NXP UBA2014 120V 18w调光CFL解决方案
NXP公司的UBA2014是用于CFL的600V驱动IC,火线电压高达270V(RMS),它采用650V双极CMOS DMOS(BCD)功率技术制造,提供两个单独的功率MOSFET, 可调预热时间和电流,可驱动多种类型灯.本文介绍了UBA2014主要特性, 方框图, 测试和应用电路以及UBA2014评估板(包括子板和主板)的电路图,材料清单, 采用分离与组合的PFC和CFL镇流器的TRIAC墙式调光器,120V高功率因素可调光18W CFL解决方案.
The IC UBA2014is a monolithic integrated circuit for driving electronically ballasted fluorescent lamps, with mains voltages up to 277 V (RMS) (nominal value).
The circuit is made in a 650 V Bipolar CMOS DMOS (BCD) power-logic process. It provides the drive function for the two discrete power MOSFETs.
Besides the drive function, the IC also includes the level-shift circuit, the oscillator function, a lamp voltage monitor, a current control function, a timer function and protections.
UBA2014主要特性:
Adjustable preheat time
Adjustable preheat current
Current controlled operating
Single ignition attempt
Adaptive non-overlap time control
Integrated high-voltage level-shift function
Power-down function
Protection against lamp failures or lamp removal
Capacitive mode protection
UBA2014应用:
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