Texas Instruments TPA005D02EVM, TPA005D02DCA, TPA005D02DCAR Datasheet

TPA005D02

2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

NOT RECOMMENDED FOR NEW DESIGNS

D

Choose TPA2000D2 For Upgrade

D

Extremely Efficient Class-D Stereo
Operation

D

Drives L and R Channels

D

2-W BTL Output into 4 Ω

D

5-W Peak Music Power

D

Fully Specified for 5-V Operation

D

Low Quiescent Current

D

Shutdown Control

D

Thermally-Enhanced PowerP AD Surface­Mount Packaging

D

Thermal and Under-Voltage Protection

description

The TPA005D02 is a monolithic power IC stereo
audio amplifier. It operates in extremely efficient
Class-D operation, using the high switching speed
of power DMOS transistors. These transistors
replicate the analog signal through high-frequen­cy switching of the output stage. This allows the
TP A005D02 to be configured as a bridge-tied load
(BTL) amplifier.

When configured as a BTL amplifier, the
TPA005D02 is capable of delivering up to 2 W of
continuous average power into a 4-Ω load at 0.5%
THD+N from a 5-V power supply in the high fidelity
range (20 Hz to 20 kHz).

A BTL configuration eliminates the need for external coupling capacitors on the output. A chip-level shutdown
control limits total supply current to 400 µA. This makes the device ideal for battery-powered applications.

Protection circuitry increases device reliability: thermal and under-voltage shutdown, with two status feedback
terminals for use when any error condition is encountered.

The high switching frequency of the TP A005D02 allows the output filter to consist of three small capacitors and
two small inductors per channel. The high switching frequency also allows for good THD+N performance.

The TPA005D02 is offered in the thermally enhanced 48-pin PowerPAD TSSOP surface-mount package
(designator DCA).

Copyright  2000, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

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 Incorporated.

SHUTDOWN

MUTE
AGND

LINN
LINP

LCOMP

AGND

V

DD

LPV

DD

LOUTP
LOUTP

PGND

PGND
LOUTN
LOUTN

LPV

DD

NC
NC
NC

AGND

PV

DD

VCP

CP3
CP2

COSC
AGND
AGND
RINN
RINP
RCOMP
FAULT0
FAULT1
RPV

DD

ROUTP
ROUTP
PGND
PGND
ROUTN
ROUTN
RPV

DD

PV

DD

NC
NC
V2P5
LSBIAS
PGND
CP4
CP1

NC – No internal connection

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2
3
4
5
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8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
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DCA PACKAGE

(TOP VIEW)

TPA005D02

2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

Template Release Date: 7–11–94

2

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

•

10 kΩ10 kΩ

_

+

_

+

LINP

RAMP

GENERATOR

_

+

_

+

GATE

DRIVE

LPV

DD

GATE

DRIVE

LPV

DD

GATE

DRIVE

RPV

DD

GATE

DRIVE

RPV

DD

THERMAL

DETECT

VCP-UVLO

DETECT

TRIPLER

CHARGE PUMP

CONTROL and

STARTUP

LOGIC

BIAS

GENERATOR

HPV

CC

PV

DD

LINN

LCOMP

COSC

RCOMP

RINP
RINN

RPV

DD

AGND

LPV

DD

ROUTP

ROUTN

PV

DD

VCP

CP4

CP3

CP2

CP1

LOUTP

LOUTN

LSBIAS

FAULT0

FAULT1

SHUTDOWN

MUTE

V2P5

LPV

DD

RPV

DD

PGND

VCP LSBIAS

VCP LSBIAS

VCP LSBIAS

VCP LSBIAS

LSBIAS

V

DD

V

DD

PV

DD

1.5 V

10 kΩ10 kΩ

1.5 V

NOTE A: LPVDD, RPVDD, VDD, and PVDD are externally connected. AGND and PGND are externally connected.

TPA005D02

2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Terminal Functions

TERMINAL

NAME NO.

DESCRIPTION

AGND 3, 7, 20,

46, 47

Analog ground for analog sections

COSC 48 Capacitor I/O for ramp generator. Adjust the capacitor size to change the switching frequency.
CP1 25 First diode node for charge pump
CP2 24 First inverter switching node for charge pump
CP3 23 Second diode node for charge pump
CP4 26 Second inverter switching node for charge pump
FAULT0 42 Logic level fault0 output signal. Lower order bit of the two fault signals with open drain output.
FAULT1 41 Logic level fault1 output signal. Higher order bit of the two fault signals with open drain output.
LCOMP 6 Compensation capacitor terminal for left-channel Class-D amplifier
LINN 4 Class-D left-channel negative input
LINP 5 Class-D left-channel positive input
LOUTN 14, 15 Class-D amplifier left-channel negative output of H-bridge
LOUTP 10, 11 Class-D amplifier left-channel positive output of H-bridge
LPV

DD

9, 16 Class-D amplifier left-channel power supply

LSBIAS 28 Level-shifter power supply, to be tied to VCP
MUTE

2

Active-low logic-level mute input signal. When MUTE is held low, the selected amplifier is muted. When MUTE
is held high, the device operates normally. When the Class-D amplifier is muted, the low-side output transistors
are turned on, shorting the load to ground.

NC 17, 18, 19,

30, 31

No internal connection

PGND 12, 13 Power ground for left-channel H–bridge only
PGND 27 Power ground for charge pump only
PGND 36, 37 Power ground for right-channel H-bridge only
PV

DD

21, 32 VDD supply for charge-pump and internal logic circuitry
RCOMP 43 Compensation capacitor terminal for right-channel Class-D amplifier
RINN 45 Class-D right-channel negative input
RINP 44 Class-D right-channel positive input
RPV

DD

33, 40 Class-D amplifier right-channel power supply
ROUTN 34, 35 Class-D amplifier right-channel negative output of H-bridge
ROUTP 38, 39 Class-D amplifier right-channel positive output of H-bridge

SHUTDOWN

1

Active-low logic-level shutdown input signal. When SHUTDOWN is held low, the device goes into shutdown
mode. When SHUTDOWN

is held at logic high, the device operates normally.
V2P5 29 2.5-V internal reference bypass
VCP 22 Storage capacitor terminal for charge pump
V

DD

8 VDD bias supply for analog circuitry. This terminal needs to be well filtered to prevent degrading the device

performance.

TPA005D02
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Class-D amplifier faults

Table 1. Amplifier Fault Table

FAULT 0†FAULT 1

†

DESCRIPTION

1 1 No fault—The device is operating normally.
1 0 Charge pump under-voltage lock-out (VCP-UV) fault—All low-side transistors are turned on, shorting the load to

ground. Once the charge pump voltage is restored, normal operation resumes, but FAULT1 is still active. FAULT1 is
cleared by cycling MUTE

, SHUTDOWN, or the power supply.

0 0 Thermal fault—All the low-side transistors are turned on, shorting the load to ground. Once the junction temperature

drops 20°C, normal operation resumes. But the FAULTx terminals are still set and are cleared by cycling MUTE

,

SHUTDOWN

, or the power supply.

†

These logic levels assume a pull up to PVDD from the open-drain outputs.

AVAILABLE OPTIONS

PACKAGED DEVICES

T

A

TSSOP

†

(DCA)

–40°C to 125°C TPA005D02DCA

†

The DCA package is available in left-ended tape and reel. T o order
a taped and reeled part, add the suffix R to the part number (e.g.,
TPA005D02DCAR).

absolute maximum ratings over operating free-air temperature range, TC = 25°C (unless otherwise
noted)

‡

Supply voltage, V

DD

(PVDD, LPVDD, RPVDD, VDD) 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bias voltage (LSBIAS) 12 V to 20 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, VI (SHUTDOWN, MUTE, MODE) –0.3 V to 5.8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output current, IO (FAULT0, FAULT1), open drain terminated 1 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Charge pump voltage, V

CP

PVDD + 20 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous H-bridge output current 2 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pulsed H-Bridge output current, each output, I

max

(see Note 1) 5 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation, TC = 25°C 4.5 W

§

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating virtual junction temperature range, TJ –40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating case temperature range, T

C

–40°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

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.

§

Thermal shutdown activates when TJ = 125°C.

NOTE 1: Pulse duration = 10 ms, duty cycle v 2%

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

¶

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

TA = 85°C

POWER RATING

TA = 125°C

POWER RATING

DCA 5.6 W 44.8 mW/°C 3.6 W 2.9 W 1.1 W

¶

Please see the T exas Instruments document,

PowerPAD Thermally Enhanced Package Application Report

(literature number
SLMA002), for more information on the PowerP AD package. The thermal data was measured on a PCB layout based on the
information in the section entitled

T exas Instruments Recommended Board for PowerP AD

on page 33 of the before mentioned

document.

TPA005D02

2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

recommended operating conditions

MIN NOM MAX UNIT

Supply voltage, PVDD, LPVDD, RPVDD, V

DD

4.5 5.5 V

High-level input voltage, V

IH

4.25 V

Low-level input voltage, V

IL

0.75 V

Audio inputs, LINN, LINP, RINN, RINP, HPLIN, HPRIN, differential input voltage 1 V

RMS

PWM frequency 100 500 kHZ

electrical characteristics, VDD = PVDD = LPVDD = RPVDD = 5 V, RL = 4 Ω, TC = 25°C, See Figure 1
(resistive load) (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

PSRR Power supply rejection ratio VDD = PVDD = LPVDD = RPVDD = 4.9 V to 5.1 V 40 dB
I

DD

Supply current No load or output filter 25 40 mA

I

DD(MUTE)

Supply current, mute mode MUTE = 0 V 10 15 mA

I

DD(SD)

Supply current, shutdown mode SHUTDOWN = 0 V 400 2000 µA

I

IH

High-level input current VIH = 5.3 V 10 µA

I

IL

Low-level input current VIL = –0.3 V –10 µA

r

DS(on)

Total static drain-to-source
on-state resistance
(low-side plus high-side FETs)

ID = 0.5 A 620 750 mΩ

r

DS(on)

Matching 95% 99.5%

operating characteristics, VDD = PVDD = LPVDD = RPVDD = 5 V, RL = 4 Ω, TC = 25°C, See Figure 1
(unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

P

O

RMS output power, THD = 0.5%, per channel 2 W

THD+N Total harmonic distortion plus noise PO = 1 W, f = 1 kHz 0.2%

Efficiency RL = 8 Ω 80%

A

V

Gain 24 dB
Left/right channel gain matching 95%
Noise floor 60 dB
Dynamic range 70 dB
Crosstalk f = 1 kHz 55 dB
Frequency response bandwidth, post output filter, –3 dB 20 20,000 Hz

B

OM

Maximum output power bandwidth 20 kHz

thermal resistance

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

R

θJP

Thermal resistance, junction-to-pad 10 °C/W

R

θJA

Thermal resistance, junction-to-pad

†

22.3 °C/W

†

Please see the Texas Instruments document,

PowerPAD Thermally Enhanced Package Application Report

(literature number SLMA002), for

more information on the PowerPAD package. The thermal data was measured on a PCB layout based on the information in the section entitled

T exas Instruments Recommended Board for PowerPAD

on page 33 of the before mentioned document.

TPA005D02
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PARAMETER MEASUREMENT INFORMATION

LINP

LINN

LCOMP

V

DD

COSC

RCOMP

RINP

RINN

RPV

DD

AGND (see Note A)

LPV

DD

PV

DD

LSBIAS

SHUTDOWN

V2P5

PGND (see Note A)

15 µH

15 µH

0.22 µF

0.22 µF
1 µF

4 Ω

VCP

5 V

5 V

1 µF

1 µF

Balanced

Differential

Input Signal

470 pF

470 pF

470 pF

1 µF

1 µF

Balanced

Differential

Input Signal

5 V

CP1

CP2
CP3

CP4

VCP

FAULT0
FAULT1

MUTE

PV

DD

PV

DD

1 µF

LOUTP

LOUTN

15 µH

15 µH

0.22 µF

0.22 µF
1 µF

4 Ω

ROUTP

ROUTN

47 nF

47 nF

2.2 µF

28

42

1
2

9,16

5

4

6

43

48

44

45

33,40

2, 3, 7,20,46,47

12,13,27,36,37

21, 32

41

14,15

10,11

29

8

25

24
23

26
22

34,35

38,39

Figure 1. 5-V, 4-Ω Test Circuit

TPA005D02

2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

7

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Table of Graphs

FIGURE

pp

vs Switching frequency 2

IDDSupply current

vs Free-air temperature 3

p

vs Frequency 4, 5

THD+N

Total harmonic distortion plus noise

vs Output power 6, 7
Voltage amplification and phase shift vs Frequency 8
Crosstalk vs Frequency 9
Efficiency vs Output power 10

Figure 2

SUPPLY CURRENT

vs

SWITCHING FREQUENCY

0 100 200 300

400 500

Open Load

f – Switching Frequency – Hz

40

20

I

80

100

0

60

With Output Filter

Without Output Filter

DD

– Supply Current – mA

Figure 3

SUPPLY CURRENT

vs

FREE–AIR TEMPERATURE

–40 0 40 80

120 125

Open Load

TA – Free–Air Temperature – °C

20

10

40

50

0

30

With Output Filter

Without Output Filter

I

DD

– Supply Current – mA

TPA005D02
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS227C – AUGUST 1998 – REVISED MARCH 2000

8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 4

TOTAL HARMONIC DISTORTION PLUS NOISE

vs

FREQUENCY

0.05

0.02

0.2

20 100 500 2k

1

0.01

THD+N – Total Harmonic Distortion Plus Noise – %

f – Frequency – Hz

50 200 1k 5k

0.5

0.1

10k 20k

PO = 100 mW

PO = 1W

PO = 2W

RL = 4 Ω

Figure 5

TOTAL HARMONIC DISTORTION PLUS NOISE

vs

FREQUENCY

0.05

0.02

0.2

20 100 500 2k

1

0.01

THD+N – Total Harmonic Distortion Plus Noise – %

f – Frequency – Hz

50 200 1k 5k

0.5

0.1

10k 20k

RL = 8 Ω

PO = 100 mW

PO = 1W

PO = 500 mW

Figure 6

TOTAL HARMONIC DISTORTION PLUS NOISE

vs

OUTPUT POWER

0.05

0.02

0.2

0.01 0.05 0.2 1

1

0.01

THD+N – Total Harmonic Distortion Plus Noise – %

PO – Output Power – W

0.02 0.1 0.5 2

0.5

0.1

510

f = 1 kHz

f = 20 kHz

f = 20 kHz

f = 20 Hz

f = 20 Hz

10

RL = 4 Ω

2

5

Figure 7

TOTAL HARMONIC DISTORTION PLUS NOISE

vs

OUTPUT POWER

0.05

0.02

0.2

10m 50m 200m 1

1

0.01

THD+N – Total Harmonic Distortion Plus Noise – %

PO – Output Power – W

20m 100m 500m 2

0.5

0.1

510

f = 1 kHz

f = 20 kHz

f = 20 Hz

10

2

5

RL = 8 Ω