NXPUBA2016A35WTL5高效荧光灯电源解决方案
NXP公司的UBA2016A/15/15A 是具有PFC,线性调光和升压功能的600V荧光灯驱动器.IC包含了荧光灯控制模块,半桥驱动器,内置了临界导电模式PFC控制器/驱动器和多种保护机制,电源电压高达600V,火线电压高达390V.本文介绍了UBA2016A/15/15A主要特性和优势,方框图, 基本的PFC应用框图以及多种TL或CFL应用电路, 参考设计(230VAC)板指标,框图,电路图,材料清单,PCB布局图与TL5灯连接电路图.
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:
? 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 removal) protection
? Temperature protection
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.UBA2016A基本的PFC应用框图
图3.UBA2016A基本的半桥和IC电源连接图
图4.采用UBA2016A的TL或CFL荧光灯应用电路图(火线滤波器未显示)
图5.采用UBA2016A的TL或CFL荧光灯应用电路图(有较好PFC性能,火线滤波器未显示)
图6.采用UBA2016A带固定时间起动的TL或CFL荧光灯应用电路图(火线滤波器未显示)
图7.采用UBA2016A取决于灯温度起动T的L或CFL荧光灯应用电路图(火线滤波器未显示)
图8.采用UBA2016A可调光TL荧光灯应用电路图(火线滤波器未显示)
UBA2015P参考设计(230VAC)
This document describes the specification and use of the UBA2015P board. This reference ballast design is intended to drive two TL5HE28W or TL5HE35W lamps.
The board needs to be connected to the mains voltage. Touching the board while it is connected to the mains voltage must be avoided at all times. An isolated housing is obligatory when used in uncontrolled, non laboratory environments. Galvanic isolation of the mains phase using a variable transformer is always recommended.
图9.UBA2015P参考设计(230VAC)板外形图
参考设计(230VAC)板指标:
参考设计(230VAC)板支持的灯:
The input section includes:
? The fuse
? Surge protection against fast AC transients
? ElectroMagnetic Interference (EMI) filter
? Full-wave rectifier
? Preconditioner or Power Factor Correction (PFC)
The output of the PFC connects to a electrolytic buffer capacitor to supply the half-bridge circuit. The lamp connects to the half-bridge circuit. The UBA2015P controller IC controls the PFC and the half-bridge circuit.
The PFC is implemented as an up converter in boundary conduction mode. The resonant circuit is voltage fed by the half-bridge which consists of two N-channel MOSFETs. The resonant circuit includes a transformer for electrode (pre)heating.
图10.UBA2015P参考设计(230VAC)板方框图
图11.灯连接电路图
图12.UBA2015P参考设计(230VAC)板电路图
UBA2015P参考设计(230VAC)板材料清单(BOM):
图13.UBA2015P参考设计(230VAC)板PCB布局图
详情请见:
http://www.nxp.com/documents/data_sheet/UBA2016A_15_15A.pdf
和
http://www.nxp.com/documents/user_manual/UM10466.pdf
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