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LM4665 Datasheet(Fiches technique) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Numéro de pièce LM4665
Description  Filterless High Efficiency 1W Switching Audio Amplifier
Télécharger  18 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
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 3 page
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Absolute Maximum Ratings (Notes 1,
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (Note 1)
6.0V
Storage Temperature
−65˚C to +150˚C
Voltage at Any Input Pin
V
DD + 0.3V
≥ V ≥ GND - 0.3V
Power Dissipation (Note 3)
Internally Limited
ESD Susceptibility (Note 4)
2.0kV
ESD Susceptibility (Note 5)
200V
Junction Temperature (T
J)
150˚C
Thermal Resistance
θ
JA (MSOP)
190˚C/W
θ
JC (MSOP)
56˚C/W
θ
JA (micro SMD)
180˚C/W
θ
JA (LLP) (Note 10)
63˚C/W
θ
JC (LLP) (Note 10)
12˚C/W
Soldering Information
See AN-1112 "microSMD Wafers Level Chip Scale
Package."
Operating Ratings (Note 2)
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ 85˚C
Supply Voltage (MSOP & LD)
2.7V
≤ V
DD
≤ 5.5V
Supply Voltage (ITL) (Note11)
2.7V
≤ V
DD
≤ 3.8V
Electrical Characteristics V
DD =5V
(Notes 1, 2, 11)
The following specifications apply for V
DD = 5V, RL =8
Ω + 33µH, measurement bandwidth is <10Hz - 22kHz unless other-
wise specified. Limits apply for T
A = 25˚C.
Symbol
Parameter
Conditions
LM4665
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
I
DD
Quiescent Power Supply Current
V
IN = 0V, No Load
V
IN = 0V, 8
Ω + 22µH Load
14
14.5
mA
mA
I
SD
Shutdown Current
V
SD =VSD Mode (Note 9)
0.1
5.0
µA (max)
V
SDIH
Shutdown Voltage Input High
V
SD Mode =VDD
1.2
1.4
V (min)
V
SDIL
Shutdown Voltage Input Low
V
SD Mode =VDD
1.1
0.4
V (max)
V
SDIH
Shutdown Voltage Input High
V
SD Mode = GND
1.2
1.4
V (min)
V
SDIL
Shutdown Voltage Input Low
V
SD Mode = GND
1.1
0.4
V (max)
V
GSIH
Gain Select Input High
1.2
1.4
V (min)
V
GSIL
Gain Select Input Low
1.1
0.4
V (max)
A
V
Closed Loop Gain
V
Gain Select =VDD
6
5.5
6.5
dB (min)
dB (max)
A
V
Closed Loop Gain
V
Gain Select = GND
12
11.5
12.5
dB (min)
dB (max)
V
OS
Output Offset Voltage
10
mV
T
WU
Wake-up Time
5
ms
P
o
Output Power
THD+N = 3% (max), f
IN = 1kHz
1.4
W
THD+N
Total Harmonic Distortion+Noise
P
O = 400mWRMS,fIN = 1kHz
0.8
%
R
IN
Differential Input Resistance
V
Gain Select =VDD, Gain = 6dB
100
k
V
Gain Select = GND, Gain = 12dB
65
k
PSRR
Power Supply Rejection Ratio
V
Ripple = 100mVRMS,
f
Ripple = 217Hz, AV = 6dB
Inputs Terminated
52
dB
CMRR
Common Mode Rejection Ratio
V
Ripple = 100mVRMS,
f
Ripple = 217Hz, AV = 6dB
43
dB
e
N
Output Noise Voltage
A-Weighted filter, V
IN = 0V
350
µV
www.national.com
3




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