ULD5121 controller equivalent, adaptive 100/120hz current ripple removing circuit controller.
* Controller for adaptive 100/120Hz current ripple remover * Amplitude of LED current ripple programming * Maximum cathode voltage of LED programming * Maximum LED curren.
UTC ULD5121 is a controller, which drives external NMOSFET to remove the 100/120Hz LED current ripple on AC/DC power by a capacitor between VC and GND. The chip ensures minimum power dissipation on NMOSFET while removing LED current ripple relying on.
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