性开放网交友网站

    <big id="129hs"></big>
  1. <th id="129hs"><option id="129hs"></option></th>

    <code id="129hs"><small id="129hs"></small></code>
    <object id="129hs"><nobr id="129hs"></nobr></object>

    <th id="129hs"><video id="129hs"></video></th>
  2. <strike id="129hs"></strike>
  3. <tr id="129hs"><font id="129hs"><mark id="129hs"></mark></font></tr>
  4. <code id="129hs"><small id="129hs"></small></code>
    <strike id="129hs"></strike>
    <code id="129hs"></code>

    KP1222

    Triac Dimmable APFC BuckBoost LED Power Switch
    Download

    General Description

    KP1222 is a family of highly integrated Constant Current LED power switch, which utilizes Quasi-Resonant Primary Side Regulation (PSR) topology with active PFC control for high PF and high efficiency.

    KP1222 integrates demagnetization detection circuit, with the combination of integrated high voltage startup and IC power supply circuit, which eliminates the transformer auxiliary winding and power supply. The IC adopts accurate current sensing and close loop constant current control to achieve high precision CC control with excellent line and load regulation. Additionally KP1222 utilized a particular dimmable control scheme to maintain good triac dimming performance.

    KP1222 integrates functions and protections of Under Voltage Lockout (UVLO), Cycle-by-cycle Current Limiting (OCP), Thermal Fold-back (OTP), Output Over Voltage Protection (OVP), LED Open/Short Protection, etc.


    Features

    l   Low Cost Triac Dimmable Solution

    l   Single Winding Inductor Design

    l   Active Power Factor Correction

    l   High PF Value >0.9

    l   High Output Current  Accuracy <±3%

    l   Fast Startup Time <200ms

    l   Built-in HV MOSFET and Startup Circuit

    l   Proprietary OVP Control

    l   QR Operation Mode for High Efficiency

    l   Ultra-low Operation Current

    l   Good Line and Load Regulation

    l   Built-in Protections:

    n  Cycle by Cycle Current Limit (OCP)

    n  LED Open and Short Protection

    n  Leading Edge Blanking(LEB)

    n  Thermal Fold-back (OTP)

    l   Package Available with SOP-7 


    Applications

    l   Triac Dimmable LED Driver


    Pin Configuration

    Typical Application Circuit

    Ordering Information

    Part NumberDescription
    KP1222SPASOP-7, Pb free in T&R, 4000Pcs/Reel


    Back
    性开放网交友网站