Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q FEATURES • Electrostatic discharge protection • Requires very few external components • No switch-on/switch-off plop • High output power • Flexible leads • Flexibility in use - Quad single-ended or stereo BTL • Low thermal resistance • Low output offset voltage • Identical inputs (inverting and non-inverting). • Fixed gain GENERAL DESCRIPTION • Diagnostic facility (distortion, short-circuit and temperature detection) The TDA8564Q is an integrated class-B output amplifier in a 17-lead DIL-bent-SIL power package. It contains 4 × 12 W single-ended or 2 × 24 W bridge amplifiers. • Good ripple rejection • Mode select switch (operating, mute and standby) • Load dump protection APPLICATIONS • AC and DC short-circuit safe to ground and to VP • The device is primarily developed for car radio applications. • Low power dissipation in any short-circuit condition • Thermally protected • Reverse polarity safe QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP operating supply voltage 6.0 14.4 18.0 V IORM repetitive peak output current − − 4 A Iq(tot) total quiescent current − 80 − mA Istb standby current − 0.1 100 µA − 24 − W − 41 − dB − 200 − µV Stereo BTL application RL = 4 Ω; THD = 10% Po output power SVRR supply voltage ripple rejection Vno noise output voltage |ZI| input impedance 25 − − kΩ |∆VO| DC output offset voltage − − 250 mV RL = 4 Ω; THD = 10% − 6.4 − W RL = 2 Ω; THD = 10% − 12 − W − 41 − dB − 200 − µV 50 − − kΩ Rs = 0 Ω Quad single-ended application Po output power SVRR supply voltage ripple rejection Vno noise output voltage |ZI| input impedance Rs = 0 Ω ORDERING INFORMATION PACKAGE TYPE NUMBER TDA8564Q February 1995 NAME DESCRIPTION VERSION DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm) SOT243-1 2 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q BLOCK DIAGRAM V P1 handbook, full pagewidth 5 non-inverting input 1 1 mute switch VP2 13 Cm 60 kΩ TDA8564Q 6 VA output 1 180 Ω 18 kΩ power stage mute switch inverting input 2 Cm 60 kΩ 3 8 VA output 2 180 Ω 18 kΩ power stage VP stand-by switch PROTECTIONS thermal short-circuit 4 non-inverting input 4 17 16 diagnostic output mute switch x1 supply voltage ripple rejection mode select switch standby reference voltage VA 15 kΩ 14 15 kΩ mute reference voltage Cm mute switch 60 kΩ 12 VA output 4 180 Ω 18 kΩ power stage mute switch inverting input 3 Cm 60 kΩ 15 10 VA 180 Ω 2 ground (signal) input reference voltage 18 kΩ power stage 9 7 11 GND1 GND2 not connected power ground (substrate) Fig.1 Block diagram. February 1995 3 MLC809 output 3 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q PINNING SYMBOL PIN DESCRIPTION −INV1 1 non-inverting input 1 SGND 2 signal ground INV2 3 inverting input 2 SVRR 4 supply voltage ripple rejection VP1 5 supply voltage 1 handbook, halfpage INV1 1 SGND 2 INV2 3 SVRR 4 V P1 5 OUT1 6 output 1 GND1 7 power ground 1 OUT1 6 OUT2 8 output 2 GND1 7 n.c. 9 not connected OUT2 8 OUT3 10 output 3 n.c. 9 GND2 11 power ground 2 OUT4 12 output 4 VP2 13 supply voltage 2 MODE 14 mode select switch input INV3 15 inverting input 3 VDIAG 16 diagnostic output −INV4 17 non-inverting input 4 TDA8564Q OUT3 10 GND2 11 OUT4 12 V P2 13 MODE 14 INV3 15 V DIAG 16 FUNCTIONAL DESCRIPTION INV4 17 The TDA8564Q contains four identical amplifiers which can be used for single-ended or bridge applications. The gain of each amplifier is fixed at 40 dB (46 dB in BTL). Special features of the device are as follows. MLC810 Fig.2 Pin configuration. Mode select switch (pin 14) • Low standby current (<100 µA) • Low switching current (low cost supply switch) handbook, halfpage VP • Mute facility. To avoid switch-on plops, it is advised to keep the amplifier in the mute mode during ≥100 ms (charging of the input capacitors at pins 1, 3, 15 and 17). 10 kΩ 10 kΩ mode select switch This can be achieved by: • Microcontroller control 47 µF • External timing circuit (see Fig.3). The circuit in Fig.3 slowly ramps up the voltage at the mode select switch pin when switching on and results in fast muting when switching off. MGA708 In the event of fast switching at mode select pin it is advised to increase the 1⁄2VP decoupling capacitor (pin 4) to 150 µF to avoid switch plops. February 1995 100 kΩ Fig.3 Mode select switch circuitry. 4 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q approximately 20 ms. After that time it is checked during approximately 50 µs to see whether the short-circuit is still present. Due to this duty cycle of 50 µs/20 ms the average current consumption during this short-circuit condition is very low (approximately 40 mA). Diagnostic output (pin 16) DYNAMIC DISTORTION DETECTOR (DDD) At the onset of clipping of one or more output stages, the dynamic distortion detector becomes active and pin 16 goes LOW. This information can be used to drive a sound processor or DC volume control to attenuate the input signal and thus limit the distortion. The output level of pin 16 is independent of the number of channels that are clipping (see Figs 4 and 5). During this short-circuit condition, pin 16 is LOW for 20 ms and HIGH for 50 µs (see Fig.6). The power dissipation in any short-circuit condition is very low. SHORT-CIRCUIT PROTECTION TEMPERATURE DETECTION When a short-circuit occurs at one or more outputs to ground or to the supply voltage, the output stages are switched off until the short-circuit is removed and the device is switched on again, with a delay of approximately 20 ms after removal of the short-circuit. During this short-circuit condition, pin 16 is continuously LOW. When the virtual junction temperature Tvj reaches 150 °C, pin 16 will be active LOW. OPEN-COLLECTOR OUTPUT Pin 16 is an open-collector output, which allows pin 16 of more devices being tied together. When a short-circuit across the load of one or more channels occurs the output stages are switched off during MGA705 handbook, halfpage VO handbook, halfpage VO 0 MGA706 0 V16 V16 VP VP 0 0 t Fig.5 Fig.4 Distortion detector waveform; BTL application. handbook, full pagewidthcurrent MGA707 in output stage V16 t Distortion detector waveform; single-ended application. t short-circuit over the load 20 ms VP t 50 µs Fig.6 Short-circuit waveform. February 1995 5 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER VP CONDITIONS MIN. MAX. UNIT supply voltage operating − 18 V non-operating − 30 V − 45 V Vpsc AC and DC short-circuit safe voltage during 50 ms; tr ≥ 2.5 ms − 18 V Vpr reverse polarity − 6 V IOSM non-repetitive peak output current − 6 A IORM repetitive peak output current − 4 A Ptot total power dissipation − 60 W Tstg storage temperature −55 +150 °C Tamb operating ambient temperature −40 +85 °C Tvj virtual junction temperature − 150 °C load dump protection THERMAL CHARACTERISTICS SYMBOL PARAMETER VALUE UNIT Rth j-a thermal resistance from junction to ambient in free air 40 K/W Rth j-c thermal resistance from junction to case (see Figs 7 and 8) 1.3 K/W virtual junction handbook, halfpage output 1 output 1 handbook, halfpage output 3 output 2 output 4 output 2 virtual junction 3.0 K/W 3.0 K/W 3.0 K/W 3.0 K/W 2.2 K/W 2.2 K/W 0.7 K/W 0.7 K/W 0.2 K/W MEA861 - 1 case MEA860 - 2 0.2 K/W case Fig.7 Equivalent thermal resistance network; BTL application. February 1995 Fig.8 6 Equivalent thermal resistance network; single-ended application. Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q DC CHARACTERISTICS VP = 14.4 V; Tamb = 25 °C; measured in Fig.17; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply VP supply voltage note 1 6.0 14.4 18.0 V Iq quiescent current see Fig.9 − 80 160 mA VO DC output voltage note 2 − 6.9 − V |∆VO| DC output offset voltage − − 250 mV 8.5 − − V 3.3 − 6.4 V − − 20 mV − − 250 mV Mute select switch V14 switch-on voltage level MUTE CONDITION Vmute mute voltage VO output signal in mute position |∆VO| DC output offset voltage VI(max) = 1 V; f = 1 kHz STANDBY CONDITION Vstb DC voltage in standby condition 0 − 2 V Istb DC current in standby condition − − 100 µA Isw switch-on current − 12 40 µA − − 0.6 V Diagnostic output (pin 16) VDIAG diagnostic output voltage any short-circuit or clipping Notes 1. The circuit is DC adjusted at VP = 6 to 18 V and AC operating at VP = 8.5 to 18 V. 2. At 18 V < VP < 30 V the DC output voltage ≤1⁄2VP. February 1995 7 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q AC CHARACTERISTICS VP = 14.4 V; RL = 4 Ω; f = 1 kHz; Tamb = 25 °C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Stereo BTL application (measured in Fig.17) Po Po output power output power THD = 0.5%; note 1 15 19 − W THD = 10%; note 1 20 24 − W W VP = 13.2 V; THD = 0.5%; note 1 − 16 − VP = 13.2 V; THD = 10%; note 1 − 20 − W − 0.1 − % THD total harmonic distortion Po = 1 W flr low frequency roll-off at −1 dB; note 2 − 45 − Hz fhr high frequency roll-off at −1 dB 20 − − kHz Gv closed loop voltage gain 45 46 47 dB SVRR supply voltage ripple rejection − dB dB on note 3 38 41 mute note 3 42 48 − standby note 3 80 − − dB 25 30 38 kΩ µV |Zi| input impedance Vno noise output voltage on Rs = 0 Ω; note 4 − 200 − on Rs = 10 kΩ; note 4 − 350 700 µV mute notes 4 and 5 − 180 − µV Rs = 10 kΩ 40 − − dB − − 1 dB − 10 − % αcs channel separation |∆Gv| channel unbalance DYNAMIC DISTORTION DETECTOR THD February 1995 total harmonic distortion V16 ≤ 0.6 V; no short-circuit 8 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier SYMBOL PARAMETER TDA8564Q CONDITIONS MIN. TYP. MAX. UNIT Quad single-ended application (measured in Fig.18) Po output power Po output power THD total harmonic distortion flr THD = 0.5%; note 1 4 5 − W THD = 10%; note 1 5.5 6.4 − W RL = 2 Ω; THD = 0.5%; note 1 7.5 8.5 − W RL = 2 Ω; THD = 10%; note 1 10 12 − W Po = 1 W − 0.15 − % low frequency roll-off at −3 dB; note 2 − 45 − Hz fhr high frequency roll-off at −1 dB 20 − − kHz Gv closed loop voltage gain 39 40 41 dB SVRR supply voltage ripple rejection on note 3 38 41 − dB mute note 3 42 48 − dB standby note 3 80 90 − dB 50 60 75 kΩ |Zi| input impedance Vno noise output voltage on Rs = 0 Ω; note 4 − 200 300 µV on Rs = 10 kΩ; note 4 − 250 − µV mute notes 4 and 5 − 175 − µV Rs = 10 kΩ 40 52 − dB − − 1 dB − 10 − % αcs channel separation |∆Gv| channel unbalance DYNAMIC DISTORTION DETECTOR THD total harmonic distortion V16 ≤ 0.6 V; no short-circuit Notes 1. Output power is measured directly at the output pins of the IC. 2. Frequency response externally fixed. 3. Ripple rejection measured at the output with a source impedance of 0 Ω, maximum ripple amplitude of 2 V (p-p). 4. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz. 5. Noise output voltage independent of Rs (VI = 0 V). February 1995 9 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q MGA714 100 handbook, full pagewidth Iq (mA) 92 84 76 68 60 8 10 12 14 16 18 VP (V) Fig.9 Quiescent current as a function of supply voltage; RL = ∞. MLC811 10 handbook, full pagewidth THD (%) 1 (1) 10 1 10 2 10 1 1 10 P o (W) (1) f = 1 kHz. Fig.10 Total harmonic distortion as a function of output power; VP = 14.4 V; RL = 4 Ω (BTL). February 1995 10 10 2 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q MGA710 50 handbook, full pagewidth Po (W) 40 (1) 30 (2) 20 (3) 10 0 8 10 12 14 16 VP (V) 18 (1) THD = 30%. (2) THD = 10%. (3) THD = 0.5%. Fig.11 Output power as a function of supply voltage (BTL). MLC812 10 handbook, full pagewidth THD (%) 1 (1) 10 1 10 2 10 1 1 10 P o (W) 10 2 (1) f = 1 kHz. Fig.12 Total harmonic distortion as a function of output power; VP = 14.4 V; RL = 4 Ω (single-ended). February 1995 11 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q MGA716 15 handbook, full pagewidth Po (W) 12 (1) 9 (2) 6 (3) 3 0 8 10 12 14 16 18 VP (V) (1) THD = 30%. (2) THD = 10%. (3) THD = 0.5%. Fig.13 Output power as a function of supply voltage (single-ended). MLC813 1 handbook, full pagewidth THD (%) (1) 10 1 10 2 10 10 2 10 3 10 4 f (Hz) 10 5 (1) Po = 1 W. Fig.14 Total harmonic distortion as a function of frequency; VP = 14.4 V; RL = 4 Ω (single-ended). February 1995 12 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q MGA719 30 handbook, full pagewidth α cs (dB) 40 50 60 70 80 10 10 2 10 3 10 4 f (Hz) 10 5 Fig.15 Channel separation as a function of frequency. MLC814 35 handbook, full pagewidth SVRR (dB) 40 (1) 45 50 55 60 10 10 2 10 3 10 4 f (Hz) 10 5 (1) On condition. Fig.16 Ripple rejection as a function of frequency; VP = 14.4 V; Vripple = 2 V (p-p); Rs = 0 Ω (single-ended). February 1995 13 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8564Q TEST AND APPLICATION INFORMATION VP mode switch handbook, full pagewidth diagnostic 16 14 non- inverting input 1 220 nF 100 nF 10 kΩ 5 2200 µF 13 TDA8564Q 1 6 60 kΩ 8 inverting input 2 ground (signal) supply voltage ripple rejection non-inverting input 4 220 nF 3 2 60 kΩ reference voltage 4 9 60 kΩ 17 12 60 kΩ 10 inverting input 3 15 7 11 MGC046 power ground (substrate) Fig.17 Stereo BTL application circuit diagram. February 1995 14 not connected Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier VP mode switch handbook, full pagewidth 220 nF 2200 µF 100 nF 10 kΩ 16 14 non- inverting input 1 TDA8564Q 5 13 TDA8564Q 1 6 1000 µF 60 kΩ inverting input 2 220 nF ground (signal) 8 3 1000 µF 2 60 kΩ reference voltage 4 supply voltage ripple rejection 1/2Vp 9 60 kΩ not connected 17 non-inverting input 4 12 220 nF 1000 µF 60 kΩ inverting input 3 220 nF 10 15 1000 µF 7 11 MGC047 power ground (substrate) Fig.18 Quad single-ended application circuit diagram 1. February 1995 15 Philips Semiconductors Preliminary specification 2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier VP mode switch handbook, full pagewidth 220 nF 2200 µF 100 nF 10 kΩ 16 14 non- inverting input 1 TDA8564Q 5 13 TDA8564Q 1 6 60 kΩ inverting input 2 220 nF ground (signal) not connected 8 3 2 60 kΩ reference voltage 9 4 60 kΩ 100 µF 17 non-inverting input 4 SVRR (1) D1 12 220 nF 60 kΩ inverting input 3 220 nF 10 15 7 11 MGC048 power ground (substrate) (1) When short-circuiting the single-ended capacitor, the dissipation will be reduced due diode D1. Fig.19 Quad single-ended application circuit diagram 2. February 1995 16 2200 µF