MC33363B Motorola, MC33363B Datasheet - Page 3

• Manufacturer Part Number: MC33363B
• Description: HIGH VOLTAGE OFF-LINE SWITCHING REGULATOR
• Manufacturer: Motorola

ELECTRICAL CHARACTERISTICS (continued)
for min/max values T J is the operating junction temperature range that applies (Note 2), unless otherwise noted.)
OVERVOLTAGE DETECTION (Pin 11)
PWM COMPARATOR (Pins 7, 9)
POWER SWITCH (Pin 16)
OVERCURRENT COMPARATOR (Pin 16)
STARTUP CONTROL (Pin 1)
UNDERVOLTAGE LOCKOUT (Pin 3)
TOTAL DEVICE (Pin 3)
NOTES: 3. The device can only guarantee to start up at high temperature below +115 C.
MOTOROLA ANALOG IC DEVICE DATA
Input Threshold Voltage
Input Bias Current (V in = 2.6 V, T J = –25 – 125 C)
Duty Cycle
Drain–Source On–State Resistance (I D = 200 mA)
Drain–Source Off–State Leakage Current
Rise Time
Fall Time
Current Limit Threshold (R T = 10 k)
Peak Startup Current (V in = 400 V) (Note 3)
Off–State Leakage Current (V in = 50 V, V CC = 20 V)
Startup Threshold (V CC Increasing)
Minimum Operating Voltage After Turn–On
Power Supply Current
1.0 M
500 k
200 k
100 k
Maximum (V FB = 0 V)
Minimum (V FB = 2.7 V)
T J = 25 C
T J = T low to T high
V DS = 650 V
V CC = 0 V
V CC = (V th(on) – 0.2 V)
Startup (V CC = 10 V, Pin 1 Open)
Operating
50 k
20 k
10 k
7.0
C T = 100 pF
C T = 200 pF
C T = 500 pF
C T = 1.0 nF
C T = 2.0 nF
C T = 5.0 nF
C T = 10 nF
10
Figure 1. Oscillator Frequency
versus Timing Resistor
R T , TIMING RESISTOR (k )
15
Characteristic
20
30
V CC = 20 V
T A = 25 C
50
(V CC = 20 V, R T = 10 k, C T = 390 pF, C Pin 8 = 1.0 F, for typical values T J = 25 C,
MC33363B
70
V CC(min)
0.15
DC (max)
R DS(on)
DC (min)
1.0
0.8
0.6
0.4
0.3
0.2
0.1
Symbol
V th(on)
I D(off)
I D(off)
I start
I CC
V th
I lim
7.0
I IB
t r
t f
Inductor supply voltage and inductance value are
adjusted so that I pk turn–off is achieved at 5.0 s.
Figure 2. Power Switch Peak Drain Current
10
2.47
Min
0.5
7.5
48
11
versus Timing Resistor
–
–
–
–
–
–
–
–
–
–
–
–
R T , TIMING RESISTOR (k )
15
20
0.72
15.2
0.25
Typ
100
2.6
0.2
2.0
2.0
9.5
3.2
50
15
50
50
40
0
–
30
Max
2.73
11.5
500
100
200
0.9
4.0
4.0
0.5
5.0
52
17
39
18
0
–
–
40
V CC = 20 V
C T = 1.0 F
T A = 25 C
50
Unit
mA
mA
nA
ns
ns
%
V
A
V
V
A
A
3
70