MIC2561-0BM-TR

Power Distribution Switches, Load Drivers

MIC2561-0BM-TR is a low side power distribution switch, load driver designed for a wide range of automotive, consumer and industrial applications. It is a single, low side sense and control power switch capable of driving a variety of loads. Its dual gate technology allows a wide range of simple gate control options. It is designed to control loads such as motors, solenoids, lights, thermoelectric elements and relays.

Application Field

This MIC2561-0BM-TR is suitable for a wide range of automotive, consumer and industrial applications.
In automotive applications, it is widely used in different fields, such as engine management system, intelligent lighting system and tire pressure monitoring systems.
In consumer electronic products, it is widely used in areas such as smart phones, tablets, cameras and wearables.
In industrial applications, they are used in automation systems, service robotic applications, powered tools and pressure gauges.

Working Principle

The MIC2561-0BM-TR is actually a two-channel circuit that controls two separately set current values. The internal circuit of this power switch consists of two parallel MOSFET channels, one of which is a low-side-sense MOSFET, and the other contains the main power driver. The low side sense MOSFET acts as a current sense and temperature sense. It is connected to a Reference voltage source that is connected to ground, such that when a current passes through the sense MOSFET, a voltage drop is generated due to the sensed current. This voltage drop is used to control the main power driver MOSFET, which is connected to the load.

The main power driver MOSFET is controlled by a driving signal, which is generated by a two-stage gate configuration. The first stage is a voltage control section, which is responsible for setting the current level of the drive signal. The second stage is a current control section, which is responsible for controlling the gate of the main power driver MOSFET. The voltage control section is responsible for setting the current level by applying a voltage to the gate of the MOSFET. The current control section is responsible for controlling the gate of the main power driver MOSFET by sensing the voltage drop due to the current flow.

Overall, the MIC2561-0BM-TR is a highly efficient power switch and load driver. Its dual gate configuration allows for a wide range of power control options. It is capable of driving a variety of loads and is suitable for a wide range of applications. Its low power consumption and high efficiency make it an ideal choice for automotive, consumer and industrial applications.