The NCP1653 and NCP1601 PFC controllers target power supplies with input levels between 75W and several kilowatts. The NCP1653 is a fixed-frequency, current-mode controller for driving continuous conduction mode boost converters with power levels from
The NCP1653 and NCP1601 PFC controllers target power supplies with input levels between 75W and several kilowatts. The NCP1653 is a fixed-frequency, current-mode controller for driving continuous conduction mode boost converters with power levels from 100W to 3 kW. It also operates with the output voltage tracking the input voltage. Other features include: average current-mode or voltage-mode control; soft-start; under-voltage lockout; under-voltage, over-voltage and over-power protection; and thermal shutdown. The NCP1601, for PFC boost circuits up to 300W, operates in either fixed-frequency discontinuous conduction mode (DCM) and/or variable frequency critical conduction. In DCM mode, it can synchronize to an external frequency source or set at a fixed frequency. Prices for the NCP1653 and NCP1601 are $0.66 and $ 0.36 each/10,000, respectively. ON SEMICONDUCTOR, Phoenix, AZ. (800) 282-9855.
