參數(shù)資料
型號： LM4865M
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻控制
英文描述： 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
中文描述： 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO8
封裝： SOIC-8
文件頁數(shù)： 2/9頁
文件大?。?/td> 340K
代理商： LM4865M
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
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
6.0V
65C to +150C
0.3V to V
DD
+0.3V
Internally Limited
2000V
200V
150C
Soldering Information
Vapor Phase (60 sec.)
Infrared (15 sec.)
Thermal Resistance
θ
JC
(SOP)
θ
JA
(SOP)
θ
JC
(MSOP)
θ
JA
(MSOP)
215C
220C
35C/W
150C/W
56C/W
190C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
See AN-450 “Surface Mounting and their Effects on Product
Reliability” for other methods of soldering surface mount
devices.
40C
≤
T
A
≤
+85C
2.7V
≤
V
DD
≤
5.5V
Electrical Characteristics
(Notes 1, 2)
he following specifications apply for V
DD
= 5V, unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4865
Units
(Limits)
Typical
(Note 6)
Limit
(Note 7)
2.7
5.5
7
6
V
DD
Supply Voltage
V (min)
V (max)
mA (max)
mA (max)
μA
mV (max)
mW
(max)
I
DD
Quiescent Power Supply
Current
V
IN
= 0V, I
O
= 0A, HP Sense = 0V
V
IN
= 0V, I
O
- 0A, HP Sense = 5V
V
PIN4
≤
0.3V
V
IN
= 0V
THD = 1% (max), HP Sense
<
0.8V, f = 1 kHz,
R
L
= 8
THD = 10% (max), HP Sense
<
0.8V,
f = 1 kHz, R
L
= 8
THD + N = 1%, HP Sense
>
4V, f = 1 kHz,
R
L
= 32
THD = 10%, HP Sense
>
4V, f = 1 kHz,
R
L
= 32
P
O
= 300 mWrms, f = 20 Hz–20 kHz, R
L
= 8
4
3.5
0.7
5
I
SD
V
OS
P
O
Shutdown Current
Output Offset Voltage
Output Power
50
750
500
1.0
W
80
mW
110
mW
THD+N
Total Harmonic Distortion +
Noise
Power Supply Rejection Ratio
0.6
%
PSSR
V
RIPPLE
= 200 mVrms, R
L
= 8
, C
B
= 1.0 μF,
f = 1 kHz
Gain with V
PIN4
≥
4.0V, (80% of V
DD
)
Attenuation with V
PIN4
≤
0.9V, (20% of V
DD
)
50
dB
C
RANGE
Attenuator Range-Single Ended
20
72
18.8
70
4
0.8
dB (min)
dB (min)
V (max)
V (min)
V
IH
V
IL
HP Sense High Input Voltage
HP Sense Low Input Voltage
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 andAC 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 3:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
,
θ
, and the ambient temperature T
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
T
A
)/
θ
JA
or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4865M, T
JMAX
=
150C.
Note 4:
Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 5:
Machine Model, 220 pF–240 pF discharged through all pins.
Note 6:
Typicals are measured at 25C and represent the parametric norm.
Note 7:
Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8:
The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
L
www.national.com
2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4865M 制造商:Texas Instruments 功能描述:AMP AUDIO/VOLT CONTROL 0.75W 4865
LM4865M/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4865MM 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4865MM/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4865MMX 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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