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MC33363A Datasheet, PDF (3/12 Pages) ON Semiconductor – HIGH VOLTAGE OFF-LINE SWITCHING REGULATOR | |||
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MC33363A
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
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ ERROR AMPLIFIER (Pins 9, 10)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Output Voltage Swing
High State (ISource = 100 µA, VFB < 2.0 V)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà Low State (ISink = 100 µA, VFB > 3.0 V)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ OVERVOLTAGE DETECTION (Pin 11)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Input Threshold Voltage
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Input Bias Current (Vin = 2.6 V)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ PWM COMPARATOR (Pins 7, 9)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Duty Cycle
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Maximum (VFB = 0 V)
Minimum (VFB = 2.7 V)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ POWER SWITCH (Pin 16)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ DrainâSource OnâState Resistance (ID = 200 mA)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà TJ = 25°C
TJ = Tlow to Thigh
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ DrainâSource OffâState Leakage Current
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà TJ = 25°C to 125°C, VDS = 700 V
à ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà TJ = â25°C, VDS = 650 V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Rise Time
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Fall Time
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ OVERCURRENT COMPARATOR (Pin 16)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Current Limit Threshold (RT = 13 k)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ STARTUP CONTROL (Pin 1)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Peak Startup Current (Vin = 400 V)
VCC = 0 V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VCC = (Vth(on) â 0.2 V)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ OffâState Leakage Current (Vin = 50 V, VCC = 20 V)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ UNDERVOLTAGE LOCKOUT (Pin 3)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Startup Threshold (VCC Increasing)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Minimum Operating Voltage After TurnâOn
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ TOTAL DEVICE (Pin 3)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Power Supply Current
Startup (VCC = 10 V, Pin 1 Open)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Operating
Symbol
Min
VOH
4.0
VOL
â
Vth
2.47
IIB
â
DC(max)
48
DC(min)
â
RDS(on)
â
â
ID(off)
â
â
tr
â
tf
â
Ilim
0.7
Istart
â
â
ID(off)
â
Vth(on)
11
VCC(min)
7.5
ICC
â
â
Typ
5.3
0.2
2.6
100
50
0
7.5
â
0.2
0.2
50
50
0.9
22
6.0
40
14.9
9.5
0.27
3.4
Max
Unit
V
â
0.35
2.73
V
500
nA
%
52
0
â¦
9.0
20
µA
100
100
â
ns
â
ns
1.1
A
mA
â
â
200
µA
18
V
11.5
V
mA
0.5
5.0
Figure 1. Oscillator Frequency
versus Timing Resistor
1.0 M
CT = 100 pF
500 k CT = 200 pF
VCC = 20 V
TA = 25°C
200 k CT = 500 pF
100 k CT = 1.0 nF
50 k CT = 2.0 nF
20 k CT = 5.0 nF
10 k CT = 10 nF
7.0
10
15 20
30
RT, TIMING RESISTOR (kâ¦)
50
70
Figure 2. Power Switch Peak Drain Current
versus Timing Resistor
1.5
VCC = 20 V
1.0
CT = 1.0 µF
TA = 25°C
0.8
0.6
0.4
0.3
0.2 Inductor supply voltage and inductance value are
adjusted so that Ipk turnâoff is achieved at 5.0 µs.
0.15
7.0
10
15 20
30 40 50
70
RT, TIMING RESISTOR (kâ¦)
MOTOROLA ANALOG IC DEVICE DATA
3
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