基于IRS2573D设计的70W HID灯参考技术
来源: 作者: 发布时间:2014-12-28 18:35:12 浏览量:IRS2573D是全集成全保护的600V氙气灯(HID)控制器,能驱动所有类型的氙气灯(HID)灯. IRS2573D包括点火时间控制,恒定灯功率控制,可编程全桥运行频率,可编程过压和欠压保护以及可编程过流保护. 此外,器件还集成了600V高边和低边全桥驱动器,以及600V高边降压驱动器等.本文介绍IRS2573D 主要特性,功能方框图,以及典型应用电路和70W HID灯参考设计电路图,主要指标,材料清单和PCB布局图.
The IRS2573D is a fully-integrated, fully-protected 600V HID control IC designed to drive all types of HID lamps.
Internal circuitry provides control for ignition, warm-up, runn电感器生产ing and fault operating modes. The IRS2573D features include ignition timing control, constant lamp power control, programmable full-bridge running frequency, programmable over 电感厂家and under-voltage protection and programmable over-current protection. Advanced protection features such as failure of a lamp to ignite, open load, short-circuit and a programmable fault counter have also been included in the design.
IRS2573D 主要特性:
Buck, full-bridge and lamp control in one IC
Continuous/critical-conduction mode buck cont一体成型电感rol
600V high and low-side full-bridge driver
600V high-side buck Driver
Low-side ignition FET gate driver
Integrated bootstrap FETs for full-bridge high-side drivers
Constant lamp power control
Programmable buck cycle-by-cycle over-current protection
Programmable buck output voltage limitation
Programmable lamp current limitation
Programmable full-bridge frequency
Fault latch reset input
Programmable ignition counter (21sec/64sec typical)
Programmable lamp under-voltage fault counter (197sec typical) for short-circuit or lamp does not warm-up
Fast transient lamp under-voltage event counter (16384 typical) for arc instability or end-of-life
Programmable lamp over-voltage fault counter (787sec typical) for open-circuit or lamp extinguishes
Programmable good fault reset counter (2730sec typical)
Micro-controller compatible timing thresholds
Internal 15.6V zener clamp diode on VCC
Micropower startup (150μA)
Latch immunity and ESD pr电感生产厂家otection on all pins
图1.IRS2573D功能方框图
图2.IRS2573D典型应用电路图
70W HID灯IRPLHID2参考设计
The IRPLHID2 reference design kit consists of a complete ballast solution for a 70W HID lamp. The design contains an EMI filter, low voltage power supply, active power factor correction and a ballast control circuit using the IRS2573D. This demo board is intended to help with the evaluation of the IRS2573D HID ballast control IC, demonstrate PCB layout techniques and serve as an aid in the development of production ballasts using the IRS2573D.
IRPLHID2参考设计主要特性:
Drives 1 x 70W HID lamp
Input voltage range: 185-265 VAC
High Power Factor / Low Total Harmonic Distortion
Controlled ignition
Low frequency square wave operation
Lamp power and current control
Open circuit an磁芯电感器d no-lamp protection
Short circuit and lamp failure to warm-up protection
Lamp end-of-life shutdown
IRS2573DSPbF HID Ballast Control IC
IRPLHID2参考设计主要指标:
图3.IRPLHID2参考设计外形图
图4.IRPLHID2参考设计方框图
图4.IRPLHID2参考设计电路图(1)
图5.IRPLHID2参考设计电路图(2)
IRPLHID2参考设计材料清单(BOM):
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