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| TDA8171 VERTICAL DEFLECTION BOOSTER . . . . . . POWER AMPLIFIER FLYBACK GENERATOR THERMAL PROTECTION OUTPUT CURRENT UP TO 3.0APP FLYBACK VOLTAGE UP TO 70V (on Pin 5) INTERNAL REFERENCE VOLTAGE DESCRIPTION Designed 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. PIN CONNECTIONS 7 6 5 4 3 2 1 Tab connected to Pin 4 NON-INVERTING INPUT + REFERENCE VOLTAGE OUTPUT STAGE SUPPLY OUTPUT GROUND FLYBACK GENERATOR SUPPLY VOLTAGE INVERTING INPUT HEPTAWATT (Plastic Package) ORDER CODE : TDA8171 BLOCK DIAGRAM SUPPLY VOLTAGE 2 OUTPUT STAGE SUPPLY 6 FLYBACK GENERATOR 3 FLYBACK GENERATOR REFERENCE VOLTAGE INVERTING INPUT 1 10k NON-INVERTING + REFERENCE VOLTAGE 7 POWER AMPLIFIER THERMAL PROTECTION 5 OUTPUT TDA8171 4 GROUND December 1998 1/4 8171-02.EPS 8171-01.EPS TDA8171 ABSOLUTE MAXIMUM RATINGS Symbol VS V6 V1 , V7 IO I3 I3 VESD Toper Tstg Tj Notes : 1. 2. 3. 4. Parameter Supply Voltage (Pin 2) (see Note 1) Flyback Peak Voltage (Pin 6) (see Note 1) Amplifier Input Voltage (Pins 1-7) (see Note 1) Maximum Output Peak Current (see Notes 2 and 3) Maximum Sink Current (first part of flyback) (t < 1ms) Maximum Source Current (t < 1ms) Electrostatic Handling for all pins (see Note 4) Operating Ambient Temperature Storage Temperature Junction Temperature Versus Pin 4. The output current can reach 4A peak for t 10s (up to 120Hz). Provided SOAR is respected (see Figures 1 and 2). Equivalent to discharging a 100pF capacitor through a 1.5k series resistor. Value 40 75 - 0.3, + VS 2.5 2.5 2.5 2000 - 20, + 75 - 40, + 150 +150 Unit V V V A A A V o o o C C C 8171-01.TBL 8171-03.TBL 8171-02.TBL THERMAL DATA Symbol Rth (j-c) Tt Tjr Parameter Junction-case Thermal Resistance Temperature for Thermal Shutdown Recommended Max. Junction Temperature Max. Value 3 150 120 Unit o C/W o o C C ELECTRICAL CHARACTERISTICS (VS = 35V, TA = 25oC, unless otherwise specified) Symbol VS I2 I6 IO I1 V7 V7/VS V7/t GV V5L V5H VD5 - 6 VD3 - 2 V3SL V3SH Parameter Operating Supply Voltage Range Pin 2 Quiescent Current Pin 6 Quiescent Current Max. Peak Output Current Amplifier Bias Current Reference Voltage Reference Voltage Drift versus Supply Voltage Reference Voltage Drift versus Temperature Voltage Gain Output Saturation Voltage to GND (Pin 4) Output Saturation Voltage to Supply (Pin 6) Diode Forward Voltage between Pins 5-6 Diode Forward Voltage between Pins 3-2 Saturation Voltage on Pin 3 Saturation Voltage to Pin 2 (2nd part of flyback) I5 = 1.5A I5 = - 1.5A I5 = 1.5A I3 = 1.5A I3 = 20mA I3 = - 1.5A 80 1 1.8 1.8 1.6 0.4 2.1 1.7 2.3 2.3 2.2 1 2.8 V1 = 1V 2.35 1 0.15 2 I3 = 0, I5 = 0 I3 = 0, I5 = 0, V6 = 35V 8 Test Conditions Min. 10 9 15 Typ. Max. 35 20 30 1.5 -1 Unit V mA mA A A V mV/V mV/oC dB V V V V V V 2/4 TDA8171 APPLICATION CIRCUIT + VS CF 2 6 3 FLYBACK GENERATOR R5 REFERENCE VOLTAGE 1 10k POWER AMPLIFIER THERMAL PROTECTION 5 0.47F 1.5 YOKE 330 7 TDA8171 4 R3 R4 CL R2 Figure 1 : Output Transistors SOA (for secondary breakdown) IC (A) 10 @ Tcase = 25C Figure 2 : Secondary Breakdown Temperature Derating Curve (ISB = secondary breakdown current) ISB (%) 100 90 1 80 10-1 t = 1ms t = 10ms t = 100ms 1 10 70 8171-04.EPS VCE (V) 102 10-2 60 25 50 75 Tcase (C) 100 125 3/4 8171-05.EPS 8171-03.EPS R1 TDA8171 PACKAGE MECHANICAL DATA : HEPTAWAT Dimensions A C D D1 E F F1 G G1 G2 H2 H3 L L1 L2 L3 L5 L6 L7 M M1 Dia. Min. Millimeters Typ. 2.4 1.2 0.35 0.6 2.41 4.91 7.49 10.05 16.97 14.92 21.54 22.62 2.6 15.1 6 2.8 5.08 3.65 2.54 5.08 7.62 Max. 4.8 1.37 2.8 1.35 0.55 08 0.9 2.67 5.21 7.8 10.4 10.4 Min. Inches Typ. 0.094 0.047 0.014 0.024 0.095 0.193 0.295 0.396 0.668 0.587 0.848 0.891 0.100 0.200 0.300 Max. 0.189 0.054 0.110 0.053 0.022 0.031 0.035 0.105 0.205 0.307 0.409 0.409 3 15.8 6.6 0.102 0.594 0.236 0.110 0.200 0.118 0.622 0.260 HEPTV.TBL 3.85 0.144 0.152 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents 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 (c) 1998 STMicroelectronics - All Rights Reserved Purchase of I2C Components of STMicroelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com 4/4 PM-HEPTV.EPS |
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