FM4MMB1085MPNNE

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The FM4MMB1085MPNNE is a family of DC/DC step-down controllers for automotive applications, which integrates two low-side MOSFETS with very low on-resistance. This enables high-efficient conversion of merged coils with very low inductance levels for enhanced thermal conductivity as well as low EMI noise. The design also optimizes PCB design, allowing for the incorporation of additional components such as ripple filters and fast diodes.

The FM4MMB1085MPNNE provides an adjustable 0.85-3.4V output voltage, supporting a wide range of automotive applications. It is optimized for low power consumption, with a 400mV start-up threshold voltage, an ultra-low on-resistance of 0.066Ω and 100mA minimum output current capacity. The controller also features a wide-ranging operating temperature range of -40°C to 125°C for reliable performance even in harsh environments.

The FM4MMB1085MPNNE is designed to reduce audible noise generation, meeting the standard ISO5B requirement of 35W/m2 for audible noise. It also employs an over-current protection (OCP) circuit with a cycle-by-cycle limit, as well as an over-temperature protection (OTP) circuit with a thermal shutdown mechanism. These features ensure safe and reliable operation as well as improved system stability.

The FM4MMB1085MPNNE can provide power for many automotive electronics, including onboard audio components and GPS systems. It is widely used in automotive audio systems, car navigation systems, driving assistance systems, instrument panels and other automotive applications. The device is also a reliable power supply for battery-operated sensors, which are used for monitoring applications in automotive factories and warehouses.

The FM4MMB1085MPNNE uses a modified peak current-mode control technique. This control technique, combined with the wide range of adjustable voltage settings, helps to ensure a wide operating range as well as improved system stability and robustness. The controller also provides additional features such as soft-start, overload protection and over-temperature protection, allowing for more efficient and secure operation.

The FM4MMB1085MPNNE can also be used for other non-automotive applications, such as lighting systems, safety systems, renewable energy systems, HVAC systems and more. In these non-automotive applications, it can provide a reliable and efficient power source, and can be used as part of a complete control system.

In conclusion, the FM4MMB1085MPNNE is a versatile, efficient and reliable DC/DC controller for automotive and non-automotive applications. It features a wide adjustable voltage range, low on-resistance, and various protections, making it suitable for a variety of applications. With its low power consumption and wide-ranging operating temperature range, the FM4MMB1085MPNNE is an ideal choice for reliable and efficient DC/DC conversion.

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