NTE7079
Integrated Circuit
Hybrid Switching Voltage Regulator

Absolute Maximum Ratings:
Peak Input Voltage, VIN     850V
Input Current, IIN
            Continuous
            Pulse
    6A
12A
Maximum Output Current (VO = 115V), IO     1.3A
Power Dissipation (TC = +100°C), PD     27W
Power Transistor Junction Temperature, TJ     +150°C
Operating Temperature Range (TC), Topr     -20° to +125°C
Storage Temperature Range, Tstg     -30° to +125°C

Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage VO VIN = 220V, IO = 900mA, Note 2 108.5 110.0 111.5 V
Sensing Voltage (Fixed Voltage) VO IIn = 7mA 41.3 41.8 42.3 V
Line Regulation RegLINE VIN = 180V to 280V, IO = 900mA Initial Value ±1 V
Load Regulation RegLOAD VIN = 220V, IO = 550mA to 900mA Initial Value ±2 V
Output Voltage Temperature Coefficient   TC = -20° to +100°C, IIn = 7mA - ±2 - mV/°C
Saturation Voltage VCE(sat) IC = 3A, IB = 600mA - - 0.4 V
VBE(sat) IC = 3A, IB = 600mA - - 1.5 V
DC Current Gain hFE IC = 1A, VCE = 4V 15 - 38  
Collector Cutoff Current ICEX VCE = 850V, VBE = 1.5V - - 1 mA
Power Transistor Thermal Resistance RthJC Between Junction and Stem Upper Surface - 1.8 - °C/W
Switching Time ts IC = 3A, IB1 = 500mA, IB2 = -500mA,
RL = 67 Ohms
- - 11.0 µs
tf - - 0.5 µs

Note 1.Recommended Case Temperature: Topr = +100°C.
Note 2.Output voltage is determined by the ratio between the sensing winding "D" and the secondary winding "S".

Pin Connection Diagram
Pin Connection Diagram
Straight LeadsFormed Leads
Note: You may receive either case style.

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