TEXAS INSTRUMENTS TPA3001D1 Technical data

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0 4 8 12 16 20

PO − Output Power − W

EFFICIENCY

OUTPUT POWER

4 Ω

8 Ω

Efficiency − %

3.6 4 5 6 7 8 9 10

VCC = 18 V

VCC = 15 V

VCC = 12 V

TA = 25°C, 10% THD Maximum

RL − Load Impedance − Ω

− Output Power − W

MAXIMUM OUTPUT POWER

LOAD IMPEDANCE

VCC = 18 V

20-W MONO CLASS-D AUDIO POWER AMPLIFIER

FEATURES DESCRIPTION

• 20 W Into 8- Ω Load From 18-V Supply (10%

THD+N)

• Short Circuit Protection (Short to V

to GND, Short Between Outputs)

• Third-Generation Modulation Technique:

– Replaces Large LC Filter With Small,

Low-Cost Ferrite Bead Filter in Most

Applications – Improved Efficiency – Improved SNR

• Low Supply Current: 8 mA Typ at 12 V

• Shutdown Control: < 1 µ A Typ

• Space-Saving, Thermally-Enhanced

PowerPAD™ Packaging

APPLICATIONS

• LCD Monitors/TVs

• Hands-Free Car Kits

• Powered Speakers

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

The TPA3001D1 (sometimes referred to as TPA3001) is a 20-W mono bridge-tied load (BTL)

, Short

class-D audio power amplifier (class-D amp) with high efficiency, eliminating the need for heat sinks. The TPA3001D1 (TPA3001) can drive 4- Ω or 8- Ω speakers with only a ferrite bead filter required to reduce EMI.

The gain of the amplifier is controlled by two input terminals, GAIN1 and GAIN0. This allows the amplifier to be configured for a gain of 12, 18, 23.6, and 36 dB. The differential input stage provides high common mode rejection and improved power supply rejection.

The amplifier also includes depop circuitry to reduce the amount of pop at power-up and when cycling SHUTDOWN.

The TPA3001D1 (TPA3001) is available in the 24-pin thermally enhanced TSSOP package (PWP) which eliminates the need for an external heat sink.

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.

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.

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1 2 3 4 5 6 7 8 9 10 11 12

24 23 22 21 20 19 18 17 16 15 14 13

INN

INP GAIN0 GAIN1

SHUTDOWN

PGND

VCLAMP

BSN

OUTN OUTN PGND

VREF BYPASS COSC ROSC AGND AGND BSP PV

OUTP OUTP PGND

PWP PACKAGE

(TOP VIEW)

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

(1) For the most current package and ordering information, see the

(2) The PWP package is available taped and reeled. To order a taped

AVAILABLE OPTIONS

–40 ° C to 85 ° C TPA3001D1PWP

Package Option Addendum at the end of this document, or see the TI website at www.ti.com.

and reeled part, add the suffix R to the part number (e.g., TPA3001D1PWPR).

PACKAGED DEVICES

(1)

TSSOP (PWP)

(2)

Terminal Functions

TERMINAL

NAME NO.

AGND 18, 19 Analog ground terminal BSN 8 I

BSP 17 I BYPASS 22 I Connect 1- µ F capacitor to ground for BYPASS voltage filtering

COSC 21 I Connect a 220-pF capacitor to ground to set oscillation frequency GAIN0 3 I Bit 0 of gain control (see Table 1 for gain settings) GAIN1 4 I Bit 1 of gain control (see Table 1 for gain settings) INN 1 I Negative differential input INP 2 I Positive differential input OUTN 10, 11 O Negative BTL output, connect Schottky diode from PGND to OUTN for short-circuit protection OUTP 14, 15 O Positive BTL output, connect Schottky diode from PGND to OUTP for short-circuit protection PGND 6, 12, 13 Power ground PV

ROSC 20 I Connect 120 k Ω resistor to ground to set oscillation frequency SHUTDOWN 5 I Shutdown terminal (negative logic), TTL compatible, 21-V compliant V

VCLAMP 7 O Connect 1- µ F capacitor to ground to provide reference voltage for H-bridge gates VREF 23 O 5-V internal regulator for control circuitry (connect a 0.1- µ F to 1- µ F capacitor to ground)

Thermal Pad - -

9, 16 I High-voltage power supply (for output stages)

24 I Analog high-voltage power supply

I/O DESCRIPTION

Bootstrap terminal for high-side gate drive of negative BTL output (connect a 0.22- µ F capacitor with a 51- Ω resistor in series from OUTN to BSN)

Bootstrap terminal for high-side gate drive of positive BTL output (connect a 0.22- µ F capacitor with a 51- Ω resistor in series from OUTP to BSP)

Connect to AGND and PGND - should be star point for both grounds. Internal resistive connection to AGND. Thermal vias on the PCB should connect this pad to a large copper area on an internal or bottom layer for the best thermal performance. The PAD must be soldered to the PCB for

mechanical reliability.

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FUNCTIONAL BLOCK DIAGRAM

Gate

Drive

Gate

Drive

_ +

Gain

Adjust

Gain

Adjust

Start-Up

Protection

Logic

Short-Circuit

Detect

Thermal VCC OK

Ramp Generator

Biases

and

References

Gain

AGNDVREF

VREF

INN

OUTN

PGND

OUTP

PGND

INP

SHUTDOWN

GAIN1 GAIN0

COSC ROSC

BYPASS

_ +

Deglitch

Logic

Deglitch

Logic

BSP

BSN

Clamp

Reference

VCLAMP

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range (unless otherwise noted)

Supply voltage: V Load impedance, R

CC,

SHUTDOWN -0.3 V to V

Input voltage GAIN0, GAIN1 -0.3 V to 5.5 V

INN, INP -0.3 V to 7 V Continuous total power dissipation See Dissipation Rating Table Operating free-air temperature range, T Operating junction temperature range, T Storage temperature range, T Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 ° C

(1) 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.

stg

DISSIPATION RATING TABLE

PACKAGE TA≤ 25 ° C DERATING FACTOR TA= 70 ° C TA= 85 ° C

PWP 4.16 W 33.33 mW/ ° C

(1) The PowerPAD must be soldered to a thermal land on the printed circuit board. Please refer to the PowerPAD Thermally Enhanced

Package application note (SLMA002).

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(1)

2.67 W 2.16 W

UNIT

-0.3 V to 21 V ≥ 3.6 Ω

-40 ° C to 85 ° C

-40 ° C to 150 ° C

-65 ° C to 150 ° C

+ 0.3 V

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TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

RECOMMENDED OPERATING CONDITIONS

MIN MAX UNIT

Supply voltage, V Load impedance, R High-level input voltage, V Low-level input voltage, V Operating free-air temperature, T

CC,

(1) The TPA3001D1 must not be used with any speaker or load (including speaker with output filter) that could vary below 3.6 Ω over the

audio frequency band.

ELECTRICAL CHARACTERISTICS

TA= 25 ° C, PV

| mV

PSRR Power supply rejection ratio PV |IIH| High-level input current PV |IIL| Low-level input current PV

CC(SD)

ds(on)

G Gain

= V

= 12 V (unless otherwise noted)

PARAMETERS TEST CONDITIONS MIN TYP MAX UNIT

Output offset voltage (measured differentially)

VI= 0 V, AV= 12 dB, 18, 23.6 dB 50 VI= 0 V, AV= 36 dB 100

SHUTDOWN = 2.0 V, No load 8 15 mA

Supply current

SHUTDOWN = VCC, V

8 Ω Supply current, shutdown mode SHUTDOWN = 0.8 V 1 2 µ A Switching frequency R

OSC

Output transistor on resistance (total) IO= 1 A, TJ= 25 ° C 0.2 0.3 0.7 Ω

GAIN1 = 0.8 V, GAIN0 = 0.8 V 10.9 12 12.8 dB

GAIN1 = 0.8 V, GAIN0 = 2 V 17.1 18 18.5 dB

GAIN1 = 2 V, GAIN0 = 0.8 V 23 23.6 24.3 dB

GAIN1 = 2 V, GAIN0 = 2 V 33.9 36 36.5 dB

(1)

RL≥ 3.6

8 18 V

3.6 Ω GAIN0, GAIN1, SHUTDOWN 2 V GAIN0, GAIN1, SHUTDOWN 0.8 V

-40 85 ° C

= 11.5 V to 12.5 V -73 dB

= 12 V, VI= PV

= 12 V, VI= 0 V 1 µ A

= 120 k Ω , C

= 18 V, PO= 20 W, RL=

= 220 pF 250 kHz

OSC

1.3 A

1 µ A

OPERATING CHARACTERISTICS

= V

THD + N Total harmonic distortion plus noise PO= 10 W, RL= 4 Ω , f = 20 Hz to 20 kHz 0.2% B

SVR

SNR Signal-to-noise ratio PO= 10 W, RL= 4 Ω 95 dB

= 12 V, TA= 25 ° C (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Continuous output power at 10% THD+N

Continuous output power at 1% THD+N

f = 1 kHz, RL= 4 Ω 12.8 f = 1 kHz, RL= 8 Ω 9 f = 1 kHz, RL= 4 Ω 10.3 f = 1 kHz, RL= 8 Ω 7.2

Maximum output power bandwidth THD = 1% 20 kHz Supply ripple rejection ratio f = 1 kHz, C

(BYPASS)

filter used, Gain = 12 dB

Noise output voltage

(BYPASS)

filter, Gain = 12 dB

(BYPASS)

= 1 µ F, f = 20 Hz to 22 kHz,No weighting

= 1 µ F, f = 20 Hz to 22 kHz,A-weighted

= 1 µ F -70 dB

86 µ V(rms)

-81 dBV 66 µ V(rms)

-84 dBV

Input impedance See Table 1, page 21 >23 k Ω

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TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

OPERATING CHARACTERISTICS

= V

THD + N Total harmonic distortion plus noise

SVR

SNR Signal-to-noise ratio PO= 15 W, RL= 8 Ω 102 dB

= 18 V, TA= 25 ° C (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Output power at 10% THD+N

Output power at 1% THD+N

f = 1 kHz, RL= 4 Ω 12.8 f = 1 kHz, RL= 8 Ω 20 f = 1 kHz, RL= 4 Ω 10.3 f = 1 kHz, RL= 8 Ω 16 PO= 15 W, RL= 8 Ω , f = 20 Hz to 20 kHz 1%

PO= 2 W, RL= 8 Ω , f = 20 Hz to 20 kHz 0.3% Maximum output power bandwidth THD = 1% 20 kHz Supply ripple rejection ratio f = 1 kHz, C

(BYPASS)

filter used, Gain = 12 dB Noise output voltage

(BYPASS)

filter, Gain = 12 dB

= 1 µ F, f = 20 Hz to 20 kHz, No weighting

= 1 µ F, f = 20 Hz to 22 kHz, A-weighted

= 1 µ F -70 dB

BYPASS

86 µ V(rms)

-81 dBV 66 µ V(rms) 84 dBV

Input impedance See Table 1, page 21 >23 k Ω

TYPICAL CHARACTERISTICS

Table of Graphs

Efficiency vs Output power 1

CC(SD)

THD+N Total harmonic distortion + noise

SVR

CMRR Common-mode rejection ratio 28 V

Output power vs Load Impedance 2, 3, 4 Supply current 5 Shutdown current 6

vs Supply voltage

vs Output power

7, 8, 9, 10, 11, 12, 13, 14, 15,

vs Frequency 19, 20, 21, 22, 23, 24, 25 Supply voltage rejection ratio 26 Gain and phase vs Frequency 27

Input offset voltage vs Common-mode input voltage 29

FIGURE

16, 17, 18

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0 2 4 6 8 10 12 14

PO − Output Power − W

4 Ω

8 Ω

Efficiency − %

VCC = 12 V

3.6 4 5 6 7 8 9 10

VCC = 18 V

VCC = 15 V

VCC = 12 V

TA = 25°C, 10% THD Maximum

Load Impedance − Ω

− Output Power − WP O

3.6 4 5 6 7 8 9 10

VCC = 18 V

VCC = 15 V

VCC = 12 V

− Maximum Output Power − WP O

ZL − Load Impedance − Ω

TA = 45°C

3.6 4 5 6 7 8 9 10

VCC = 18 V

VCC = 15 V

VCC = 12 V

− Maximum Output Power − WP O

ZL − Load Impedance − Ω

TA = 60°C

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

EFFICIENCY MAXIMUM OUPUT POWER

vs vs

OUTPUT POWER LOAD IMPEDANCE

Figure 1. Figure 2.

MAXIMUM OUPUT POWER MAXIMUM OUTPUT POWER

LOAD IMPEDANCE LOAD IMPEDANCE

Figure 3. Figure 4.

vs vs

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8 10 12 14 16 18

VCC − Supply Voltage − V

− Supply Current − mA

VCC − Supply Voltage − V

8 10 12 14 16 18

CC(SD)

− Shutdown Current − µA

SHUTDOWN = 0.8 V

0.001

0.01

0.1

0 5 10 15 20

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 18 V , RL = 8 Ω, Gain = 12 dB

0.01

0.1

0 5 10 15 20

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 18 V , RL = 8 Ω, Gain = 36 dB

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

SUPPLY CURRENT SHUTDOWN CURRENT

vs vs

SUPPLY VOLTAGE SUPPLY VOLTAGE

Figure 5. Figure 6.

TOTAL HARMONIC DISTORTION PLUS NOISE TOTAL HARMONIC DISTORTION PLUS NOISE

vs vs

OUTPUT POWER OUTPUT POWER

Figure 7. Figure 8.

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0.01

0.1

0 5 10 15 20

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 15 V , RL = 8 Ω, Gain = 36 dB

0.001

0.01

0.1

0 5 10 15 20

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 15 V , RL = 8 Ω, Gain = 12 dB

0.01

0.1

0 5 10

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 15 V , RL = 4 Ω, Gain = 12 dB

0.01

0.1

0 5 10

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 15 V , RL = 4 Ω, Gain = 36 dB

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

TOTAL HARMONIC DISTORTION PLUS NOISE TOTAL HARMONIC DISTORTION PLUS NOISE

vs vs

OUTPUT POWER OUTPUT POWER

Figure 9. Figure 10.

TOTAL HARMONIC DISTORTION PLUS NOISE TOTAL HARMONIC DISTORTION PLUS NOISE

vs vs

OUTPUT POWER OUTPUT POWER

Figure 11. Figure 12.

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0.01

0.1

0 5 10 15

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 12 V , RL = 8 Ω, Gain = 12 dB

0.001

0.01

0.1

0 5 10 15

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 12 V , RL = 8 Ω, Gain = 36 dB

0.001

0.01

0.1

0 5 10

1 kHz

20 Hz

20 kHz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 12 V , RL = 4 Ω, Gain = 12 dB

0.01

0.1

0 5 10

1 kHz

20 kHz

20 Hz

THD+N − Total Harmonic Distortion Plus Noise − %

PO − Output Power − W

VCC = 12 V , RL = 4 Ω, Gain = 36 dB

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

TOTAL HARMONIC DISTORTION PLUS NOISE TOTAL HARMONIC DISTORTION PLUS NOISE

vs vs

OUTPUT POWER OUTPUT POWER

Figure 13. Figure 14.

TOTAL HARMONIC DISTORTION PLUS NOISE TOTAL HARMONIC DISTORTION PLUS NOISE

vs vs

OUTPUT POWER OUTPUT POWER

Figure 15. Figure 16.

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+ 21 hidden pages

TEXAS INSTRUMENTS TPA3001D1 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual

FEATURES DESCRIPTION

APPLICATIONS

FUNCTIONAL BLOCK DIAGRAM

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

OPERATING CHARACTERISTICS

OPERATING CHARACTERISTICS

TYPICAL CHARACTERISTICS

Table of Graphs