BTS6144P

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BTS6144P Application Field and Working Principle

The BTS6144P is a member of STMicroelectronics\' family of low-side protected load switch ICs designed to distribute power and control the current load in automotive and industrial applications. This device is classified as a Power Distribution Switches, Load Drivers in the PMIC (Power Management Integrated Circuits) segment. The BTS6144P offers high input voltage tolerance up to 60V, reverse voltage protection, ultra-low quiescent current, and temperature protection.

Features and Benefits

In automotive and industrial application designs, the BTS6144P is ideal for use when a large amount of power must be quickly distributed to various systems or devices. The device offers a number of advantages, including:

• High-efficiency operation due to integrated internal bypass protection.
• Ultra-low quiescent current of only 8µA, resulting in significant power savings.
• Integrated temperature protection which prevents device damage in case of high temperatures.
• High input voltage tolerance of up to 60V.
• Quasi-frequency operation with switching frequency up to 1.2MHz.
• Reverse voltage protection.

Applications

The BTS6144P is ideal for use in a wide range of automotive and industrial applications, including:

• Battery-powered vehicles.
• Industrial automation.
• Equipment control.
• Load switching.
• Power distribution.
• Automotive safety related systems.

Working Principle

The BTS6144P is a 4-channel low-side protected load switch IC designed to distribute power and control the current load in automotive and industrial applications. The device consists of four channels that are independently controlled by four externally driven logic level signals. Each channel has an output stage with a series connection of P-channel MOSFETs, a fast protection circuit, a reverse voltage protection circuit, and an over-temperature protection circuit. These protection and control circuits ensure that the BTS6144P has a high level of protection when operating at high input voltages, high temperatures, and in reverse voltage mode.

The BTS6144P’s low on-resistance of the output transistors allow for a wide range of load current management options. When a logic level signal is applied to the gate of the P-channel output MOSFET, a path for current between the high and low-side pins is established. This allows for the controlled distribution of power from the supply voltage through the device.

In addition to the load switch function, the BTS6144P also features an integrated temperature protection circuit which prevents device damage in case of high temperatures. This protection circuit works by comparing the internal temperature of the device with an internal reference temperature and toggling the output switch off if temperatures increase beyond the reference temperature.

The BTS6144P is part of the STMicroelectronics\' family of advanced low-side protected load switch ICs for automotive and industrial applications. With its high input voltage tolerance, integrated temperature protection circuit, ultra-low quiescent current, and reverse voltage protection, the BTS6144P is a reliable, cost-effective solution for distributing power and controlling current load in a variety of automotive and industrial applications.

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