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LM4862 Datasheet Preview

LM4862 Datasheet

675mW Audio Power Amplifier

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LM4862
www.ti.com
SNAS102F – MAY 1997 – REVISED MAY 2013
LM4862
675 mW Audio Power Amplifier with Shutdown
Mode
Check for Samples: LM4862
FEATURES
1
2 No Output Coupling Capacitors, Bootstrap
Capacitors or Snubber Circuits are Necessary
• Small Outline or PDIP Packaging
• Unity-Gain Stable
• External Gain Configuration Capability
• Pin Compatible with LM4861
APPLICATIONS
• Portable Computers
• Cellular Phones
• Toys and Games
KEY SPECIFICATIONS
• THD+N for 500mW Continuous Average
Output Power at 1kHz into 81% (max)
• Output Power at 10% THD+N at 1kHz into 8Ω
825 mW (typ)
• Shutdown Current 0.7μA (typ)
DESCRIPTION
The LM4862 is a bridge-connected audio power
amplifier capable of delivering typically 675mW of
continuous average power to an 8Ω load with 1%
THD+N from a 5V power supply.
Boomer audio power amplifiers were designed
specifically to provide high quality output power with a
minimal amount of external components. Since the
LM4862 does not require output coupling capacitors,
bootstrap capacitors, or snubber networks, it is
optimally suited for low-power portable systems.
The LM4862 features an externally controlled, low-
power consumption shutdown mode, as well as an
internal thermal shutdown protection mechanism.
The unity-gain stable LM4862 can be configured by
external gain-setting resistors.
Typical Application
Connection Diagram
*Refer to Application Information for information concerning proper
selection of the input coupling capacitor.
Figure 1. Typical Audio Amplifier Application
Circuit
Figure 2. Small Outline and PDIP Package-Top
View
See Package Number D0008A or P0008E
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1997–2013, Texas Instruments Incorporated




etcTI

LM4862 Datasheet Preview

LM4862 Datasheet

675mW Audio Power Amplifier

No Preview Available !

LM4862
SNAS102F – MAY 1997 – REVISED MAY 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings(1)(2)
Supply Voltage
6.0V
Storage Temperature
65°C to +150°C
Input Voltage
Power Dissipation(3)
ESD Susceptibility(4)
ESD Susceptibility(5)
0.3V to VDD + 0.3V
Internally limited
2000V
200V
Junction Temperature
150°C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
215°C
Infrared (15 sec.)
220°C
Thermal Resistance
θJC (typ)—D0008A
θJA (typ)—D0008A
θJC (typ)—P0008E
θJA (typ)—P0008E
35°C/W
170°C/W
37°C/W
107°C/W
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications
(3) The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature
TA. The maximum allowable power dissipation is PDMAX = (TMAX TA)/θJA. For the LM4862, TJMAX = 150°C. The typical junction-to-
ambient thermal resistance, when board mounted, is 170°C/W for package number D0008A and is 107°C/W for package number
P0008E.
(4) Human body model, 100 pF discharged through a 1.5 kΩ resistor.
(5) Machine Model, 200 pF–240 pF discharged through all pins.
Operating Ratings
Temperature Range
Supply Voltage
TMIN TA TMAX
40°C TA 85°C
2.7V VDD 5.5V
2
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Product Folder Links: LM4862
Copyright © 1997–2013, Texas Instruments Incorporated



Part Number LM4862
Description 675mW Audio Power Amplifier
Maker etcTI
Total Page 3 Pages
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LM4862 Datasheet PDF





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