Switching Regulator. NTE1870 Datasheet

NTE1870 Regulator. Datasheet pdf. Equivalent

Part NTE1870
Description Integrated Circuit Module - Color TV Switching Regulator
Feature NTE1870 Integrated Circuit Module – Color TV Switching Regulator Absolute Maximum Ratings: (TA = +25.
Manufacture NTE
Datasheet
Download NTE1870 Datasheet




NTE1870
NTE1870
Integrated Circuit
Module – Color TV Switching Regulator
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Input AC Voltage, VACmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280V
Output Power, POmax
AC: 90V to 280V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80W
AC: 150V to 280V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100W
Substrate Temperature, TCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +105°C
Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +105°C
Ambient Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10° to +60°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +105°C
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8°C/W
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Test Conditions
Min Typ Max Unit
Output Voltage
Hi +B
Low +B
VAC = 220V, IO1 = 500mA, IO2 = 500mA
VAC = 220V, IO1 = 500mA, IO2 = 500mA
114.0 115.0 116.0 V
– 15.0 –
V
Line Regulation
VAC = 90V to 280V, IO1 = 500mA, IO2 = 500mA
1
V
Load Regulation
VAC = 220V, IO1 = 300mA to 700mA, IO2 = 500mA – 1.5 2.0 V
Ripple Voltage
Temperature Stability
VAC = 220V, IO1 = 500mA, IO2 = 500mA
VAC = 220V, IO1 = 500mA, IO2 = 500mA
– 0.3 0.6 VP–P
– 0.01 – %/°C
Operating Frequency VAC = 220V, IO1 = 500mA, IO2 = 500mA
– 34 – kHz
Operating Efficiency
VAC = 220V, IO1 = 500mA, IO2 = 500mA
– 80 – %
Cross Road Regulation VAC = 220V, IO1 = 500mA, IO2 = 0 to 1A
Dielectric Voltage
Prim – Second
– 0.2 –
V
4 – – kV
Note 1. Hi +B: VO1, IO1; Low +B: VO2, IO2



NTE1870
Pin Connection Diagram
(Front View)
15 TR5 Collector (Internal)
14 TR5 Collector (Internal)
13 No Pin
12 No Pin
11 TR5 Emitter (Internal)
10 TR5 Base (Internal)
9 Constant Current base Drive
8 Voltage Compensation
7 Constant Current Base Driver Control
6 Constant Current Base Driver Control
5 Current Feedback for Overcurrent Protection
4 Power Supply for Control Voltage Set Up
3 Voltage to Set Up an Output Voltage
2 Soft Start/Output Voltage Setting
1 Control Circuit GND
2.330 (59.2)
2.050 (52.0)
.335 (8.5)
1.004
(25.5)
.630
(16.0)
.835
(21.2)
1 15
.100 (2.54)
1.400 (35.6)
.205 (5.2)







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