SP7601EK1-L

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The SP7601EK1-L is a highly specialized driver IC – a power management integrated circuit (PMIC) specifically designed for driving LED lights. The SP7601EK1-L is a one-channel monolithic switching regulator controller IC implementing a boost converter topology.It’s typically used to provide a constant current source for driving super-bright LEDs used in automotive rear lamp applications.

Application fields

The SP7601EK1-L is specifically designed to be used as a LED driver in automotive rear lamps. It provides a constant current to power LEDs in automotive rear lamp applications. The controller provides a regulated output current with very wide input voltage range from 7V to 32V DC, making it suitable for a wide range of automotive applications.

The SP7601EK1-L also supports wide temperature range operation, from -40°C to +125°C. The LED current can be adjusted using a digital potentiometer and programmed using a PWM signal. Additionally, it has an integrated over-temperature protection and overcurrent protection, providing improved system reliability.

Working principle

The SP7601EK1-L is a high-efficiency DC-DC converter that uses a special topology called a buck-boost converter. It operates by using a pair of transistors alternately to boost the voltage of the input and provide an output that is greater than its input. As the name suggests, it bridges the gap between boosting and bucking and eliminates the need for two separate circuits.

The SP7601EK1-L features two independent buck-boost converters. It has two input pins, one for the input voltage and the other for a higher voltage. It accepts an input voltage up to 32V. The input voltage is then converted to a regulated output current. The current is then regulated and adjusted using a digital potentiometer or PWM signal.

The SP7601EK1-L is highly efficient, achieving up to 95 percent efficiency. It also has integrated over-temperature protection and over-current protection, providing improved system reliability. Additionally, it supports a wide range of operating frequencies and low-ripple current mode control, making it ideal for applications requiring low-frequency operation.

Conclusion

The SP7601EK1-L is a highly specialized driver IC designed for driving LED lights. It is a one-channel monolithic switching regulator controller IC implementing a boost converter topology. It is typically used to power automotive rear lamp applications, with a wide input voltage range, wide temperature range operation, adjustable LED current, and integrated over-temperature protection and over-current protection. The SP7601EK1-L can operate at up to 95 percent efficiency, making it an ideal and reliable LED driver for automotive applications.

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