FL7930B集成電路（IC）的照明鎮(zhèn)流器控制器規(guī)格書PDF中文資料

FL7930B屬于集成電路（IC）的照明鎮(zhèn)流器控制器。由安森美半導(dǎo)體公司制造生產(chǎn)的FL7930B照明，鎮(zhèn)流器控制器此產(chǎn)品族中的產(chǎn)品可用于實現(xiàn)控制和調(diào)節(jié)功能。對于日光燈、電致發(fā)光燈和 HID 燈等非 LED 照明工具的正常工作，這些功能很有必要或十分有用。既定器件所具備的特定功能集因預(yù)期用途各異，并且所供應(yīng)的產(chǎn)品可能包括相應(yīng)資源以直接控制驅(qū)動負(fù)載的電源，也可能不包括這些資源。

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.

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)

Applications

■ Ballast

■ General LED Lighting

■ Industrial, Commercial, and Residential Fixtures

■ Outdoor Lighting: Street, Roadway, Parking, Construction, Ornamental LED Lighting Fixtures