NCL30167DR2G

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The NCL30167DR2G is a Regulated Constant Current Sink Driver from ON Semiconductor. It is a member of the ON Semiconductor Sinks family, a part of the National Semiconductor Power Management series. This device is designed to provide a constant current over a wide range of input voltages and outputs, making it suitable for a wide range of applications. It is classified as a PMIC - LED Drivers, which makes it ideal for the applications requiring constant current drives for LEDs.

Application Field

The NCL30167DR2G driver is designed to support series string LEDs, Chip-On-Board (COB), as well as single LEDs. It is a versatile device, suitable for applications such as automotive lighting, retail display lighting, and portable devices. It is suitable for both high and low side current source drive configurations, allowing the designer to specify the system component placement. Additionally, the NCL30167DR2G is small enough to fit into tight spaces, ensuring efficient utilization of space, as well as minimized system cost.

Working Principle

The NCL30167DR2G works by monitoring the differential current in the feedback loop and providing PWM control of the high-side and/or low-side N-MOSFETs. This ensures the output stays constant over a range of input voltages. The internal Dimming Control Circuitry provides flicker-free, low data-rate dimming and allows for precision dimming with a range of external dimming signals. The device also has an open-drain fault indication. The status of the SMPS output is indicated through the open-drain pin and provides an interrupt signal when the output current goes above the set value.

Conclusion

The NCL30167DR2G is a power management device designed for use in PMIC - LED Drivers applications. The operating principle ensures accurate constant current drive over a wide range of input voltages and outputs. Additionally, the device’s size allows for efficient utilization of space, resulting in minimized system cost. The NCL30167DR2G is suitable for applications such as automotive lighting, retail display lighting, and portable devices.

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