CS1500 Datasheet, PDF (20/22 Pages) Cirrus Logic – Digital Power Factor Correction IC

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CONFIDENTIAL
CS1500
6. DEFINITIONS
Variable
η
α
f_line(min)
I_AC
I_FB
I_FET(pk)
I_rms
I_sat
I_st
I_ST
L_B
P_o
P_o(max)
R_AC
R_FB
V_in(min)
V_link
V_link(min)
ΔV_link(rip)
V_rect
Definition
The efficiency factor.
A margin factor to guarantee rated power against tolerances and transients.
The minimum AC line frequency.
The current generated by V_rect that flows into the IAC pin.
The current generated by V_link that flows into the FB pin.
The PFC MOSFET peak current, which is equal to the peak current in the PFC boost inductor.
The magnitude of the RMS current.
The boost inductor L_B saturation current.
The sum of the current into the IAC and FB pins.
The startup current of the chip.
The PFC boost inductor.
The nominal output power from the CS1500 PFC circuit.
The maximum value of the output power from the CS1500 PFC circuit.
The sense resistor used to measure current into the IAC pin.
The sense resistor used to measure current into the FB pin.
The minimum specified line voltage for proper operation (volts RMS).
The magnitude of the output voltage from the PFC.
The magnitude of the output voltage from the PFC.
ΔV_link(rip), is the output voltage ripple requirement in volts peak-to-peak
The instantaneous value of the rectified line voltage (volts).
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DS849A5