IR IRS2158D 600V镇流器控制方案

IR公司的IRS2158D 是全集成全保护的600V镇流器控制IC,可以驱动所有类型的荧光灯. IRS2158D的主要特性包括可编程的灯预热和运行频率,可编程的预热时间,闭环半桥点燃电流调整,可编程灯寿命终期保护,输入低电压保护和低输入失调的运算放大器. 运算放大器可用来调光,电流或功率控制.本文介绍了IRS2158D的主要特性, 功能方框图,IRS2158D参考设计IRPLDIM3主要特性,方框图,电路图以及材料清单(BOM).

The IRS2158D is a fully integrated, fully protected 600V ballast control IC designed to drive all types of fluorescent lamps. The IRS2158D features include programmable preheat and run frequencies, programmable preheat time, closed-loop half-bridge ignition current regulation, programmable end-of-life protection, brownout protection and low input offset op amp. The op amp can be used for dimming, current or power control. Comprehensive protection features such as protection from failure of a lamp to strike, filament failures, end-of-life protection, have been included in the design. The IRS2158D is available in both 16-pin PDIP and 16-pin narrow body SOIC packages.

IRS2158D 主要特性:
Ballast control and half-bridge driver in one IC
Programmable half-bridge over-current protection
Programmable preheat frequency
Programmable preheat time
Programmable ignition ramp
Programmable run frequency
Closed-loop ignition current regulation
Voltage-controlled oscillator (VCO)
Programmable deadtime
End-of-life window comparator pin
Internal 60-event current sense up/down fault counter
Lamp removal/auto-restart shutdown pin
Brownout protection
Low offset op amp
Internal bootstrap MOSFET
Internal 15.6 V zener clamp diode on Vcc
Micropower startup (250 μA)
Latch immunity and ESD protection

IRS2158D 典型应用:
Fluorescent lamp ballast dimming (<5%)



图1.IRS2158D功能方框图
IRS2158D参考设计套件
The IRPLDIM3 reference design kit consists of a high power factor wide input voltage range dimming Fluorescent ballast, with a fully isolated 0 to 10V control interface, driving a single T5 28 W rapid start linear lamp. The design contains an EMI filter, active power factor correction and a dimming ballast control circuit using the PDIP16 version of IRS2158D. This demo board is intended to help with the evaluation of the IRS2158D dimming ballast control IC, demonstrate PCB layout techniques and serve as an aid in the development of production ballasts using the IRS2158D.

IRS2158D参考设计主要特性:
Drives 1 x 28W TL5 Lamp
Input Voltage: 90-305Vac
High Power Factor/Low THD
High Frequency Operation
Lamp Filament Preheating
Lamp Fault Protection with Auto-Restart
Low AC Line/Brownout Protection
End of Lamp Life Shutdown
IRS2158D HVIC Ballast Controller



图2. IRS2158D参考设计外形图



图3.IRS2158D参考设计IRPLDIM3方框图



图4.IRPLDIM3电路图( 采用IRS2158D, 单个灯,电压模式加热)
材料清单:灯类型:TL5/28W,线路输入电压: 90-305 VAC