Datasheet > RS2136PP

RS2136PP

更新时间： 2022-05-06 23:47:55

品牌	Logo	应用领域
ORISTER		开关
页数	文件大小	规格书
10页	385K
描述
High Precision CC/CV PrimaryâSide PWM Power Switch

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RS2136PP 数据手册

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RS2136

High Precision CC/CV Primary‐Side PWM Power Switch

General Description

RS2136 is a high performance offline PWM Power switch for low power AC/DC charger and adaptor applications. It operates in primary‐

side sensing and regulation. Consequently, opto‐coupler and 431 could be eliminated. Proprietary Constant Voltage (CV) and Constant

Current (CC) control is integrated as shown in the Fig.1.

In CC control, the current and output power setting can be adjusted externally by the sense resistor RS at CS pin. In CV control, multi‐

mode operations are utilized to achieve high performance and high efficiency. In addition, good load regulation is achieved by the built‐

in cable drop compensation. Device operates in PFM in CC mode as well at large load condition and it operates in PWM with frequency

reduction at light/medium load.

RS2136 offers power on soft start control and protection coverage with auto‐recovery features including Cycle‐by‐Cycle current limiting,

VDD OVP, VDD clamp and UVLO. Excellent EMI performance is achieved with Frequency Jiggling.

Features

Applications

●

5% Constant Voltage Regulation, 5% Constant Current

Regulation at Universal AC input

Primary‐side Sensing and Regulation Without 431 and Opto‐

coupler

Power on Soft‐start

●

Cell Phone Charger

Digital Cameras Charger

Small Power Adaptor

Auxiliary Power for PC, TV etc.

Linear Regulator/RCC Replacement

●

Built‐in Leading Edge Blanking (LEB)

Cycle‐by‐Cycle Current Limiting

VDD Under Voltage Lockout with Hysteresis (UVLO)

Programmable CV and CC Regulation

Adjustable Constant Current and Output Power Setting

Built‐in Secondary Constant Current Control with Primary Side

Feedback

●

Built‐in adaptive current peak regulation

Built‐in Primary winding inductance compensation

Program cable drop compensation

VDD OVP and VDD Clamp

Available in an DIP‐8 Package

RoHS Compliant and 100% Lead (Pb)‐Free and Green (Halogen

Free with Commercial Standard)

Fig.1. Typical CC/CV Curve

DS‐RS2136‐03 September, 2009

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