SGM4871 [SGMICRO]
2.4W Audio Power Amplifier with Shutdown Mode;
| 型号： | SGM4871 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 2.4W Audio Power Amplifier with Shutdown Mode |
| 文件： | 总10页 (文件大小：610K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM4871
2.4W Stereo Audio Power Amplifier
with Shutdown Mode
GENERAL DESCRIPTION
FEATURES
The SGM4871 is a mono bridge-connected audio
power amplifier which operates from 2.5V to 5.5V
supply voltage. It can deliver 2.4W into a 4Ω load from
5V supply at THD+N = 10%. It is designed for portable
applications. The external gain-setting resistors can
configure the unity-gain stable of the device.
• Supply Voltage Range: 2.5V to 5.5V
• Output Power at THD+N = 10%, 1kHz
SGM4871YPS8: 2.4W (TYP) into 4Ω Load
SGM4871YS8: 1.5W (TYP) into 8Ω Load
• Shutdown Current: 0.07μA (TYP)
• No Output Coupling Capacitors
• External Gain Configuration Capability
• Unity Gain Stable
The SGM4871 has low power consumption shutdown
mode and thermal shutdown protection.
• Thermal Overload Protection Circuitry
• -40℃ to +85℃ Operating Temperature Range
• Available in Green SOIC-8 (Exposed Pad) and
SOIC-8 Packages
The SGM4871 is applied to low power portable
systems. Output coupling capacitors, bootstrap
capacitors or snubber networks are not needed.
The SGM4871 is available in Green SOIC-8 and
SOIC-8 (Exposed Pad) packages. It operates over an
ambient temperature range of -40℃ to +85℃.
APPLICATIONS
Mobile Phones, PDAs
Portable Systems
Wireless Handsets
SG Micro Corp
NOVEMBER 2012 –REV. A. 2
www.sg-micro.com
2.4W Stereo Audio Power Amplifier
with Shutdown Mode
SGM4871
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SOIC-8
(Exposed Pad)
SGM4871YPS8
XXXXX
SGM4871YPS8/TR
SGM4871YS8/TR
Tape and Reel, 2500
Tape and Reel, 2500
-40℃ to +85℃
-40℃ to +85℃
SGM4871
SGM4871YS8
XXXXX
SOIC-8
MARKING INFORMATION
NOTE: XXXXX = Date Code and Vendor Code.
X X X X X
Vendor Code
Date Code - Week
Date Code - Year
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
OVERSTRESS CAUTION
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
Supply Voltage................................................................5.5V
Input Voltage........................................... -0.1V to (V+) + 0.1V
Junction Temperature.................................................+150℃
Storage Temperature Range.......................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
HBM.............................................................................2000V
MM.................................................................................200V
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged if ESD protections are
not considered carefully. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions.
Failureto observe proper handlingand installation procedures
can cause damage. ESD damage can range from subtle
performance degradation tocomplete device failure. Precision
integrated circuits may be more susceptible to damage
because even small parametric changes could cause the
device not to meet the published specifications.
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range........................................2.5V to 5.5V
Operating Temperature Range .......................-40℃ to +85℃
PIN CONFIGURATION
(TOP VIEW)
DISCLAIMER
SG Micro Corp reserves the right to make any change in
SHDN
Bypass
+IN
1
2
3
4
8
7
6
5
VO2
circuit design, or specifications without prior notice.
GND
V
+
-IN
VO1
SOIC-8/SOIC-8 (Exposed Pad)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2012
2
2.4W Stereo Audio Power Amplifier
with Shutdown Mode
SGM4871
ELECTRICAL CHARACTERISTICS
(The following specifications apply for TA = +25℃, V+ = 5V and RL = 8Ω, unless otherwise specified.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.5
65
UNITS
V
Supply Voltage
V+
2.5
Output Offset Voltage
VOS
5.5
5.2
mV
No Load
RL = 8Ω
9
Quiescent Power Supply Current
IQ
VSHDN = GND
mA
μA
V
5.3
Shutdown Current
ISD
V+ = 5.0V, VSHDN = 5.0V, IO = 0mA
0.07
2
Shutdown Voltage Input High
Shutdown Voltage Input Low
VSDIH
VSDIL
1.2
0.4
f = 1kHz, THD+N = 1%
1.9
2.4
1.2
1.5
0.2
70
W
W
W
W
%
Output Power (4Ω)
PO
PO
f = 1kHz, THD+N = 10%
f = 1kHz, THD+N = 1%
Output Power (8Ω)
f = 1kHz, THD+N = 10%
Total Harmonic Distortion + Noise
Power Supply Rejection Ratio
THD+N
PSRR
20Hz < f < 20kHz, RL = 8Ω, PO = 1W
VSHDN = GND, V+ = 4.9V to 5.1V
dB
SG Micro Corp
www.sg-micro.com
NOVEMBER 2012
3
2.4W Stereo Audio Power Amplifier
with Shutdown Mode
SGM4871
TYPICAL PERFORMANCE CHARACTERISTICS
Output Pow er vs. Supply Voltage
THD+N vs. Frequency
2
1.5
1
1
V+ = +5V
PO = 1.0W
RL = 8Ω
AV = 2
f = 1kHz
BW < 80kHz
RL = 8Ω
No Filters
0.1
10% THD+N
1% THD+N
0.5
0
0.01
0.01
0.1
1
10
100
2
2.5
3
3.5
4
4.5
5
5.5
Frequency (kHz)
Supply Voltage (V)
THD+N vs. Output Pow er
V+ = +5V
AV = 2
f = 1kHz
RL = 8Ω
Supply Current vs. Supply Voltage
10
1
6
VIN = 0V
No Load
5.5
5
4.5
4
BW < 80kHz
0.1
0.01
3.5
3
0.01
0.1
1
10
2
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
Output Pow er (W)
PSRR vs. Frequency
Pow er Dissipation vs. Output Pow er
90
80
70
60
50
40
30
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
V+ = +5V
CB = 1.0μF
RL = 8Ω
VRIPPLE = 200mVrms
V+ = +5V, f = 1kHz, RL = 8Ω
THD + N ≤ 1%, BW < 80kHz
0.01
0.1
1
10
100
0
0.5
1
1.5
Frequency (kHz)
Output Pow er (W)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2012
4
2.4W Stereo Audio Power Amplifier
with Shutdown Mode
SGM4871
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
THD+N vs. Frequency
THD+N vs. Frequency
1
1
V+ = +5V
PO = 1.0W
RL = 8Ω
AV = 2
No Filters
0.1
0.1
V+ = +5V
PO = 1.6W
RL = 4Ω
AV = 2
No Filters
0.01
0.01
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
THD+N vs. Output Pow er
V+ = +5V
AV = 2
f = 1kHz
RL = 8Ω
THD+N vs. Output Pow er
V+ = +5V
AV = 2
f = 1kHz
RL = 4Ω
10
1
10
1
0.1
BW < 80kHz
BW < 80kHz
0.1
0.01
0.01
0.01
0.1
1
10
0.01
0.1
1
10
Output Pow er (W)
Output Pow er (W)
Pow er Dissipation vs. Output Pow er
Pow er Dissipation vs. Output Pow er
1.4
1.2
1
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.8
0.6
0.4
0.2
0
V+ = +5V, f = 1kHz, RL = 4Ω
THD+N ≤ 1%, BW < 80kHz
V+ = +5V, f = 1kHz, RL = 8Ω
THD+N ≤ 1%, BW < 80kHz
0
0.5
1
1.5
2
2.5
0
0.5
1
1.5
Output Pow er (W)
Output Pow er (W)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2012
5
2.4W Stereo Audio Power Amplifier
with Shutdown Mode
SGM4871
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Clipping Voltage vs. Supply Voltage
PSRR vs. Frequency
1
0.8
0.6
0.4
0.2
0
90
80
70
60
50
40
30
8Ω Top Side
V+ = +5V
CB = 1.0μF
RL = 8Ω
VRIPPLE = 200mVrms
8Ω Bottom Side
0.01
0.1
1
10
100
2
2.5
3
3.5
4
4.5
5
5.5
Frequency (kHz)
Supply Voltage (V)
Output Pow er vs. Load Resistance
Supply Current vs. Supply Voltage
2
1.5
1
6
V+ = +5V
f = 1kHz
BW < 80kHz
V
IN = 0V
5.5
5
No Load
4.5
4
10% THD+N
1% THD+N
10
0.5
0
3.5
3
0
20
30
40
2
2.5
3
3.5
4
4.5
5
5.5
Load Resistance (Ω)
Supply Voltage (V)
Output Pow er vs. Supply Voltage
2.5
2
f = 1kHz
BW < 80kHz
RL = 8Ω
1.5
1
10% THD+N
0.5
0
1% THD+N
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2012
6
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOIC-8
0.6
D
e
2.2
E1
E
5.2
b
1.27
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.750
0.250
1.550
0.510
0.250
5.100
4.000
6.200
MIN
MAX
0.069
0.010
0.061
0.020
0.010
0.200
0.157
0.244
A
A1
A2
b
1.350
0.100
1.350
0.330
0.170
4.700
3.800
5.800
0.053
0.004
0.053
0.013
0.006
0.185
0.150
0.228
c
D
E
E1
e
1.27 BSC
0.050 BSC
L
0.400
0°
1.270
8°
0.016
0°
0.050
8°
θ
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00010.000
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOIC-8 (Exposed Pad)
3.302
D
e
E1
E
2.413 5.56
E2
1.91
b
D1
1.27
0.61
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
MIN
MAX
0.067
0.004
0.061
0.020
0.010
0.201
0.134
0.157
0.244
0.099
A
A1
A2
b
1.700
0.100
1.550
0.510
0.250
5.100
3.402
4.000
6.200
2.513
0.000
1.350
0.330
0.170
4.700
3.202
3.800
5.800
2.313
0.000
0.053
0.013
0.007
0.185
0.126
0.150
0.228
0.091
c
D
D1
E
E1
E2
e
1.27 BSC
0.050 BSC
L
0.400
0°
1.270
8°
0.016
0°
0.050
8°
θ
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00013.000
www.sg-micro.com
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant
SOIC-8
13″
13″
12.4
12.4
6.40
6.40
5.40
5.40
2.10
2.10
4.0
4.0
8.0
8.0
2.0
2.0
12.0
12.0
Q1
Q1
SOIC-8
(Exposed Pad)
SG Micro Corp
TX10000.000
www.sg-micro.com
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Reel Type
Pizza/Carton
13″
386
280
370
5
SG Micro Corp
www.sg-micro.com
TX20000.000
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