參數(shù)資料
型號(hào)： LM2876MWC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 40 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC7
封裝： WAFER
文件頁(yè)數(shù)： 17/22頁(yè)
文件大?。?/td> 611K
代理商： LM2876MWC
Electrical Characteristics (Notes 4, 5) (Continued)
The following specifications apply for V
+ = +30V, V = 30V, I
MUTE = 0.5 mA with RL =8 unless otherwise specified. Limits
apply for T
A = 25C.
Symbol
Parameter
Conditions
LM2876
Units
(Limits)
Typical
Limit
(Note 9) (Note 10)
eIN
(Note 3)
Input Noise
IHF — A Weighting Filter
2.0
8
V (max)
R
IN = 600 (Input Referred)
SNR
Signal-to-Noise Ratio
P
O = 1W, A-Weighted,
98
dB
Measured at 1 kHz, R
S =25
P
O = 25W, A-Weighted,
112
dB
Measured at 1 kHz, R
S =25
Ppk= 75W, A-Weighted,
117
dB
Measured at 1 kHz, R
S =25
IMD
Intermodulation Distortion Test
60 Hz, 7 kHz, 4:1 (SMPTE)
0.004
%
60 Hz, 7 kHz, 1:1 (SMPTE)
0.006
Note 2: DC Electrical Test; refer to Test Circuit #1.
Note 3: AC Electrical Test; refer to Test Circuit #2.
Note 4: All voltages are measured with respect to the GND pin (pin 7), unless otherwise specified.
Note 5: 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 device performance.
Note 6: For operating at case temperatures above 25C, the device must be derated based on a 150C maximum junction temperature and a thermal resistance of
θJC = 1.0 C/W (junction to case). Refer to the Thermal Resistance figure in the Application Information section under Thermal Considerations.
Note 7: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 8: The operating junction temperature maximum is 150C, however, the instantaneous Safe Operating Area temperature is 250C.
Note 9: Typicals are measured at 25C and represent the parametric norm.
Note 10: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 11: The LM2876T package TA11B is a non-isolated package, setting the tab of the device and the heat sink at V potential when the LM2876 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 isolated from V.
Note 12: The feedback compensation network limits the bandwidth of the closed-loop response and so the slew rate will be reduced due to the high frequency
roll-off. Without feedback compensation, the slew rate is typically larger.
Note 13: V must have at least 9V at its pin with reference to ground in order for the under-voltage protection circuitry to be disabled.
Note 14: The output dropout voltage is the supply voltage minus the clipping voltage. Refer to the Clipping Voltage vs Supply Voltage graph in the Typical Perfor-
mance Characteristics section.
Test Circuit #1 (DC Electrical Test Circuit)
DS011775-3
LM2876
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2876T 制造商:Texas Instruments 功能描述:AMP AUDIO + MUTE 75W 2876 SIL-11
LM2876T 制造商:Texas Instruments 功能描述:AMP AUDIO + MUTE 75W 2876 SIL-11
LM2876T/NOPB 功能描述:IC AMP AUDIO PWR 40W AB TO220-11 RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Overture™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
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LM2876TF NOPB 制造商:Texas Instruments 功能描述:Audio Amp Speaker 1-CH Mono 40W Class-AB 11-Pin(11+Tab) TO-220 Rail
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