LM48100Q-Q1 Series

1.3-W, mono, analog input Class-AB audio amplifier with output fault detection

Catalog

1.3-W, mono, analog input Class-AB audio amplifier with output fault detection

Part	Type	Max Output Power x Channels @ Load	Max Output Power x Channels @ Load [x]	Package / Case	Package / Case [y]	Package / Case [x]	Output Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Grade	Qualification	Features
Texas Instruments LM48100QMHE/NOPB	Class AB	1.6 W	1	14-PowerTSSOP	4.4 mm	0.173 in	1-Channel (Mono)	5.5 V	3 V	Surface Mount	105 °C	-40 °C	14-HTSSOP	Automotive	AEC-Q100	Depop I2C Input Multiplexer Short-Circuit and Thermal Protection Shutdown Volume Control
Texas Instruments LM48100QMHX/NOPB	Class AB	1.6 W	1	14-PowerTSSOP	4.4 mm	0.173 in	1-Channel (Mono)	5.5 V	3 V	Surface Mount	105 °C	-40 °C	14-HTSSOP	Automotive	AEC-Q100	Depop I2C Input Multiplexer Short-Circuit and Thermal Protection Shutdown Volume Control
Texas Instruments LM48100QMH/NOPB	Class AB	1.6 W	1	14-PowerTSSOP	4.4 mm	0.173 in	1-Channel (Mono)	5.5 V	3 V	Surface Mount	105 °C	-40 °C	14-HTSSOP	Automotive	AEC-Q100	Depop I2C Input Multiplexer Short-Circuit and Thermal Protection Shutdown Volume Control

Catalog

1.3-W, mono, analog input Class-AB audio amplifier with output fault detection

Key Features

• Output Fault DetectionI2C Volume and Mode ControlInput Mixer and MultiplexerHigh PSRRIndividual 32-Step Volume ControlShort Circuit and Thermal ProtectionAdvanced Click-and-Pop SuppressionLow-Power Shutdown ModeAvailable in 14-Pin HTSSOP PackageKey Specifications:Output Power at VDD= 5 V, RL= 8 Ω,THD+N ≤ 1% 1.3 W (Typical)Quiescent Power Supply Current at 5 V,6 mA (Typical)PSRR at 1 kHz 74 dB (Typical)Shutdown current 0.01 µA (Typical)Output Fault DetectionI2C Volume and Mode ControlInput Mixer and MultiplexerHigh PSRRIndividual 32-Step Volume ControlShort Circuit and Thermal ProtectionAdvanced Click-and-Pop SuppressionLow-Power Shutdown ModeAvailable in 14-Pin HTSSOP PackageKey Specifications:Output Power at VDD= 5 V, RL= 8 Ω,THD+N ≤ 1% 1.3 W (Typical)Quiescent Power Supply Current at 5 V,6 mA (Typical)PSRR at 1 kHz 74 dB (Typical)Shutdown current 0.01 µA (Typical)

Description

The LM48100Q-Q1 is a single supply, mono, bridge-tied load amplifier with I2C 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 5-V supply, the LM48100Q-Q1 delivers 1.3 W of continuous output power to an 8 Ω load with < 1% THD+N. Flexible power supply requirements allow operation from 3 V to 5.5 V. High power supply rejection ratio (PSRR), 74 dB at 1 kHz, allows the device to operate in noisy environments without additional power supply conditioning. The LM48100Q-Q1 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 I2C compatible interface. An open drainFAULToutput 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 0.01 µA. Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48100Q-Q1 is available in an 14-pin HTSSOP PowerPAD™ IC package. The LM48100Q-Q1 is a single supply, mono, bridge-tied load amplifier with I2C 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 5-V supply, the LM48100Q-Q1 delivers 1.3 W of continuous output power to an 8 Ω load with < 1% THD+N. Flexible power supply requirements allow operation from 3 V to 5.5 V. High power supply rejection ratio (PSRR), 74 dB at 1 kHz, allows the device to operate in noisy environments without additional power supply conditioning. The LM48100Q-Q1 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 I2C compatible interface. An open drainFAULToutput 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 0.01 µA. Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48100Q-Q1 is available in an 14-pin HTSSOP PowerPAD™ IC package.