LM4857ITLBD National Semiconductor, LM4857ITLBD Datasheet - Page 6

• Manufacturer Part Number: LM4857ITLBD
• Description: BOARD EVALUATION LM4857ITL
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4857ITLBD

• Amplifier Type: Class AB
• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.6W x 2 @ 4 Ohm; 75mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4857
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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I
I
P
THD+N
V
DD
SD
Symbol
O
OS
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Audio Amplifier 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 (T
Thermal Resistance
Supply Current
Shutdown Current
Output Power
Total Harmonic Distortion Plus
Noise
Offset Voltage
Parameter
J
)
DD
Internally Limited
−65˚C to +150˚C
V
LD5 = RD5 = 0 (Note 9)
Mode 1, 6, 11
Mode 4, 5, 9, 10, 14, 15
Mode 2, 3, 7, 8, 12, 13
Output mode 0 (Note 9)
LM4857SP
Speaker; THD+N = 1%;
f = 1kHz; 4Ω BTL
Speaker; THD+N = 1%;
f = 1kHz; 8Ω BTL
Headphone; THD+N = 1%;
f = 1kHz; 32Ω SE
Earpiece; THD+N = 1%;
f = 1kHz; 32Ω BTL, CD4 = 0
Earpiece; THD+N = 1%;
f = 1kHz; 32Ω BTL, CD4 = 1
LD5 = RD5 = 0
Speaker; P
f = 1kHz; 8Ω BTL
Headphone; P
f = 1kHz; 32Ω SE
Earpiece; P
f = 1kHz; 32Ω BTL, CD4 = 0
Line Out, V
f = 1kHz; 5kΩ SE
Speaker; LD5 = RD5 = 0
Earpiece; LD5 = RD5 = 0
= 5.0V, unless otherwise specified. Limits apply for T
IN
−0.3V to V
= 0V, No load;
(Notes 1, 2)
2000V
150˚C
+0.3V
O
O
200V
O
6.0V
= 400mW;
= 1V
= 15mW;
DD
O
Conditions
= 15mW;
RMS
6
;
Operating Ratings
Temperature Range
T
Supply Voltage
MIN
θ
θ
θ
JA
JA
JC
DD
≤ T
(TLA30CZA) (Note 10)
(SPA28A) (Note 12)
(SPA28A)
A
= 5.0V
≤ T
MAX
(Note 6)
Typical
0.009
0.05
0.04
0.05
(Notes 1, 2)
100
135
0.2
1.6
1.2
13
75
6
5
5
5
LM4857
A
= 25˚C.
Limits (Notes
7, 8)
9.5
0.9
2.5V ≤ I
21
60
80
40
30
8
3
−40˚C ≤ T
2.7V ≤ V
2
CV
A
DD
DD
mA (max)
mA (max)
mA (max)
mW (min)
mW (min)
mV (max)
mV (max)
µA (max)
(Limits)
W (min)
≤ +85˚C
62˚C/W
42˚C/W
Units
mW
≤ 5.5V
≤ 5.5V
3˚C/W
W
%
%
%
%