SP6137EU-L/TR

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SP6137EU-L/TR Application Field and Working Principle

The SP6137EU-L/TR is a DC-DC switching controller, which falls into the wider category of voltage regulators. This device is typically used for producing fixed power supplies with high efficiency, compatibility with a wide range of power sources and voltage stability. It is designed for applications typically in the 1 to 10 Watt range, and has a variety of features which make it very suitable for this purpose. The SP6137EU-L/TR has a wide temperature range and can function in an ambient temperature range of -40 Celsius to 150 Celsius.

Functional Overview

The SP6137EU-L/TR is a hysteretic DC-DC controller, which operates by detecting input voltage across two internally adjusted threshold voltages. In general, the controller can be said to have three main operation modes, active OFF mode, active ON mode, and active PWM mode. In active OFF mode, it is completely off and does not switch the output, unless it reaches its upper threshold voltage. In active ON mode, it is completely on and continuously switches regardless of input voltage. In active PWM mode, it switches between active ON and active OFF states, depending on the magnitude of the input voltage.

The SP6137EU-L/TR is configured to have an internal synchronous rectifier, and a P-channel MOSFET of up to 8A source current. The controller has an adjustable output voltage, which can range from 0.6 V to 5.5 V. It also features a wide operating temperature range of -40 degrees Celsius to 150 degrees Celsius, short circuit protection, and a soft-start feature, which prevents inrush currents.

Features and Benefits

• High Efficiency: The SP6137EU-L/TR has very high efficiency, due to its synchronous rectifier, which minimizes power losses. This makes it an ideal choice for low-power applications.
• Wide Input Voltage Range: The controller has a wide input voltage range of 3.19 V to 18 V, making it compatible with a variety of power sources.
• Wide Output Voltage Range: The adjustable output voltage range of 0.6 V to 5.5 V, makes it suitable for powering a variety of load circuits.
• Wide Operating Temperature Range: The SP6137EU-L/TR has a wide operating temperature range of -40 degrees Celsius to 150 degrees Celsius, making it suitable for use in both indoor and outdoor applications.
• Short Circuit Protection: The controller has an integrated over-current protection function, which prevents the device from being damaged due to a shorted output.
• Soft-Start Feature: The soft-start feature prevents large inrush currents, which can cause damage to other components.

Conclusion

Overall, the SP6137EU-L/TR is an ideal choice for applications ranging from 1 to 10 Watts. Its wide input, output and operating temperature ranges, as well as its built-in short circuit protection and soft-start feature make it an extremely versatile and robust choice for almost any type of application.

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