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LM4840 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM4840
Description  Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4840 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 10)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
-65˚C to +150˚C
Input Voltage
−0.3V to V
DD +0.3V
Power Dissipation
Internally limited
ESD Susceptibility (Note 12)
2000V
ESD Susceptibility (Note 13)
200V
Junction Temperature
150˚C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering
surface mount devices.
See AN-1187 “Leadless Leadframe Package” for
detailed information on usage of LLP devices.
θ
JC (typ) — LQA028A (Note
16)
3˚C/W
θ
JA (typ) — LQA028A (Note
16)
42˚C/W
θ
JC (typ) — MTC28
20˚C/W
θ
JA (typ) — MTC28
80˚C/W
θ
JC (typ) — MXA28A
2˚C/W
θ
JA (typ) — MXA28A (Note 4)
41˚C/W
θ
JA (typ) — MXA28A (Note 3)
54˚C/W
θ
JA (typ) — MXA28A (Note 5)
59˚C/W
θ
JA (typ) — MXA28A (Note 6)
93˚C/W
Operating Ratings
Temperature Range
T
MIN ≤ TA ≤TMAX
−40˚C
≤TA ≤ 85˚C
Supply Voltage
2.7V
≤ V
DD ≤ 5.5V
Electrical Characteristics for Entire IC
(Notes 7, 10)
The following specifications apply for V
DD = 5V unless otherwise noted. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4840
Units
(Limits)
Typical
(Note 14)
Limit
(Note 15)
V
DD
Supply Voltage
2.7
V (min)
5.5
V (max)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A
12
30
mA (max)
I
SD
Shutdown Current
V
SHUTDOWN =VDD
0.7
2.0
µA (max)
V
IH
Headphone Sense High Input Voltage
4
V (min)
V
IL
Headphone Sense Low Input Voltage
0.8
V (max)
Electrical Characteristics for Volume Attenuators
(Notes 7, 10)
The following specifications apply for V
DD = 5V. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4840
Units
(Limits)
Typical
(Note 14)
Limit
(Note 15)
C
RANGE
Attenuator Range
Gain with Digital Volume Max
0
±0.5
dB (max)
Attenuation with Digital Volume Min
-81
-75
dB (min)
A
M
Mute Attenuation
V
MUTE =VDD, Bridged Mode
-88
-78
dB (min)
V
MUTE =VDD, Single-Ended Mode
-88
-78
dB (min)
Electrical Characteristics for Single-Ended Mode Operation
(Notes 7, 10)
The following specifications apply for V
DD = 5V. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4840
Units
(Limits)
Typical
(Note 14)
Limit
(Note 15)
P
O
Output Power
THD = 1.0%; f = 1kHz; R
L =32Ω
85
mW
THD=10%;f=1 kHz; R
L =32Ω
95
mW
www.national.com
3


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