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LM4951A Arkusz danych(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Numer części LM4951A
Szczegółowy opis  Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection
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Producent  NSC [National Semiconductor (TI)]
Strona internetowa  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4951A Arkusz danych(HTML) 5 Page - National Semiconductor (TI)

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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
9.5V
Storage Temperature
−65°C to +150°C
Input Voltage
−0.3V to V
DD + 0.3V
Power Dissipation (Note 3)
Internally limited
ESD Rating (Note 4)
2000V
ESD Rating (Note 5)
200V
Junction Temperature (T
JMAX)
150°C
Thermal Resistance
 θ
JA (LLP) (Note 3)
73°C/W
Soldering Information
See AN-1187 'Leadless Leadframe
Packaging (LLP).'
Operating Ratings (Notes 1, 2)
Temperature Range
T
MIN TA TMAX
−40°C
T
A +85°C
Supply Voltage
2.7V
V
DD 9V
Electrical Characteristics V
DD = 7.5V (Notes 1, 2)
The following specifications apply for V
DD = 7.5V, AV-BTL = 6dB, RL = 8Ω unless otherwise specified. Limits apply for TA = 25°C.
Symbol
Parameter
Conditions
LM4951A
Units
(Limits)
Typical
(Note 6)
Limit
(Note 7)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A, RL = 8Ω BTL
2.5
4.5
mA (max)
I
SD
Shutdown Current
V
SD = GND (Note 8)
0.01
5
µA (max)
V
OS
Output Offset Voltage
5
30
mV (max)
V
SDIH
Shutdown Voltage Input High
1.2
V (min)
V
SDIL
Shutdown Voltage Input Low
0.4
V (max)
R
PULLDOWN
Pull-down Resistor on SD pin
75
45
k
Ω (min)
T
WU
Wake-up Time
C
B = 1.0µF
25
35
ms (max)
T
SD
Shutdown time
C
B = 1.0µF
10
ms (max)
TSD
Thermal Shutdown Temperature
170
150
190
°C (min)
°C (max)
P
O
Output Power
THD = 1% (max); f = 1kHz
R
L = 8Ω Mono BTL
1.8
1.5
W (min)
THD+N
Total Harmonic Distortion + Noise
P
O = 600mWRMS; f = 1kHz
A
V-BTL = 6dB
0.07
0.5
% (max)
P
O = 600mWRMS; f = 1kHz
A
V-BTL = 26dB
0.35
%
ε
OS
Output Noise
A-Weighted Filter, R
i = Rf = 20kΩ
Input Referred (Note 9)
10
µV
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mVp-p, f = 217Hz,
C
B = 1.0μF, Input Referred
66
56
dB (min)
Electrical Characteristics V
DD = 3.3V (Notes 1, 2)
The following specifications apply for V
DD = 3.3V, AV-BTL = 6dB, RL = 8Ω unless otherwise specified. Limits apply for TA = 25°C.
Symbol
Parameter
Conditions
LM4951A
Units
(Limits)
Typical
(Note 6)
Limit
(Note 7)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A, RL = 8Ω BTL
2.5
4.5
mA (max)
I
SD
Shutdown Current
V
SHUTDOWN = GND (Note 8)
0.01
2
µA (max)
V
OS
Output Offset Voltage
3
30
mV (max)
V
SDIH
Shutdown Voltage Input High
1.2
V (min)
V
SDIL
Shutdown Voltage Input Low
0.4
V (max)
T
WU
Wake-up Time
C
B = 1.0µF
25
ms
T
SD
Shutdown time
C
B = 1.0µF
10
ms (max)
5
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