LM4855ITLX National Semiconductor, LM4855ITLX Datasheet - Page 3

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LM4855ITLX

Manufacturer Part Number
LM4855ITLX
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of LM4855ITLX

Operational Class
Class-AB
Audio Amplifier Output Configuration
1-Channel Mono/2-Channel Stereo
Audio Amplifier Function
Headphone/Speaker
Total Harmonic Distortion
0.5@8Ohm@400mW%
Single Supply Voltage (typ)
3V
Dual Supply Voltage (typ)
Not RequiredV
Supply Current (max)
12@5VmA
Power Supply Requirement
Single
Rail/rail I/o Type
No
Power Supply Rejection Ratio
62dB
Single Supply Voltage (min)
2.6V
Single Supply Voltage (max)
5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
18
Package Type
uSMD
Lead Free Status / Rohs Status
Not Compliant

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I
I
V
P
THD+N
N
DD
SD
Symbol
OS
O
OUT
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
The following specifications apply for V
Supply Voltage
Storage Temperature
ESD Susceptibility (Note 4)
ESD Machine model (Note 7)
Junction Temperature (T
Solder Information (Note 1)
Thermal Resistance
Vapor Phase (60 sec.)
Infrared (15 sec.)
Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion Plus
Noise
Output Noise
Parameter
J
)
DD
−65˚C to +150˚C
= 5.0V, T
(Notes 3, 8)
Output mode 1
V
Output mode 1
V
Output modes 2, 3, 4, 5, 6, 7
V
Output modes 2, 3, 4, 5, 6, 7
V
Output mode 0
V
SPKR
THD+N = 1%; f = 1kHz, LM4855LQ
SPKR
THD+N = 1%; f = 1kHz
R
THD+N = 0.5%; f = 1kHz
SPKR
f = 20Hz to 20kHZ
P
R
f = 20Hz to 20kHZ
P
A-weighted (Note 10)
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
(Note 2)
= 0V; No loads
= 0V; Loaded (Fig.1)
= 0V; No loads
= 0V; Loaded (Fig. 1)
= 0V
= 400mW; R
= 50mW; R
OUT
OUT
and L
OUT
and L
A
150˚C
215˚C
220˚C
= 25˚C unless otherwise specified.
2.0kV
200V
6.0V
; R
; R
OUT
OUT
L
L
= 4Ω
= 8Ω
Conditions
; R
L
3
L
L
= 32Ω
= 32Ω
= 8Ω
Operating Ratings
Note 1: See AN-450 "Surface Mounting and their effects on Product Reli-
ability" for other methods of soldering surface mount devices.
Temperature Range
Supply Voltage V
θ
θ
θ
θ
θ
θ
JA
JC
JA
JC
JA
JC
(typ) - LQA24A
(typ) - LQA24A
(typ) - BLA18AAB
(typ) - BLA18AAB
(typ) - TLA18AAA
(typ) - TLA18AAA
DD
(Note 5)
Typical
115
5.7
6.7
7.5
8.5
0.1
5.0
1.5
1.1
0.5
0.5
29
LM4855
(Note 3)
(Note 6)
Limits
2.0
0.8
11
12
40
70
8
9
2.6V ≤ V
48˚C/W (Note 9)
23˚C/W (Note 9)
48˚C/W (Note 9)
23˚C/W (Note 9)
−40˚C to 85˚C
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DD
mA (max)
mA (max)
mA (max)
mA (max)
mV (max)
mW (min)
µA (max)
(Limits)
W (min)
3.0˚C/W
42˚C/W
Units
≤ 5.0V
µV
W
%
%

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