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LM4960

Features: · Stereo BTL amplifier· Low current shutdown mode· Click and pop suppression circuitry· Low Quiescent current· Unity-gain stable audio amplifiers· External gain configuration capability· Thermal shutdown protection circuitry· Wide input voltage range (3.0V - 7V)· 1.6MHz switching frequ...

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SeekIC No. : 004395918 Detail

LM4960: Features: · Stereo BTL amplifier· Low current shutdown mode· Click and pop suppression circuitry· Low Quiescent current· Unity-gain stable audio amplifiers· External gain configuration capability·...

LM4960 Data Sheet

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Part Number:
LM4960
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

· Stereo BTL amplifier
· Low current shutdown mode
· "Click and pop" suppression circuitry
· Low Quiescent current
· Unity-gain stable audio amplifiers
· External gain configuration capability
· Thermal shutdown protection circuitry
· Wide input voltage range (3.0V - 7V)
· 1.6MHz switching frequency




Application

` Mobile phone
` PDA's




Specifications

Supply Voltage (VDD) .............................8.5V
Supply Voltage (V1)
(Pin 27 referred to GND)............................ 18V
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
JA (LLP) ..................................°C/W
See AN-1187 'Leadless Leadframe Packaging (LLP).'

Voltage@ Vcc=3V, 1% THD 24 Volt
Voltage@ Vcc=5V, 1%THD 24 Volt
Voltage@ Vcc=3V, 10% THD 27 Volt
Voltage@ Vcc=5V, 10% THD 27 Volt
Load Conditions 800nF+20ohm
Supply Min 3.0 Volt
Supply Max 7.0 Volt
THD 0.04 %
THD Conditions Vout=3Vrms at Vcc=3V
Shutdown Type Low
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Description

The LM4960 utilizes a switching regulator to drive a dual audio power amplifier. It delivers 24VP-P mono-BTL to a ceramic speaker with less than 1.0% THD+N while operating on a 3.0V power supply.

The LM4960's switching regulator is a current-mode boost converter operating at a fixed frequency of 1.6MHz.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4960 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4960 features a low-power consumption externally controlled micropower shutdown mode. Additionally, the LM4960 features and internal thermal shutdown protection mechanism along with a short circuit protection.

The LM4960 is unity-gain stable and can be configured by external gain-setting resistors.






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