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  • FAN7688 PFM Controller for Bitmain APW12 APW8 APW9 PSU Repair
  • Highly Efficient PFM Controller - FAN7688 for Bitmain APW7 Power Supply
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FAN7688SJX PFM Controller for Bitmain APW12 APW8 APW9 PSU Repair

$2.85 USD
$2.85 USD
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About the Product

FAN7688SJX PFM Controller for Bitmain Miner Power Supplies

The FAN7688SJX is an advanced Pulse Frequency Modulation (PFM) controller designed for high-efficiency LLC resonant converters with synchronous rectification (SR). It is widely used in Bitmain APW12, APW8, APW9 and similar mining power supply platforms for repair, refurbishment, and production.

Using a charge-control based current-mode architecture, the FAN7688SJX simplifies the feedback loop design while maximizing conversion efficiency in isolated DC/DC topologies. Integrated soft-start and adaptive dead-time control further improve switching performance under variable load conditions.

Key Technical Advantages

  • PFM control for improved light-load efficiency
  • Closed-loop soft-start for safe voltage ramp-up
  • Adaptive dead-time control for synchronous rectification
  • True input power limiting for enhanced protection
  • Integrated fault handling for PSU reliability
  • Ideal drop-in replacement for Bitmain PSU repair

Typical Applications

  • Bitmain APW-series PSU repair (APW12 / APW8 / APW9 / APW7)
  • LLC resonant DC/DC converters
  • Server and telecom power modules
  • Industrial high-voltage SMPS systems

Technical Specifications

Parameter Specification
Model FAN7688SJX
Controller Type PFM Controller
Outputs 4 Outputs
Switching Frequency 100 kHz
Input Voltage 5 V
Output Voltage 18 V
Output Current 110 µA
Operating Temp -40°C to +125°C
Package SOP-16
Mounting Style SMD / SMT
Shipping & Customs

United States (DDP):
Orders shipped to the US are delivered DDP (Delivered Duty Paid). All customs duties, import taxes, and fees are included — no additional charges on delivery.

International (outside the US):
Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes. Any such fees are set by your local authorities and are not included in the product price.

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