MC44603 Datasheet, PDF (11/24 Pages) ON Semiconductor – MIXED FREQUENCY MODE GREENLINE PWM CONTROLLER

MC44603
Figure 27. Starting Behavior and Overvoltage Management
VCC
VCC _prot
Vstup–th
Vdisable1
Vdisable2
No–Take Over
Startup
Restart
Loop Failure
>2.0 µs
Normal Mode
Vref
UVLO1
VPin ₁₁
(Soft–Start)
VOVP _Out
Output ÏÏÏÏÏÏ ÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏÏ ÏÏÏÏÏÏÏÏÏ
ICC
17 mA
0.3 mA
VDemag _In
Output
(Pin 3)
VDemag _Out
Figure 28. Demagnetization
VDemag _In
Demagnetization
Management
VDemag _Out
Oscillator
MOTOROLA ANALOG IC DEVICE DATA
Buffer Output
11