LM4892 NSC [National Semiconductor], LM4892 Datasheet - Page 3

• Manufacturer Part Number: LM4892
• Description: 1 Watt Audio Power Amplifier with Headphone Sense
• Manufacturer: NSC [National Semiconductor]

I
I
P
V
V
THD+N
PSSR
I
I
P
V
V
THD+N
DD
SD
DD
SD
Symbol
Symbol
o
IH
IL
o
IH
IL
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics V
The following specifications apply for V
Electrical Characteristics V
The following specifications apply for V
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
Thermal Resistance
θ
θ
θ
JC
JA
JA
(SOP)
(SOP)
(micro SMD)
Quiescent Power Supply Current
Shutdown Current
Output Power
HP Sense high input voltage
HP Sense low input voltage
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Quiescent Power Supply Current
Shutdown Current
Output Power
HP Sense high input voltage
HP Sense low input voltage
Total Harmonic Distortion+Noise
Parameter
Parameter
DD
DD
−0.3V to V
= 5V, A
= 3.3V, A
Internally Limited
−65˚C to +150˚C
DD
DD
V
V
Vshutdown = GND (Note 8)
THD = 2% (max), f = 1kHz,
R
THD = 1% (max), f = 1kHz,
R
P
BW ≤ 80kHz
V
V
V
Vshutdown = GND (Note 8)
THD = 1% (max), f = 1kHz,
R
THD = 1% (max), f = 1kHz,
R
P
BW ≤ 80kHz
(Note 2)
IN
IN
L
L
o
ripple
IN
IN
L
L
o
V
= 0.4 W
= 0.15 W
= 8Ω, HP Sense
= 32Ω, HP Sense
= 8Ω, HP Sense
= 32Ω, HP Sense
= 5V
= 3.3V
DD
= 0V, I
= 0V, I
= 0V, I
= 0V, I
150˚C/W
220˚C/W
= 2, and 8Ω load unless otherwise specified. Limits apply for T
V
35˚C/W
= 200mV sine p-p
2500V
150˚C
= 2, and 8Ω load unless otherwise specified. Limits apply for T
+0.3V
250V
6.0V
o
o
o
o
rms
Conditions
Conditions
= 0A, HP sense = 0V
= 0A, HP sense = 5V
= 0A, HP sense = 0V
= 0A, HP sense = 3.3V
rms
(Notes 1, 2)
; f = 1kHz 10Hz ≤
; f = 1kHz 10Hz ≤
(Notes 1, 2)
3
Operating Ratings
<
<
Soldering Information
See AN-1112 ’microSMD Wafers Level Chip Scale
Package’.
See AN-1187 ’Leadless Leadframe Package (LLP)’.
Temperature Range
Supply Voltage
>
>
θ
θ
θ
T
0.8V
0.8V
JC
JA
JA
4V
3V
MIN
(MSOP)
(LLP)
(MSOP)
≤ T
A
≤ T
MAX
0.1
62 (f =
217Hz) 66 (f
= 1kHz)
(Note 6)
(Note 6)
Typical
Typical
2.5
0.1
3.5
2.0
0.1
0.4
0.1
90
35
4
1
LM4892
LM4892
(Note 7)
(Note 7)
Limit
Limit
0.8
2.6
0.8
10
4
−40˚C ≤ T
2.2V ≤ V
220˚C/W (Note 9)
A
www.national.com
A
= 25˚C.
mA (max)
mA (max)
mA (max)
mA (max)
µA (max)
µA (max)
DD
(Limits)
(Limits)
V (max)
V (max)
V (min)
V (min)
190˚C/W
A
= 25˚C.
Units
Units
56˚C/W
mW
mW
≤ 85˚C
dB
≤ 5.5V
W
%
W
%