Assessments - 1, GPA: 4
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25 W high efficiency car radio power TDA1563Q amplifier FEATURES • Low dissipation due to switching from Single-Ended (SE) to Bridge-Tied Load (BTL) mode • Differential inputs with high Common Mode Rejection Ratio (CMRR) • Mute/standby/operating (mode select pin) • Zero crossing mute circuit • Load dump protection circuit • Short-circuit safe to ground, to supply voltage and across load • Loudspeaker protection circuit • Device switches to SE operation at excessive junction temperatures • Thermal protection at high junction temperature (170°C) • Diagnostic information (clip detection and protection/temperature) • Clipping information can be selected between THD = 2.5% or 10% QUICK REFERENCE DATA ORDERING INFORMATION GENERAL DESCRIPTION The TDA1563Q is a monolithic power amplifier in a 17-lead DIL-bent-SIL plastic power package. It contains two identical 25 W amplifiers. The dissipation is minimized by switching from SE to BTL mode when a higher output voltage swing is needed. The device is primarily developed for car radio applications. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage DC biased 6 14.4 18 V non-operating - - 30 V load dump - - 45 V IORM repetitive peak output current - - 4 A Iq(tot) total quiescent current RL = . - 95 150 mA Istb standby current - 1 50 mA iZi i input impedance 90 120 150 kW Po output power Vselclip RL =4 W; EIAJ - 38 - W RL =4 W; THD = 10% 23 25 - W RL =4 W; THD = 2.5% 18 20 - W Gv closed loop voltage gain 25 26 27 dB CMRR common mode rejection ratio f = 1 kHz; Rs =0 W - 80 - dB SVRR supply voltage ripple rejection f = 1 kHz; Rs =0 W 45 65 - dB iDVOi DC output offset voltage - - 100 mV acs channel separation Rs =0 W 40 70 - dB iDGvi channel unbalance - - 1 dB TYPE PACKAGE NUMBER NAME DESCRIPTION VERSION TDA1563Q DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm) SOT243-1 2000 Feb 09 2 Philips Semiconductors Product specification Philips Semiconductors Product specification TDA1563Q amplifier BLOCK DIAGRAM MGR173 + - + - + - + - MUTE VI VI VI IV IV VI SLAVE CONTROL 17 16 IN2+ 3 CIN IN2- 60 kW 60 kW 60 kW 60 kW 25 kW Vref OUT2- OUT2+ 10 11 CSE 4 + - + - + - + - MUTE SLAVE CONTROL 1 2 IN1+ IN1- OUT1+ OUT1- 8 7 + - VP STANDBY LOGIC CLIP AND DIAGNOSTIC 6 12 14 15 MODE SC DIAG CLIP GND 9 VP2 13 VP1 5 TDA1563Q Fig.1 Block diagram. 2000 Feb 09 3 Philips Semiconductors Product specification Philips Semiconductors Product specification TDA1563Q amplifier PINNING SYMBOL PIN DESCRIPTION IN1+ 1 non-inverting input 1 IN1- 2 inverting input 1 CIN 3 common input CSE 4 electrolytic capacitor for SE mode VP1 5 supply voltage 1 MODE 6 mute/standby/operating OUT1- 7 inverting output 1 OUT1+ 8 non-inverting output 1 GND 9 ground OUT2- 10 inverting output 2 OUT2+ 11 non-inverting output 2 SC 12 selectable clip VP2 13 supply voltage 2 DIAG 14 diagnostic: protection/temperature CLIP 15 diagnostic: clip detection IN2- 16 inverting input 2 IN2+ 17 non-inverting input 2 TDA1563Q MGR174 IN1+ IN1- CIN CSE VP1 MODE OUT1- OUT1+ GND OUT2- OUT2+ SC VP2 DIAG CLIP IN2- IN2+ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Fig.2 Pin configuration. 2000 Feb 09 4 Philips Semiconductors Product specification 2 . 25 W high efficiency car radio power TDA1563Q amplifier FUNCTIONAL DESCRIPTION The TDA1563Q contains two identical amplifiers with differential inputs. At low output power (up to output amplitudes of 3 V (RMS) at VP = 14.4 V), the device operates as a normal SE amplifier. When a larger output voltage swing is needed, the circuit switches to BTL operation. With a sine wave input signal, the dissipation of a conventional BTL amplifier up to 2 W output power is more than twice the dissipation of the TDA1563Q (see Fig.10). In normal use, when the amplifier is driven with music-like signals, the high (BTL) output power is only needed for a small percentage of the time. Assuming that a music signal has a normal (Gaussian) amplitude distribution, the dissipation of a conventional BTL amplifier with the same output power is approximately 70% higher (see Fig.11). The heatsink has to be designed for use with music signals. With such a heatsink, the thermal protection will disable the BTL mode when the junction temperature exceeds 150 °C. In this case, the output power is limited to 5 W per amplifier. The gain of each amplifier is internally fixed at 26 dB. With the MODE pin, the device can be switched to the following modes: • Standby with low standby current (<50 mA) • Mute condition, DC adjusted • On, operation. The information on pin 12 (selectable clip) determines at which distortion figures a clip detection signal will be generated at the clip output. A logic 0 applied to pin 12 will select clip detection at THD = 10%, a logic 1 selects THD = 2.5%. A logic 0 can be realised by connecting this pin to ground. A logic 1 can be realised by connecting it to Vlogic (see Fig.7) or the pin can also be left open. Pin 12 may not be connected to VP because its maximum input voltage is 18 V ...