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ML4818 数据表 (PDF) - Micro Linear Corporation

ML4818 Datasheet PDF - Micro Linear Corporation
部件名 ML4818
下载  ML4818 下载

文件大小   230.68 Kbytes
  12 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 Phase Modulation/Soft Switching Controller

ML4818 Datasheet (PDF)

Go To PDF Page 下载 数据表
ML4818 Datasheet PDF - Micro Linear Corporation

部件名 ML4818
下载  ML4818 Click to download

文件大小   230.68 Kbytes
  12 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 Phase Modulation/Soft Switching Controller

ML4818 数据表 (HTML) - Micro Linear Corporation

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ML4818 产品详情

GENERAL DESCRIPTION

The ML4818 is a complete phase modulation control IC suitable for full bridge soft switching converters. Unlike conventional PWM circuits, the phase modulation technique allows for zero-voltage switching transitions and square wave drive across the transformer. The IC modulates the phases of the two sides of the bridge to control output power.

The ML4818 can be operated in current mode. The delay times for the outputs are externally programmable to allow the zero-voltage switching transitions to take place.

Pulse-by-pulse current limit, integrating fault detection, and soft start reset are provided. The under-voltage lockout circuit features a 6V hysteresis with a low starting current to allow off-line start up with a low power bleed resistor. A shutdown function powers down the IC, putting it into a low quiescent state.



FEATURES

■ Full bridge phase modulation zero voltage switching circuit with programmable ZV transition times

■ Constant frequency operation to 500kHz

■ Current mode operation

■ Cycle-by-cycle current limiting with integrating fault detection and restart delay

■ Precision buffered 5V reference (+1%)

■ Four 1.5A peak current totem-pole output drivers

■ Under-voltage lockout circuit with 6V hysteresis

■ Power DIP package allows higher dissipation

* Some Packages Are Obsolete)



 




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