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:
The circuit topology enables a broad range of ballast applications at different mains voltages for driving lamp types from T8, T5, PLC, T10, T12, PLL and PLT, for example.

图1.UBA2014方框图

图2.UBA2014测试和应用电路
UBA2014评估板
The board consists of two separate Printed-Circuit Boards (PCBs). The main board with
the resonant circuit and a small daughter board with the UBA2014 IC.
1 子板
The daughter board contains the UBA2014 IC with the preheat, sweep and oscillator capacitor, the VDD generation and some other low voltage components.
The daughter PCB can be easily replaced in case of damage. Care should be taken that the board is inserted properly. Pin 11 has been removed from the daughter board to prevent the board being inserted incorrectly.

图3.UBA201...