NTE7079
Integrated Circuit
Hybrid Switching Voltage Regulator
Absolute Maximum Ratings:
Maximum Peak Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 850V
Input Current, I
IN
Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A
Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12A
Maximum Output Current (V
O
= 115V), I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3A
Power Dissipation (T
C
= +100擄C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27W
Power Transistor Junction Temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150擄C
Operating Temperature Range (Case Temperature, Note 1), T
opr
. . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Note 1. Recommended Operating Temperature: T
opr
= +100擄C
Electrical Characteristics:
(T
A
= +25擄C unless otherwise specified)
Parameter
Output Voltage
Sensing Voltage (Fixed Voltage)
Line Regulation
Load Regulation
Output Voltage Temperature
Coefficient
Saturation Voltage
Symbol
V
O
V
O
Test Conditions
V
IN
= 220V, I
O
= 900mA, Note 2
I
IN
= 7mA
Min
Typ
Max
111.5
42.3
Unit
V
V
V
V
mV/擄C
V
V
108.5 110.0
41.3
41.8
Reg
LINE
V
IN
= 180V to 280V, I
O
= 900mA
Reg
LOAD
V
IN
= 220V, I
O
= 550mA to 900mA
K
t
V
CE(sat)
V
BE(sat)
h
FE
I
CEX
R
螛JC
t
s
t
f
T
C
= 鈥?0擄 to +100擄C, I
IN
= 7mA
I
C
= 3A, I
B
= 600mA
I
C
= 3A, I
B
= 600mA
I
C
= 1A, V
CE
= 4V
V
CE
= 850V, V
BE
= 1.5V
Between Junction and Case
I
C
= 3A, I
B1
= 500mA, I
B2
= 鈥?00mA,
R
L
= 67鈩?/div>
鈩?/div>
Initial Value
鹵1V
Initial Value
鹵2V
鈥?/div>
鈥?/div>
鈥?/div>
15
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鹵2
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
1.8
鈥?/div>
鈥?/div>
鈥?/div>
0.4
1.5
38
1
鈥?/div>
11.0
0.5
DC Current Gain
Collector Cutoff Current
Power Transistor Thermal
Resistance
Switching Time
mA
擄C/W
碌s
碌s
Note 2. Output voltage is determined by the ratio between the sensing winding 鈥淒鈥?and the secondary
winding 鈥淪鈥?
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