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TDA8171
VERTICAL DEFLECTION BOOSTER
TDA8171VERTICAL DEFLECTION BOOSTER
December 1998
BLOCK DIAGRAM
PIN CONNECTIONS POWER AMPLIFIER. FLYBACK GENERATOR. THERMAL PROTECTION. OUTPUT CURRENT UP TO 3.0APP. FLYBACK VOLTAGE UP TO 70V (on Pin 5). INTERNAL REFERENCE VOLTAGE
DESCRIPTIONDesigned for monitors and high performance TVs,
the TDA8171 vertical deflection booster delivers
flyback voltages up to 70V.
The TDA8171 operates with supplies up to 35V and
provides up to 3APP output current to drive the yoke.
The TDA8171 is offered in HEPTAWATT package.
1/4
ABSOLUTE MAXIMUM RATINGS
Notes :1. Versus Pin 4. The output current can reach 4A peak for t ≤ 10μs (up to 120Hz). Provided SOAR is respected (see Figures 1 and 2). Equivalent to discharging a 100pF capacitor through a 1.5kΩ series resistor.
THERMAL DATA
ELECTRICAL CHARACTERISTICS(VS = 35V, TA = 25o C, unless otherwise specified)
TDA81712/4
APPLICATION CIRCUITIC (A)
110 102
Figure 1 : Output Transistors SOA
(for secondary breakdown)
100 50 75 100 125
ISB (%)
Figure 2 : Secondary Breakdown Temperature
Derating Curve
(ISB = secondary breakdown current)
TDA81713/4
PACKAGE MECHANICAL DATA : HEPTAWAT
Information furnished is believed to be accurate and reliable.
or other rights of third parties which may result from
its use. No licence is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems
without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 1998 STMicroelectronics - All Rights Reserved
Purchase of I2
C Components of STMicroelectronics, conveys a license under the Philips I2
C Patent.
Rights to use these components in a I2
C system, is granted provided that the system conforms to
the I2
C Standard Specifications as defined by Philips.
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TDA81714/4
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