By Diodes Incorporated 53
The AP1688 from Diodes Incorporated is a high power factor, constant current buck controller for universal input voltage applications. The buck controller operates under boundary conduction mode (BCM) to achieve high efficiency, low electromagnetic interference (EMI), and low total harmonic distortion (THD).
An open loop algorithm is adopted in the AP1688, which will make the system achieve excellent line and load regulations with high PF for universal mains input.
The AP1688 features fast start-up, low start-up current, low operation current, and high efficiency. It also has comprehensive protection features including under-voltage lock out (UVLO), over-voltage protection (OVP), over-current protection (OCP), over- protection (OTP), and LED short and open protection.
The AP1688 is available in SO-8 package.
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