT, TIMING RESISTOR (kΩ)
Figure 2. Power Switch Peak Drain Current
versus Timing Resistor
500 k
200 k
100 k
50 k
20 k
10 k
10
15
20
30
50
VCC = 20 V
TA = 25°C
CT = 100 pF
CT = 200 pF
CT = 500 pF
CT = 1.0 nF
CT = 2.0 nF
CT = 5.0 nF
CT = 10 nF
70
VCC = 20 V
CT = 1.0 µF
TA = 25°C
Inductor supply voltage and inductance value are
adjusted so that Ipk turn–off is achieved at 5.0 µs.
RT, TIMING RESISTOR (kΩ)
1.5
0.8
0.6
0.4
0.2
0.15
7.0
10
15
20
30
40
70
50
0.3
1.0


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