FAN7930CMX

Product Summary

The FAN7930CMX is an active power factor correction (PFC) controller for boost PFC applications that operate in critical conduction mode (CRM). It uses a voltagemode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. Because the FAN7930CMX does not need rectified AC line voltage information, it saves the power loss of an input voltage sensing network necessary for a current-mode CRM PFC controller. The FAN7930CMX provides over-voltage protection (OVP), open-feedback protection, over-current protection (OCP), input-voltage-absent detection, and undervoltage lockout protection (UVLO). The applications of the FAN7930CMX include Adapter, Ballast, LCD TV, CRT TV, SMPS.

Parametrics

FAN7930CMX absolute maximum ratings: (1)Supply Voltage, VCC: VZ V; (2)Peak Drive Output Current, IOH, IOL: -800 to +500 mA; (3)Driver Output Clamping Diodes VO > VCC or VO < -0.3V, ICLAMP: -10 to +10 mA; (4)Detector Clamping Diodes, IDET: -10 to +10 mA; (5)Error Amplifier Input, Output, ZCD and RDY Pin, VIN: -0.3 to 8.0V; CS Input Voltage, VIN: -10.0 to 6.0V; (6)Operating Junction Temperature, TJ: +150℃; (7)Operating Temperature Range, TA: -40 to +125℃; (8)Storage Temperature Range, TSTG: -65 to +150℃; (9)Electrostatic Discharge Capability, Human Body Model, JESD22-A114, ESD: 2.5kV; Charged Device Model, JESD22-C101, ESD: 2.0kV.

Features

FAN7930CMX features: (1)PFC-Ready Signal; (2)Input Voltage Absent Detection; (3)Maximum Switching Frequency Limitation; (4)Internal Soft-Start and Startup without Overshoot; (5)Internal Total Harmonic Distortion (THD) Optimizer; (6)Precise Adjustable Output Over-Voltage Protection; (7)Open-Feedback Protection and Disable Function; (8)Zero-Current Detector (ZCD); (9)150μs Internal Startup Timer; (10)MOSFET Over-Current Protection (OCP); (11)Under-Voltage Lockout with 3.5V Hysteresis; (12)Low Startup and Operating Current; (13)Totem-Pole Output with High State Clamp; (14)+500/-800mA Peak Gate Drive Current; (15)8-Pin SOP.

Diagrams