FL7930CMX_G データシートの表示（PDF） - Fairchild Semiconductor

部品番号

コンポーネント説明

メーカー

FL7930CMX_G

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

Fairchild Semiconductor 

October 2013

FL7930C

Single-Stage Flyback and Boundary-Mode PFC

Controller for Lighting

Features

 PFC-Ready Signal

 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)

Applications

 Ballast

 General LED Lighting

 Industrial, Commercial, and Residential Fixtures

 Outdoor Lighting: Street, Roadway, Parking,

Construction, Ornamental LED Lighting Fixtures

Description

The FL7930C 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.

FL7930C provides over-voltage protection (OVP), open-

feedback protection, over-current protection (OCP),

input-voltage-absent detection, and under-voltage

lockout protection (UVLO). The PFC-ready pin can be

used to trigger other power stages when PFC output

voltage reaches the proper level with hysteresis. The

FL7930C 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.

Ordering Information

Part Number

Operating

Temperature Range

Top Mark

Package

Packing

Method

FL7930CMX_G

-40 to +125°C

FL7930CG 8-Lead, Small Outline Package (SOP) Tape & Reel

© 2011 Fairchild Semiconductor Corporation

FL7930C • Rev. 1.0.3

www.fairchildsemi.com

Share Link: