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LM48100Q -
Mono, 1.3W Audio Power Amplifier with Output Fault Detection and Volume Control from the PowerWise® Family
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Features
| • | Output Fault Detection |
| • | I
2C Volume and Mode Control
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| • | Input Mixer/Multiplexer |
| • | High PSRR |
| • | Individual 32-Step Volume Control |
| • | Short Circuit and Thermal Protection |
| • | Advanced Click-and-Pop Suppression |
| • | Low Power Shutdown Mode |
| • | Available in 14-pin TSSOP Package |
Key Specification
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Output Power at VDD = 5V,
RL = 8Ω, THD+N
≤ 1%
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1.3W (typ)
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Quiescent Power Supply Current
at 5V
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6mA (typ)
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PSRR at 1kHz
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74dB (typ)
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Shutdown current
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0.01μA (typ)
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General Description
The LM48100Q is a single supply, mono, bridge-tied load amplifier with I
2C volume control, ideal for automotive applications. More...
Applications
| • | Automotive Instrument Clusters |
| • | Hands-free Car Kits |
| • | Medical |
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Typical Application
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Parametric Table
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Parametric Table
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Typical Performance
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Connection Diagram
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Datasheet
Package Availability, Models, Samples & Pricing
General Description
The LM48100Q is a single supply, mono, bridge-tied load amplifier with I
2C volume control, ideal for automotive applications. A comprehensive output fault detection system senses the load conditions,
protecting the device during short circuit events, as well as detecting open circuit conditions.
Operating from a single 5V supply, the LM48100Q delivers 1.3W of continuous output power to an 8Ω load with < 1% THD+N. Flexible
power supply requirements allow operation from 3.0V to 5.5V. High power supply rejection ratio (PSRR), 74dB at 1kHz, allows
the device to operate in noisy environments without additional power supply conditioning.
The LM48100Q features dual audio inputs that can be mixed/multiplexed to the device output. Each input path has its own independent,
32-step volume control. The mixer, volume control and device mode select are controlled through an I
2C compatible interface. An open drain
^FAULT output indicates when a fault has occurred. Comprehensive output short circuit and thermal overload protection prevent the
device from being damaged during a fault condition.
A low power shutdown mode reduces supply current consumption to 0.01µA. Superior click and pop suppression eliminates audible
transients on power-up/down and during shutdown. The LM48100Q is available in an 14-pin TSSOP package
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
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LM48100QMH | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104
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LM48100QMHE | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104
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LM48100QMHX | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104
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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 4-Jul-2009]
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RoHS Compliance Information
