FL7930B Series

Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

Catalog

Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

Part	Type	Supplier Device Package	Mounting Type	Frequency [Max]	Frequency [Min]	Package / Case	Package / Case [y]	Package / Case [x]	Current - Supply	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]
ON Semiconductor FL7930CM	Ballast Controller	8-SOIC	Surface Mount	350 kHz	250 kHz	8-SOIC	3.9 mm	0.154 in	2.5 mA	13 V	20 V	125 °C	-40 °C
ON Semiconductor FL7930BM	Ballast Controller	8-SOIC	Surface Mount	350 kHz	250 kHz	8-SOIC	3.9 mm	0.154 in	2.5 mA	13 V	20 V	125 °C	-40 °C
ON Semiconductor FL7930BMX-G	Ballast Controller	8-SOIC	Surface Mount	350 kHz	250 kHz	8-SOIC	3.9 mm	0.154 in	2.5 mA	13 V	20 V	125 °C	-40 °C

Catalog

Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

Key Features

• Additional OVP Detection Pin

• VIN-Absent Detection

• Maximum Switching Frequency Limitation

• Internal Soft-Start and Startup without Overshoot

• Internal Total Harmonic Distortion (THD) Optimizer

• Precise Adjustable Output Over-Voltage Protection

• Open-Feedback Protection and Disable Function

• Zero Current Detector (ZCD)

• 150 μs Internal Startup Timer

• MOSFET Over-Current Protection (OCP)

• Under-Voltage Lockout with 3.5 V Hysteresis

• Low Startup and Operating Current

• Totem-Pole Output with High State Clamp

• +500/-800 mA Peak Gate Drive Current

• 8-Pin, Small-Outline Package (SOP)

Description

The FL7930B is an active power factor correction (PFC) controller for boost PFC applications that operate in critical conduction mode (CRM). It uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. Because the voltage-mode CRM PFC controller 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.FL7930B provides over-voltage protection (OVP), open-feedback protection, over-current protection (OCP), input-voltage-absent detection, and under-voltage lockout protection (UVLO). The additional OVP pin can be used to shut down the boost power stage when output voltage exceeds OVP level due to the resistors that are connected at INV pin are damaged. The FL7930B can be disabled if the INV pin voltage is lower than 0.45 V and the operating current decreases to a very low level. Using a new variable on-time control method, total harmonic distortion (THD) is lower than in conventional CRM boost PFC ICs.