基于IRS2573D設(shè)計的70W HID燈參考技術(shù)

IRS2573D是IR 公司的全集成全保護的600V氙氣燈(HID)控制器,能驅(qū)動所有類型的氙氣燈(HID)燈. IRS2573D包括點火時間控制,恒定燈功率控制,可編程全橋運行頻率,可編程過壓和欠壓保護以及可編程過流保護. 此外,器件還集成了600V高邊和低邊全橋驅(qū)動器,以及600V高邊降壓驅(qū)動器等.本文介紹IRS2573D 主要特性,功能方框圖,以及典型應(yīng)用電路和70W HID燈參考設(shè)計電路圖,主要指標,材料清單和PCB布局圖.

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


圖1.IRS2573D功能方框圖

圖2.IRS2573D典型應(yīng)用電路圖

70W HID燈IRPLHID2參考設(shè)計

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.

IRPLHID2參考設(shè)計主要特性:

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 and no-lamp protection

Short circuit and lamp failure to warm-up protection

Lamp end-of-life shutdown

IRS2573DSPbF HID Ballast Control IC

IRPLHID2參考設(shè)計主要指標:



圖3.IRPLHID2參考設(shè)計外形圖

圖4.IRPLHID2參考設(shè)計方框圖

圖4.IRPLHID2參考設(shè)計電路圖(1)

圖5.IRPLHID2參考設(shè)計電路圖(2)

IRPLHID2參考設(shè)計材料清單(BOM):



圖6.IRPLHID2參考設(shè)計PCB布局圖

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