IR IRS2573D 全集成全保护600V 70W HID灯控制方案供参习.docxVIP

IR IRS2573D 全集成全保护600V 70W HID灯控制方案关键词：电源管理,HID灯,镇流器IR公司的IRS2573D 是全集成全保护600V HID灯控制集成电路，集成了点火时序控制，恒流灯功率控制，可编全桥运行频率，可编过压和欠压保护以及可编过流保护。器件还具有600V高边和低边全桥驱动器，600V高边降压驱动器，低边点火FET栅极驱动器。本文介绍了IRS2573D主要特性，方框图，典型应用电路图和70W HID镇流器主要特性，方框图，电路图，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 ICContinuous/critical-conduction mode buck control600V high and low-side full-bridge driver600V high-side buck DriverLow-side ignition FET gate driverIntegrated bootstrap FETs for full-bridge high-side driversConstant lamp power controlProgrammable buck cycle-by-cycle over-current protectionProgrammable buck output voltage limitationProgrammable lamp current limitationProgrammable full-bridge frequencyFault latch reset inputProgrammable ignition counter (21sec/64sec typical)Programmable lamp under-voltage fault counter (197sec typical) for short-circuit or lamp does not warm-upFast transient lamp under-voltage event counter (16384 typical) for arc instability or end-of-lifeProgrammable lamp over-voltage fault counter (787sec typical) for open-circuit or lamp extinguishesProgrammable good fault reset counter (2730sec typical)Micro-controller compatible timing thresholdsInternal 15.6V zener clamp diode on VCCMicropower startup (150μA)Latch immunity and ESD protection on all pins图1。IRS2573D方框图图2。IRS2573D典型应用电路图70W HID镇流器HID Ballast for 70W Lamp Using the IRS2573DThe IRPLHID2 reference design kit cons