NTE1788 Integrated Circuit TV Vertical Deflection Output Circuit
Description: The NTE1788 is a monolithic integrated circuit in 7-Lead Staggared SIP type package and is designed for use as a high efficiency power booster for direct driving of vertical windings of TV yokes. It is intended for use in color and B & W television as well as in monitors and displays. Features: D Power Amplifier D Flyback Generator D Thermal Protection Absolute Maximum Ratings: Supply Voltage (Pin2), VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Flyback Peak Voltage, V5, V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V Voltage at Pin3, V3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +VS Amplifier Input Voltage, V1, V7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +VS Output Peak Current, IO (Non Repetitive, t = 2ms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5A to +2.5A (f = 50 or 60Hz, t 10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A (f = 50 or 60Hz, t > 10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A Pin3 DC Current (V5 < V2), I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA Pin3 Peak to Peak Flyback Current (f = 50 or 60Hz, tfly 1.5ms), I3 . . . . . . . . . . . . . . . . . . . . . . . . 3A Total Power Dissipation (TC = +90C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20W Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to 150C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to 150C Thermal Resistance, Junction to Case, RJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3C/W
Electrical Characteristics: (VS = 35V, TA = +25C unless otherwise specified)
Parameter Quiescent Current Amplifier Input Bias Current Pin3 Saturation Voltage to GND Quiescent Output Voltage Output Saturation Voltage to GND Output Saturation Voltage to Supply Junction Temperature for Thermal Shut Down Symbol I2 I6 I1 V3L V5 V5L V5H Tj Test Conditions I3 = 0, I5 = 0 I3 = 0, I5 = 0 V1 = 1V, V7 = 2V V1 = 2V, V7 = 1V I3 = 20mA V5 = 35V, Ra = 39k I5 = 1.2A I5 = 0.7A -I5 = 1.2A -I5 = 0.7A Min - - - - - - - - - - - Typ 8 16 Max 16 36 Unit mA mA A A V V V V V V C
-0.1 -1.0 -0.1 -1.0 1.0 18 1.0 0.7 1.6 1.3 140 1.5 - 1.4 1.0 2.2 1.8 -
Pin Connection Diagram (Front View) 7 Non-Inverting Input 6 Output Stage Supply 5 Output 4 GND/Tab 3 Flyback Generator 2 VCC 1 Inverting Input
.189 (4.8) .410 (10.42) .237 (6.0) .622 (15.8) .666 (16.9) 7 .890 (22.6) .054 (1.38)
.152 (3.93) Dia 1
.300(7.62)
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