- 您现在的位置：买卖IC网 > PDF目录30751 > LM4731TA/NOPB (NATIONAL SEMICONDUCTOR CORP) 25 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 PDF资料下载
参数资料
| 型号： | LM4731TA/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 25 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封装： | PLASTIC, TO-220, 15 PIN |
| 文件页数： | 11/16页 |
| 文件大小： | 640K |
| 代理商： | LM4731TA/NOPB |
Electrical Characteristics (Notes 1, 2) (Continued)
The following specifications apply for V
+ = +22V, V- = 22V and R
L =8
unless otherwise specified. Limits apply for T
A =
25C.
Symbol
Parameter
Conditions
LM4731
Units
(Limits)
Typical
Limit
(Notes 7, 8)
V
IL
Mute Low Input Voltage
Not in Mute Mode (Play)
0.8
V (max)
V
IH
Mute High Input Voltage
In Mute Mode
2.0
2.5
V (min)
Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given. However, the typical value is a good indication of a device’s performance.
Note 3: The maximum power dissipation must be de-rated at elevated temperatures and is dictated by TJMAX, θJC, and the ambient temperature TA. The maximum
allowable power dissipation is PDMAX =(TJMAX -TA)/ θJC or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4731, TJMAX = 150C
and the typical
θJC is 1.5C/W for the TA15A package . Refer to the Thermal Considerations section for more information.
Note 4: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 5: Machine Model: a 220pF - 240pF discharged through all pins.
Note 6: Typical specifications are sepcified at 25C and represent the parametric norm.
Note 7: Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9: The operating junction temperature maximum is 150C. However, the instantaneous Safe Operating Area temperature is 250C.
Note 10: V- must have at least -9V at its pin with reference to GND in order for the under-voltage protection circuitry to be disabled. In addition, the voltage
differential between V+ and V- must be greater than 14V.
Note 11: The feedback compensation network limits the bandwidth of the closed-loop response causing the skew rate to be reduced by the high frequency roll-off.
Without feedback compensation the slew rate is typically larger.
Note 12: The LM4731TA package TA15A is a non-isolated package setting the tab of the device and the heat sink to V-potential when the LM4731TA is directly
mounted to the heat sink using only thermal compound. If a mica washer is used in addition to thermal compound,
θCS (case to sink) is increased, but the heat sink
will be electrically isolated from V-.
Bridged Amplifier Application Circuit
20060305
FIGURE 2. Bridged Amplifier Application Circuit
LM4731
www.national.com
4
相关PDF资料 |
PDF描述 |
|---|---|
| LM4752MDC | 7 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| LM4752MWC | 7 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| LM4752T/NOPB | 7 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM7 |
| LM4753T | 11.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| LM4755MWC | 11 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4732 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Stereo 50W Audio Power Amplifier with Mute |
| LM4732TA | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Stereo 50W Audio Power Amplifier with Mute |
| LM4733 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3 Channel 30W Audio Power Amplifier with Mute |
| LM4733BG240G320WCF | 制造商:DENSITRON 功能描述:LCD MODULE GRAPHIC |
| LM4733TA | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3 Channel 30W Audio Power Amplifier with Mute |
发布紧急采购，3分钟左右您将得到回复。