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ML4812CP 数据表 (PDF) - Micro Linear Corporation

ML4812CP Datasheet PDF - Micro Linear Corporation
部件名 ML4812CP
下载  ML4812CP 下载

文件大小   215.75 Kbytes
  16 Pages
制造商  MICRO-LINEAR [Micro Linear Corporation]
网页  http://www.microlinear.com
标志 MICRO-LINEAR - Micro Linear Corporation
功能描述 Power Factor Controller

ML4812CP Datasheet (PDF)

Go To PDF Page 下载 数据表
ML4812CP Datasheet PDF - Micro Linear Corporation

部件名 ML4812CP
下载  ML4812CP Click to download

文件大小   215.75 Kbytes
  16 Pages
制造商  MICRO-LINEAR [Micro Linear Corporation]
网页  http://www.microlinear.com
标志 MICRO-LINEAR - Micro Linear Corporation
功能描述 Power Factor Controller

ML4812CP 数据表 (HTML) - Micro Linear Corporation

Back Button ML4812CP Datasheet HTML 1Page - Micro Linear Corporation ML4812CP Datasheet HTML 2Page - Micro Linear Corporation ML4812CP Datasheet HTML 3Page - Micro Linear Corporation ML4812CP Datasheet HTML 4Page - Micro Linear Corporation ML4812CP Datasheet HTML 5Page - Micro Linear Corporation ML4812CP Datasheet HTML 6Page - Micro Linear Corporation ML4812CP Datasheet HTML 7Page - Micro Linear Corporation ML4812CP Datasheet HTML 8Page - Micro Linear Corporation ML4812CP Datasheet HTML 9Page - Micro Linear Corporation ML4812CP Datasheet HTML 10Page - Micro Linear Corporation Next Button 

ML4812CP 产品详情

GENERAL DESCRIPTION
The ML4812 is designed to optimally facilitate a peak current control boost type power factor correction system. Special care has been taken in the design of the ML4812 to increase system noise immunity. The circuit includes a precision reference, gain modulator, error amplifier, over voltage protection, ramp compensation, as well as a high current output. In addition, start-up is simplified by an under-voltage lockout circuit with 6V hysteresis.
In a typical application, the ML4812 functions as a current mode regulator. The current which is necessary to terminate the cycle is a product of the sinusoidal line voltage times the output of the error amplifier which is regulating the output DC voltage. Ramp compensation is programmable with an external resistor, to provide stable operation when the duty cycle exceeds 50%.

FEATURES
■ Precision buffered 5V reference (±0.5%)
■ Current-input gain modulator reduces external
   components and improves noise immunity
■ Programmable ramp compensation circuit
■ 1A peak current totem-pole output drive
■ Overvoltage comparator helps prevent output
   voltage “runaway”
■ Wide common mode range in current sense
   comparators for better noise immunity
■ Large oscillator amplitude for better noise immunity




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