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INTEGRATED CIRCUITS
DATA SHEET
TDA1556Q
2 x 22 W stereo BTL differential
amplifier with speaker protection
and dynamic distortion detector
July 1994
Product specification
File under Integrated Circuits, IC01
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential TDA1556Q amplifier with speaker protection and FEATURES • Thermally protected • Reverse polarity safe • Few peripheral components • High energy handling capability at the outputs (V = 0 V) P • High output power • Electrostatic discharge protection • Low output offset voltage • No switch-on/switch-off plop • Fixed gain • Flexible leads • Loudspeaker protection (with diagnostic facility) • Low thermal resistance • Differen
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic V P handbook, full pagewidth 513 1 mute switch input 1A 2 input 1B 6 VA output 1A mute switch 8 VA output 1B 4 DDD 14 mute/stand-by stand-by
switch stand-by
reference
voltage V A 15 LSP mute
switch x1 TDA1556Q 9 n.c. 16 mute switch input 2A 17 input 2B 10 VA output 2A mute switch 12 VA output 2B 3 n.c. 11 7 MLA383-2 powerground Fig.1 Block diagram. July 1994 3
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic PINNING SYMBOL PIN DESCRIPTION IN1A 1 input signal 1A handbook, halfpage IN 1A 1 IN1B 2 input signal 1B IN 1B 2 n.c. 3 not connected n.c. 3 DDD 4 dynamic distortion detector V 5 positive supply voltage 1 DDD 4 p1 OUT1A 6 output signal 1A V 5 P1 GND1 7 power ground 1 OUT 1A 6 OUT1B 8 output signal 1B GND 1 7 n.c. 9 not connected OUT 1B 8 OUT2A 10 output signal 2A n.c.
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic FUNCTIONAL DESCRIPTION Loudspeaker protection The TDA1556Q contains two identical amplifiers each with Should a short circuit to ground occur, thereby forcing a a fixed gain of 26 dB and differential input stages. DC voltage ≥ 1 V across the loudspeaker, a built-in The device can be used for bridge-tied-load applications. protection circuit is activated to limit the
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT MUTE CONDITION V mute voltage 3.3 - 6.4 V mute V output signal in mute position V = 1 V; f = 1 kHz-- 2mV O I max V DC output offset voltage -- 100 mV os STANDBY CONDITION V stand-by voltage 0 - 2V sb I DC standby current V < 0.5 V -- 100 μA sb 14 0.5 V ≤ V ≤ 2.0 V -- 500 μA 14 I switch-on current - 25 60 μA sw I supply
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic AC CHARACTERISTICS V = 14.4 V; R = 4 Ω; f = 1 kHz; T = 25 °C; unless otherwise specified p L amb SYMBOL PARAMETER CONDITION MIN. TYP. MAX. UNIT P output power THD = 0.5% 15 17 - W O THD = 10% 20 22 - W THD = 0.5%; - 12 - W V = 13.2 V P THD = 10%; - 17 - W V = 13.2 V P THD total harmonic distortion P = 1 W - 0.1 - % O B power bandwidth THD = 0.5%; - 20 to - Hz P = - 1
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic mute/stand-by V DDD P handbook, full pagewidth 2200
100
μF nF 414 513 1/2 R 220 nF s 1 6 Z i1 audio
R load source Z i2 8 220 μF 1/2 R s 2 n.c. 9 V ref 15 4.7
n.c. 3 μF TDA1556Q 1/2 R 220 nF s 16 10 Z i3 audio
R load source Z i4 12 220 μF 1/2 R s 17 711 MLA380-2 Fig.4 Stereo BTL test diagram. July 1994 8
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic PACKAGE OUTLINE DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm) SOT243-1 non-concave D h x D E h view B: mounting base side d A 2 B j E A L 3 L Q c 117 e m e v M 1 w M Z 2 b p e 0 5 10 mm scale DIMENSIONS (mm are the original dimensions) (1) (1) (1) UNIT A A b cDdeD E e e E j LL m Q v w x Z 2 p h 1 2 h 3 17.0 4.6 0.75 0.48 24.0 20.0 12.2 3.4
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Philips Semiconductors Product specification 2 x 22 W stereo BTL differential amplifier TDA1556Q with speaker protection and dynamic SOLDERING The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the Introduction specified maximum storage temperature (T ). If the stg max printed-circuit board has been pre-heated, forced cooling There is no soldering method that is ideal for all IC may be necessary immediately after soldering to keep the package
