基于IRS2573D设计的70W HID灯参考技术
[10-10 20:39:48] 来源:http://www.88dzw.com 电源电路 阅读:8268次
文章摘要: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 driv
基于IRS2573D设计的70W HID灯参考技术,标签:电源电路,电路设计,http://www.88dzw.comIRS2573D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, running and fault operating modes. The IRS2573D features include ignition timing control, constant lamp power control, programmable full-bridge running frequency, programmable over 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 control
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 protection on all pins
图1.IRS2573D功能方框图
图2.IRS2573D典型应用电路图
图4.IRPLHID2参考设计电路图(1)
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