Отправил alexfloka.Дата добавления 24.09.2011 (7313 прочтений)
High Precision CC/CV Primary-Side PWM Power Switch
Features . Up to 5% Precision for Constant Voltage Regulation and Constant Current Regulation at Universal AC input . Primary-side Sensing and Regulation Without TL431 and Opto-coupler . Flyback Topology In DCM Operation Soft-start . Built-in Leading Edge Blanking (LEB) . Frequency Jitter to Reduce System EMI . Programmable CV and CC Regulation . Adjustable Constant Current and Output Power Setting . Built-in Secondary Constant Current Control with Primary Side Feedback . Built-in Secondary Constant Voltage Sampling Controller . Program Cable Drop Compensation . Rich Protections For System Reliability including . VDD Under Voltage Lockout with Hysteresis (UVLO) . Cycle-by-Cycle Current Limiting and Peak Current Protection (OCP) . Over Temperature Protection (OTP) . VDD Over Voltage Protection (OVP) . VDD Clamp . Lead-free SOP-8L & DIP-8.
Applications . Cell Phone /Digital Cameras Charger . Small Power Adaptor . Auxiliary Power for PC, TV etc. . Linear Regulator/RCC Replacement
Чтобы защитить стержень от обгорания, его нужно обмазать тонким слоем смеси силикатного клея и сухой минеральной краски (окись железа, цинка и магния).