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UNISONIC TECHNOLOGIES CO., LTD T8172
VERTICAL DEFLECTION OUTPUT CIRCUIT
DESCRIPTION
The UTC T8172 is a monolithic integrated circuit and designed for Color and B/W TV, Monitors and Displays application. The IC is a differential input, single ended output amplifier with a flyback generator. It is intended to directly drive vertical windings of deflection coils with high efficiency.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Power Amplifier * Thermal Protection Circuit * Flyback Generator * Low cross-over distortion
*Pb-free plating product number: T8172L
APPLICATIONS
* Vertical deflection for monitors and TVs
ORDERING INFORMATION
Order Number Normal Lead Free Plating T8172-TB7-T T8172L-TB7-T Package TO-220Z7 Packing Tube
www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd
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T8172
PIN CONFIGURATIONS
7 6 5 4 3 2 1
LINEAR INTEGRATED CIRCUIT
Non-Inverting input Output stage supply Output Ground Flyback generator Supply voltage Inverting input
Tab connected to Pin 4
BLOCK DIAGRAM
2 6 3 Flyback Generator
1
Power Amplifier Drive Stage Output Stage
5
7
+ Thermal Protection 4
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R121-009,A
T8172
ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage (pin 2) Flyback Peak Voltage
LINEAR INTEGRATED CIRCUIT
SYMBOL VCC V5, V6
RATINGS 35 60
UNIT V V
Voltage at Pin 3 V3 + VCC + Vcc - 0.5 Amplifier Input Voltage V1, V7 V Output Peak Current IO(PEAK) 2.5 A (non repetitive, t = 2 ms) Output Peak Current IO(PEAK) 3 A ( f = 50 or 60 Hz, t 10 us ) Output Peak Current IO(PEAK) 2 A ( f = 50 or 60 Hz, t > 10 us ) Pin 3 DC Current at V5 THERMAL DATA
PARAMETER Thermal Resistance Junction-Case SYMBOL JC RATING 3 UNIT C/W
ELECTRICAL CHARACTERISTICS (Ta = 25C, VCC = 35V, unless otherwise specified)
PARAMETER Pin 2 Quiescent Current Pin 6 Quiescent Current Amplifier Input Bias Current Pin 3 Saturation Voltage to GND Quiescent Output Voltage Output Saturation Voltage to GND Output Saturation Voltage to Supply Thermal Shutdown Junction Temperature SYMBOL TEST CONDITIONS I2 I3 =0, I5 =0 I6 I1 V3L V5 V5L V5H TJ I3 =0, I5 = 0 V1 = 1V, V7 = 2V V1 = 2V, V7 = 1V I3 = 20mA VCC = 35V, Ra =39kW I5 = 1.2A I5 = 0.7A -I5 = 1.2A -I5 = 0.7A MIN TYP 8 16 -0.1 -0.1 1 18 1 0.7 1.6 1.3 140 1.4 1 2.2 1.8 MAX UNIT 16 mA 36 -1 -1 1.5 mA A A V V V V V V C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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T8172
APPLICATION CIRCUIT
+VCC
LINEAR INTEGRATED CIRCUIT
2
6
3 Flyback Generator
1 7
Power Amplifier
+
Drive Stage
Output Stage
5 Deflection Coil
Thermal Protection 4
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R121-009,A
T8172
TEST CIRCUIT
FOR DC Test Circuit
LINEAR INTEGRATED CIRCUIT
Figure 1. Measurement of I1 ; I2 ; I6
Figure 2. Measurement of V5H
Figure 3. Measurement of V3L ; V5L
Figure 4. Measurement of V5
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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