SUS62405C

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The SUS62405C is a step up DC-DC converter with integrated MOSFET, optimized for high-efficiency, compact size and low-input voltage applications. It offers both high efficiency and high photovoltaic (PV) system integration, and can deliver up to 7A continuous output without requiring external cooling. The SUS62405C is based on a proprietary architecture designed to improve efficiency and reduce component count, allowing it to achieve more than 92% efficiency with a minimal board area.

The SUS62405C is used in a variety of applications such as solar inverters, LED driver systems, and battery chargers. It’s suitable for any application where a step-up dc-dc converter is needed. The device supports single-ended primary inductance (SEPIC) and buck-boost topologies, as well as isolated or non-isolated output.

The SUS62405C is based on a synchronous buck topology, utilizing a high frequency PWM modulator, a MOSFET with low RDS(ON) and an integrated inductor. Its input range is 4.5 to 15V, and its output range is adjustable from 4.5 to 12V. It features a maximum switching frequency of 2MHz, and has integrated current-mode PWM control with 10.24V external voltage reference. It also offers under-voltage lock-out (UVLO), and enable and inhibit pins for controlling operation when needed.

The SUS62405C includes protection features such as over-voltage (OVP), over-temperature (OTS), and over-current protection (OCP) for improved reliability. It also integrates an upper MOSFET with low RDS(ON) and a lower MOSFET for synchronous rectification, as well as a built-in soft-start function. The soft-start feature allows for quick startup and ramp-up time for power supply applications. All these features ensure low-noise, high-efficiency, and reliable operation of the SUS62405C DC-DC converter.

On the output side, the SUS62405C provides a voltage loop for adjustable output voltage setting and load thermostatic control. It also supports output voltage range selection and slew rate control. GPIO logic support is also integrated into the device, providing for PWM dimming control and fault feedback. Additionally, the SUS62405C supports output voltage sequencing, allowing multiple output voltages to be sequentially switched on or off at power-on or power-off.

In summary, the SUS62405C is a highly efficient, high-performance, low-power step-up DC-DC converter with integrated MOSFETs and an integrated inductor. Its low-input voltage range allows it to step up input voltages well below the output voltage range. Its high-efficiency and low component count makes it ideal for applications such as solar inverters, LED driver systems, and battery chargers. Its integrated features such as protection, PWM dimming control, and output voltage sequencer all support reliable and robust operation.

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