NXP UBA2015AP 35W CFL灯电源解决方案

2011年09月25日 00:05 发布者：1046235000

NXP公司的UBA2016A/15/15是集成了PFC,线性调光和升压功能的600V荧光灯驱动器,包括荧光灯驱动模块,半桥驱动器,临界导通模式的PFC控制器/驱动器以及几种保护功能,主要用于通用照明的小型荧光灯和管灯驱动.本文介绍了UBA2016A/15/15A主要特性和优势与方框图, 基本的PFC应用电路图, 灯电流控制图和多种应用电路图,以及UBA2015AP 120 V (AC) 评估板指标,电路图,材料清单和PCB元件布局图.

UBA2016A/15/15A:600 V fluorescent lamp driver with PFC, linear dimming and boost function

The UBA2016A/15/15A are high voltage Integrated Circuits (IC) intended to drive fluorescent lamps with filaments such as Tube Lamps (TL) and Compact Fluorescent Lamps (CFL) in general lighting applications. The IC comprises a fluorescent lamp control module, half-bridge driver, built-in critical conduction mode Power Factor Correction(PFC) controller/driver and several protection mechanisms. The IC drives fluorescent lamp(s) using a half-bridge circuit made of two MOSFETs with a supply voltage of up to 600 V.

The UBA2016A/15/15A are designed to be supplied by a start-up bleeder resistor and a dV/dt supply from the half-bridge circuit, or any other auxiliary supply derived from the half-bridge or the PFC. The supply current of the IC is low. An internal clamp limits the supply voltage.

UBA2016A/15/15A主要特性和优势:

 Power factor correction features:

 Integrated 4-pin critical conduction mode PFC controller/driver

 Open and short pin-short protection on PFC feedback pin

 Overcurrent protection

 Overvoltage protection

 Half-bridge driver features:

 Integrated level-shifter for the high-side driver of the half-bridge

 Integrated bootstrap diode for the high-side driver supply of the half-bridge

 Independent non-overlap time

 Fluorescent lamp controller features:

 Linear dimming (UBA2016A and UBA2015A only)

 EOL (End-Of-Life) detection (both symmetrical and asymmetrical)

 Adjustable preheat time

 Adjustable preheat current

 Adjustable fixed frequency preheat (UBA2015 and UBA2015A only)

 Lamp ignition failure detection

 Ignition detection of all lamps at multiple lamps with separate resonant tanks

 Second ignition attempt if first failed

 Constant output power independent of mains voltage variations

 Automatic restart after changing lamps

 Adjustable lamp current boost at start-up (UBA2016A only)

 Lamp current control

 Enable input (UBA2015 and UBA2015A only)

 Protection

 Hard switching/capacitive mode protection

 Half-bridge overcurrent (coil saturation) protection

 Lamp overvoltage (lamp r

UBA2016A/15/15A 应用:

Intended for fluorescent lamp ballasts with either a dimmable (UBA2016A and UBA2015A) or a fixed (UBA2015) output and PFC for AC mains voltages of up to 390 V.

图1.UBA2016A方框图

图2.UBA2015A和UBA2015方框图

图3. UBA2016A/15/15A基本的PFC应用电路图

图4. UBA2016A/15/15A基本的半桥和IC电源连接电路图

图5. 灯电流控制图

图6. UBA2016A升压应用案例图
Vo(PFC) = 430 V的元件值:
Rhv = 22Mohm(500 V); Chv = 100 nF (500 V); Dreset = 1N4148; CBOOST = 150 nF (63 V);
RBOOST = 10 Mohm and Rbias = 10 Mohm

图7. UBA2016A TL或CFL应用电路图(火线滤波器未显示)

图8. UBA2016A基本的TL或CFL应用电路图(有较好的PFC性能)(火线滤波器未显示)

图9. UBA2016A 固定时间升压起动的TL或CFL应用电路图(火线滤波器未显示)

图10. UBA2016A 取决于灯温度的升压起动的TL或CFL应用电路图(火线滤波器未显示)

图11. UBA2016A 可调光TL应用电路图(火线滤波器未显示)

UBA2015AP 120 V (AC) 评估板

This evaluation board is intended to build applications with the UBA2016A, UBA2015A and UBA2015 ballast controller family. This document describes the specification and use of the board. Default, this ballast design is intended to drive one TL5HE35W lamp with the UBA2015AP. However, several options are provided on the board to use it with the UBA2016AP and UBA2015P.