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TDA8543 Dataheets PDF



Part Number TDA8543
Manufacturers NXP
Logo NXP
Description 2 W BTL audio amplifier
Datasheet TDA8543 DatasheetTDA8543 Datasheet (PDF)

INTEGRATED CIRCUITS DATA SHEET TDA8543 2 W BTL audio amplifier Product specification File under Integrated Circuits, IC01 1997 Jun 12 Philips Semiconductors Product specification 2 W BTL audio amplifier FEATURES • Flexibility in use • Few external components • Low saturation voltage of output stage • Gain can be fixed with external resistors • Standby mode controlled by CMOS compatible levels • Low standby current • No switch-on/switch-off plops • High supply voltage ripple rejection • Protect.

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INTEGRATED CIRCUITS DATA SHEET TDA8543 2 W BTL audio amplifier Product specification File under Integrated Circuits, IC01 1997 Jun 12 Philips Semiconductors Product specification 2 W BTL audio amplifier FEATURES • Flexibility in use • Few external components • Low saturation voltage of output stage • Gain can be fixed with external resistors • Standby mode controlled by CMOS compatible levels • Low standby current • No switch-on/switch-off plops • High supply voltage ripple rejection • Protected against electrostatic discharge • Outputs short-circuit safe to ground, VCC and across the load • Thermally protected. QUICK REFERENCE DATA SYMBOL VCC Iq Istb Po PARAMETER supply voltage quiescent current standby current output power THD = 10% RL = 8 Ω; VCC = 5 V RL = 8 Ω; VCC = 7.5 V RL = 16 Ω; VCC = 9 V THD SVRR total harmonic distortion supply voltage ripple rejection Po = 0.5 W 1 − − − 50 1.2 2.2 2.0 0.15 − VCC = 5 V CONDITIONS MIN. 2.2 − − TYP. 5 8 − APPLICATIONS • Portable consumer products • Personal computers • Telephony. GENERAL DESCRIPTION TDA8543 The TDA8543(T) is a one channel audio power amplifier for an output power of 2 W with an 8 Ω load at a 7.5 V supply. The circuit contains a BTL amplifier with a complementary PNP-NPN output stage and standby/mute logic. The TDA8543T comes in a 16 pin SO package and the TDA8543 in a 16 pin DIP package. MAX. 18 12 10 − − − − − UNIT V mA µA W W W % dB ORDERING INFORMATION TYPE NUMBER TDA8543T TDA8543 PACKAGE NAME SO16 DIP16 DESCRIPTION plastic small outline package; 16 leads; body width 3.9 mm plastic dual in-line package; 16 leads (300 mil); long body VERSION SOT109-1 SOT38-1 1997 Jun 12 2 Philips Semiconductors Product specification 2 W BTL audio amplifier BLOCK DIAGRAM TDA8543 handbook, halfpage − IN− IN+ VCC 6 5 12 TDA8543 11 OUT− − + R R 20 kΩ SVR 4 20 kΩ 3 − − + 14 OUT+ MODE STANDBY/MUTE LOGIC 13 GND MGK402 Fig.1 Block diagram. PINNING SYMBOL n.c. n.c. MODE SVR IN+ IN− n.c. n.c. n.c. n.c. OUT− VCC GND OUT+ n.c. n.c. 1997 Jun 12 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DESCRIPTION not connected not connected operating mode select (standby, mute, operating) half supply voltage, decoupling ripple rejection positive input negative input not connected not connected not connected not connected negative loudspeaker terminal supply voltage ground positive loudspeaker terminal not connected not connected 3 Fig.2 Pin configuration. handbook, halfpage n.c. 1 n.c. 2 MODE 3 SVR 4 IN+ 5 IN− 6 n.c. 7 n.c. 8 MGK401 16 n.c. 15 n.c 14 OUT+ 13 GND TDA8543 12 VCC 11 OUT− 10 n.c. 9 n.c Philips Semiconductors Product specification 2 W BTL audio amplifier FUNCTIONAL DESCRIPTION The TDA8543(T) is a BTL audio power amplifier capable of delivering an output power between 1 and 2 W, depending on supply voltage, load resistance and package. Using the MODE pin the device can be switched to standby and mute condition. The device is protected by an internal thermal shutdown protection mechanism. The gain can be set within a range from 6 dB to 30 dB by external feedback resistors. Power amplifier The power amplifier is a Bridge Tied Load (BTL) amplifier with a complementary PNP-NPN output stage. TDA8543 The voltage loss on the positive supply line is the saturation voltage of a PNP power transistor, on the negative side the saturation voltage of an NPN power transistor. Mode select pin The device is in standby mode (with a very low current consumption) if the voltage at the MODE pin is >(VCC − 0.5 V), or if this pin is floating. At a MODE voltage level of less than 0.5 V the amplifier is fully operational. In the range between 1.5 V and VCC − 1.5 V the amplifier is in mute condition. The mute condition is useful to suppress plop noise at the output, caused by charging of the input capacitor. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VCC VI IORM Tstg Tamb Vpsc Ptot input voltage repetitive peak output current storage temperature operating ambient temperature AC and DC short-circuit safe voltage total power dissipation SO16 DIP16 QUALITY SPECIFICATION In accordance with “SNW-FQ-611-E”. The number of the quality specification can be found in the “Quality Reference Handbook”. The handbook can be ordered using the code 9397 750 00192. THERMAL CHARACTERISTICS SYMBOL Rth j-a PARAMETER thermal resistance from junction to ambient TDA8543T (SO16) TDA8543 (DIP16) CONDITIONS in free air 100 55 K/W K/W VALUE UNIT non-operating PARAMETER supply voltage CONDITIONS operating MIN. −0.3 −0.3 − −55 −40 − − − MAX. +18 VCC + 0.3 1 +150 +85 10 1.2 2.2 V V A °C °C V W W UNIT 1997 Jun 12 4 Philips Semiconductors Product specification 2 W BTL audio amplifier TDA8543 MGK410 handbook, halfpage 2.5 P (W) 2.0 1.5 (1) 1 (2) 0.5 0 0 40 80 120 160 Tamb (°C) (1) DIP16. (2) SO16. Fig.3 Power derating curve. Table 1 CONTINUOUS SINE WAVE DRIVEN VCC (V) RL (Ω) Po (W)(1) Pmax (W) 0.7 1.6 0.9 1.3 0.9 Tamb(max) (°C) SO16 80 − 60 − 60 DIP16 1.


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