Infineon Technologies IRS2573

Description

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 counterhave also been included in the design.

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 ESDrotection on all pins

Typical applications

• Fast Transient Under-Voltage Fault Counter
• IGBT/MOSFET Gate Drive
• Full-Bridge Control
• Undervoltage Lockout Protection
• Over Voltage Fault Counter
• Fault Reset
• Constant Power Control
• Good Counter
• Under Voltage Fault Counter
• Ignition Timer
• Current Limitation Control
• Buck Control

More information

• Datasheet
• IC product information