TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 D D D D D D D TDA1517P Compatible High Power Outputs (6 W/Channel) Surface Mount Availability 20-Pin Thermal SOIC PowerPAD Thermal Protection Fixed Gain . . . 20 dB Mute and Standby Operation Supply Range . . . 9.5 V – 18 V DWP PACKAGE (TOP VIEW) NE PACKAGE (TOP VIEW) IN1 SGND SVRR OUT1 PGND OUT2 VCC M/SB IN2 GND/HS 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 1 2 3 4 5 6 7 8 9 10 GND/HS IN1 NC SGND SVRR NC OUT1 OUT1 PGND GND/HS GND/HS GND/HS GND/HS GND/HS GND/HS GND/HS GND/HS GND/HS GND/HS GND/HS 20 19 18 17 16 15 14 13 12 11 GND/HS IN2 NC M/SB VCC NC OUT2 OUT2 PGND GND/HS Cross Section View Showing PowerPAD NC – No internal connection description The TPA1517 is a stereo audio power amplifier that contains two identical amplifiers capable of delivering 6 W per channel of continuous average power into a 4-Ω load at 10% THD+N or 5 W per channel at 1% THD+N. The gain of each channel is fixed at 20 dB. The amplifier features a mute/standby function for power-sensitive applications. The amplifier is available in Texas Instruments patented PowerPAD 20-pin surface-mount thermally-enhanced package (DWP) that reduces board space and facilitates automated assembly while maintaining exceptional thermal characteristics. It is also available in the 20-pin thermally enhanced DIP package (NE). AVAILABLE OPTIONS PACKAGED DEVICES TA THERMALLY ENHANCED PLASTIC DIP THERMALLY† ENHANCED SURFACE MOUNT (DWP) – 40°C to 85°C TPA1517NE TPA1517DWP † The DWP package is available taped and reeled. To order a taped and reeled part, add the suffix R (e.g., TPA1517DWPR). Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a trademark of Texas Instruments Incorporated. Copyright 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 Terminal Functions TERMINAL ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ DWP NO. NE NO. I/O IN1 2 1 I IN1 is the audio input for channel 1. SGND 4 2 I SGND is the input signal ground reference. SVRR 5 3 OUT1 7, 8 4 PGND 9, 12 5 OUT2 13, 14 6 O OUT2 is the audio output for channel 2. VCC M/SB 16 7 I 17 8 I VCC is the supply voltage input. M/SB is the mute/standby mode enable. When held at less than 2 V, this signal enables the TPA1517 for standby operation. When held between 3.4 V and 8.8 V, this signal enables the TPA1517 for mute operation. When held above 9.2 V, the TPA1517 operates normally. 19 9 I IN2 in the audio input for channel 2. 1, 10, 11, 20 10– 20 NAME IN2 GND/HS DESCRIPTION SVRR is the midrail bypass mode enable. O OUT1 is the audio output for channel 1. PGND is the power ground reference. GND/HS are the ground and heatsink connections. All GND/HS terminals are connected directly to the mount pad for thermal-enhanced operation. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 V Input voltage, VI (IN1, IN2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 V Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . Internally limited (See Dissipation Rating Table) Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 85°C Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 150°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: DWP or NE package . . . . . . . . . . . . 260°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: These devices have been classified as Class 1 ESD sensitive products per MIL-PRF-38535 Method 3015.7. Appropriate precautions should be taken to prevent serious damage to the device. ÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ DISSIPATION RATING TABLE PACKAGE DWP‡ TA ≤ 25°C 2.94 W DERATING FACTOR 23.5 mW/°C TA = 70°C 1.88 W TA = 85°C 1.53 W 2.85 W 22.8 mW/°C 1.82 W 1.48 W NE‡ ‡ See the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report (literature number SLMA002), for more information on the PowerPAD package. The thermal data was measured on a PCB layout based on the information in the section entitled Texas Instruments Recommended Board for PowerPAD on page 33 of the before mentioned document. recommended operating conditions ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ MIN Supply voltage, VCC Operating free-air temperature, TA 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 NOM MAX UNIT 9.5 18 V – 40 85 °C TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 electrical characteristics, VCC = 12 V, TA = 25°C (unless otherwise noted) ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ PARAMETER ICC VO(DC) Supply current V(M/SB) VO(M) M/SB on voltage ICC(SB) Supply current in standby mode TEST CONDITIONS DC output voltage MIN TYP MAX 45 70 See Note 2 Mute output voltage UNIT mA 4 V 9.5 V VI = 1 V (max) 2 7 mV 100 µA NOTE 2: At 6 V < VCC < 18 V the DC output voltage is approximately VCC/2. electrical characteristics, VCC = 14.5 V, TA = 25°C (unless otherwise noted) ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ PARAMETER TEST CONDITIONS ICC VO(DC) Supply current V(M/SB) VO(M) Voltage on M/SB terminal for normal operation ICC(SB) Supply current in standby mode DC output voltage MIN TYP MAX 50 80 See Note 2 5 VI = 1 V (max) V 2 7 mA V 9.5 Mute output voltage UNIT mV 100 µA NOTE 2: At 6 V < VCC < 18 V the DC output voltage is approximately VCC/2. operating characteristic, VCC = 12 V, RL = 4 Ω, f = 1 kHz, TA = 25°C ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ Á ÁÁÁ ÁÁ Á ÁÁÁ ÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ PARAMETER PO Output power (see Note 3) SNR Signal-to-noise ratio THD Total harmonic distortion IO(SM) IO(RM) Non-repetitive peak output current TEST CONDITIONS MIN 3 THD = 10% 6 RL = 8 Ω, f = 1 kHz –3 dB High-frequency roll-off –1 dB Supply ripple rejection ratio M/SB = On, Vn Noise output voltage (see Note 4) dB 0.1% A 2.5 A 45 Hz 20 f = 1 kHz kHz 65 dB 60 kΩ Rs = 0, M/SB = On 50 µV(rms) Rs = 10 kΩ, M/SB = On 70 µV(rms) 50 µV(rms) M/SB = Mute Channel separation UNIT W 4 Low-frequency roll-off Input impedance MAX 84 PO = 1 W, Repetitive peak output current ZI TYP THD = 0.2% Rs = 10 kΩ Gain 58 18.5 Channel balance dB 20 21 0.1 1 dB NOTES: 3. Output power is measured at the output terminals of the IC. 4. Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 operating characteristic, VCC = 14.5 V, RL = 4 Ω, f = 1 kHz, TA = 25°C ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ Á ÁÁÁ ÁÁ Á ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ PARAMETER PO Output power (see Note 3) SNR Signal-to-noise ratio THD Total harmonic distortion IO(SM) IO(RM) Non-repetitive peak output current ZI Vn TEST CONDITIONS MIN THD = 0.2% PO = 1 W Low-frequency roll-off – 3 dB High-frequency roll-off –1 dB Supply ripple rejection ratio W 6 W 84 dB M/SB = On 4 A 2.5 A 45 Hz 20 Input impedance kHz 65 dB 60 kΩ Rs = 0, M/SB = On 50 µV(rms) Rs = 10 kΩ, M/SB = On 70 µV(rms) M/SB = Mute 50 µV(rms) Rs = 10 kΩ 58 dB Gain 18.5 Channel balance 20 21 dB 0.1 1 dB NOTES: 3. Output power is measured at the output terminals of the IC. 4. Noise voltage is measured in a bandwidth of 22 Hz to 22 kHz. TYPICAL CHARACTERISTICS Table of Graphs FIGURE ICC THD + N 4 Supply current vs Supply voltage Power supply rejection ratio vs Frequency 1 2, 3 VCC = 12 V vs Frequency vs Power output 4, 5, 6 10, 11 VCC = 14.5 V vs Frequency vs Power output 7, 8, 9 12, 13 Crosstalk vs Frequency 14, 15 Gain vs Frequency 16 Total harmonic distortion plus noise Phase vs Frequency 16 Vn Noise voltage vs Frequency 17, 18 PO Output power vs Supply voltage vs Load resistance PD Power dissipation vs Output power POST OFFICE BOX 655303 UNIT 0.1% Repetitive peak output current Channel separation MAX 4.5 THD < 10% Noise output voltage (see Note 4) TYP • DALLAS, TEXAS 75265 19 20 21, 22 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS SUPPLY RIPPLE REJECTION RATIO vs FREQUENCY SUPPLY CURRENT vs SUPPLY VOLTAGE 0 100 VCC = 12 V RL = 4 Ω CB = 100 µF Supply Ripple Rejection Ratio – dB I CC – Supply Current – mA – 10 75 50 25 – 20 – 30 – 40 – 50 – 60 – 70 – 80 – 90 – 100 100 0 8 10 14 16 12 VCC – Supply Voltage – V 18 20 1k Figure 1 Figure 2 TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY SUPPLY RIPPLE REJECTION RATIO vs FREQUENCY 10% 0 VCC = 14.5 V RL = 4 Ω THD+N – Total Harmonic Distortion + Noise Supply Ripple Rejection Ratio – dB – 10 – 20 – 30 – 40 – 50 – 60 – 70 – 80 – 90 – 100 100 10 k f – Frequency – Hz VCC = 12 V RL = 4 Ω PO = 3 W Both Channels 1% 0.1% 0.01% 1k 10 K 20 f – Frequency – Hz 100 1k 10 k 20 k f – Frequency – Hz Figure 3 Figure 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY 10% VCC = 12 V RL = 8 Ω PO = 1 W Both Channels THD+N – Total Harmonic Distortion + Noise THD+N – Total Harmonic Distortion + Noise 10% 1% 0.1% 0.01% VCC = 12 V RL = 32 Ω PO = 0.25 W 1% 0.1% 0.01% 20 100 1k 20 10 k 20 k 100 f – Frequency – Hz Figure 5 TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY 10% 10% VCC = 14.5 V RL = 4 Ω PO = 3 W THD+N – Total Harmonic Distortion + Noise THD+N – Total Harmonic Distortion + Noise 10 k 20 k Figure 6 TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY 1% 0.1% 0.01% VCC = 14.5 V RL = 8 Ω PO = 1.5 W 1% 0.1% 0.01% 20 100 1k 10 k 20 k 20 f – Frequency – Hz 100 1k f – Frequency – Hz Figure 7 6 1k f – Frequency – Hz Figure 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 10 k 20 k TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY TOTAL HARMONIC DISTORTION PLUS NOISE vs POWER OUTPUT 10% VCC = 14.5 V RL = 32 Ω PO = 0.25 W THD+N – Total Harmonic Distortion + Noise THD+N – Total Harmonic Distortion + Noise 10% 1% 0.1% 0.01% 20 100 f = 20 kHz 1% f = 20 Hz 0.1% f = 1 kHz 0.01% 0.01 10 k 20 k 1k VCC = 12 V RL = 4 Ω Both Channels 0.1 1 PO – Power Output – W f – Frequency – Hz Figure 9 Figure 10 TOTAL HARMONIC DISTORTION PLUS NOISE vs POWER OUTPUT 1% 10% VCC = 12 V RL = 8 Ω Both Channels f = 20 kHz f = 20 Hz 0.1% f = 1 kHz 0.01% 0.01 TOTAL HARMONIC DISTORTION PLUS NOISE vs POWER OUTPUT THD+N – Total Harmonic Distortion + Noise THD+N – Total Harmonic Distortion + Noise 10% 10 0.1 1 PO – Power Output – W 10 VCC = 14.5 V RL = 4 Ω Both Channels f = 20 kHz 1% f = 20 Hz 0.1% f = 1 kHz 0.01% 0.01 Figure 11 0.1 1 PO – Power Output – W 10 Figure 12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS TOTAL HARMONIC DISTORTION PLUS NOISE vs POWER OUTPUT – 40 VCC = 14.5 V RL = 8 Ω Both Channels VCC = 12 V RL = 4 Ω PO = 3 W Both Channels – 45 – 50 f = 20 kHz 1% Crosstalk – dB THD+N – Total Harmonic Distortion + Noise 10% CROSSTALK vs FREQUENCY f = 20 Hz – 55 – 60 – 65 0.1% – 70 f = 1 kHz – 75 0.01% 0.01 – 80 0.1 1 PO – Power Output – W 20 10 100 1k f – Frequency – Hz Figure 13 Figure 14 CROSSTALK vs FREQUENCY – 40 VCC = 14.5 V RL = 4 Ω PO = 5 W Both Channels – 45 Crosstalk – dB – 50 – 55 – 60 – 65 – 70 – 75 – 80 20 100 1k 10 k 20 k f – Frequency – Hz Figure 15 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 10 k 20 k TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS GAIN AND PHASE vs FREQUENCY 20 VCC = 12 V RL = 4 Ω Gain 200° 10 100° – 10 0° Phase Gain – dB 0 Phase – 20 –100° – 30 – 40 –200° 10 100 1k 100 k 10 k 1M f – Frequency – Hz Figure 16 NOISE VOLTAGE vs FREQUENCY NOISE VOLTAGE vs FREQUENCY 1 VCC = 12 V BW = 22 Hz to 22 kHz RL = 4 Ω Both Channels VCC = 14.5 V BW = 22 Hz to 22 kHz RL = 4 Ω Both Channels V n – Noise Voltage – mV V n – Noise Voltage – mV 1 0.1 0.01 20 100 1k 10 k 20 k 0.1 0.01 20 100 1k f – Frequency – Hz f – Frequency – Hz Figure 17 Figure 18 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 10 k 20 k 9 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS OUTPUT POWER vs SUPPLY VOLTAGE OUTPUT POWER vs LOAD RESISTANCE 8 6 THD < 1% THD < 1% PO – Output Power – W PO – Output Power – W 5 6 RL = 4 Ω 4 RL = 8 Ω 2 VCC = 14.5 V 4 VCC = 12 V 3 2 1 0 0 8 9 10 11 12 13 14 15 16 VCC – Supply Voltage – V 17 18 8 10 12 14 16 18 20 22 24 26 28 30 32 RL – Load Resistance – Ω 2 4 6 Figure 19 Figure 20 POWER DISSIPATION vs OUTPUT POWER POWER DISSIPATION vs OUTPUT POWER 3.5 3.5 VCC = 14.5 V VCC = 12 V 3 PD – Power Dissipation – W PD – Power Dissipation – W 3 2.5 RL = 4 Ω 2 1.5 RL = 8 Ω 1 RL = 4 Ω 2.5 2 RL = 8 Ω 1.5 1 0.5 0.5 0 1 2 3 4 PO – Output Power – W 5 6 0 1 Figure 21 10 4 2 3 PO – Output Power – W Figure 22 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 6 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 APPLICATION INFORMATION amplifier operation The TPA1517 is a stereo audio power amplifier designed to drive 4-Ω speakers at up to 6 W per channel. Figure 23 is a schematic diagram of the minimum recommended configuration of the amplifier. Gain is internally fixed at 20 dB (gain of 10 V/V). VCC 7 1 IN1 + 1 µF 60 k COR – + – + OUT1 4 ×1 470 µF 2.1 Vref 2 Ref 1 µF CS CIR Right VCC 5 VCC SGND VCC 18 kΩ PGND 2 kΩ 15 kΩ ×1 3 SVRR CB Mute Standby M/SB 8 2 kΩ 15 kΩ 2.2 µF 10 kΩ S1 Mute/Standby Switch (see Note A) 18 kΩ 6.8 kΩ 2.1 Vref S2 Mute/Standby Select (see Note B) COL 60 k CIL 9 IN2 Left – + + – + OUT2 6 ×1 470 µF 1 µF GND/HS 10 – 20 Copper Plane NOTES: A. When S1 is open, the TPA1517 operates normally. When this switch is closed, the device is in mute/standby mode. B. When S2 is open, activating S1 places the TPA1517 in mute mode. When S2 is closed, activating S1 places the TPA1517 in standby mode. C. The terminal numbers are for the 20-pin NE package. Figure 23. TPA1517 Minimum Configuration ǒ Ǔ The following equation is used to relate gain in V/V to dB: G dB + 20 LOG GVńV POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 11 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 APPLICATION INFORMATION The audio outputs are biased to a midrail voltage which is shown by the following equation: V MID + VCC 2 The audio inputs are always biased to 2.1 V when in mute or normal mode. Any dc offset between the input signal source and the input terminal is amplified and can seriously degrade the performance of the amplifier. For this reason, it is recommended that the inputs always be connected through a series capacitor (ac coupled). The power outputs, also having a dc bias, must be connected to the speakers via series capacitors. mute/standby operation The TPA1517 has three modes of operation; normal, mute, and standby. They are controlled by the voltage on the M/SB terminal as described in Figure 24. In normal mode, the TPA1517 amplifies the signal applied to the two input terminals providing low impedance drive to speakers connected to the output terminals. In mute mode, the amplifier retains all bias voltages and quiescent supply current levels but does not pass the input signal to the output. In standby mode, the internal bias generators and power-drive stages are turned off, thereby reducing the supply current levels. V I(M/SB) – Input Voltage on M/SB – V 22 NORMAL Undetermined State 9.2 8.8 MUTE 3.4 2 Undetermined State STANDBY 0 Figure 24. Standby, Mute, and Normal (On) Operating Conditions The designer must take care to place the control voltages within the defined ranges for each desired mode, whenever an external circuit is used to control the input voltage at the M/SB terminal. The undefined area can cause unpredictable performance and should be avoided. As the control voltage moves through the undefined areas pop or click sounds may be heard in the speaker. Moving from mute to normal causes a very small click sound. Whereas moving from standby to mute can cause a much larger pop sound. Figure 25 shows external circuitry designed to help reduce transition pops when moving from standby mode to normal mode. 12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 APPLICATION INFORMATION Figure 25 is a reference schematic that provides TTL-level control of the M/SB terminal. A diode network is also included which helps reduce turn-on pop noises. The diodes serve to drain the charge out of the output coupling capacitors while the amplifier is in shutdown mode. When the M/SB voltage is in the normal operating range, the diodes have no effect on the ac performance of the system. VCC 7 CIR 1 Right VCC 1 µF CS IN1 1 µF + 60 k COR 470 µF – + – + OUT1 4 ×1 1N914 2.1 Vref 220 Ω 18 kΩ 2 Ref 5 SGND S1 See Note A VCC VCC 2 kΩ PGND 10 kΩ 10 kΩ 15 kΩ Mute Standby ×1 3 SVRR M/SB 8 47 kΩ 47 kΩ 47 kΩ Q1 CB 2.2 µF 15 kΩ Q2 2 kΩ 1N914 S2 See Note B 6.8 kΩ 18 kΩ TTL Control Low – Mute High – On 10 kΩ 2.1 Vref COL 60 k CIL 9 IN2 Left 1 µF – + + – + OUT2 6 ×1 470 µF GND/HS 10 – 20 Copper Plane NOTES: A. When S1 is closed, the depop circuitry is active during standby mode. B. When S2 is open, activating S1 places the TPA1517 in mute mode. When S2 is closed, activating S1 places the TPA1517 in standby mode. C. The terminal numbers are for the 20-pin NE package. Figure 25. TTL Control with POP Reduction POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 13 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 APPLICATION INFORMATION component selection Some of the general concerns for selection of capacitors are: D D D Leakage currents on aluminum electrolytic capacitors ESR (equivalent series resistance) Temperature ratings leakage currents Leakage currents on most ceramic, polystyrene, and paper capacitors are negligible for this application. Leakage currents for aluminum electrolytic and tantalum tend to be higher. This is especially important on the input terminals and the SVRR capacitor. These nodes encounter from 3 V to 7 V, and need to have leakage currents less than 1 µA to keep from affecting the output power and noise performance. equivalent series resistance ESR is mainly important on the output coupling capacitor, where even 1 Ω of ESR in CO with an 8-Ω speaker can reduce the output drive power by 12.5%. ESR should be considered across the frequency range of interest, (i.e., 20 Hz to 20 kHz). The following equation calculates the amount of power lost in the coupling capacitor: % Power in C O + ESR R L In general, the power supply decoupling requires a very low ESR as well to take advantage of the full output drive current. temperature range The temperature range of the capacitors may or may not seem like an obvious thing to specify, but it is very important. Many of the high-density capacitors perform very differently at different temperatures. When consistent high performance is required from the system over temperature in terms of low THD, maximum output power, and turn-on/off popping, then interactions of the coupling capacitors and the SVRR capacitors need to be considered, as well as the change in ESR on the output capacitor with temperature. turn-on pop consideration To select the proper input coupling capacitor, the designer should select a capacitor large enough to allow the lowest desired frequency pass and small enough that the time constant is shorter than the output RC time constant to minimize turn-on popping. The input time constant for the TPA1517 is determined by the input 60-kΩ resistance of the amplifier, and the input coupling capacitor according to the following generic equation: TC + 2 p1RC For example, 8-Ω speakers and 220-µF output coupling capacitors would yield a 90-Hz cut-off point for the output RC network. The input network should be the same speed or faster ( > 90 Hz TC). A good choice would be 180 Hz. As the input resistance is 60 kΩ, a 14-nF input coupling capacitor would do. The bypass-capacitor time constant should be much larger (×5) than either the input coupling capacitor time constant or the output coupling capacitor time constants. In the previous example with the 220-µF output coupling capacitor, the designer should want the bypass capacitor, TC, to be in the order of 18 Hz or lower. To get an 18-Hz time constant, CB is required to be 1 µF or larger because the resistance this capacitor sees is 7.5 kΩ. 14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 APPLICATION INFORMATION In summary, follow one of the three simple relations presented below, depending on the tradeoffs between low frequency response and turn-on pop. If depop performance is the top priority, then follow: 7 500 C B u 5 RLCO u 300 000 CI If low frequency ac response is more important but depop is still a consideration then follow: 1 2 p 60 000 C I t 10 Hz Finally, if low frequency response is most important and depop is not a consideration then follow: 1 1 ≤ ≤ f low 2 p RL CI 2 p 60 000 C I thermal applications Linear power amplifiers dissipate a significant amount of heat in the package under normal operating conditions. A typical music CD requires 12 dB to 15 dB of dynamic headroom to pass the loudest portions without distortion as compared with the average power output. Figure 19 shows that when the TPA1517 is operating from a 12-V supply into a 4-Ω speaker that approximately 3.5 W peaks are possible. Converting watts to dB using the following equation: P dB + 10 Log ǒǓ P W ǒǓ P ref + 10 Log 3.51 + 5.44 dB Subtracting dB for the headroom restriction to obtain the average listening level without distortion yields the following: * 15 dB + * 9.56 dB (15 dB headroom) 5.44 dB * 12 dB + * 6.56 dB (12 dB headroom) 5.44 dB Converting dB back into watts: PW + 10PdBń10 Pref + 111 mW (15 dB headroom) + 221 mW (12 dB headroom) This is valuable information to consider when attempting to estimate the heat dissipation requirements for the amplifier system. Comparing the absolute worst cast, which is 3.5 W of continuous power output with 0 dB of headroom, against 12-dB and 15-dB applications drastically affects maximum ambient temperature ratings for the system. Using the power dissipation curves for a 12-V, 4-Ω system, internal dissipation in the TPA1517 and maximum ambient temperatures are shown in Table 1. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 15 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 APPLICATION INFORMATION Table 1. TPA1517 Power Rating PEAK OUTPUT POWER (W) AVERAGE OUTPUT POWER POWER DISSIPATION (W/Channel) MAXIMUM AMBIENT TEMPERATURE 3.5 3.5 W 2.1 – 34°C 3.5 1.77 W (3 dB) 2.4 – 61°C 3.5 884 mW (6 dB) 2.25 – 48°C 3.5 442 mW (9 dB) 1.75 – 4°C 3.5 221 mW (12 dB) 1.5 18°C 3.5 111 mW (15 dB) 1.25 40°C The maximum ambient temperature depends on the heatsinking ability of the PCB system. Using the derating factor for the NE package with 4 square inches of copper area is 22.8 mW/°C and 38.8 mW/°C respectively. Converting this to θJA: θ JA 1 + Derating For 0 CFM : 1 + 0.0228 + 43.9°CńW To calculate maximum ambient temperatures, first consider that the numbers from the dissipation graphs are per channel so the dissipated heat needs to be doubled for two channel operation. Given θJA, the maximum allowable junction temperature and the total internal dissipation, the maximum ambient temperature can be calculated with the following equation. The maximum recommended junction temperature for the TPA1517 is 150°C. T A Max + TJ Max * qJA PD + 150 * 43.9 (1.25 2) + 40°C (15 dB headroom, 0 CFM) Table 1 clearly shows that for most applications some airflow is required to keep junction temperatures in the specified range. The TPA1517 is designed with thermal protection that turns the device off when the junction temperature surpasses 150°C to prevent damage to the IC. Using the DWP package on a multilayer PCB with internal ground planes can achieve better thermal performance. Table 1 was calculated for a maximum volume system; when the output level is reduced, the numbers in the table change significantly. Also using 8-Ω speakers dramatically increases the thermal performance by increasing amplifier efficiency. 16 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 APPLICATION INFORMATION TPA1517 NE THERMAL RESISTANCE, θJA vs COPPER AREA 90 80 θ JA – Theta JA – °C/W 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 9 10 Copper Area – in2 Figure 26 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 17 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 MECHANICAL INFORMATION DWP (R-PDSO-G20) PowerPAD PLASTIC SMALL-OUTLINE PACKAGE 0.020 (0,51) 0.014 (0,35) 0.050 (1,27) 20 0.010 (0,25) M 11 Thermal Pad 0.150 (3,81) (see Note C) 0.170 (4,31) NOM 0.299 (7,59) 0.293 (7,45) 0.430 (10,92) 0.411 (10,44) 0.010 (0,25) NOM 1 10 0.510 (12,95) 0.500 (12,70) Gage Plane 0.010 (0,25) +2°– 8° 0.050 (1,27) 0.016 (0,40) Seating Plane 0.096 (2,43) MAX 0.004 (0,10) 0.000 (0,00) 0.004 (0,10) 4073226/B 01/96 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. The thermal performance may be enhanced by bonding the thermal pad to an external thermal plane. This solderable pad is electrically and thermally connected to the backside of the die and leads 1, 10, 11 and 20. PowerPAD is a trademark of Texas Instruments Incorporated. 18 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPA1517 6-W STEREO AUDIO POWER AMPLIFIER SLOS162B – MARCH 1997 – REVISED MARCH 2000 MECHANICAL INFORMATION NE (R-PDIP-T**) PLASTIC DUAL-IN-LINE PACKAGE 20 PIN SHOWN 0.070 (1,78) MAX 11 20 PINS ** DIM A C 1 20 0.914 (23,22) MIN MAX B 16 0.780 (19,80) 0.975 (24,77) MIN 0.930 (23,62) MAX 1.000 (25,40) 10 C MIN 0.240 (6,10) 0.260 (6,61) MAX 0.260 (6,60) 0.280 (7,11) 0.020 (0,51) MIN A 0.200 (5,08) MAX Seating Plane 0.155 (3,94) 0.125 (3,17) 0.100 (2,54) 0.021 (0,533) 0.015 (0,381) 0.010 (0,25) M 0.310 (7,87) 0.290 (7,37) 0.020 (0,51) MIN B 0.200 (5,08) MAX Seating Plane 0.155 (3,94) 0.125 (3,17) 0.100 (2,54) 0.021 (0,533) 0.015 (0,381) 0.010 (0,25) M 0°– 15° 0.010 (0,25) NOM 4040054 / B 04/95 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Falls within JEDEC MS-001 (16 pin only) POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 19 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. 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