LM4938MHX/NOPB National Semiconductor, LM4938MHX/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM4938MHX/NOPB
• Description: IC AMP AUDIO PWR 2.2W AB 28TSSOP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4938MHX/NOPB

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.2W x 2 @ 3 Ohm; 92mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Bass Boost, Depop, Mute, Shutdown, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Total Harmonic Distortion: 0.05@8Ohm@400mW%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 78dB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -20C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 28
• Package Type: TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4938MHX

V
I
I
V
V
C
A
V
DD
SD
Symbol
DD
IH
IL
Symbol
M
OS
RANGE
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics for Entire IC
The following specifications apply for V
Electrical Characteristics for Volume Attenuators
The following specifications apply for V
Electrical Characteristics for Bridged Mode Operation
The following specifications apply for V
Symbol
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 11)
ESD Susceptibility (Note 12)
ESD Susceptibility (Note 13)
Junction Temperature
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
Infrared (15 sec.)
Supply Voltage
Quiescent Power Supply Current
Shutdown Current
Headphone Sense High Input Voltage
Headphone Sense Low Input Voltage
Attenuator Range
Mute Attenuation
Output Offset Voltage
Parameter
Parameter
Parameter
−0.3V to V
DD
DD
DD
-65˚C to +150˚C
Internally limited
= 5V unless otherwise noted. Limits apply for T
= 5V. Limits apply for T
= 5V, unless otherwise noted. Limits apply for T
(Note 10)
DD
V
V
V
Gain accuracy with V
No Load
Gain accuracy with V
No Load
Attenuation with V
(BM & SE)
V
V
IN
2000V
IN
shutdown
mute
mute
150˚C
215˚C
220˚C
+0.3V
200V
= 0V, No Load
6.0V
= 0V, I
= 5V, Bridged Mode (BM)
= 5V, Single-Ended Mode (SE)
= V
O
Conditions
3
= 0A
(Notes 7, 10)
DD
Conditions
Conditions
A
Operating Ratings
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering surface
mount devices.
θ
θ
θ
θ
θ
Temperature Range
Supply Voltage
= 25˚C.
JC
JA
JA
JA
JA
DCVol
T
MIN
(typ) - MXA28A (exposed DAP) (Note 3)
(typ) - MXA28A (exposed DAP) (Note 4)
(typ) - MXA28A (exposed DAP) (Note 5)
(typ) - MXA28A (exposed DAP) (Note 6)
(typ) - MXA28A
DCVol
DCVol
= 0V
≤ T
= 5V,
<
A
≤T
0.5V,
MAX
(Notes 7, 10)
A
(Note 14)
A
Typical
(Notes 7, 10)
= 25˚C.
= 25˚C.
(Note 14)
(Note 14)
Typical
Typical
5
±
0.5
±
11
89
89
0.5
LM4938
2
LM4938
LM4938
(Note 15)
(Note 15)
(Note 15)
Limit
±
−20˚C ≤TA ≤ 85˚C
±
Limit
Limit
2.7V≤ V
50
2.7
5.5
2.0
0.8
0.75
30
75
78
78
4
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DD
V (min)
V (max)
mV (max)
41˚C/W
54˚C/W
59˚C/W
93˚C/W
mA (max)
(Limits)
µA (max)
dB (max)
dB (max)
dB (min)
dB (min)
dB (min)
(Limits)
(Limits)
≤ 5.5V
V (max)
2˚C/W
V (min)
Units
Units
Units