TDA8177 VERTICAL DEFLECTION BOOSTER FEATURES SUMMARY ■ POWER AMPLIFIER ■ FLYBACK GENERATOR ■ THERMAL PROTECTION ■ OUTPUT CURRENT UP TO 3.0APP ■ FLYBACK VOLTAGE UP TO 70V (on Pin 5) ■ SUITABLE FOR DC COUPLING APPLICATION Figure 1. Package DESCRIPTION Designed for monitors and high performance TVs, the TDA8177 vertical deflection booster delivers flyback voltages up to 70V. The TDA8177 operates with supplies up to 35V and provides up to 3APP output current to drive the yoke. The TDA8177 is offered in HEPTAWATT package. HEPTAWATT (Plastic Package) Figure 2. Pin Connections 7 6 5 4 3 2 1 NON-INVERTING INPUT OUTPUT STAGE SUPPLY OUTPUT GROUND FLYBACK GENERATOR SUPPLY VOLTAGE INVERTING INPUT Tab connected to Pin 4 REV. 2 May 2004 1/9 TDA8177 Figure 3. Block Diagram SUPPLY VOLTAGE OUTPUT STAGE SUPPLY FLYBACK GENERATOR 2 6 3 FLYBACK GENERATOR INVERTING INPUT 1 POWER AMPLIFIER NON-INVERTING INPUT 5 OUTPUT 7 THERMAL PROTECTION TDA8177 4 GROUND Table 1. Absolute Maximum Ratings Symbol Parameter Value Unit VS Supply Voltage (Pin 2) (see note 1) 40 V V6 Flyback Peak Voltage (Pin 6) (see note 1) 75 V – 0.3, + VS V V1, V7 Amplifier Input Voltage (Pins 1-7) (see note 1) IO Maximum Output Peak Current (see notes 2 and 3) 2.5 A I3 Maximum Sink Current (first part of flyback) (t < 1ms) 2.5 A I3 Maximum Source Current (t < 1ms) 2.5 A 2000 V VESD Electrostatic Handling for all pins (see note 4) TOPER Operating Ambient Temperature – 20, + 75 °C TSTG, Storage Temperature – 40, + 150 °C Tj Junction Temperature + 150 °C Value Unit 3 °C/W Note: 1. 2. 3. 4. Versus Pin 4. The output current can reach 4A peak for t ≤ 10µs (up to 120Hz). Provided SOAR is respected (see Figures 6 and 7). Equivalent to discharging a 100pF capacitor through a 1.5kΩ series resistor. Table 2. Thermal Data Symbol Rth (j-c) 2/9 Parameter Junction-case Thermal Resistance Max Tt Temperature for Thermal Shutdown 150 °C Tjr Recommended Max. Junction Temperature 120 °C TDA8177 Table 3. ELECTRICAL CHARACTERISTICS (VS = 35V, TA = 25°C, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 35 V 9 20 mA 15 30 mA 1.5 A VS Operating Supply Voltage Range I2 Pin 2 Quiescent Current I3 = 0, I5 = 0 I6 Pin 6 Quiescent Current I3 = 0, I5 = 0, V6 = 35V IO Max. Peak Output Current I1 Amplifier Bias Current V1 = 22V, V7 = 23V –0.15 –1 µA Amplifier Bias Current V1 = 23V, V7 = 22V –0.15 –1 µA 7 mV I7 VIO ∆VIO /dt 10 8 Offset Voltage Offset Drift versus Temperature µV/°C – 10 GV Voltage Gain 80 V5L Output Saturation Voltage to GND (Pin 4) I5 = 1.5A V5H Output Saturation Voltage to Supply (Pin 6) VD5 - 6 VD3 - 2 dB 1 1.7 V I5 = - 1.5A 1.8 2.3 V Diode Forward Voltage between Pins 5-6 I5 = 1.5A 1.8 2.3 V Diode Forward Voltage between Pins 3-2 I3 = 1.5A 1.6 2.2 V V3SL Saturation Voltage on Pin 3 I3 = 20mA 0.4 1 V V3SH Saturation Voltage to Pin 2 (2nd part of flyback) I3 = 1.5A 2.1 2.8 V 3/9 TDA8177 APPLICATION CIRCUITS Figure 4. AC Coupling + VS CF 2 6 3 FLYBACK GENERATOR R5 1 POWER AMPLIFIER TDA8177 4 R3 R2 R4 CL R1 4/9 YOKE 330Ω THERMAL PROTECTION VREF 2.2V 0.47µF 1.5Ω 7 5 TDA8177 Figure 5. DC Coupling + VS CF 2 6 3 FLYBACK GENERATOR R5 1 THERMAL PROTECTION TDA8177 VREF- 4 YOKE 7 5 330Ω Vertical Position Adjustment POWER AMPLIFIER 0.47µF 1.5Ω VREF+ -VEE R2 R1 Figure 6. Output Transistors SOA (for secondary breakdown) Figure 7. Secondary Breakdown Temperature Derating Curve (ISB = secondary breakdown current) IC (A) 10 ISB (%) @ Tcase = 25˚C 100 1 90 80 10-1 t = 1ms t = 10ms t = 100ms 10-2 1 70 VCE (V) 10 102 Tcase (C˚) 60 25 50 75 100 125 5/9 TDA8177 PART NUMBERING Table 4. Order Codes 6/9 Part Number Package Temperature Range TDA8177 HEPTAWATT7 -20 to 75 °C TDA8177 PACKAGE MECHANICAL Table 5. HEPTAWATT7 - Mechanical Data Symbol 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 0.8 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 0.152 Figure 8. HEPTAWATT7 - Package Dimensions Note: Drawing is not to scale 7/9 TDA8177 REVISION HISTORY Table 6. Revision History 8/9 Date Revision Description of Changes December-1998 1 First Issue 14-May-2004 2 Stylesheet update. No content change. TDA8177 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 license 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. 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