VP0808B

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The VP0808B is a single-channel, low voltage, high-speed MOSFET driver with 24-bit logic input and 8-bit PWM dimming output. It was designed for LED applications and helps to increase the switching/dimming frequency and reduce power consumption as well as extend LED life. It utilizes an embedded controller that reduces the complexity and control IC pin count to one or none, which allows for much easier design.

VP0808B Applications

The VP0808B is most often used in LED lightings such as smart bulbs and street lights, luminaires, downlights, linear light and spot light,etc. It also can be used in other applications such as the constant-current output, battery protection, solar panel, monitoring, AC/DC motor control and so on.

Working Principle

The VP0808B utilizes a single channel MOSFET driver with an advanced embedded controller. The controller is responsible for generating high-speed working frequency (up to 51kHz) which can increase the dimming frequency. This higher switching frequency mitigates the power consumption and extends LED life. Additionally, the controller is capable of driving push-pull (AC output) and single-ended (DC output) configurations, making it more adaptable for different LED loads.

The VP0808B also gives the applications-maker great flexibility with up to 16 bit of dimming resolution, 7-bit SIN wave dimming and adjustable dimming frequencies. It can easily connect to digital-to-analog conversion (DAC) devices to provide 8-bit, 10-bit, 12-bit and 16-bit PWM output dimming control. For easy integration, the VP0808B includes shutdown, reset, enable and flag registers as well as an operational amplifier to provide programmable current sense features. Additionally, the VP0808B supports a wide range of LED module configurations, from common anode, to common cathode and from AC to DC configurations.

Conclusion

The VP0808B is a compact, single-channel MOSFET driver designed for LED applications that helps to increase switching/dimming frequencies and reduce power consumption, extend LED life and reduce complexity. It is often used in LED lightings such as street lights, luminaires, downlight, linear lights, spotlights, and so on. Additionally, it can be used in other applications such as the constant-current output, battery protection, solar panel, monitoring, and AC/DC motor control. It features features such as a high-speed working frequency (up to 51kHz), 7-bit SIN wave dimming, adjustable dimming frequencies, up to 16 bits of dimming resolution and much more.

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