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LM4924

Features: 2-cell 1.5V to 3.6V battery operationOCL mode for stereo headphone operationUnity-gain stable Click and pop suppression circuitry for shutdown On and Off transientsActive low micropower shutdownThermal shutdown protection circuitryApplicationPortable two-cell audio productsPortable two-...

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SeekIC No. : 004395893 Detail

LM4924: Features: 2-cell 1.5V to 3.6V battery operationOCL mode for stereo headphone operationUnity-gain stable Click and pop suppression circuitry for shutdown On and Off transientsActive low micropower s...

LM4924 Data Sheet

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Part Number:
LM4924
Supply Ability:
5000

Price Break

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

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Upload time: 2024/5/16

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Product Details

Description



Features:

2-cell 1.5V to 3.6V battery operation
OCL mode for stereo headphone operation
Unity-gain stable
"Click and pop" suppression circuitry for shutdown On and Off transients
Active low micropower shutdown
Thermal shutdown protection circuitry




Application

Portable two-cell audio products
Portable two-cell electronic devices




Pinout

Connection Diagram




Specifications

Power@ 16Ohms, 1% THD 0.04 Watt
THD 0.1 %
PSRR 66 dB
Channels 2 Channels
THD Conditions Po=10mW
PSRR Conditions Vrpi=200Mvpp,Sine,f=100Hz,OCL
User Supply 3 Volt
Shutdown Type Low (Mute)
Supply Range +1.4 - +3.6 V
Exposed DAP Yes
Capless Headphone Yes
Temperature Min -40 deg C
Temperature Max 85 deg C
View Using Catalog


Supply Voltage ......................................................3.8V
Storage Temperature .......................−65°C to +150°C
Input Voltage ................................−0.3V to VDD +0.3V
Power Dissipation (Note 2)................ Internally limited
ESD Susceptibility(Note 3) ..................................2000V
ESD Susceptibility on pin 7, 8, and 9 (Note 3) ........2kV
ESD Susceptibility (Note 4)................................... 200V
Junction Temperature .........................................150°C
Solder Information
Small Outline Package Vapor
Phase (60sec) ..................................................215°C
Infrared (15 sec) ..............................................220°C
See AN-450 "Surface Mounting and their
Effects on Product Reliablilty" for other
methods of soldering surface mount devices.
Thermal Resistance
JA (typ) MUB10A ........................................175°C/W
JA (typ) SDA10A ...........................................73°C/W




Description

The LM4924 is a Output Capacitor-Less (OCL) stereo headphone amplifier, which when connected to a 3.0V supply, delivers 40mW per channel to a 16Ω load with less than 1% THD+N.

With the LM4924 packaged in the MM and SD packages, the customer benefits include low profile and small size. These packages minimizes PCB area and maximizes output power.

The LM4924 features circuitry that reduces output transients ("clicks" and "pops") during device turn-on and turn-off, and Mute On and Off. An externally controlled, low-power consumption, active-low shutdown mode is also included in the LM4924. Boomer audio power amplifiers are designed specifically to use few external components and provide high quality output power in a surface mount packages.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4924MM CMOS8 1 12195 83 0 1410500 3 400233226
LM4924MMX CMOS8 1 12195 83 0 1410500 3 400233226
LM4924SD CMOS8 1 12195 83 0 1410500 3 400233226
LM4924SDX CMOS8 1 12195 83 0 1410500 3 400233226

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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