MC44603 Datasheet, PDF (7/24 Pages) ON Semiconductor – MIXED FREQUENCY MODE GREENLINE PWM CONTROLLER

MC44603
500
475
450
425
400
375
350
325
300
–50
Figure 7. Oscillator Discharge Current
versus Temperature
VCC = 12 V
Rref = 10 k
CT = 820 pF
–25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (°C)
Figure 8. Source Output Saturation Voltage
versus Load Current
2.5
2.0
1.5
VCC = 12 V
Rref = 10 k
1.0
CT = 820 pF
TA = 25°C
0
100
200
300
400
500
Isource, OUTPUT SOURCE CURRENT (mA)
Figure 9. Sink Output Saturation Voltage
versus Sink Current
2.0
Sink Saturation
1.6 ^{(Load to VCC)}
1.2
0.8
TA = 25°C
0.4
VCC = 12 V
80 µs Pulsed Load
120 Hz Rate
0
0
100
200
300
400
500
Isink, SINK OUTPUT CURRENT (mA)
Figure 10. Error Amplifier Gain and Phase
versus Frequency
80
VCC = 12 V
G = 10
60
Vin = 30 mV
140
VO = 2.0 to 4.0 V
RL = 100 k
40
TA = 25°C
20
50
0
–20
–40
1.0
10
100
1000
f, FREQUENCY (kHz)
Figure 11. Voltage Feedback Input
versus Temperature
2.60
VCC = 12 V
G = 10
2.55
VO = 2.0 to 4.0 V
RL = 100 k
2.50
2.45
2.40
–50
–25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (°C)
Figure 12. Demag Comparator Threshold
versus Temperature
80
75
VCC = 12 V
70
65
60
55
50
–50
–25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (°C)
MOTOROLA ANALOG IC DEVICE DATA
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