Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Audio amplifier 1-channel (mono) Class D QFN 20 (4x4)

FEATURES

DESCRIPTION

APPLICATIONS

IN–

IN+

AGND

PGND

VOUT+

VOUT–

V OUT

V IN

10 Fm

22 Fm

1 Fm

ToBattery

Differential

Input

V FB

SDb

SDd

ShutDownBoost

ShutDownClassD

GAIN

Gain(V /Float/GND)

2.2to6.2 Hm

GPIO

1 Fm

50kΩ

453kΩ

TPA2014D1

www.ti.com

............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008

1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED

BOOST CONVERTER

• High Efficiency Integrated Boost Converter

(Over 90% Efficiency)

The TPA2014D1 is a high efficiency Class-D audio

power amplifier with an integrated boost converter. It

• 1.5-W into an 8- Ω Load from a 3.6-V Supply

drives up to 1.5 W (10% THD+N) into a 8 Ω speaker

• Operates from 2.5 V to 5.5 V

from a 3.6 V supply. With 85% typical efficiency, the

• Efficient Class-D Prolongs Battery Life

TPA2014D1 helps extend battery life when playing

• Independent Shutdown for Boost Converter audio.

and Class-D Amplifier

The built-in boost converter generates a higher

• Differential Inputs Reduce RF Common Noise

voltage rail for the Class-D amplifier. This provides a

louder audio output than a stand-alone amplifier

• Built-in INPUT Low Pass Filter Decreases RF

connected directly to the battery. It also maintains a

and Out of Band Noise Sensitivity

consistent loudness, regardless of battery voltage.

• Synchronized Boost and Class-D Eliminates

Additionally, the boost converter can be used to

Beat Frequencies

supply external devices.

• Thermal and Short-Circuit Protection

The TPA2014D1 has an integrated low pass filter to

• Available in 16-ball WCSP and 20-Lead QFN

improve RF rejection and reduce out-of-band noise,

Packages

increasing the signal to noise ratio (SNR). A built-in

PLL synchronizes the boost converter and Class-D

• 3 Selectable Gain Settings of 2 V/V, 6 V/V, and

switching frequencies, thus eliminating beat

10 V/V

frequencies and improving audio quality. All outputs

are fully protected against shorts to ground, power

supply, and output-to-output shorts.

• Cell Phones

• PDA

• GPS

• Portable Electronics

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 (28 pages)

PAGE 1
TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER FEATURES 1 • • • • • • • • • • • DESCRIPTION High Efficiency Integrated Boost Converter (Over 90% Efficiency) 1.5-W into an 8-Ω Load from a 3.6-V Supply Operates from 2.5 V to 5.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... 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.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 Functional Block Diagram SW BG Control VCCOUT AntiRinging VDD VCCOUT Vmax Control Gate Control PGND VCCFB Regulator SDb SDd Biases, Control, and References Vref Internal Oscillator AGND VCCIN GAIN IN– IN+ PWM and Level Shifter Res.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) VDD Supply voltage VI Input voltage, Vi: SDb, SDd, IN+, IN–, VCCFB (1) Continuous total power dissipation VALUE UNIT –0.3 to 6 V –0.3 to VDD + 0.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 DC CHARACTERISTICS TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN Class-D audio power amplifier voltage supply range, VCCIN VCC ISD Shutdown quiescent current TYP 3 MAX 5.5 SDd = SDb = 0 V, VDD = 2.5 V, RL = 8 Ω 0.04 1.5 SDd = SDb = 0 V, VDD = 3.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 CLASS D AMPLIFIER AC CHARACTERISTICS TA = 25°C, VDD = 3.6V, RL = 8 Ω + 33 µH, L = 6.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS TOTAL EFFICIENCY vs OUTPUT POWER OUTPUT POWER vs SUPPLY VOLTAGE 2 100 Gain = 2 V/V, 1.8 RL = 8W + 33 mH, VCC = 5 V, 1.6 THD+N = 1% VDD = 4.2 V 90 80 VDD = 3.6 V VDD = 2.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 TYPICAL CHARACTERISTICS (continued) TOTAL SUPPLY CURRENT vs OUTPUT POWER OUTPUT POWER vs LOAD 0.5 2 0.45 1.8 0.4 VDD = 2.5 V 0.3 0.25 0.2 VDD = 4.2 V 0.15 1.4 1.2 THD = 10% 1 0.8 0.6 THD = 1% 0.1 Gain = 2 V/V, RL = 8W + 33 mH, VCC = 5 V 0.05 0.4 0.2 0 0 0 0.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY POWER SUPPLY REJECTION RATIO vs FREQUENCY 0 1 Gain = 2 V/V, RL = 8W + 33 mH, VCC = 5 V, VDD = 3.6 V PSRR - Power Supply Rejection Ratio - dB THD+N - Total Harmonic Distortion + Noise - % 10 PO = 0.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 TYPICAL CHARACTERISTICS (continued) BOOST EFFICIENCY vs SUPPLY VOLTAGE MAXIMUM CONTINUOUS OUTPUT CURRENT vs SUPPLY VOLTAGE (BOOST) 100 0.7 VCC = 5 V Load Current = -0.25 A VCC = 5 V 95 IOM - Maximum Output Current - A 0.6 90 Load Current = -0.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com APPLICATION INFORMATION FULLY DIFFERENTIAL AMPLIFIER The TPA2014D1 is a fully differential amplifier with differential inputs and outputs. The fully differential amplifier consists of a differential amplifier with common-mode feedback.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 SETTING THE BOOST VOLTAGE Use Equation 1 to determine the value of R1 for a given VCC. The maximum recommended value for VCC is 5.5 V. The typical value of the VCCFB pin is 500 mV.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com CAPACITOR SELECTION SURFACE MOUNT CAPACITORS Temperature and applied dc voltage influence the actual capacitance of high-K materials.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 TPA2014D1 CAPACITOR EQUATIONS The value of the boost capacitor is determined by the minimum value of working capacitance required for stability and the maximum voltage ripple allowed on VCC in the application. The minimum value of working capacitance is 10 µF.
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TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com RECOMMENDED INDUCTOR AND CAPACITOR VALUES BY APPLICATION Use Table 4 as a guide for determining the proper inductor and capacitor values. Table 4.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 FILTER FREE OPERATION AND FERRITE BEAD FILTERS A ferrite bead filter is often used if the design is failing radiated emissions without an LC filter and the frequency sensitive circuit is greater than 1 MHz.
PAGE 18
TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com Toshiba CRS 06 Schottky Diode R1 50 kΩ R2 453 kΩ Toko 1098AS-4R7M To Battery 22 mF 1 mF 4.7 mH 22 mF VDD SW VCCFB VCCOUT VCCIN CIN IN– Left Channel Input 1 mF VOUT+ IN+ CIN TPA2014D1 VOUT– GAIN GND = Bypass VDD = Boost Mode SDb GPIO SDd AGND PGND Figure 17.
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TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 Copper Trace Width Solder Pad Width Solder Mask Opening Solder Mask Thickness Copper Trace Thickness Figure 18. Land Pattern Dimensions Table 5.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 21
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 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. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 27-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPA2014D1RGPR Package Package Pins Type Drawing QFN RGP 20 TPA2014D1RGPT QFN RGP TPA2014D1YZHR DSBGA YZH TPA2014D1YZHR DSBGA TPA2014D1YZHT TPA2014D1YZHT SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3000 330.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 20 250 180.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 16 3000 180.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 27-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPA2014D1RGPR QFN RGP 20 3000 367.0 367.0 35.0 TPA2014D1RGPT QFN RGP 20 250 210.0 185.0 35.0 TPA2014D1YZHR DSBGA YZH 16 3000 182.0 182.0 17.0 TPA2014D1YZHR DSBGA YZH 16 3000 217.0 193.0 35.0 TPA2014D1YZHT DSBGA YZH 16 250 217.0 193.0 35.0 TPA2014D1YZHT DSBGA YZH 16 250 182.0 182.0 17.
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D: Max = 2.31 mm, Min = 2.25 mm E: Max = 2.31 mm, Min = 2.
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