LM4855LQBD National Semiconductor, LM4855LQBD Datasheet - Page 3

• Manufacturer Part Number: LM4855LQBD
• Description: BOARD EVALUATION LM4855LQ
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4855LQBD

• Amplifier Type: Class AB
• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.5W x 1 @ 4 Ohms; 115mW x 2 @ 32 Ohms
• Voltage - Supply: 2.6 V ~ 5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4855
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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
%
%