Features: Pop & click circuitry eliminates noise during turn-on and turn-off transitions
Low current, active-low shutdown mode
Low quiescent current
Stereo 3.8W output, RL = 4
DC-controlled volume control
Short circuit protectionApplicationFlat Panel Monitors
Flat panel TV's
Computer Sound CardsPinout
Specifications
| Power@ 4Ohms, 1% THD |
3.1 Watt |
| Power@ 4Ohms, 10% THD |
3.8 Watt |
| THD |
0.08 % |
| PSRR |
89 dB |
| Channels |
2 Channels |
| Supply Range |
+9.6 - +16 |
| THD Conditions |
2Wrms, 1kHz, 12V, 4ohm |
| PSRR Conditions |
Vr 200mV, 1kHz, 12V, 4ohm |
| User Supply |
12 Volt |
| Shut down |
Yes |
| Shutdown Type |
Low |
| Mono/Stereo |
Stereo |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
| View Using Catalog |
Supply Voltage (pin 6, referenced to GND, pins 4 and 5) ................18.0V
Storage Temperature................................................... −65°C to +150°C
Input Voltage
pins 4, 6, and 7 ......................................................−0.3V to VDD + 0.3V
pins 1, 2, 3, 8, and 9........................................................ −0.3V to 9.5V
Power Dissipation (Note 3)............................................ Internally limited
ESD Susceptibility (Note 4) .............................................................2000V
ESD Susceptibility (Note 5) ...............................................................200V
Junction Temperature .....................................................................150°C
Thermal Resistance
JC (TS)........................................................................................ 4°C/W
JA (TS) (Note 3)........................................................................ 20°C/WDescriptionThe LM4952 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4 single-ended load with less than 1% THD+N when powered by a 12VDC power supply.
Eliminating external feedback resistors, an internal, DC-controlled, volume control allows easy and variable gain adjustment.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4952 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.
The LM4952 features a low-power consumption active-low shutdown mode. Additionally, the LM4952 features an internal thermal shutdown protection mechanism along with short circuit protection.
The LM4952 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.
More Application Notes
| Title |
Size in Kbytes |
Date |
|
| AN-1441: Application Note 1441 LM4962 Evaluation Board |
840 Kbytes |
20-Apr-06 |
Download |
| AN-1440: Application Note 1440 LM4962 Stereo Ceramic Speaker Driver Application Note |
760 Kbytes |
20-Apr-06 |
Download |
AN-1440 (Chinese): Application Note 1440 LM4962 Stereo Ceramic Speaker Driver Application Note
|
548 Kbytes |
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LM4952 Data Sheet
