NXP UBA2025荧光灯(CFL) 23 W电源解决方案

NXP公司的UBA2025是高压功率集成电路,包括半桥功率电路(600V,3欧姆),振荡器以及用于起动,预热,点火, 燃灯和保护.稳定状态的半桥电路电流高达280A,点火电流高达1.5A,可调预热时间和点火时间,可调预热电流和灯功率,主要用在5W到25W荧光灯(CFL).本文介绍了UBA2025主要特性, 方框图, 23W CFL应用电路图和所用元件值,以及230V/120V 23W CFL演示板主要特性和指标,电路图与材料清单(BOM).

The UBA2025 is a high voltage power IC intended to drive and control a Compact

Fluorescent Lamp (CFL). It contains a half bridge power circuit, an oscillator, and a control circuit for starting up, preheating, ignition, lamp burning, and protection.

UBA2025主要特性:

Two internal 600 V, 3ohm max NMOST half bridge powers

For steady state half bridge currents up to 280 mA

For ignition half bridge currents up to 1.5 A

Adjustable preheat and ignition time

Adjustable preheat current

Adjustable lamp power

Lamp temperature stress protection at higher mains voltages

Capacitive mode protection

Protection against too low a drive voltage for the power MOSFETs.

UBA2025应用:

5 W to 25 W CFLs provided that the maximum junction temperature is not exceeded.

图1.UBA2025方框图

图2.UBA2025 23W CFL应用电路图
23W CFL应用电路元件值:


230V/120V 23W CFL演示板
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