ON driver suits LED-based lighting applications

ON Semiconductor has introduced an offline LED driver that integrates power factor correction and isolated step-down AC/DC power conversion in a single stage for LED-based lighting applications.

By eliminating the need for a dedicated PFC boost stage, the NCL30001 is said to offer a reduced component count, lower-cost solution that supports higher overall system efficiency in LED power supplies for applications such as LED-based street, low bay, wall packs, and architectural lighting.

Ideal for designs with power requirements of between 40W and 150W, the NCL30001 is designed to operate in continuous conduction mode (CCM) and can be configured as either a constant current or fixed output voltage driver.

With an adjustable operating frequency of 20kHz to 250kHz and a multi-function latch-off pin able to implement an over-temperature shutdown circuit, the SOIC-16 packaged controller offers circuit designers flexibility.

Further features of the NCL30001 controller's specification include a high-voltage start-up circuit, voltage feed-forward to improve loop response, a brownout detector, internal overload timer, latch input and a high-accuracy multiplier to reduce input line harmonics.

An isolated single-stage power factor corrected LED driver evaluation board is available for this device, which is intended for applications ranging from 40W - 100W that require a direct constant current output.

The current is adjustable from 0.7A to 1.5A to support a wider range of high-power, high-brightness LEDs.

The NCL30001 is available in a 16-lead SOIC package.

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