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Details, datasheet, quote on part number:LM4878IBP
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| Part: | LM4878IBP |
| Category: | Multimedia => Audio => Amplifiers => Power Amplifiers => Boomer Audio Power Amplifiers |
| Description: | LM4878 - 1 Watt Audio Power Amplifier in Micro SMD Package With Shutdown Logic Low, Package: Microsmd, Pin Nb=8 |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM4878IBP datasheet File size : 527 kB |
| Request For quote: | Find where to buy LM4878IBP
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Datasheet text preview:
LM4878 1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low
October 2002
LM4878 1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low
General Description
The LM4878 is a bridge-connected audio power amplifier capable of delivering 1 W of continuous average power to an 8 load with less than .2% (THD) 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 LM4878 does not require output coupling capacitors or bootstrap capacitors. It is optimally suited for low-power portable applications. The LM4878 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4878 can be configured by external gain-setting resistors.
Key Specifications
j Power Output at 0.2% THD j Shutdown Current
1 W (typ) 0.01 µA (typ)
Features
n n n n n n Internal pulldown resistor on shutdown. micro SMD package (see App. note AN-1112) 5V - 2V operation No output coupling capacitors or bootstrap capacitors. Unity-gain stable External gain configuration capability
Applications
n Cellular Phones n Portable Computers n Low Voltage Audio Systems
Typical Application
10136001
FIGURE 1. Typical Audio Amplifier Application Circuit
Boomer ® is a registered trademark of National Semiconductor Corporation.
© 2002 National Semiconductor Corporation
DS101360
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LM4878
Connection Diagrams
8 Bump micro SMD
10136023
Top View Order Number LM4878IBP, LM4878IBPX See NS Package Number BPA08B6B micro SMD Marking
10136036
Top View X - Date Code T - Die Traceability G - Boomer Family D - LM4878IBP
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LM4878
Absolute Maximum Ratings
(Note 2)
Soldering Information See AN-1112 'Micro-SMD Wafers Level Chip Scale Package'.
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Storage Temperature Input Voltage Power Dissipation (Note 3) ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) Junction Temperature 6.0V -65°C to +150°C -0.3V to VDD +0.3V Internally Limited 2500V 250V 150°C
Operating Ratings
Temperature Range TMIN TA TMAX Supply Voltage -40°C TA 85°C 2.0V VDD 5.5V
Electrical Characteristics VDD = 5V (Notes 1, 2, 9) The following specifications apply for VDD = 5V and 8 Load unless otherwise specified. Limits apply for TA = 25°C.
LM4878 Symbol VDD IDD ISD VOS Po THD+N PSRR Parameter Supply Voltage Quiescent Power Supply Current Shutdown Current Output Offset Voltage Output Power Total Harmonic Distortion+Noise Power Supply Rejection Ratio VIN = 0V, Io = 0A VPIN5 = 0V VIN = 0V THD = 0.2% (max); f = 1 kHz Po = 0.25 Wrms; AVD = 2; 20 Hz f 20 kHz VDD = 4.9V to 5.1V 5.3 0.01 5 1 0.1 65 Conditions Typical (Note 6) Limit (Note 7) 2.0 5.5 7 2 50 Units (Limits) V (min) V (max) mA (max) µA (max) mV (max) W % dB
Electrical Characteristics VDD = 3.3V (Notes 1, 2, 9) The following specifications apply for VDD = 3.3V and 8 Load unless otherwise specified. Limits apply for TA = 25°C.
LM4878 Symbol VDD IDD ISD VOS Po THD+N PSRR Parameter Supply Voltage Quiescent Power Supply Current Shutdown Current Output Offset Voltage Output Power Total Harmonic Distortion+Noise Power Supply Rejection Ratio VIN = 0V, Io = 0A VPIN5 = 0V VIN = 0V THD = 1% (max); f = 1 kHz Po = 0.25 Wrms; AVD = 2; 20 Hz f 20 kHz VDD = 3.2V to 3.4V 4 0.01 5 .5 0.15 65 .45 Conditions Typical (Note 6) Limit (Note 7) 2.0 5.5 Units (Limits) V (min) V (max) mA (max) µA (max) mV (max) W % dB
Electrical Characteristics VDD = 2.6V (Notes 1, 2, 8, 9) The following specifications apply for VDD = 2.6V and 8 Load unless otherwise specified. Limits apply for TA = 25°C.
LM4878 Symbol VDD IDD ISD Parameter Supply Voltage Quiescent Power Supply Current Shutdown Current VIN = 0V, Io = 0A VPIN5 = 0V 3.4 0.01 Conditions Typical (Note 6) Limit (Note 7) 2.0 5.5 Units (Limits) V (min) V (max) mA (max) µA (max)
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