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NCP1236
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  • 2009年
    發布時間:2009

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NCP1236 中文资料規格參數

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産品概述

用于回扫转换器的固定频率电流模式控制器 Fixed Frequency Current Mode Controller for Flyback Converters

The NCP1236 is a new fixed?frequency current?mode controller featuring Dynamic Self?Supply (DSS). This device is pin?to?pin compatible with the previous NCP12xx families.

The DSS function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal startup current source to supply the controller during transients.

Finally, due to a careful design, the precision of critical parameters is well controlled over the entire temperature range (?40?C to +125?C).

**Features**

? Fixed?Frequency Current?Mode Operation with Built?In Ramp Compensation

? 65 kHz or 100 kHz Oscillator Frequency

? Frequency Foldback then Skip Mode for Maximized Performance in Light Load and Standby Conditions

? Timer?Based Overload Protection with Latched (option A) or Auto?Recovery (option B) Operation, Shortened Overload Timer for Increased Safety (options C and D)

? High?voltage Current Source with Brown?Out

detection and Dynamic Self?Supply, Simplifying the Design of the VCC Capacitor

? Frequency Modulation for Softened EMI Signature, including during Frequency Foldback mode

? Adjustable Overpower Compensation

? Latch?off Input for Severe Fault Conditions, Allowing Direct Connection of an NTC for Overtemperature Protection (OTP)

? VCC Operation up to 28 V, with Overvoltage Detection

? 500 mA Peak Source / Sink Current Drive Capability

? 4.0 ms Soft?Start

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NCP1236 數據手冊

NCP1236 數據手冊Datasheet PDF 7
下載 34 页,238 KB

NCP1236 相关搜索

NCP1236品牌廠家:ON Semiconductor(安森美)NCP1236渠道分銷商:0家,现货库存数量:20 PCS,NCP1236价格参考:?0元。ON Semiconductor(安森美) NCP1236参数,NCP1236中文資料和说明书PDF下載(34页,238KB),您可以在NCP1236规格书Datesheet數據手冊中,查到NCP1236使用方法,NCP1236典型电路教程。NCP1236系列中文手册中包含NCP1236说明介绍,用户中文手册NCP1236手册PDF下載(34页,238KB)。您可在采芯網下載NCP1236产品选型手册,NCP1236产品设计参考手册,NCP1236用户编程技术手册,NCP1236开发手册。

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