Texas Instruments TPA4860EVM, TPA4860D, TPA4860DR Datasheet
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
1-W BTL Output (5 V, 0.2 % THD+N)
D
3.3-V and 5-V Operation
D
No Output Coupling Capacitors Required
D
Shutdown Control (IDD = 0.6 µA)
D
Headphone Interface Logic
D
Uncompensated Gains of 2 to 20 (BTL
Mode)
D
Surface-Mount Packaging
D
Thermal and Short-Circuit Protection
D
High Power Supply Rejection
(56-dB at 1 kHz)
D
LM4860 Drop-In Compatible
description
The TP A4860 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average
power into an 8-Ω load at 0.4 % THD+N from a 5-V power supply in voiceband frequencies (f < 5 kHz). A BTL
configuration eliminates the need for external coupling capacitors on the output in most applications. Gain is
externally configured by means of two resistors and does not require compensation for settings of 2 to 20.
Features of this amplifier are a shutdown function for power-sensitive applications as well as headphone
interface logic that mutes the output when the speaker drive is not required. Internal thermal and short-circuit
protection increases device reliability . It also includes headphone interface logic circuitry to facilitate headphone
applications. The amplifier is available in a 16-pin SOIC surface-mount package that reduces board space and
facilitates automated assembly.
typical application circuit
Audio
Input
Bias
Control
V
DD
1 W
12
10
15
1, 4, 8, 9, 16
VO1
VO2
V
DD
2
3
7
6
5
14
13
11 GAIN
IN+
IN–
BYPASS
HP-IN1
HP-IN2
HP-SENSE
SHUTDOWN
VDD/2
C
I
R
I
R
F
V
DD
R
PU
Headphone
Plug
NC
C
B
C
S
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.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
SHUTDOWN
HP-SENSE
GND
BYPASS
HP-IN1
HP-IN2
GND
GND
V
O
2
IN+
IN–
V
DD
GAIN
V
O
1
GND
D PACKAGE
(TOP VIEW)
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.
Copyright 2000, Texas Instruments Incorporated
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AVAILABLE OPTIONS
PACKAGED DEVICE
T
A
SMALL OUTLINE
(D)
–40°C to 85°C TPA4860D
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, VDD 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI –0.3 V to VDD +0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation internally limited (See Dissipation Rating Table). . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA –40°C to 85°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.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C DERATING FACTOR TA = 70°C TA = 85°C
D 1250 mW 10 mW/°C 800 mW 650 mW
recommended operating conditions
MIN MAX UNIT
Supply voltage, V
DD
2.7
5.5
V
p
VDD = 3.3 V
1.25
2.7
V
Common-mode input voltage, V
IC
VDD = 5 V
1.25
4.5
V
Operating free-air temperature, T
A
–40
85
°C
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature range, VDD = 3.3 V (unless otherwise
noted)
TPA4860
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
V
OO
Output offset voltage (measured differentially)
See Note 1
5
20
mV
Supply ripple rejection ratio
VDD = 3.2 V to 3.4 V
75
dB
I
DD
Quiescent current
2.5
mA
I
DD(M)
Quiescent current, mute mode
750
µA
I
DD(SD)
Quiescent current, shutdown mode
0.6
µA
V
IH
High-level input voltage (HP-IN)
1.7
V
V
IL
Low-level input voltage (HP-IN)
1.7
V
V
OH
High-level output voltage (HP-SENSE)
IO = 100 µA
2.5
2.8
V
V
OL
Low-level output voltage (HP-SENSE)
IO = –100 µA
0.2
0.8
V
NOTE 1: At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2.
operating characteristics, VDD = 3.3 V, T
A
= 25°C, R
L
= 8 Ω
TPA4860
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
ÁÁББББББББББББББ
Á
p
p
ÁÁÁ
Á
THD = 0.2%,
AV = 2
ÁÁ
Á
f = 1 kHz,
ÁÁÁ
Á
350
ÁÁÁ
Á
mW
Á
Á
P
O
ББББББББББББББ
Á
Output power, see Note 2
ÁÁÁ
Á
THD = 2%,
AV = 2
ÁÁ
Á
f = 1 kHz,
ÁÁÁ
Á
500
ÁÁÁ
Á
mW
B
OM
Maximum output power bandwidth
Gain = 10,
THD = 2%
20
kHz
B
1
Unity-gain bandwidth
Open Loop
1.5
MHz
pp
pp
BTL
f = 1 kHz
56
dB
Supply ripple rejection ratio
SE
f = 1 kHz
30
dB
V
n
Noise output voltage, see Note 3
Gain = 2
20
µV
NOTES: 2. Output power is measured at the output terminals of the device.
3. Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz.
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature range, VDD = 5 V (unless otherwise
noted)
TPA4860
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
V
OO
Output offset voltage
See Note 1
5
20
mV
Supply ripple rejection ratio
VDD = 4.9 V to 5.1 V
70
dB
I
DD
Supply current
3.5
mA
I
DD(M)
Supply current, mute
750
µA
I
DD(SD)
Supply current, shutdown
0.6
µA
V
IH
High-level input voltage (HP-IN)
2.5
V
V
IL
Low-level input voltage (HP-IN)
2.5
V
V
OH
High-level output voltage (HP-SENSE)
IO = 500 µA
2.5
2.8
V
V
OL
Low-level output voltage (HP-SENSE)
IO = –500 µA
0.2
0.8
V
NOTE 1: At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2.
operating characteristic, VDD = 5 V, T
A
= 25°C, R
L
= 8 Ω
TPA4860
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
ÁÁÁББББББББББББББ
Á
p
p
ÁÁ
Á
THD = 0.2%,
AV = 2
ÁÁÁ
Á
f = 1 kHz,
ÁÁÁ
Á
1000
ÁÁÁ
Á
mW
ÁÁ
Á
P
O
ББББББББББББББ
Á
Output power, see Note 2
ÁÁ
Á
THD = 2%,
AV = 2
ÁÁÁ
Á
f = 1 kHz,
ÁÁÁ
Á
1100
ÁÁÁ
Á
mW
B
OM
Maximum output power bandwidth
Gain = 10,
THD = 2%
20
kHz
B
1
Unity-gain bandwidth
Open Loop
1.5
MHz
pp
pp
BTL
f = 1 kHz
56
dB
Supply ripple rejection ratio
SE
f = 1 kHz
30
dB
V
n
Noise output voltage, see Note 3
Gain = 2
20
µV
NOTES: 2. Output power is measured at the output terminals of the device.
3. Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz.
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
V
OO
Output offset voltage
Distribution
1,2
I
DD
Supply current distribution
vs Free-air temperature
3,4
ÁÁ
Á
THD+N
БББББББББ
Á
Total harmonic distortion plus noise
БББББ
Á
vs Frequency
ÁÁ
Á
5,6,7,8,9,
10,11,15,
16,17,18
ÁÁÁБББББББББÁБББББ
Á
vs Output power
ÁÁ
Á
12,13,14,
19,20,21
I
DD
Supply current
vs Supply voltage
22
V
n
Output noise voltage
vs Frequency
23,24
Maximum package power dissipation
vs Free-air temperature
25
Power dissipation
vs Output power
26,27
Maximum output power
vs Free-air temperature
28
p
p
vs Load Resistance
29
Output power
vs Supply Voltage
30
Open loop frequency response
vs Frequency
31
Supply ripple rejection ratio
vs Frequency
32,33
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 1
Number of Amplifiers
DISTRIBUTION OF TPA4860
OUTPUT OFFSET VOLTAGE
20
10
0
VOO – Output Offset Voltage – mV
25
15
5
VCC = 5 V
–3–2–101234567
Figure 2
Number of Amplifiers
DISTRIBUTION OF TPA4860
OUTPUT OFFSET VOLTAGE
20
10
0
VOO – Output Offset Voltage – mV
25
15
5
–3 –2 –1 0 1 2 3 4 5 6 7
VCC = 3.3 V
Figure 3
– Supply Current – mA
SUPPLY CURRENT DISTRIBUTION
vs
FREE-AIR TEMPERATURE
3.5
2
1
0
TA – Free-Air Temperature –°C
–20 25
2.5
1.5
0.5
VCC = 5 V
I
DD
3
85
4.5
4
Typical
Figure 4
– Supply Current – mA
SUPPLY CURRENT DISTRIBUTION
vs
FREE-AIR TEMPERATURE
3.5
2
1
0
TA – Free-Air Temperature –°C
–20 25
2.5
1.5
0.5
VCC = 3.3 V
I
DD
3
85
Typical
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 5
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
20
10
1
0.1
0.01
100 1 k 10 k 20 k
f – Frequency – Hz
VDD = 5 V
PO = 1 W
AV = –2 V/V
RL = 8 Ω
CB = 0.1 µF
CB = 1 µF
THD+N – Total Harmonic Distortion Plus Noise – %
Figure 6
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
20
10
1
0.1
0.01
100 1 k 10 k 20 k
f – Frequency – Hz
VDD = 5 V
PO = 1 W
AV = –10 V/V
RL = 8 Ω
CB = 0.1 µF
CB = 1 µF
THD+N – Total Harmonic Distortion Plus Noise – %
Figure 7
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
20
10
1
0.1
0.01
100 1 k 10 k 20 k
f – Frequency – Hz
VDD = 5 V
PO = 1 W
AV = –20 V/V
RL = 8 Ω
CB = 0.1 µF
CB = 1 µF
THD+N – Total Harmonic Distortion Plus Noise – %
Figure 8
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
20
10
1
0.1
0.01
100 1 k 10 k 20 k
f – Frequency – Hz
VDD = 5 V
PO = 0.5 W
AV = –2 V/V
RL = 8 Ω
CB = 0.1 µF
CB = 1 µF
THD+N – Total Harmonic Distortion Plus Noise – %
TPA4860
1-W MONO AUDIO POWER AMPLIFIER
SLOS164A – SEPTEMBER 1996 – REVISED MARCH 2000
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 9
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
20
10
1
0.1
0.01
100 1 k 10 k 20 k
f – Frequency – Hz
VDD = 5 V
PO = 0.5 W
AV = –10 V/V
RL = 8 Ω
CB = 0.1 µF
CB = 1 µF
THD+N – Total Harmonic Distortion Plus Noise – %
Figure 10
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
20
10
1
0.1
0.01
100 1 k 10 k 20 k
f – Frequency – Hz
THD+N – Total Harmonic Distortion Plus Noise – %
VDD = 5 V
PO = 0.5 W
AV = –20 V/V
RL = 8 Ω
CB = 0.1 µF
CB = 1 µF
Figure 11
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
20
10
1
0.1
0.01
100 1 k 10 k 20 k
f – Frequency – Hz
THD+N – Total Harmonic Distortion Plus Noise – %
VDD = 5 V
AV = –10 V/V
Single Ended
RL = 8 Ω
PO = 250 mW
RL = 32 Ω
PO = 60 mW
Figure 12
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
0.02
10
1
0.1
0.01
0.1 1
PO – Output Power – W
THD+N – Total Harmonic Distortion Plus Noise – %
VDD = 5 V
AV = –2 V/V
RL = 8 Ω
f = 20 Hz
CB = 0.1 µF
2
CB = 1 µF
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