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MC44603DW Datasheet(PDF) 5 Page - ON Semiconductor |
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MC44603DW Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 24 page MC44603 5 MOTOROLA ANALOG IC DEVICE DATA Representative Block Diagram This device contains 243 active transistors. S RF Stby Rref RF Stby Vref 15 16 Reference Block Vref Iref + VCC VCC 1 14.5 V/7.5 V Vaux 18.0 V To Power Transforme VC 2 Output 3 Gnd 4 OVP 6 Current Sense Input 7 VCC Vref VOVP Out 2.0 µs Delay Vref 5.0 µs Delay + 2.5 V ROVP 11.6 k 2.0 k VCC + 9.0 V SS/Dmax/VM 2.4 V RSS CSS 11 1.0 V Demag Detect 8 Sync Input 9 Vref + + + 65 mV 3.7 V 1.0 V 0.4 Iref CT 10 RPwr Stby 12 Feed– back 14 Compen– sation 13 Foldback Input 5 1.6 V 3.6 V + CT 0.7 V VDemag Out Synchro VOSC prot 0.4 Iref Vref Vref Vref Vref Vref 0.4 Iref 0.6 Iref 0.8 Iref 0.25 IF Stby 0.2 Iref IDischarge IDischarge/2 Current Mirror X2 0.4 Iref Vref 2R VCC 1.0 mA Error Amplifier R Q S R Q S R Q S R Q = Sink only = Positive True Logic + 2.5 V Thermal Shutdown IF Stby UVLO2 VOSC + 1.6 V UVLO1 5.0 mA Negative Active Clamp |
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