Datasheet

UNISONIC TECHNOLOGIES CO., LTD
T8172
LINEAR INTEGRATED CIRCUIT
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.
„
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
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Copyright © 2005 Unisonic Technologies Co., Ltd
Package
Packing
TO-220Z7
Tube
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QW-R121-009,A
T8172
„
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
7
Non-Inverting input
6
Output stage supply
5
Output
4
Ground
3
Flyback generator
2
Supply voltage
1
Inverting input
Tab connected to Pin 4
„
BLOCK DIAGRAM
3
6
2
Flyback
Generator
1
Power
Amplifier
7
Drive
Stage
Output
Stage
5
+
Thermal
Protection
4
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T8172
„
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (pin 2)
PARAMETER
SYMBOL
VCC
RATINGS
35
UNIT
V
Flyback Peak Voltage
V5, V6
60
V
Voltage at Pin 3
V3
+ VCC
+
V
Amplifier Input Voltage
V1, V7
V
cc – 0.5
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 <V2
I3
100
mA
Pin 3 Peak to Peak Flyback Current
I3
3
A
( f = 50 or 60 Hz, tfb ≤ 1.5 ms )
Total Power Dissipation
PD
20
W
(TC = 90 °C )
Junction Temperature
TJ
+150
°C
Storage Temperature
TSTG
-40~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„
THERMAL DATA
PARAMETER
Thermal Resistance Junction-Case
„
SYMBOL
θJC
RATING
3
UNIT
°C/W
ELECTRICAL CHARACTERISTICS (Ta = 25°C, VCC = 35V, unless otherwise specified)
PARAMETER
Pin 2 Quiescent Current
SYMBOL
TEST CONDITIONS
I2
I3 =0, I5 =0
Pin 6 Quiescent Current
I6
Amplifier Input Bias Current
I1
I3 =0, I5 = 0
MIN
TYP
8
36
-1
mA
V1 = 1V, V7 = 2V
16
-0.1
V1 = 2V, V7 = 1V
-0.1
-1
μA
1.5
V
Pin 3 Saturation Voltage to GND
V3L
I3 = 20mA
1
Quiescent Output Voltage
V5
VCC = 35V, Ra =39kW
18
Output Saturation Voltage to GND
V5L
Output Saturation Voltage to Supply
V5H
Thermal Shutdown Junction Temperature
TJ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MAX UNIT
16
mA
μA
V
I5 = 1.2A
1
1.4
V
I5 = 0.7A
0.7
1
V
-I5 = 1.2A
1.6
2.2
V
-I5 = 0.7A
1.3
140
1.8
V
°C
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T8172
„
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
+VCC
3
6
2
Flyback
Generator
1
7
Power
Amplifier
+
Drive
Stage
Thermal
Protection
Output
Stage
5
Deflection Coil
4
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www.unisonic.com.tw
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QW-R121-009,A
T8172
„
LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
FOR DC Test 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.
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www.unisonic.com.tw
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