LM4947TL National Semiconductor, LM4947TL Datasheet - Page 5

• Manufacturer Part Number: LM4947TL
• Manufacturer: National Semiconductor

Specifications of LM4947TL

• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Power Supply Requirement: Triple
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 76dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 2.2/2.7V
• Dual Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 25
• Package Type: uSMD
• Lead Free Status / Rohs Status: Not Compliant

I
I
V
P
THD+N
N
DDQ
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 3.3V
The following specifications apply for V
Supply Voltage
Storage Temperature
Input Voltage
ESD Susceptibility (Note 3)
ESD Machine model (Note 6)
Junction Temperature (T
Solder Information
Quiescent Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion Plus
Noise
Output Noise
Parameter
J
)
DD
= 3.3V, T
−65°C to +150°C
−0.3 to V
Output Modes 2, 4, 6
V
OCL = 0 (Table 2)
Output Modes 1, 3, 5, 7
V
OCL = 0 (Table 2)
Output Mode 0
V
V
MONO
THD+N = 1%; f = 1kHz, BTL, Mode 1
R
THD+N = 1%; f = 1kHz, SE, Mode 4
MONO
f = 1kHz, P
R
R
f = 1kHz, P
R
A-weighted, 0dB
inputs terminated, output referred
Speaker; Mode 1
Speaker; Mode 3
Speaker; Mode 5
Speaker; Mode 7
Headphone; SE, Mode 2
Headphone; SE, Mode 4
Headphone; SE, Mode 6
Headphone; OCL, Mode 2
Headphone; OCL, Mode 4
Headphone; OCL, Mode 6
IN
IN
IN
IN
OUT
L
OUT
L
(Note 2)
= 8Ω, BTL, Mode 1
= 32Ω, SE, Mode 4
= 0V; No load,
= 0V; No load, BTL,
= 0V, Mode 7, Mono
= 0V, Mode 7, Headphones
A
and L
and L
DD
(Notes 2, 7)
OUT
= 25°C, and all gains are set for 0dB unless otherwise specified.
150°C
OUT
2.0kV
200V
6.0V
+0.3
; R
OUT
OUT
OUT
OUT
L
; R
= 250mW;
= 12mW;
= 8Ω
Conditions
L
5
= 32Ω
Operating Ratings
Thermal Resistance
θ
Temperature Range
Supply Voltage (V
Supply Voltage (I
Supply Voltage (Loudspeaker V
JA
Vapor Phase (60 sec.)
Infrared (15 sec.)
(typ) - TLA25CBA
2
DD
C)
)
(Note 4)
Typical
0.03
0.02
500
4.5
6.5
0.1
37
39
39
42
38
15
15
17
12
15
17
2
2
LM4947
DD
)
(Note 5)
Limits
400
6.5
15
15
33
8
1
2.7V
2.2V
2.7V
−40°C to 85°C
≤
≤
≤
V
V
V
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DD
DD
DD
mA (max)
mA (max)
mV (max)
mV (max)
mW (min)
mW (min)
µA (max)
(Limits)
65°C/W
Units
≤
≤
≤
215°C
220°C
μV
μV
μV
μV
μV
μV
μV
μV
μV
μV
%
%
5.5V
5.5V
5.5V