参数资料
型号: IRPLHID2
厂商: International Rectifier
文件页数: 7/30页
文件大小: 0K
描述: KIT DESIGN BALLAST IRS2573D
标准包装: 1
系列: *
主要目的: 照明,镇流器控制
嵌入式:
已用 IC / 零件: *
主要属性: *
次要属性: *
已供物品:
5. Functional Description
HID lamps have unique electrical characteristics, and require a careful control method.
Specifically, they require a high voltage for ignition, typically 3 kV to 4 kV, current
limitation during warm-up, and constant power control during running. It is important to
tightly regulate lamp power with respect to lamp voltage to minimize lamp-to-lamp color
and brightness variations. Also, HID lamps should be driven using an AC-voltage to
avoid mercury migration, and at a low frequency, typically less than 200 Hz, to prevent
lamp damage or explosion due to acoustic resonance. All of these requirements are
integrated in the IRS2573D.
Figure 5.1: HID lamp ignition, warm-up and running modes
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, current limitation 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.
www.irf.com
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