Specifications Rating Symbol Value Unit Power Supply Voltage VCC 20 V Output Current, Source or Sink (Note 1) IO 400 mA 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 InputHigh State (V...
MC33065H,L: Specifications Rating Symbol Value Unit Power Supply Voltage VCC 20 V Output Current, Source or Sink (Note 1) IO 400 mA Output Energy (Capacitive Load per Cycle) W 5.0 J ...
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Rating | Symbol | Value | Unit |
Power Supply Voltage | VCC | 20 | V |
Output Current, Source or Sink (Note 1) | IO | 400 | mA |
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°C 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 |
The MC34065H,L series are high performance, fixed frequency, dualcurrent mode controllers. MC34065H,L series are specifically designed for offline anddctodc converter applications offering the designer a cost effectivesolution with minimal external components. These MC34065H,L series feature unique oscillator for precise duty cycle limit and frequency control, atemperature compensated reference, two high gain error amplifiers, twocurrent sensing comparators, Drive Output 2 Enable pin, and two highcurrent totem pole outputs ideally suited for driving power MOSFETs.
MC34065H,L series include protective features consisting of input and referenceundervoltage lockouts each with hysteresis, cyclebycycle current limiting,and a latch for single pulse metering of each output. These devices areavailable in dualinline and surface mount packages.
The MC34065H has UVLO thresholds of 14 V (on) and 10 V (off), ideallysuited for offline converters. TheMC34065L is tailored for lower voltageapplications having UVLO thresholds of 8.4 V (on) and 7.8 V (off).