Ir IRPLHID2 70W HID Light Town Lander Reference Design

Key words: IR, IRPLHID2, HID lamps, ballasts IR's 70W HID (xenon lamp) ballast reference design uses IRS2573D IRPLHID2 device, the input voltage 185V-265V, can drive lamps 1 x 70W HID, having a high power factor / low total harmonic distortion, can control the starter, low square wave operation, the lamp current and power can be controlled, open and non-light protection. IRS2573D the sake corpus is protected 600V HID controller can drive all types of HID lamp, is provided inside the starter circuit, heating, operation and fault protection mode. This article describes the main features IRS2573D, a block diagram, a block diagram of the application and 70W HID lamp ballast IRPLHID2 reference design using IRS2573D main index, the reference design and a circuit diagram of a block diagram, and bill of materials and PCB layout. 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 It has also been included in the design. IRS2573D main features: • 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 2012-9-6 13:21:42 upload Download attachment (40.53 KB) 1.IRS2573D block diagram of FIG. 2012-9-6 13:21:43 upload Download attachment (32.2 KB) 2.IRS2573D application diagram. Using a 70W HID lamp ballast IRS2573D IRPLHID2 Reference Design 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 reference design key features:  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 2012-9-6 13:21:45 upload Download attachment (85.75 KB)