Highly Integrated, Feature-Rich IRS2573D HID Ballast Control IC

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PRESS RELEASE
Highly Integrated, Feature-Rich IRS2573D HID
Ballast Control IC
DATA SHEETS
HI-RES GRAPHIC
The IRS2573D 600V IC combines a high-side,
dual-mode buck controller together with a
full-bridge driver. The devices novel buck
circuitry enables continuous-conduction mode
control during lamp warm-up and
critical-conduction mode during steady state
running. The full-bridge driver includes all
high- and low-side gate driver outputs as well as
integrated bootstrap MOSFETs for the high-side
supply voltages.
Lighting PAGE

• Advantages
• Because the IRS2573D is a fully-integrated IC,
  HID ballast design requires minimal external
  components and no external circuitry for
  protection.
• The IRS2573D includes ignition control, constant
  lamp power and current limitation control, and
  complete ballast and lamp fault protection so
  that no external circuitry to perform these
  functions are required.
• By offering complete HID electronic ballast
  system know-how in a chip, the highly integrated,
  feature-rich IRS2573D allows companies that
  already have a market presence in lighting to
  enter the HID market very rapidly with minimal
  know-how.
• The IRS2573D offers comprehensive fault detection
  and fault timer circuitry to detect open circuit,
  short circuit, failure to ignite, failure to
  warm-up and lamp end-of-life fault conditions, as
  well as lamp ignition enabler and timer.

• Features
• 600V buck driver 600V full-bridge driver lamp
  control in one IC
• Programmability of all necessary time-constant
• Low side ignition GET gate driver with timer
• Constant lamp power and current limitation
  control
• Integrated protection features
• Short/open circuit
• Lamp does not warm up
• Lamp failed to ignite
• Lamp end-of-life
• Lamp arc instability
• Micro-power start-up