What the CCM mode and 65 kHz switching mean for your PFC stage
The ICE1PCS02G is a Continuous Conduction Mode (CCM) power factor controller — the inductor current never falls to zero during the switching cycle, which means lower peak currents and reduced EMI filter requirements compared to a discontinuous-mode part, at the cost of a more complex control loop. Its fixed 65 kHz switching frequency sits in the sweet spot for a 300-1000 W PFC stage: fast enough to keep the magnetic components small, but not so high that gate-drive losses or switching losses dominate the thermal budget in a through-hole DIP package.
Supply voltage, startup, and the operating envelope
The 10.2 V to 21 V supply range covers the standard auxiliary rail from a 12 V or 15 V bias supply — the undervoltage lockout thresholds are set inside that window, so the controller starts cleanly and does not brown out on a sagging rail. Startup current is just 100 µA, which lets you use a high-value, low-power startup resistor from the bulk capacitor without cooking the resistor during the pre-charge phase — a common pain point in offline PFC designs.
Package, mounting, and board integration
Housed in an 8-pin DIP (PG-DIP-8-12) with 0.300-inch row spacing and 2.54 mm pin pitch, the ICE1PCS02G is a through-hole part — it sits on a standard 100-mil prototyping grid and can be socketed for early validation or hand-soldered in small runs. Supplied in bulk tube packaging — no tape-and-reel, so it is a natural fit for through-hole assembly lines or bench builds where a reel feeder is not available.