Vertical Deflection IC
TDA8172
TV VERTICAL DEFLECTION OUTPUT CIRCUIT
FEATURES s Power Amplifier s Flyback Generator s Thermal Protection
DESCR...
Description
TDA8172
TV VERTICAL DEFLECTION OUTPUT CIRCUIT
FEATURES s Power Amplifier s Flyback Generator s Thermal Protection
DESCRIPTION The TDA8172 is a monolithic integrated circuit in HeptawattTM package. It is a high efficiency power booster for direct driving of vertical windings of TV yokes. It is intended for use in color and black & white television as well as in monitors and displays.
PIN CONNECTION (top view)
HEPTAWATT (Plastic Package) ORDER CODE: TDA8172
BLOCK DIAGRAM
October 2003
1/7
1
TDA8172
1 ABSOLUTE MAXIMUM RATINGS
Symbol
VS V5, V6
V3 V1, V7
I0 I0 I0 I3 I3 I3 Ptot Tstg, Tj
Parameter Supply Voltage (pin 2) Flyback Peak Voltage Voltage at Pin 3 (see Note 1) Amplifier Input Voltage Output Peak Current (non repetitive, t = 2ms) Output Peak Current at f = 50 to 200 Hz, t ≤ 10µs Output Peak Current at f = 50 to 200 Hz, t > 10µs Pin 3 DC Current at V5 < V2 Pin 3 Flyback Current at f = 50 to 200 Hz, tfly ≤ 1.5ms Pin 3 Sink Current at f = 50 to 200 Hz, t ≤ 10µs Total Power Dissipation at Tcase = 90 °C Storage and Junction Temperature
Note 1:This occurs during the first part of flyback pulse
Value 35 60
VS + 3 VS - 0.5
2.5 ±5 2 100 ±1.5 5 20 -40, +150
Unit V V V V A A A mA A A W °C
2 THERMAL DATA
Symbol Rth(j-c)
Parameter Thermal Resistance Junction-case
Value 3
Unit °C/W
3 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, VS = 35V, Tamb = 25°C unless otherwise specified)
Symbol
Parameter
Test Conditions
I2 Pin 2 Quiescent Current I6 Pin 6 Quiescent C...
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