L5955

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Applications:	Converter, Car Audio System
Voltage - Input:	--
Number of Outputs:	1
Voltage - Output:	Multiple
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	27-Flexiwatt (Formed Leads)
Supplier Device Package:	27-Flexiwatt (Vertical)
Base Part Number:	L5955

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PMIC - Voltage Regulators - Special Purpose

The integrated circuit of the L5955 Stereo Power Amplifier (SP) is specially designed for automotive applications. This integrated circuit is capable of providing power to/from a wide range of devices including car audio players, car navigation systems, radar detectors, and other automotive devices. It is capable of delivering power up to 15A.The most significant features that the L5955 has are a high efficiency, wide input voltage range of 2.4V to 36V, comprehensive protection capabilities, and a low quiescent current of 6mA. All these features make the L5955 ideal for automotive power applications.The L5955 consists of four main parts: drive, boost regulator, power amplifier, and power supply. The drive consists of an external FET followed by a Sense FET. The Sense FET is used as a current-sense diode to detect the current and provide feedback to the current linear regulator. The boost regulator receives the voltage from the drive, steps it up, and then provides it to the power amplifier module. The power amplifier module is the heart of the device, providing amplification and power conversion. Finally, the power supply provides the necessary power to the system.The working principle of the L5955 is quite simple. All the sections of the ICs are connected by one common power source. When the current is sent through the Sense FET and it detects a drop in the voltage, the power amplifier, boost regulator and the drive module produces a voltage output to the common power source. The current linear regulator then regulates the output voltage and delivers the power according to the requirements of the system.The L5955 is not only suitable for automotive applications but for a variety of other related tasks as well. Its wide input voltage range, high efficiency and comprehensive protection capabilities make it a good choice for medium-power applications like portable radios, home theater systems, radios, and TV sets. It is also suitable for powering security systems, geophysical exploration systems, GPS systems, and other high power applications. The L5955 is also ideal for medium-power motor control applications such as vehicle navigation systems and automotive navigation systems.In conclusion, the L5955 is a powerful and versatile integrated circuit with a wide input voltage range, high efficiency and comprehensive protection capabilities, making it perfect for automotive and other related applications. It is capable of delivering up to 15A of current, which is more than enough for medium-power applications such as GPS systems and home theater systems. Whenused in automotive applications, it can be used to power audio players, navigation systems, and other devices.

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