MP44014
High-performance CCM PFC controller for high-power applications up to 1000W with active X-capacitor discharge.
Product Overview
Description
The MP44014 implements continuous conduction mode (CCM) power factor correction for high-power applications from 300W to 1000W. The CCM operation maintains constant switching frequency, enabling easier EMI filtering and lower peak currents compared to CRM alternatives.
The controller features average current mode control for accurate power factor correction, integrated active X-capacitor discharge for safety compliance, and comprehensive protection functions. The programmable switching frequency (50kHz to 250kHz) allows optimization for different inductor sizes and efficiency targets.
Key benefits include high efficiency (>98% at full load), low THD (<5%), and excellent light-load performance. The MP44014 is ideal for server power supplies, industrial equipment, and high-power LED drivers requiring power factor correction.
Product Series
MP
Primary Application
Server power supplies
Key Features
- CCM operation
- Average current mode control
- Active X-capacitor discharge
- >98% efficiency
- Programmable frequency
Specifications
| Input Voltage | 85V to 265V AC |
|---|---|
| Output Power | 300W to 1000W |
| Power Factor | >0.98 |
| THD | <5% |
| Operating Frequency | 50kHz to 250kHz (programmable) |
| Operating Temperature | -40°C to +125°C |
| Package | SOIC-16 |
Applications
Server power supplies
Electronic system design
Industrial equipment
Industrial automation and control
High-power LED drivers
Motor drive and control systems
Telecom rectifiers
Electronic system design
EV charging
Battery and charging management
FAE Expert Insights
"The MP44014 is my recommendation for high-power PFC applications above 300W. The CCM operation provides lower peak currents and easier EMI filtering compared to CRM. I've used this in several server power supply designs with excellent results - typically achieving >0.98 power factor and <5% THD. The active X-capacitor discharge is a nice feature that eliminates external discharge resistors. The average current mode control provides excellent transient response. One design consideration is the inductor - CCM requires larger inductance than CRM, but the constant frequency makes EMI filtering more straightforward. Overall, an excellent controller for high-power PFC applications."
High-performance CCM PFC with >98% efficiency for high-power applications
— James Liu, BeiLuo
Frequently Asked Questions
What is the difference between CCM and CRM PFC?
CCM (Continuous Conduction Mode) maintains continuous inductor current with constant switching frequency. Benefits: Lower peak currents, easier EMI filtering, suitable for high power (300W+). CRM (Critical Conduction Mode) operates at boundary of continuous/discontinuous conduction with variable frequency. Benefits: Zero-voltage switching, simpler control, lower cost, suitable for low-medium power (50W-300W). Choose CCM for high power and easier EMI. Choose CRM for cost-sensitive and low-power applications.
Use MP44014 (CCM) for 300W+ applications. Use MP44010 (CRM) for 50W-300W applications.