onsemi FAN9612MX

FAN9612 Series 18 V 6 mA SMT Interleaved Dual BCM PFC Controller - SOIC-16

CONTROLLER, PFC, BCM, DUAL, 16SOIC; UVLO:12.5V; Supply Voltage Min:9V; Supply Vo

Tape & Reel (TR) FAN9612 LAST SHIPMENTS (Last Updated: 1day ago) e3 power factor correction device 9V~18V 525kHz 80muA 1.5mm

CONTROLLER, PFC, BCM, DUAL, 16SOIC; UVLO:12.5V; Supply Voltage Range:9V to 18V; Startup Current:80µA; Operating Supply Current:4mA; Digital IC Case Style:SOIC; No. of Pins:16; Frequency:525kHz; Operating Temperature Range:-40°C to +125°C; MSL:MSL 1 - Unlimited

The FAN9612 interleaved dual Boundary-Conduction-Mode (BCM) Power-Factor-Correction (PFC) controller operates two parallel-connected boost power trains 180° out of phase. Interleaving extends the maximum practical power level of the control technique from about 300 W to greater than 800 W. Unlike the continuous conduction mode (CCM) technique often used at higher power levels, BCM offers inherent zero-current switching of the boost diodes, which permits the use of less expensive diodes without sacrificing efficiency. Furthermore, the input and output filters can be smaller due to ripple current cancellation and effective doubling of the switching frequency.The converter operates with variable frequency, which is a function of the load and the instantaneous input / output voltages. The switching frequency is limited between 16.5 kHz and 525 kHz. The Pulse Width Modulators (PWM) implement voltage-mode control with input voltage feedforward. When configured for PFC applications, the slow voltage regulation loop results in constant on-time operation within a line cycle. This PWM method, combined with the BCM operation of the boost converters, provides automatic power factor correction. The controller offers bias UVLO of 12.5 V / 7.5 V, input brownout, over-current, open-feedback, output over-voltage, and redundant latching over-voltage protections. Furthermore, the converters’ output power is limited independently of the input RMS voltage. Synchronization between the power stages is maintained under all operating conditions.