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MFG:MOT  Package Cooled:DIP  

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Part Number: MC34065

 

MFG: MOT

Package Cooled: DIP

 

Description: The MC34065 is a high performance, fixed frequency, dual current modecontrollers. It is specifically d...


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MC34065 General Description


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.

 

MC34065 Maximum Ratings

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
IIL

 

     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
145

1.25
100

 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

MC34065 datasheet

MC34065
PDF/DataSheet Download

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