LM4862 [UTC]
AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE; 具有关断模式音频功率放大器
| 型号： | LM4862 |
| 厂家： | 
Unisonic Technologies |
| 描述： | AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| 文件： | 总5页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LM4862
Preliminary
CMOS IC
AUDIO POWER AMPLIFIER WITH
SHUTDOWN MODE
DESCRIPTION
DIP-8
The UTC LM4862 is a built in bridge-connected form audio amplifier.
In normal operation, it can deliver 500 mW (typ.) continuous power. The
output load of the UTC LM4862 should be 8Ω, the supply voltage should
be 5V, and the THD is as low as 1%.
As the most popular amplifiers, LM4862 is also designed to be able
to provide high quality output power with less external components, such
as the output capacitors for coupling, bootstrap capacitors, or snobbery
networks.
In applications, the UTC LM4862 can be specially used as an ideal
in low-power portable systems, for example, portable computers,
desktop computers, and low voltage audio systems, etc.
SOP-8
FEATURES
* Stable Unity Gain
* Gain Configuration can be set by External Components
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
LM4862G-D08-T
LM4862G-S08-R
LM4862L-D08-T
LM4862L-S08-R
DIP-8
Tube
SOP-8
Tape Reel
www.unisonic.com.tw
1 of 5
Copyright © 2010 Unisonic Technologies Co., Ltd
QW-R502-314.b
LM4862
Preliminary
CMOS IC
PIN CONFIGURATION
1
2
3
4
8
SHUTDOWN
BYPASS
VO2
7
6
GND
VDD
IN+
IN-
VO1
5
PIN DESCRIPTION
PIN NO
PIN NAME
DESCRIPTION
1
2
3
4
5
6
7
8
SHUTDOWN Shutdown mode control input, high active
BYPASS
IN+
Connect to internal voltage divider for middle supply bias
Non-inverting power input pin
Inverting power input pin
Output power pin 1
Power supply
IN-
VO1
VDD
GND
VO2
Ground
Output power pin 2
UNISONIC TECHNOLOGIES CO., LTD
2 of 5
QW-R502-314.b
www.unisonic.com.tw
LM4862
Preliminary
CMOS IC
BLOCK DIAGRAM
VDD
+
CS 1.0µF
RF 20kꢀ
5
6
VO1
RL 8ꢀ
100kꢀ
40kꢀ
4
-IN
-
-
VO2
3 +IN
8
Ri 20kꢀ
+
40kꢀ
AV=-1
+
Ci 0.39µF
VDD /2
Bypass
2
Audio Input
CB
1.0µF
Bias
100kꢀ
VDD
RPU
1 Shutdown
GND
7
NC
UNISONIC TECHNOLOGIES CO., LTD
3 of 5
QW-R502-314.b
www.unisonic.com.tw
LM4862
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING (Ta=25°С unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
V
Supply Voltage
Input Voltage
VDD
6.0
-0.3 ~ +(0.3+VDD
500
VIN
)
V
DIP-8
mW
mW
°С
Power Dissipation
PD
SOP-8
300
Infrared (15 sec.)
220
Junction Temperature
Storage Temperature
TJ
+150
°С
TSTG
-65 ~ +150
°С
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS (VCC=5V, f=1kHz, Ta=25°С unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Supply Voltage
VDD
2.0
5.5
50
V
Output Offset Voltage
Quiescent Power Supply Current
Shutdown Current
VOS
VIN=0V
5.0
mV
IDD
VIN=0V, IO=0A
6.5 12.0 mA
ISD
VPIN1=VDD
0.6
500
800
0.5
60
µA
mW
mW
%
THD=1%, f=1kHz, RL=8ꢀ
THD=10%, f=1kHz, RL=8ꢀ
f=1kHz, RL=8ꢀ, Po = 500mW
Output Power
PO
Total Harmonic Distortion
THD
Power Supply Rejection Ratio
PSRR VCC=4.9V ~ 5.1V
dB
UNISONIC TECHNOLOGIES CO., LTD
4 of 5
QW-R502-314.b
www.unisonic.com.tw
LM4862
Preliminary
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
5 of 5
QW-R502-314.b
www.unisonic.com.tw
相关型号：
LM4862MX/NOPB
IC 0.825 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, 0.150 INCH, SOIC-8, Audio/Video Amplifier
NSC
©2020 ICPDF网 联系我们和版权申明