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LT1248CS#TRPBF

厂商:
Linear
类别:
功率控制
包装:
-
封装:
SO
无铅情况/ROHS:
无铅
描述:
Power Factor Controller

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  • 参数
  • 描述
  • 文档
参数 数值
Comments Power Factor Controller
Extended Temp C
Min Operating Threshold (V) 15.5
Vin Range 11.5-25
Max Iout (mA) 1500
Features Power Factor Corrector in 8 Leads
Packages SO-16, N-16
Frequency (kHz) 200
Vref (V) 7.5
Isupply (mA) 1.5
Featured yes
Date Added 1984-01-01
Price 1k * $3.60 (LT1248CN)
New no

特点
High Power Factor Over Wide Load Range with Line Current Averaging
International Operation Without Switches
Instantaneous Overvoltage Protection
Minimal Line Current Dead Zone
Typical 250μA Start-Up Supply Current
Rejects Line Switching Noise
Synchronization Capability
Low Quiescent Current: 9mA
Fast 1.5A Peak Current Gate Driver

典型应用

描述
描述 The LT?1248 provides active power factor correction for universal off-line power systems. By using fixed high frequency PWM current averaging, without the need for slope compensation, the LT1248 achieves far lower line current distortion with a smaller magnetic element than systems that use either peak-current detection or zero current switching approaches in both continuous and discontinuous modes of operation. The LT1248 uses a multiplier containing a square gain function from the voltage amplifier to reduce the AC gain at light output load and thus maintains low line current distortion and high system stability. The LT1248 also provides filtering capability to reject line switching noise which can cause instability when fed into the multiplier. Line current dead zone is minimized with low bias voltage at the current input to the multiplier. The LT1248 provides many protection features including peak current limiting and overvoltage protection, and can be operated at frequencies as high as 300kHz.

产品选型卡
文档名称 文档类型 软件 描述
LT1248CS#TRPBFPDF下载 点击下载 点击下载 Voltage Monitors & Supervisors Quick Guide
数据表 (英文)
文档名称 文档类型 软件 描述
LT1248CS#TRPBFPDF下载 点击下载 点击下载 LTC1536 - Precision Triple Supply Monitor for PCI Applications
可靠性数据
文档名称 文档类型 软件 描述
LT1248CS#TRPBFPDF下载 点击下载 点击下载 R351 Reliability Data