Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Audio amplifier 2-channel (stereo) Class D VQFN 48 (7x7)

QFN

HTQFP

Simplified ApplicationCircuit

TV Audio

Processor

RINP

BSRN

BSRP

VCLAMPR

VCLAMPL

PGNDR

PGNDL

VREG

VBYP

ROSC

BSLN

ROUTN

LOUTN

LOUTP

BSLP

ROUTP

TPA3101D2

LINN

RINN

LINP

MUTE

GAIN0

GAIN1

SYNC

FAULT

PVCCR

PVCCL

AVCC

AGND

MSTR/SLV

SHUTDOWN

Shutdown

Control

MuteControl

SyncControl

FaultFlag

10Vto26V

GainSelect

1 Fm

10nF

100kW

0.22 Fm

1 Fm

TPA3101D2

www.ti.com

SLOS473C –DECEMBER 2005–REVISED SEPTEMBER 2007

10-W STEREO CLASS-D AUDIO POWER AMPLIFIER

Check for Samples: TPA3101D2

FEATURES

APPLICATIONS

• Televisions

• 10-W/ch into an 8-Ω Load From a 13-V Supply

• 9.2-W/ch into an 8-Ω Load From a 12-V Supply

DESCRIPTION

• Operates from 10 V to 26 V

The TPA3101D2 is a 10-W (per channel) efficient,

• 87% Efficient Class-D Operation Eliminates

Class-D audio power amplifier for driving bridged-tied

Need for Heat Sinks

stereo speakers. The TPA3101D2 can drive stereo

• Four Selectable, Fixed Gain Settings

speakers as low as 4 Ω. The high efficiency of the

• Differential Inputs TPA3101D2, 87%, eliminates the need for an

external heat sink when playing music.

• Thermal and Short-Circuit Protection With

Auto Recovery Feature

The gain of the amplifier is controlled by two gain

select pins. The gain selections are 20, 26, 32,

• Clock Output for Synchronization With

36 dB.

Multiple Class-D Devices

The outputs are fully protected against shorts to

• Surface Mount 7 mm × 7 mm, 48-pin QFN

GND, V

, and output-to-output shorts with an auto

Package

recovery feature and monitor output.

• Surface Mount 7 mm × 7 mm, 48-pin HTQFP

Package

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (43 pages)

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TPA3101D2 HTQFP QFN www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 10-W STEREO CLASS-D AUDIO POWER AMPLIFIER Check for Samples: TPA3101D2 FEATURES APPLICATIONS • • • • • 1 • • • • • • 10-W/ch into an 8-Ω Load From a 13-V Supply 9.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) UNIT VCC Supply voltage VI Input voltage AVCC, PVCC –0.3 V to 30 V SHUTDOWN, MUTE –0.3 V to VCC + 0.
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TPA3101D2 www.ti.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com DC CHARACTERISTICS (continued) TA = 25°C, VCC = 12 V, RL = 8 Ω (unless otherwise noted) PARAMETER rDS(on) Drain-source on-state resistance TEST CONDITIONS VCC = 12 V, IO = 500 mA, TJ = 25°C GAIN1 = 0.8 V G Gain GAIN1 = 2 V MIN TYP MAX High Side 370 Low side 370 Total 780 950 UNIT mΩ GAIN0 = 0.8 V 19 20 21 GAIN0 = 2 V 25 26 27 GAIN0 = 0.
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TPA3101D2 www.ti.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com TERMINAL FUNCTIONS (continued) TERMINAL NAME QFN NO. HTQFP NO. I/O ROUTP 41, 42 41, 42 O PVCCR 34, 35 34, 35 DESCRIPTION Class-D 1/2-H-bridge positive output for right channel. Power supply for right channel H-bridge, not connected to PVCCL or AVCC. BSRP 43 43 AGND 4, 17 4, 17 ROSC 14 14 I/O MSTR/SLV 10 10 I SYNC 11 11 I/O Clock input/output for synchronizing multiple class-D devices.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 FUNCTIONAL BLOCK DIAGRAM PVCCR PVCCR VCLAMPR PVCCR VBYP BSRN VBYP AVCC AVCC Gain RINN Gate Drive Gain Control RINP ROUTN VClamp Gen PWM Logic PVCCR VBYP GAIN0 GAIN1 BSRP Gain Control Gate Drive To Gain Adj.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 10 10 VCC = 12 V, 2 PO = 2.5 W 1 0.5 0.2 0.1 PO = 5 W 0.05 0.02 PO = 1 W 0.01 VCC = 18 V, 5 RL = 8 W, Gain = 20 dB THD - Total Harmonic Distortion - % THD - Total Harmonic Distortion - % 5 0.005 RL = 8 W, Gain = 20 dB 2 1 0.5 0.2 PO = 10 W 0.1 PO = 2.5 W 0.05 0.02 0.01 PO = 1 W 0.005 0.003 20 0.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT POWER TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT POWER 10 10 5 RL = 8 W, Gain = 32 dB THD - Total Harmonic Distortion - % THD - Total Harmonic Distortion - % 5 VCC = 12 V, 2 1 0.5 1 kHz 10 kHz 0.2 0.1 0.05 0.02 50m 100m 200m 1 2 5 PO - Output Power - W 2 1 0.5 1 kHz 10 kHz 0.2 0.1 0.05 20 Hz 0.01 10m 10 20 40 A. Power above 10 W may require increased heatsinking. Figure 5.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com CLOSED LOOP RESPONSE vs FREQUENCY CLOSED LOOP RESPONSE vs FREQUENCY Gain − dB 30 25 150 35 100 30 50 25 Phase 0 20 15 VCC = 12 V 10 RL = 8 W VI = 0.1 Vrms -50 -100 CI = 10 mF Gain = 32 dB RC filter = 100 W, 10 nF 5 0 10 100 1k 10 k 200 100 50 Phase 0 20 15 VCC = 24 V -50 10 RL = 8 W VI = 0.1 Vrms -100 -150 5 -200 100 k 0 CI = 10 mF Gain = 32 dB RC filter = 100 W, 10 nF 10 100 f - Frequency - Hz 32.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 EFFICIENCY vs OUTPUT POWER EFFICIENCY vs OUTPUT POWER 100 100 VCC = 12 V 90 90 VCC = 12 V 80 80 70 VCC = 18 V Efficiency − % Efficiency − % 70 60 50 VCC = 24 V 40 60 50 40 30 30 RL = 8 W Gain = 20 dB 20 20 RL = 4 Ω Gain = 32 dB 10 10 0 0 0 2 4 6 8 10 12 14 16 18 0 20 2 6 8 Figure 14. SUPPLY CURRENT vs TOTAL OUTPUT POWER SUPPLY CURRENT vs TOTAL OUTPUT POWER 12 14 15 2.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com CROSSTALK vs FREQUENCY CROSSTALK vs FREQUENCY -40 −80 −60 Crosstalk − dB Crosstalk − dB −60 -40 VCC = 12 V RL = 8 Ω Gain = 20 dB VO = 1 Vrms R to L −100 VCC = 24 V RL = 8 Ω Gain = 20 dB VO = 1 Vrms L to R −80 −100 R to L L to R −120 −140 20 −120 100 1k −140 20 10k 20k 100 f − Frequency − Hz Figure 17. Figure 18.
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TPA3101D2 www.ti.
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TPA3101D2 www.ti.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 Fault Output Shutdown and Mute Control www.ti.
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TPA3101D2 www.ti.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 CLASS-D OPERATION This section focuses on the class-D operation of the TPA3101D2. Traditional Class-D Modulation Scheme The traditional class-D modulation scheme, which is used in the TPA032D0x family, has a differential output where each output is 180 degrees out of phase and changes from ground to the supply voltage, VCC.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com OUTP OUTN Differential Voltage Across Load Output = 0 V +12 V 0V -12 V Current OUTP OUTN Differential Voltage Across Load Output > 0 V +12 V 0V -12 V Current Figure 26.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 Most applications require a ferrite bead filter. The ferrite filter reduces EMI around 1 MHz and higher (FCC and CE only test radiated emissions greater than 30 MHz). When selecting a ferrite bead, choose one with high impedance at high frequencies, but low impedance at low frequencies. Use an LC output filter if there are low frequency (<1 MHz) EMI-sensitive circuits and/or there are long wires from the amplifier to the speaker.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com Using the LC filter in Figure 27, the TPA3101D2 EVM passed the FCC Part 15 Class B radiated emissions test with 21 inch speaker wires. Quasi-peak measurements were taken for the 4 standard test configurations, and the TPA3101D2 EVM passed with at least 14-dB margin. A plot of the peak measurement for the horizontal rear configuration is shown in Figure 30.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 Adaptive Dynamic Range Control TPA3101D2 Closest Competitor V - Voltage = 1 V/div V - Voltage = 10 V/div TPA3101D2 Closest Competitor t - Time = 100 ms/div t - Time = 20 ms/div Figure 31. 1-kHz Sine Output at 10% THD+N Figure 32.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com Zf Ci IN Input Signal Zi The -3-dB frequency can be calculated using Equation 1. Use the ZI values given in Table 2. f = 1 2p Zi Ci (1) INPUT CAPACITOR, CI In the typical application, an input capacitor (CI) is required to allow the amplifier to bias the input signal to the proper dc level for optimum operation.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 IC Output Snubbers In Figure 33, the 470-pF capacitors in series with 20-Ω resistors from the outputs of the TPA3101D2 IC to ground are switching snubbers. They linearize switching transitions and reduce overshoot and ringing. By doing so they improve THD+N at lower power levels and they improve EMC by 2 to 4 dB at middle frequencies. They increase quiescent current by 3 to 12 mA depending on power supply voltage.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com A secondary function of the VBYP capacitor is to filter high-frequency noise on the internal 1.25-V bias generator. A value of at least 0.47µF is recommended for the VBYP capacitor. For the best power-up and shutdown pop performance, the VBYP capacitor should be greater than or equal to the input capacitors.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 TPA3101D2 External GPIO Control MUTE FAULT Figure 34.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com MSTR/SLV and SYNC operation The MSTR/SLV and SYNC terminals can be used to synchronize the frequency of the class-D output switching. When the MSTR/SLV terminal is high, the output switching frequency is determined by the selection of the resistor connected to the ROSC terminal (see ROSC Resistor Selection).
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 SHORT-CIRCUIT PROTECTION AND AUTOMATIC RECOVERY FEATURE The TPA3101D2 has short-circuit protection circuitry on the outputs that prevents damage to the device during output-to-output shorts, output-to-GND shorts, and output-to-VCC shorts. When a short circuit is detected on the outputs, the part immediately disables the output drive. This is a latched fault and must be reset by cycling the voltage on the SHUTDOWN pin or MUTE pin.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com BASIC MEASUREMENT SYSTEM This application note focuses on methods that use the basic equipment listed below: • Audio analyzer or spectrum analyzer • Digital multimeter (DMM) • Oscilloscope • Twisted-pair wires • Signal generator • Power resistor(s) • Linear regulated power supply • Filter components • EVM or other complete audio circuit Figure 35 shows the block diagrams of basic measurement systems for class-AB and class-D amplifiers.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 Power Supply Signal Generator APA RL Analyzer 20 Hz - 20 kHz (a) Basic Class-AB Power Supply Low-Pass RC Filter Signal Generator Class-D APA RL (See note A) Low-Pass RC Filter Analyzer 20 Hz - 20 kHz (b) Filter-Free and Traditional Class-D A. For efficiency measurements with filter-free Class-D, RL should be an inductive load like a speaker. Figure 35.
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com Evaluation Module Audio Power Amplifier Generator Analyzer Low-Pass RC Filter CIN RGEN VGEN RIN ROUT RIN ROUT CIN RGEN Twisted-Pair Wire RL Low-Pass RC Filter RANA CANA RANA CANA Twisted-Pair Wire Figure 36. Differential Input, BTL Output Measurement Circuit The generator should have balanced outputs, and the signal should be balanced for best results.
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TPA3101D2 www.ti.com SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 Load CFILT VL= VIN RL AP Analyzer Input RC Low-Pass Filters RFILT CANA RANA CANA RANA VOUT RFILT CFILT To APA GND Figure 37. Measurement Low-Pass Filter Derivation Circuit-Class-D APAs The transfer function for this circuit is shown in Equation 5 where wO = REQCEQ, REQ = RFILT || RANA and CEQ = (CFILT + CANA).
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TPA3101D2 SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007 www.ti.com REVISION HISTORY Changes from Revision B (September 2007) to Revision C • 32 Page Replaced the TYPICAL DISSIPATION RATINGS table with the Thermal Information Table ..............................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com (4) 24-Jan-2013 Only one of markings shown within the brackets will appear on the physical device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Mar-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPA3101D2PHPR HTQFP PHP 48 1000 330.0 16.4 9.6 9.6 1.5 12.0 16.0 Q2 TPA3101D2RGZT VQFN RGZ 48 250 180.0 16.4 7.3 7.3 1.5 12.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Mar-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPA3101D2PHPR TPA3101D2RGZT HTQFP PHP 48 1000 367.0 367.0 38.0 VQFN RGZ 48 250 210.0 185.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.