MC44608_06 Datasheet, PDF (11/15 Pages) ON Semiconductor – Few External Components Reliable and Flexible SMPS Controller

MC44608
60
79.0
50
77.0
t_rise
75.0
40
t_fall
73.0
30
71.0
69.0
20
67.0
10
65.0
10
11
12
13
14
15
10
Pin6 V_CC Voltage (V)
Figure 9. Output Switching Speed
−25° C
85° C
25° C
11
12
13
14
15
V_CC Voltage (V)
Figure 10. Frequency Stability
90
80
70
60
50 _{85° C}
40
30
−25° C
20
25° C
10
0
0.0
0.5
1.0
1.5
2.0
2.5
Current Injected in Pin3 (mA)
Figure 11. Duty Cycle Control
5.0
4.5
4.0
−25° C
3.5
25° C
3.0
2.5
85° C
2.0
1.5
−1.6 −1.4 −1.2 −1.0 −.08 −.06 −.04 −.02 0.0
Current Injected in Pin 3 (mA)
Figure 13. Vpin3 During the Latched Off Period
5.08
5.07
5.06
5.05
5.04
85° C
5.03
25° C
5.02
5.01
−25° C
5.00
4.99
4.98
0.5
1
1.5
2
2.5
Current Injected in Pin 3 (mA)
Figure 12. Vpin3 During the Working Period
4.80
4.60
4.40
−25° C
4.20
4.00
25° C
3.80
3.60
3.40
85° C
3.20
3.00
10
11
12
13
14
15
Pin6 V_CC Voltage (V)
Figure 14. Device Consumption when Switching
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11