NTE NTE7075 Datasheet
NTE7075
Integrated Circuit
Module – 100W Offline Switching Regulator
for Color TV
Features:
D The Oscillation Circuit is Self–Oscillating
D Functional Trimming Permits the Output Voltage to be Set with High Accuracy: ±1V
D No Feedback from the Secondary Side to the Primary Side
D Few External Components Required
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
AC Input Voltage, Vacmax 280V
Maximum Output Power, POmax
85 to 280VAC 100W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
150 to 280VAC 130W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction Temperature, TJmax +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Case Temperature, T
Operating Temperature Range, T
Storage Temperature Range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C
opr
stg
–30° to +105°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–10° to +65°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–30° to +105°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
rms
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage Setting
Line Regulation
Load Regulation Vac = 200V, IO = 0.4 to 0.87A – 1.0 1.5 V
Input Power
Output Ripple Voltage
Temperature Coefficient
Reduced Voltage Characteristic (1)
Reduced Voltage Characteristic (2) Vac = 95V, IO = 1.04A, RL = 110Ω 112 113 – V
Light Load Characteristic
TR5 Thermal Resistance R
Current Amplification Factor h
Saturation Voltage V
Shorted Load Handling Capability 280 – – V
Recommended Tightening Torque 6 – 10 kg
CE(sat)IC
Vac = 200V, IO = 0.5A, RL = 230Ω
Vac = 85 to 280V, IO = 0.8A, RL = 144Ω
Vac = 200V, IO = 0.87A, RL = 132Ω
Vac = 200V, IO = 0.87A, RL = 132Ω
Vac = 200V, IO = 0.5A, RL = 230Ω
Vac = 85V, IO = 0.87A, RL = 132Ω
Vac = 200V, RL = 4.7kΩ
Junction–Substrate – – 1.3 °C/W
Θ
JC
VCE = 5V, IC = 1.2A 10 – –
FE
= 6A, IB = 1.2A – – 1.5 V
114 115 116 V
– 0.4 1.0 V
– 125 128 W
– 0.3 0.6 V
– 7 – mV/°C
112 113 – V
– 119 130 V
P–P
Equivalent Circuit
TR2
D2
8
10 14 15
ZD3
TR3
TR5
11
R9
TR4
R8
9
7
D3
4
6
5
SUB
1
R3
R1
2
R2
3
C1
TR1
ZD1
R4
ZD2
R5
R6
R7
D1
2.330 (59.2)
2.050 (52.0)
.630
(16.0)
115
.100 (2.54)
.205 (5.2)
.335 (8.5)
1.004
(25.5)
.835
(21.2)
1.400 (35.6)
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