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参数资料
| 型号： | LM4831VFX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP44 |
| 封装： | TQFP-44 |
| 文件页数： | 6/13页 |
| 文件大小： | 575K |
| 代理商： | LM4831VFX |
Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
65C to 150C
Input Voltage
0.3V to V
DD +0.3V
Power Dissipation (Note 3)
Internally limited
ESD Susceptibility (Note 4)
2500V
ESD Susceptibility (Note 5)
200V
Junction Temperature
150C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering
surface mount devices.
Thermal Resistance
θ
JC (typ)
15C/W
θ
JA (typ)
62C/W
Operating Ratings
Temperature Range
40C to 85C
Supply Voltage
2.7
≤ V
DD ≤ 5.5V
Electrical Characteristics
(Notes 1, 2) The following specifications apply for V
DD = 5V, RL =8 and f = 1 kHz, unless otherwise specified. Distortion
measurements represent the full audio chain from Input A of each channel to their respective output. Limits apply for
T
A = 25C.
Symbol
Parameter
Conditions
LM4831
Units
(Limits)
Typical
(Note
6)
Limit
(Note
7)
General Characteristics For Entire IC
V
DD
Supply Voltage
2.7
V (min)
5.5
V (max)
I
DD
Quiescent Power Supply
Current
Bridged Mode, I
O = 0 mA
16
50
mA (max)
Single-Ended Mode, I
O = 0 mA
10.5
mA
Docking Station Mode, I
O =0mA
7
mA
I
SD
Shutdown Current
V
PIN-43 = 5V, V PIN-41 =VPIN-42 = 0V
2
50
A (max)
V
DD/2
Half Supply Bypass Voltage
V
IN = 0V, VPin-43 = 0V
2.45
2.4
V (min)
2.6
V (max)
Power Amplifiers
P
O
Output Power - Bridged
Mode
R
L =8,THD = 1%
1.1
1
W (min)
R
L =4, THD = 1%
1.5
W
Output Power -
Single-Ended Mode
R
L =8, THD = 1%
300
mW
R
L =4, THD = 1%
550
mW
THD
Total Harmonic Distortion
Bridged Mode, P
O = 1W, RL =8
0.5
2.0
% (Max)
Single-Ended Mode, P
O = 225mW,
R
L =8
0.15
%
V
OS
Output Offset Voltage
V
IN = 0V
5
50
mV (Max)
E
Noise
Input Referred Noise
A-Weighted Filter, V
IN = 0V,
R
L =8
Bridged Output
45
100
V (max)
Single-Ended Output
35
100
V (max)
PSRR
Power Supply Rejection
Ratio
f = 1kHz, C
B = 0.5F, RL =8
Bridged Output
47
dB
Single-Ended Output
45
dB
X
TALK
Channel to Channel
Crosstalk
f = 1kHz, P
O = 1W, RL =8
Right to Left
82
dB
Left to Right
73
dB
I
TS
TRI-STATE Current-Single
Ended Mode
V
PIN-41 = 4.0V, L_PA+OUT =
R_PA+OUT = V
DD or GND
80
100
A (max)
LM4831
www.national.com
2
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| LM4832MTX/NOPB | 功能描述:IC AMP AUDIO PWR .25W AB 28TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
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