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MFG:MOTOROLA


Part Number: MC33065
MFG: MOTOROLA
Description: The MC34065 is a high performance, fixed frequency, dual current modecontrollers. It is specifically d...
MFG:MOTOROLA


MFG: MOTOROLA
Description: The MC34065 is a high performance, fixed frequency, dual current modecontrollers. It is specifically d...
The MC34065 is a high performance, fixed frequency, dual current modecontrollers. It is specifically designed for offline and dctodc converterapplications offering the designer a cost effective solution with minimalexternal components. This integrated circuit feature a unique oscillator forprecise duty cycle limit and frequency control, a temperature compensatedreference, two high gain error amplifiers, two current sensing comparators,Drive Output 2 Enable pin, and two high current totem pole outputs ideallysuited for driving power MOSFETs.
Also included are protective features consisting of input and referenceundervoltage lockouts each with hysteresis, cyclebycycle current limiting,and a latch for single pulse metering of each output.
The MC34065 and MC33065 are available in dualinline and surfacemount packages.
| Rating | Symbol | Value | Unit |
| Total Power Supply and Zener Current | (ICC+ IZ) | 50 | mA |
| Output Current, Source or Sink (Note 1) | IO | 1.0 | A |
| Output Energy (Capacitive Load per Cycle) | W | 5.0 | J |
| Current Sense, Enable, and Voltage Feedback Inputs | Vin | 0.3 to +5.5 | V |
| Sync Input High State (Voltage) Low State (Reverse Current) |
VIH
|
5.5 5.0 |
V mA |
| Error Amp Output Sink Current | IO | 10 | mA |
| Power Dissipation and Thermal Characteristics DW Suffix, Plastic Package Case 751G Maximum Power Dissipation @ TA = 25 Thermal Resistance, JunctiontoAir P Suffix, Plastic Package Case 648 Maximum Power Dissipation @ TA = 25 Thermal Resistance, JunctiontoAir |
PD RJA PD RJA |
862 1.25 |
mW /W mW /W |
| Operating Junction Temperature | TJ | +150 | |
| Operating Ambient Temperature (Note 3) MC34065 MC33065 |
TA |
0 to +70 40 to +85 |
|
| Storage Temperature Range | Tstg | 65 to +150 |
MC33065
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