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UC2872

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带有开路日光灯检测电路的谐振式日光灯镇流器控制器

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UC2872

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产品详情

Vin (min) (V) 4.5 Vin (max) (V) 24 Operating temperature range (°C) -40 to 85 Rating Catalog
Vin (min) (V) 4.5 Vin (max) (V) 24 Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Controls Different Types of Lamps: Cold Cathode Fluorescent, Neon, and Gas Discharge
  • Zero Voltage Switching (ZVS) of Push-Pull Drivers
  • Accurate Control of Lamp Current
  • Variable Lamp Intensity Control
  • 1\xB5A Disable Current
  • 4.5V to 24V Operation
  • Open Lamp Detection Circuitry
  • Controls Different Types of Lamps: Cold Cathode Fluorescent, Neon, and Gas Discharge
  • Zero Voltage Switching (ZVS) of Push-Pull Drivers
  • Accurate Control of Lamp Current
  • Variable Lamp Intensity Control
  • 1\xB5A Disable Current
  • 4.5V to 24V Operation
  • Open Lamp Detection Circuitry

The UC3872 is a resonant lamp ballast controller optimized for driving cold cathode fluorescent, neon, and other gas discharge lamps. The resonant power stage develops a sinusoidal lamp drive voltage, and minimizes switching loss and EMI generation. Lamp intensity adjustment is accomplished with a buck regulator, which is synchronized to the external power stage\x92s resonant frequency. Suitable for automotive and battery powered applications, the UC3872 draws only 1\xB5A when disabled.

Soft start and open lamp detect circuitry have been incorporated to minimize component stresses. Open lamp detection is enabled at the completion of a soft start cycle. The chip is optimized for smooth duty cycle control to 100%.

Other features include a precision 1.2% reference, undervoltage lockout, and accurate minimum and maximum frequency control.

The UC3872 is a resonant lamp ballast controller optimized for driving cold cathode fluorescent, neon, and other gas discharge lamps. The resonant power stage develops a sinusoidal lamp drive voltage, and minimizes switching loss and EMI generation. Lamp intensity adjustment is accomplished with a buck regulator, which is synchronized to the external power stage\x92s resonant frequency. Suitable for automotive and battery powered applications, the UC3872 draws only 1\xB5A when disabled.

Soft start and open lamp detect circuitry have been incorporated to minimize component stresses. Open lamp detection is enabled at the completion of a soft start cycle. The chip is optimized for smooth duty cycle control to 100%.

Other features include a precision 1.2% reference, undervoltage lockout, and accurate minimum and maximum frequency control.
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类型 标题 下载最新的英语版本 日期
* 数据表 Resonant Lamp Ballast Controller 数据表 1999年 9月 5日
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 英语版 2020年 9月 21日
应用手册 U-141 Resonant Fluorescent Lamp Converter Provides Efficient and Compact 1999年 9月 5日

设计和开发

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封装 引脚 下载
SOIC (DW) 16 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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