MFG:MOTOROLA Package Cooled:DIP D/C:04+
MFG: MOTOROLA
Package Cooled: DIP
D/C: 04+
Description: The MC44604 is an enhanced high performance controller that is specifically designed for offline and d...
The MC44604 is an enhanced high performance controller that is specifically designed for offline and dctodc converter applications. Its high current totem pole output is ideally suited for driving a power MOSFET.
The MC44604 is an evolution of the MC44603A. Like the MC44603A, the MC44604 has been optimized to operate with
universal ac mains voltage from 80 V to 280 V. It also offers enhanced safety and reliable power management thanks to its protection features (foldback, overvoltage detection, softstart, accurate demagnetization detection).
In addition, the MC44604 offers a new efficient way to reduce the standby operating power by means of a socalled pulsed modestandby operation of the converter, significantly reducing the converter consumption in standby mode.
|
Rating |
Pin # |
Symbol |
Value |
Unit |
| Total Power Supply and Zener Current |
(ICC + IZ) |
30 |
mA | |
| Output Supply Voltage with Respect to Ground |
2 1 |
VC VCC |
18 |
V |
| Output Current* Source Sink |
3 |
IO(Source) IO(Sink) |
-750 750 |
mA |
| Output Energy (Capacitive Load per Cycle) |
W |
5.0 |
J | |
| SoftStart |
11 |
VSS |
0.3 to 2.2 |
V |
| Clamp Error Amp Input |
12 |
VCLEA |
0.3 to 4.5 |
V |
| Foldback Input, Standby Management |
0.3 to VCC + 0.3 |
V | ||
| Overvoltage Protection, Current Sense Input, Rref, Error Amp Input, Error Amp Output, CT, Standby Current Set |
Vin |
0.3 to 5.5 |
V | |
| Demagnetization Detection Input Current Source Sink |
8 |
Idemagib (Source) Idemagib (Sink) |
4.0 10 |
mA |
| Error Amplifier Output Sink Current |
13 |
IE/A (Sink) |
20 |
mA |
| Power Dissipation and Thermal Characteristics Maximum Power Dissipation at TA = 85 Thermal Resistance, JunctiontoAir |
PD RJA |
0.6 100 |
W /W | |
| Operating Junction Temperature |
TJ |
150 |
||
| Operating Ambient Temperature |
TA |
25 to +85 |
MC44604
PDF/DataSheet Download
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