TDA8175 TV VERTICAL DEFLECTION OUTPUT CIRCUIT .. .. . POWER AMPLIFIER FLYBACK GENERATOR AUTOMATIC PUMPING COMPENSATION THERMAL PROTECTION REFERENCE VOLTAGE DESCRIPTION The TDA8175 is a monolithic integrated circuit in HEPTAWATT 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 B & W television sets as well as in monitors and displays. HEPTAWATT (Plastic Package) ORDER CODE : TDA8175 PIN CONNECTIONS 7 6 5 4 3 2 1 8175-01.EPS INPUT OUTPUT STAGE SUPPLY OUTPUT GROUND FLYBACK GENERATOR SUPPLY VOLTAGE INVERTING INPUT Tab connecte dto Pin 4 BLOCK DIAGRAM 1000µ F 35V +VS 0.1µ F 1N4001 2 35V 220µ F 6 Variable Gain Amplifier 3 Flyback Generator 1 Power Amplifier 5 7 1.5Ω Variable Gain Amplifier 0.1µF 200Ω 22kΩ 4 YOKE 15kΩ 8.2kΩ 1000µF 16V 8175-02.EPS Thermal Protection 2Ω September 1993 1/3 TDA8175 Symbol Parameter Value Unit VS Supply Voltage (PIn 2) 35 V V5, V6 Flyback Peak Voltage 60 V Voltage at PIn 3 +VS V3 V1, V7 Amplifier Input Voltage +VS IO Output Peak Current (non-repetitive, t = 2ms) 2.5 A IO Output Peak Current at : f = 50 or 60Hz, t ≤ 10µs f = 50 or 60Hz, t > 10µs 3 2 A A 100 mA 3 A I3 Pin 3 DC Current at V5 < V2 I3 Pin 3 Peak-to-peak Flyback Current at f = 50 or 60Hz, tfly ≤ 1.5ms Ptot Tj, Tstg o Total Power Dissipation at Tcase = 70 C 20 Storage and Junction Temperature W o -40, +150 C 8175-01.TBL ABSOLUTE MAXIMUM RATINGS Symbol R th (j-c) Parameter Value Junction-case Thermal Resistance Max. Unit o 3 C/W 8175-02.TBL THERMAL DATA ELECTRICAL CHARACTERISTICS (VS = 35V, Tamb = 25oC unless otherwise specified) Parameter Pin 2 Quiescent Current I6 Pin 6 Quiescent Current I1 Amplifier Input Bias Current V1 = 1V V3 Pin 3 Saturation to GND V5 V5 Min. Typ. Max. Unit 18 36 mA 16 36 mA -0.1 -1 µA I3 = 20mA 1 1.5 V Quiescent Output Voltage VS = 35V, Ra = 39kΩ 19 Output Saturation Voltage to GND I5 = 1.2A I5 = 0.7A 1 0.7 1.4 1 V V V5 Output Saturation Voltage to Supply -I5 = 1.2A -I5 = 0.7A 1.6 1.3 2.2 1.8 V V VO Ramp Amplitude versus Voltage Supply 22V < VS < 30V VS = 26V G AC Gain VO DC Output Voltage Accuracy V7 Internal Bias R7 Tj V 4 0.54 0.61 %/V 0.67 V 8 % 2.7 V Input Resistance 50 kΩ Junction Temperature for Thermal Shutdown 140 THERMAL PROTECTION The thermal protection circuit intervenes when the die temperatures reaches 150oC and turns-off the output power device. 2/3 Test Conditions I2 o C PUMPING COMPENSATION The device incorporates a special preampliflier, the gain of which varies with changes in supply voltage. This functionallows perfect compensationof height variations caused by changes in brightness. 8175-03.TBL Symbol TDA8175 PACKAGE MECHANICAL DATA :9 PINS - PLASTIC HEPTAWATT E L D1 C D M A M1 L1 L2 G2 H3 G1 L3 G L5 F PM-HEPTV.EPS L7 H2 F1 Dia. L6 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 2.54 5.08 7.62 10.05 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. 0.094 0.047 0.014 0.024 0.095 0.193 0.295 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 0.668 0.587 0.848 0.891 3 15.8 6.6 0.102 0.594 0.236 2.8 5.08 3.65 0.100 0.200 0.300 0.396 16.97 14.92 21.54 22.62 2.6 15.1 6 Inches Typ. 0.118 0.622 0.260 0.110 0.200 3.85 0.144 HEPTV.TBL Dimensions 0.152 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without noti ce. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1994 SGS-THOMSON Microelectronics - All Rights Reserved 2 Purchase of I C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system confo rms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 3/3