3PCS01 ICE3PCS01G Avalon PSU Power Factor Correction PFC IC

3PCS01 ICE3PCS01G PFC IC for Avalon PSU3300-01 PLUS1 Repair

The 3PCS01 ICE3PCS01G is a continuous-conduction-mode (CCM) power factor correction (PFC) controller in a 14-pin package, designed to deliver high efficiency and excellent dynamic response on high-power offline supplies. It is the PFC IC fitted on Canaan Avalon PSU3300-01 PLUS1 power supplies and is one of the most-replaced parts on Avalon repair benches when the PSU fails to start despite a healthy bridge rectifier and bulk capacitor.

With Vcc rated up to 25V, accurate brown-out protection, enhanced dynamic response without input-current distortion and external current-loop compensation, the 3PCS01 ICE3PCS01G is built for the demanding 220-277V AC environment of mining-farm deployments.

Specifications

Where the 3PCS01 sits in an Avalon PSU

Inside the Avalon PSU3300-01 PLUS1, the 3PCS01 ICE3PCS01G drives the PFC boost converter that follows the bridge rectifier and shapes the input current to keep power factor high. When this IC fails — typically after an upstream short on the PFC MOSFETs or a transient on the auxiliary supply — the PSU produces no high-voltage bus, no main output, and often no error light beyond the standby LED.

Compatibility

Use as a direct replacement for the 3PCS01 / ICE3PCS01G socket on Avalon PSU3300-01 PLUS1 power supplies. Other AvalonMiner PSU revisions in the same generation use the same PFC controller — confirm by photographing the IC marking and the PSU label before ordering if you are unsure.

Common failure symptoms

• Avalon PSU does not start — no high-voltage PFC bus on the bulk capacitor while the AC input is present
• Standby LED on the PSU lights up but the main output never enables
• Burn mark on the PFC MOSFETs propagated back to the 14-pin controller IC
• Repetitive hiccup at start-up with the PFC inductor never switching
• Brown-out fault despite a healthy AC mains supply

Frequently asked questions

Is the 3PCS01 the same part as the ICE3PCS01G?

Yes. 3PCS01 is the on-package marking; ICE3PCS01G is the full part number. Both designations refer to the same PFC controller IC.

Which Avalon PSU models use this PFC IC?

It is fitted on the AvalonMiner PSU3300-01 PLUS1. Other Avalon PSU revisions in the same generation use the same PFC controller; share a photo of your PSU label if you need confirmation.

What else should I check after a PFC IC failure?

Inspect the PFC MOSFETs, the PFC inductor, the start-up resistors and the auxiliary supply that feeds the IC's Vcc. A failed PFC IC is usually a symptom of a collateral failure elsewhere in the PFC stage.

Do you stock matching PFC MOSFETs?

Yes. We stock MDF5N50F (500V) and other primary MOSFETs commonly fitted on Avalon PSU3300 series. Contact us for a combined repair-bundle quote.

Related products

• MDF5N50F 500V N-Channel MOSFET Avalon PSU
• LP3986-18B3F Ultra-Low-Noise LDO 1.8V for Avalon ASIC
• GBU3008 800V 30A Bridge Rectifier for PSU Repair
• GBJ2508 800V 25A Bridge Rectifier for PSU Repair

Contact contact@lys-sz.com for volume pricing or compatibility questions. Worldwide shipping from our Shenzhen warehouses. DDP available for US and EU customers.