1/9 may 2004 tda8177 vertical deflection booster rev. 2 features summary power amplifier flyback generator thermal protection output current up to 3.0a pp flyback voltage up to 70v (on pin 5) suitable for dc coupling application 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 3a pp output current to drive the yoke. the tda8177 is offered in heptawatt pack- age. figure 1. package figure 2. pin connections heptawatt (plastic package) 7 6 5 4 3 2 1 tab connected to pin 4 output stage supply output ground flyback generator supply voltage inverting input non-inverting input
tda8177 2/9 figure 3. block diagram table 1. absolute maximum ratings note: 1. versus pin 4. 2. the output current can reach 4a peak for t 10s (up to 120hz). 3. provided soar is respected (see figures 6 and 7). 4. equivalent to discharging a 100pf capacitor through a 1.5k ? series resistor. table 2. thermal data symbol parameter value unit v s supply voltage (pin 2) (see note 1) 40 v v 6 flyback peak voltage (pin 6) (see note 1) 75 v v 1, v 7 amplifier input voltage (pins 1-7) (see note 1) ? 0.3, + v s v i o maximum output peak current (see notes 2 and 3) 2.5 a i 3 maximum sink current (first par t of flyback) (t < 1ms) 2.5 a i 3 maximum source current (t < 1ms) 2.5 a v esd electrostatic handling for all pins (see note 4) 2000 v t oper operating ambient temperature ? 20, + 75 c t stg, storage temperature ? 40, + 150 c t j junction temperature + 150 c symbol parameter value unit r th (j-c) junction-case thermal resistance max 3 c/w t t temperature for thermal shutdown 150 c t jr recommended max. junction temperature 120 c power amplifier 4 5 7 thermal protection 1 2 3 6 inverting input non-inverting input output ground supply voltage output stage supply flyback generator tda8177 flyback generator
3/9 tda8177 table 3. electrical characteristics (v s = 35v, t a = 25c, unless otherwise specified) symbol parameter test conditions min. typ. max. unit v s operating supply voltage range 10 35 v i 2 pin 2 quiescent current i 3 = 0, i 5 = 0 920ma i 6 pin 6 quiescent current i 3 = 0, i 5 = 0, v 6 = 35v 81530ma i o max. peak output current 1.5 a i 1 amplifier bias current v 1 = 22v, v 7 = 23v ?0.15 ? 1 a i 7 amplifier bias current v 1 = 23v, v 7 = 22v ?0.15 ? 1 a v io offset voltage 7mv ? v io /dt offset drift versus temperature ? 10 v/c gv voltage gain 80 db v 5l output saturation voltage to gnd (pin 4) i 5 = 1.5a 11.7v v 5h output saturation voltage to supply (pin 6) i 5 = - 1.5a 1.8 2.3 v v d5 - 6 diode forward voltage between pins 5-6 i 5 = 1.5a 1.8 2.3 v v d3 - 2 diode forward voltage between pins 3-2 i 3 = 1.5a 1.6 2.2 v v 3sl saturation voltage on pin 3 i 3 = 20ma 0.4 1 v v 3sh saturation voltage to pin 2 (2nd part of flyback) i 3 = 1.5a 2.1 2.8 v
tda8177 4/9 application circuits figure 4. ac coupling yoke 1 3 4 5 6 7 330 ? r5 r3 r2 r4 r1 0.47 f 1.5 ? c l 2 flyback generator power amplifier thermal protection + v s c f v ref 2.2v tda8177
5/9 tda8177 figure 5. dc coupling figure 6. output transistors soa (for secondary breakdown ) figure 7. secondary breakdown temperature derating curve (isb = secondary breakdown current ) yoke 1 3 4 5 6 7 330 ? r5 r2 r1 0.47 f 1.5 ? 2 flyback generator power amplifier thermal protection + v s c f tda8177 vertical position adjustment v ref + -v ee v ref + v ref- t = 1ms t = 10ms t = 100ms i c (a) 10 1 10 -1 v ce (v) @ t case = 25?c 10 -2 1 10 10 2 100 90 80 70 60 25 50 75 100 isb (%) t case (c?) 125
tda8177 6/9 part numbering table 4. order codes part number package temperature range tda8177 heptawatt7 -2 0 to 7 5 c
7/9 tda8177 package mechanical table 5. heptawatt7 - mechanical data figure 8. heptawatt7 - package dimensions note: drawing is not to scale symbol millimeters inches min typ max min typ max a 4.8 0.189 c 1.37 0.054 d 2.4 2.8 0.094 0.110 d1 1.2 1.35 0.047 0.053 e 0.35 0.55 0.014 0.022 f 0.6 0.8 0.024 0.031 f1 0.9 0.035 g 2.41 2.54 2.67 0.095 0.100 0.105 g1 4.91 5.08 5.21 0.193 0.200 0.205 g2 7.49 7.62 7.8 0.295 0.300 0.307 h2 10.4 0.409 h3 10.05 10.4 0.396 0.409 l 16.97 0.668 l1 14.92 0.587 l2 21.54 0.848 l3 22.62 0.891 l5 2.6 3 0.102 0.118 l6 15.1 15.8 0.594 0.622 l7 6 6.6 0.236 0.260 m 2.8 0.110 m1 5.08 0.200 dia. 3.65 3.85 0.144 0.152
tda8177 8/9 revision history table 6. revision history date revision description of changes december-1998 1 first issue 14-may-2004 2 stylesheet update. no content change.
9/9 tda8177 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences 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 publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2004 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states www.st.com
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