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LM4911

Features: OCL or capacitively coupled outputs (patent pending)V External gain-setting capability Available in space-saving MSOP package Ultra low current shutdown mode Mute mode allows fast turn-on (1ms) with less than 1mV change on outputs2V - 5.5V operation Ultra low noiseApplicationPortable CD...

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SeekIC No. : 004395878 Detail

LM4911: Features: OCL or capacitively coupled outputs (patent pending)V External gain-setting capability Available in space-saving MSOP package Ultra low current shutdown mode Mute mode allows fast turn-on...

LM4911 Data Sheet

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Part Number:
LM4911
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

OCL or capacitively coupled outputs (patent pending)
V External gain-setting capability
Available in space-saving MSOP package
Ultra low current shutdown mode
Mute mode allows fast turn-on (1ms) with less than 1mV change on outputs
2V - 5.5V operation
Ultra low noise




Application

Portable CD players
PDAs
Portable electronics devices




Pinout

Connection Diagram




Specifications

Power@ 16Ohms, 1% THD 0.145 Watt
Power@ 32Ohms, 1% THD 0.085 Watt
Power@ 16Ohms, 10% THD 0.15 Watt
Power@ 32Ohms, 10% THD 0.11 Watt
PSRR 65 dB
SNR 110 dB
Channels 2 Channels
PSRR Conditions f=1 kHz
SNR Conditions Po=.048W
User Supply 5 Volt
Shutdown Type Low (Mute)
Supply Range +2.0 - +5.5 V
Exposed DAP Yes
Capless Headphone Yes
Temperature Min -40 deg C
Temperature Max 85 deg C
View Using Catalog


Supply Voltage6.0V
Storage Temperature -65˚C to +150˚C
Input Voltage -0.3V to VDD + 0.3V
Power Dissipation (Note 3)Internally Limited
ESD Susceptibility (Note 4)2000V
ESD Susceptibility (Note 5) 200V
Junction Temperature 150˚C
Thermal Resistance
JC (MSOP) 56˚C/W
JA (MSOP) 190˚C/W




Description

The LM4911 is an stereo audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω load or 25mW per channel into a 32Ω load at 1% THD+N from a 3V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4911 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. In addition, the LM4911 may be configured for either single-ended capacitively coupled outputs or for OCL outputs (patent pending).

The LM4911 features a low-power consumption shutdown mode and a power mute mode that allows for faster turn on time with less than 1mV voltage change at outputs on release. Additionally, the LM4911 features an internal thermal shutdown protection mechanism.

The LM4911 is unity gain stable and may be configured with external gain-setting resistors.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4911LD CMOS7 0 16561 0 0 954000 4 270700104
LM4911LDX CMOS7 0 16561 0 0 954000 4 270700104
LM4911MM CMOS7 0 16561 0 0 954000 4 270700104
LM4911MMX CMOS7 0 16561 0 0 954000 4 270700104

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.







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