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参数资料
| 型号： | LM4674SQBD |
| 厂商： | National Semiconductor |
| 文件页数： | 23/27页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION LM4674SQ |
| 产品培训模块： | PowerWise® Products and Technology |
| 标准包装： | 1 |
| 系列： | Boomer® |
| 放大器类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 2.5W x 2 @ 4 欧姆 |
| 电源电压： | 2.4 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 板类型： | 完全填充 |
| 已用 IC / 零件： | LM4674 |
| 已供物品： | 板 |
| 相关产品： | LM4674SQX-ND - IC AMP AUDIO PWR 2.5W STER 16LLP LM4674SQ/NOPBDKR-ND - IC AMP AUDIO PWR 2.5W STER 16LLP LM4674SQ/NOPBCT-ND - IC AMP AUDIO PWR 2.5W STER 16LLP LM4674SQ/NOPBTR-ND - IC AMP AUDIO PWR 2.5W STER 16LLP |
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SNAS344E – DECEMBER 2005 – REVISED APRIL 2013
ABSOLUTE MAXIMUM RATINGS
(1) (2)
Supply Voltage(1)
6.0V
Storage Temperature
65°C to +150°C
Input Voltage
–0.3V to VDD +0.3V
Power Dissipation(3)
Internally Limited
ESD Susceptibility, all other pins(4)
2000V
ESD Susceptibility(5)
200V
Junction Temperature (TJMAX)
150°C
Thermal Resistance
θJA (DSBGA)
45.7°C/W
θJA (WQFN)
38.9°C/W
(1)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3)
The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature,
TA. The maximum allowable power dissipation is PDMAX = (TJMAX – TA)/ θJA or the number given in Absolute Maximum Ratings,
whichever is lower. For the LM4674 see power derating currents for more information.
(4)
Human body model, 100pF discharged through a 1.5k
resistor.
(5)
Machine Model, 220pF–240pF discharged through all pins.
OPERATING RATINGS
(1) (2)
Temperature Range (TMIN ≤ TA ≤ TMAX)
40°C ≤ TA ≤ 85°C
Supply Voltage
2.4V
≤ VDD ≤ 5.5V
(1)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
ELECTRICAL CHARACTERISTICS VDD = 3.6V
(1) (2)
The following specifications apply for AV = 6dB, RL = 15H + 8 + 15H, f = 1kHz unless otherwise specified. Limits apply for
TA = 25°C.
LM4674
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)(5)
VOS
Differential Output Offset Voltage
VIN = 0, VDD = 2.4V to 5.0V
5
mV
VIN = 0, RL = ∞,
4
6
mA
Both channels active, VDD = 3.6V
IDD
Quiescent Power Supply Current
VIN = 0, RL = ∞,
5
7.5
mA
Both channels active, VDD = 5V
ISD
Shutdown Current
V SDR = V SDL = GND
0.03
1
μA
VSDIH
Shutdown Voltage Input High
1.4
V (min)
VSDIL
Shutdown Voltage Input Low
0.4
V (max)
TWU
Wake Up Time
V SDR/SDL = 0.4V
0.5
ms
(1)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3)
Typicals are measured at 25°C and represent the parametric norm.
(4)
Limits are specified to AOQL (Average Outgoing Quality Level).
(5)
Datasheet min/max specification limits are specified by design, test, or statistical analysis.
Copyright 2005–2013, Texas Instruments Incorporated
5
Product Folder Links: LM4674
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相关代理商/技术参数 |
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|---|---|
| LM4674SQX/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4674TL | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Filterless 2.5W Stereo Class D Audio Power Amplifier |
| LM4674TL/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4674TLBD | 功能描述:音频 IC 开发工具 LM4674 EVAL BOARD RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| LM4674TLX | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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