Features
| | Active-high shutdown mode |
| | LLP, MSOP, and SO surface mount packaging |
| | "Click and Pop" suppression circuitry |
| | Low shutdown current |
| | No bootstrap capacitors required |
| | Unity-gain stable |
Key Specification
THD+N at 1kHz, 105mW continuous average power into 16 |
0.1% (typ) |
THD+N at 1kHz, 70mW continuous average power into 32 |
0.1% (typ) |
Shutdown Current |
0.4µA (typ) |
General Description
The LM4810 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16 load with 0.1% (THD+N) 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. More...
Applications
| | Cellular Phones |
| | Personal Computers |
| | Microphone Preamplifier |
| | PDA's |
|
Typical Application
click for larger image
| Parameters | Values |
| Power@ 8Ohms, 1% THD |
0.15 Watt |
| Power@ 16Ohms, 1% THD |
0.13 Watt |
| Power@ 32Ohms, 1% THD |
0.08 Watt |
| Power@ 8Ohms, 10% THD |
0.18 Watt |
| Power@ 16Ohms, 10% THD |
0.16 Watt |
| Power@ 32Ohms, 10% THD |
0.09 Watt |
| THD |
0.03 % |
| PSRR |
70 dB |
| SNR |
107 dB |
| Channels |
2 Channels |
| THD Conditions |
Po=50mW @ R=32 ohms, f=20Hz to 20kHz |
| PSRR Conditions |
f=1kHz, ter. input into 50 Ohms |
| SNR Conditions |
Po=.08W |
| User Supply |
5 Volt |
| Shutdown Type |
High |
| Supply Range |
+2.0 - +5.5 V |
| Exposed DAP |
Yes |
| Capless Headphone |
No |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
Typical Performance
click for larger image
| |
Also Recommended
| LM4911▲ | External Gain-setting Capability, Ultra Low Current Shutdown And Mute Mode |
Connection Diagram
click for larger image
|
Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
 |
| LM4810 Boomer ® Audio Power Amplifier Series Dual 105mW Headphone Amplifier with Active-High Shutdown Mode |
928 Kbytes |
21-Nov-02 |
Download |
LM4810 Boomer ® Audio Power Amplifier Series Dual 105mW Headphone Amplifier with Active-High Shutdown Mode (Japanese)
 |
598 Kbytes |
|
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Package Availability, Models, Samples & Pricing
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
LM4810LDBD
| LM4811MMBD
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
|
LM4810LDX
| LM4811LD
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
|
LM4810MA
| LM4911MM
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
|
LM4810MAX
| LM4911MM
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
|
General Description
The LM4810 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16 load with 0.1% (THD+N) 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 LM4810 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.
The unity-gain stable LM4810 can be configured by external gain-setting resistors.
The LM4810 features an externally controlled, active-high, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM4810LDX | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
|
LM4810MA | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
|
LM4810MAX | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
|
LM4810MM | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
|
LM4810MMX | CS065 | 2 | 38968 | 52 | 0 | 4402000 | 1 | 1249079519
|
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.
[Information as of 8-Nov-2009]
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