Manuale d’uso / di manutenzione del prodotto TPA3008D2 del fabbricante Texas Instruments
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www.ti.com FEATURES DESCRIPTION APPLICATIONS 10 µ F 220 nF 220 nF PVCC PVCC 220 nF 220 nF PVCC PVCC 220 pF Left Differential Inputs Right Differential Inputs Shutdown/Mute Gain Control BSLP PVCCL PVC.
www.ti.com ABSOLUTE MAXIMUM RATINGS DISSIPATION RATING TABLE RECOMMENDED OPERATING CONDITIONS TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 These devices have limited built-in ESD protection.
www.ti.com AVAILABLE OPTIONS DC ELECTRICAL CHARACTERISTICS AC ELECTRICAL CHARACTERISTICS TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 T A PACKAGED DEVICE 48-PIN HTQFP (PHP) (1) -40 ° C to 85 ° C TPA3008D2PHP (1) The PHP package is available taped and reeled.
www.ti.com Biases and References TTL Input Buf fer (VCC Compl) Start-up and Protection Logic SC Detect Thermal VDDok RINP RINN Ramp Generator COSC ROSC VCCok 5-V LDO A VCC A VDD A VDD VDD and PWM Mode Logic Gain Adj. Gain Control Deglitch and PWM Mode Logic Gain Adj.
www.ti.com 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 48 47 46 45 44 43 42 41 40 39 38 37 1 2 3 4 5 6 7 8 9 10 1 1 12 BSRN PVCCR PVCCR ROUTN ROUTN PGNDR PGNDR ROUTP ROUTP .
www.ti.com TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 TERMINAL FUNCTIONS PIN NAME PIN NUMBER I/O DESCRIPTION AGND 26, 30 - Analog ground for digital/analog cells in core AV CC 33 - High-voltage analog power supply, not connected internally to PVCCR or PVCCL 5-V Regulated output for use by internal cells and GAIN0, GAIN1 pins only.
www.ti.com TYPICAL CHARACTERISTICS 0.01 20 20 k 100 1 k 10 k THD+N −T otal Harmonic Distortion + Noise − % V CC = 18 V , R L = 16 Gain = 21.6 dB f − Frequency − Hz 10 0.1 P O = 2.5 W P O = 0.5 W P O = 1 W 1 0.005 10 0.01 0.1 20 20 k 100 1 k 10 k P O = 2.
www.ti.com 0.005 10 0.01 0.1 20 20 k 100 1 k 10 k P O = 5 W THD+N −T otal Harmonic Distortion + Noise − % V CC = 18 V , R L = 8 , Gain = 21.6 dB f − Frequency − Hz P O = 1 W P O = 2.5 W 1 0.01 0.1 10 20 20 k 100 1 k 10 k THD+N −T otal Harmonic Distortion + Noise − % V CC = 12 V , R L = 8 Gain = 21.
www.ti.com 28 24 20 16 10 100 1k Gain − dB 32 36 f − Frequency − Hz 40 10k 12 8 4 0 80k V CC = 12 V , R L = 8 Ω, Gain = 32 dB 33 kHz, RC LPF Gain Phase Phase − 50 0 100 −150 −100 −.
www.ti.com 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 Efficiency − % 16 8 P O − T otal Output Power − W 1 1 12 V CC = 12 V , LC Filter , Resistive Load, Stereo Operation 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 2 4 6 8 10 12 P O − T otal Output Power − W 1.
www.ti.com −70 −60 −50 −40 −30 −20 −10 0 100 1 k 10 k 20 V CC = 12 V , Gain = 15.6 dB, R L = 8 Output Referred f − Frequency − Hz CMRR − Common-Mode Rejection Ratio − dB 20 k TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 COMMON-MODE REJECTION RATIO vs FREQUENCY Figure 15.
www.ti.com APPLICATION INFORMATION 220 nF 220 nF PVCC PVCC 220 nF 220 nF PVCC PVCC 220 pF Right Differential Inputs Shutdown/Mute BSLP PVCCL PVCCL LOUTP LOUTP PGNDL PGNDL LOUTN LOUTN PVCCL PVCCL BSLN .
www.ti.com CLASS-D OPERATION Traditional Class-D Modulation Scheme 0 V −12 V +12 V Current OUTP Differential V oltage Across Load OUTN TPA3008D2 Modulation Scheme TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 APPLICATION INFORMATION (continued) This section focuses on the class-D operation of the TPA3008D2.
www.ti.com 0 V −12 V +12 V Current OUTP OUTN Differential V oltage Across Load 0 V −12 V +12 V Current OUTP OUTN Differential V oltage Across Load Output = 0 V Output > 0 V Efficiency: LC Filte.
www.ti.com Effects of Applying a Square Wave Into a Speaker Efficiency (t heoretical, %) R L R L r ds(on) 100% 8 (8 1.3) 100% 86% (1) P (total) P O Efficiency 8.5 W 0.86 9.88 W (2) Other losses P (tot al) (measured) P (total) (theoretical) 10.
www.ti.com 0.1 µ F 0.1 µ F 0.47 µ F 33 µ H 33 µ H OUTP OUTN L 1 L 2 C 1 C 2 C 3 1 nF Ferrite Chip Bead OUTP OUTN Ferrite Chip Bead 1 nF Gain setting via GAIN0 and GAIN1 inputs INPUT RESISTANCE TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 APPLICATION INFORMATION (continued) Figure 19.
www.ti.com C i IN Z i Z f Inpu t Signal f 1 2 Z i C i (5) INPUT CAPACITOR, C I f c 1 2 Z i C i −3 dB f c (6) C i 1 2 Z i f c (7) Power Supply Decoupling,C S TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 The -3-dB frequency can be calculated using Equation 5.
www.ti.com BSN and BSP Capacitors VCLAMP Capacitors Internal Regulated 5-V Supply (AV DD ) Differential Input SHUTDOWN OPERATION USING LOW-ESR CAPACITORS TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 The full H-bridge output stages use only NMOS transistors.
www.ti.com SHORT-CIRCUIT PROTECTION AND AUTOMATIC RECOVERY FEATURE THERMAL PROTECTION PRINTED-CIRCUIT BOARD (PCB) LAYOUT TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 The TPA3008D2 has short-c.
www.ti.com BASIC MEASUREMENT SYSTEM TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 This application note focuses on methods that use the basic equipment listed below: • Audio analyzer or spec.
www.ti.com Analyzer 20 Hz − 20 kHz (a) Basic Class−AB AP A Signal Generator Power Supply Analyzer 20 Hz − 20 kHz R L (b) Filter-Free and T raditional Class-D Class-D AP A Signal Generator Power .
www.ti.com C IN Audio Power Amplifier Generator Low−Pass RC Filter C IN R GEN R GEN R IN R IN V GEN R OUT R OUT Analyzer R ANA R ANA C ANA Low−Pass RC Filter R L C ANA T wisted-Pair Wire Evaluation Module T wisted-Pair Wire CLASS-D RC LOW-PASS FILTER TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 Figure 22.
www.ti.com R FIL T R L R FIL T C FIL T V L = V IN V OUT R ANA C ANA R ANA C ANA C FIL T T o AP A GND AP Analyzer Input RC Low-Pass Filters Load V OUT V IN R ANA R ANA R FILT 1 .
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PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3) TPA3008D2PHP ACTIVE HTQFP PHP 48 250 Green (RoHS & n.
TAPE AND REEL BOX INFORMATION Device Package Pins Site Reel Diameter (mm) Reel Width (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W (mm) Pin1 Quadrant TPA3008D2PHPR PHP 48 SITE 60 330 16 9.
Device Package Pins Site Length (mm) Width (mm) Height (mm) TPA3008D2PHPR PHP 48 SITE 60 346.0 346.0 33.0 PACKAGE MATERIALS INFORMATION www.ti.com 5-Oct-2007 Pack Materials-Page 2.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Texas Instruments TPA3008D2 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Texas Instruments TPA3008D2 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Texas Instruments TPA3008D2 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Texas Instruments TPA3008D2 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Texas Instruments TPA3008D2, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Texas Instruments TPA3008D2.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Texas Instruments TPA3008D2. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Texas Instruments TPA3008D2 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
