POWER AMPLIFIER. TPA4860 Datasheet

TPA4860 AMPLIFIER. Datasheet pdf. Equivalent


etcTI TPA4860
www.ti.com
TPA4860
SLOS164B – SEPTEMBER 1996 – REVISED JUNE 2004
1-W MONO AUDIO POWER AMPLIFIER
FEATURES
1-W BTL Output (5 V, 0.2 % THD+N)
3.3-V and 5-V Operation
No Output Coupling Capacitors Required
Shutdown Control (IDD = 0.6 µA)
Headphone Interface Logic
Uncompensated Gains of 2 to 20 (BTL Mode)
Surface-Mount Packaging
Thermal and Short-Circuit Protection
High Power Supply Rejection(56-dB at 1 kHz)
LM4860 Drop-In Compatible
GND
SHUTDOWN
HP-SENSE
GND
BYPASS
HP-IN1
HP-IN2
GND
D PACKAGE
(TOP VIEW)
1 16
2 15
3 14
4 13
5 12
6 11
7 10
89
GND
VO2
IN+
IN–
VDD
GAIN
VO1
GND
DESCRIPTION
The TPA4860 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average
power into an 8-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
RI
CI
RF
CB
NC
VDD
RPU
Headphone
Plug
11 GAIN
13 IN–
14 IN+
5 BYPASS
6 HP-IN1
7 HP-IN2
3 HP-SENSE
2 SHUTDOWN
VDD/2
VDD 12
VDD
CS
VO1 10
VO2 15
1W
Bias
Control
1, 4, 8, 9, 16
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.
Copyright © 1996–2004, Texas Instruments Incorporated


TPA4860 Datasheet
Recommendation TPA4860 Datasheet
Part TPA4860
Description 1-W MONO AUDIO POWER AMPLIFIER
Feature TPA4860; www.ti.com TPA4860 SLOS164B – SEPTEMBER 1996 – REVISED JUNE 2004 1-W MONO AUDIO POWER AMPLIFIER FE.
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Datasheet
Download TPA4860 Datasheet




etcTI TPA4860
TPA4860
SLOS164B – SEPTEMBER 1996 – REVISED JUNE 2004
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.
AVAILABLE OPTIONS
TA
–40°C to 85°C
PACKAGED DEVICE
SMALL OUTLINE (D)
TPA4860D
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted) (1)
VDD Supply voltage
VI Input voltage
Continuous total power dissipation
TA Operating free-air temperature range
Tstg Storage temperature range
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
UNIT
6V
–0.3 V to VDD +0.3 V
Internally Limited (See Dissipation Rating Table)
–40°C to 85°C
–65°C to 150°C
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.
PACKAGE
D
DISSIPATION RATING TABLE
TA 25°C
1250 mW
DERATING FACTOR
10 mW/°C
TA = 70°C
800 mW
TA = 85°C
650 mW
RECOMMENDED OPERATING CONDITIONS
VDD Supply voltage
VIC
Common-mode input voltage
VDD = 3.3 V
VDD = 5 V
TA Operating free-air temperature
MIN MAX UNIT
2.7 5.5 V
1.25 2.7 V
1.25 4.5 V
–40 85 °C
2



etcTI TPA4860
www.ti.com
TPA4860
SLOS164B – SEPTEMBER 1996 – REVISED JUNE 2004
ELECTRICAL CHARACTERISTICS
at specified free-air temperature range, VDD = 3.3 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VOO Output offset voltage (measured differentially)
Supply ripple rejection ratio
IDD
IDD(M)
IDD(SD)
VIH
VIL
VOH
VOL
Quiescent current
Quiescent current, mute mode
Quiescent current, shutdown mode
High-level input voltage (HP-IN)
Low-level input voltage (HP-IN)
High-level output voltage (HP-SENSE)
Low-level output voltage (HP-SENSE)
(1) At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2.
See (1)
VDD = 3.2 V to 3.4 V
IO = 100 µA
IO = -100 µA
TPA4860
MIN TYP
5
75
2.5
750
0.6
1.7
1.7
2.5 2.8
0.2
MAX
20
0.8
UNIT
mV
dB
mA
µA
µA
V
V
V
V
OPERATING CHARACTERISTICS
VDD = 3.3 V, TA = 25°C, RL = 8
PARAMETER
TEST CONDITIONS
PO Output power (1)
THD = 0.2%, f = 1 kHz,
THD = 2%, f = 1 kHz,
BOM Maximum output power bandwidth
B1 Unity-gain bandwidth
BTL
Supply ripple rejection ratio
SE
Vn Noise output voltage(2)
Gain = 10,
Open loop
f = 1 kHz
f = 1 kHz
Gain = 2
(1) Output power is measured at the output terminals of the device.
(2) Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz.
AV = 2
AV = 2
THD = 2%
TPA4860
MIN TYP MAX
350
500
20
1.5
56
30
20
UNIT
mW
mW
kHz
MHz
dB
dB
µV
3







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