Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Audio amplifier 1-channel (mono) Class D MSOP 8 PowerPad

FEATURES

APPLICATIONS

DESCRIPTION

APPLICATION CIRCUIT

IN–

IN+

PWM H–

Bridge

O+

O–

Internal

Oscillator

To Battery

GND

Bias

Circuitry

–

Differential

Input

TPA2005D1

SHUTDOWN

Actual Solution Size

2.5 mm

6 mm

(MicroStar Junior BGA)

TPA2005D1

www.ti.com

............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008

1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER

BGA Package (ZQY)

• 1.4 W Into 8 Ω From a 5 V Supply at – 3 mm x 5 mm MSOP PowerPAD™ Package

THD = 10% (Typ) (DGN)

• Maximum Battery Life and Minimum Heat – TPA2010D1 Available in 1,45 mm × 1,45 mm

WCSP (YZF)

– Efficiency With an 8- Ω Speaker:

• Use TPA2006D1 for 1.8 V Logic Compatibility

– 84% at 400 mW

on Shutdown Pin

– 79% at 100 mW

– 2.8-mA Quiescent Current

– 0.5- µ A Shutdown Current

• Ideal for Wireless or Cellular Handsets and

• Capable of Driving an

PDAs

8- Ω Speaker (2.5 V ≤ V

≤ 5.5 V) and a

4- Ω Speaker (2.5 V ≤ V

≤ 4.2 V)

• Only Three External Components

The TPA2005D1 is a 1.4-W high efficiency filter-free

class-D audio power amplifier in a MicroStar Junior™

– Optimized PWM Output Stage Eliminates

BGA, QFN, or MSOP package that requires only

LC Output Filter

three external components.

– Internally Generated 250-kHz Switching

Features like 84% efficiency, -71-dB PSRR at 217

Frequency Eliminates Capacitor and

Hz, improved RF-rectification immunity, and 15 mm

Resistor

total PCB area make the TPA2005D1 ideal for

– Improved PSRR (-71 dB at 217 Hz) and

cellular handsets. A fast start-up time of 9 ms with

Wide Supply Voltage (2.5 V to 5.5 V)

minimal pop makes the TPA2005D1 ideal for PDA

Eliminates Need for a Voltage Regulator

applications.

– Fully Differential Design Reduces RF

In cellular handsets, the earpiece, speaker phone,

Rectification and Eliminates Bypass

and melody ringer can each be driven by the

Capacitor

TPA2005D1. The device allows independent gain

control by summing the signals from each function

– Improved CMRR Eliminates Two Input

while minimizing noise to only 48 µ V

RMS

Coupling Capacitors

• Space Saving Package

The TPA2005D1 has short-circuit and thermal

protection.

– 3 mm × 3 mm QFN package (DRB)

– 2,5 mm × 2,5 mm MicroStar Junior™

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.

2 MicroStar Junior, PowerPAD are trademarks of Texas Instruments.

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 (32 pages)

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TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER FEATURES 1 • 1.4 W Into 8 Ω From a 5 V Supply at THD = 10% (Typ) • Maximum Battery Life and Minimum Heat – Efficiency With an 8-Ω Speaker: – 84% at 400 mW – 79% at 100 mW – 2.8-mA Quiescent Current – 0.
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 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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TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 ELECTRICAL CHARACTERISTICS TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN |VOS| Output offset voltage (measured differentially) VI = 0 V, AV = 2 V/V, VDD = 2.5 V to 5.5 V PSRR Power supply rejection ratio VDD = 2.5 V to 5.
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.
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TPA2005D1 www.ti.com...............................................................................................................................................................
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com EFFICIENCY vs OUTPUT POWER EFFICIENCY vs OUTPUT POWER 90 90 RL = 32 W, 33 mH 90 80 80 RL = 8 W, 33 mH 70 Efficiency - % RL = 16 W, 33 mH 60 50 40 30 Class-AB, RL = 8 Ω 20 10 70 VDD = 2.
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TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 OUTPUT POWER vs SUPPLY VOLTAGE OUTPUT POWER vs LOAD RESISTANCE 1.4 R L = 4 W, f = 1kHz, Gain = 2 V/V 1.2 PO - Output Power - W THD+N = 10% 1 0.8 THD+N = 1% 0.6 0.4 VDD = 3.6 V VDD = 4.2 V 0.8 VDD = 5 V 0.6 0.4 VDD = 5 V 1.2 VDD = 4.2 V 1 VDD = 3.6 V 0.8 0.6 0.4 0.
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com VDD = 3.6 V CI = 2 µF RL = 16 Ω Gain = 2 V/V 5 2 1 0.5 0.2 15 mW 0.1 75 mW 0.05 0.02 0.01 200 mW 20 100 1k 20 k 10 VDD = 4.2 V, R L = 4 W, Gain = 2 V/V 5 2 500 mW 1 0.5 250 mW 1W 0.2 0.1 0.05 0.02 0.01 20 100 VDD = 3.6 V, R L = 4 W, Gain = 2V/V 5 2 1 250 mW 0.
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TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 GSM POWER SUPPLY REJECTION vs FREQUENCY 0 C1 - Duty 12.6% -50 C1 Frequency 216.7448 Hz -100 C1 - Amplitude 512 mV C1 - High 3.
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com APPLICATION INFORMATION FULLY DIFFERENTIAL AMPLIFIER The TPA2005D1 is a fully differential amplifier with differential inputs and outputs. The fully differential amplifier consists of a differential amplifier and a common-mode amplifier.
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TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 To Battery CI Internal Oscillator RI CI RI CS IN– PWM _ Differential Input VDD H– Bridge VO+ VO– + IN+ GND Bias Circuitry SHUTDOWN TPA2005D1 Filter-Free Class D Figure 33.
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com Input Resistors (RI) The input resistors (RI) set the gain of the amplifier according to equation Equation 1. Gain + 2 150 kW R I (1) Resistor matching is important in fully differential amplifiers.
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TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 SUMMING INPUT SIGNALS WITH THE TPA2005D1 Most wireless phones or PDAs need to sum signals at the audio power amplifier or just have two signal sources that need separate gain. The TPA2005D1 makes it easy to sum signals or use separate signal sources with different gains.
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com If summing a ring tone and a phone signal, the phone signal should use a differential input signal while the ring tone might be limited to a single-ended signal. Phone gain is set at gain 1 = 0.
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TPA2005D1 www.ti.com...............................................................................................................................................................
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com BOARD LAYOUT Component Location Place all the external components close to the TPA2005D1. The input resistors need to be close to the TPA2005D1 input pins so noise does not couple on the high impedance nodes between the input resistors and the input amplifier of the TPA2005D1.
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TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 ELIMINATING THE OUTPUT FILTER WITH THE TPA2005D1 This section focuses on why the user can eliminate the output filter with the TPA2005D1.
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TPA2005D1 SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com OUT+ OUT– Differential Voltage Across Load Output = 0 V +5 V 0V –5 V Current OUT+ OUT– Differential Voltage Output > 0 V +5 V 0V Across Load –5 V Current Figure 40.
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TPA2005D1 www.ti.com...............................................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 24-Jan-2013 Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) Only one of markings shown within the brackets will appear on the physical device.
PAGE 22
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 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 TPA2005D1DGNR MSOPPower PAD DGN 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPA2005D1DRBR SON DRB 8 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 TPA2005D1DRBR SON DRB 8 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPA2005D1DGNR MSOP-PowerPAD DGN 8 2500 364.0 364.0 27.0 TPA2005D1DRBR SON DRB 8 3000 367.0 367.0 35.0 TPA2005D1DRBR SON DRB 8 3000 367.0 367.0 35.0 TPA2005D1ZQYR BGA MICROSTAR JUNIOR ZQY 15 2500 338.1 338.1 20.
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MECHANICAL DATA MPBG168B – SEPTEMBER 2000 – REVISED FEBRUARY 2002 GQY (S-PBGA-N15) PLASTIC BALL GRID ARRAY 1,50 TYP 2,60 SQ 2,40 0,50 0,25 D 0,50 C 1,50 TYP B 0,25 A 1 A1 Corner 2 3 4 Bottom View 0,77 0,71 1,00 MAX Seating Plane 0,35 0,25 0,05 M 0,25 0,15 0,08 4201436/D 01/02 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice.
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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.