200W LCD TV SMPS L6562 + L6668 + L6565.

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Presentation transcript:

200W LCD TV SMPS L6562 + L6668 + L6565

200W LCD TV SMPS General Features Input Voltage range: 100 to 240Vac Output Voltages: 24V/6A 12V/3A 5V/4A 5VSB/200mA Power Factor Correction: Above 0.98 Low Standby < 3W at 5VSB @ 200mA High Efficiency, typical 86% at low line full load Synchronous rectification on 24V output. Controllable timing sequence 24V latched short circuit protection Hi-cup short circuit protection at other output voltages

L6562 - Power Factor Correction Transition Mode Control Very Precise Adjustable Output Over Voltage Protection Ultra-Low Startup Current (<70mA) ON-CHIP Filter ON Current Sense Disable Function 1% internal reference voltage -600mA/+800mA Totem Pole Gate Driver

L6668 - PWM Controller Current Mode Controller with sophisticated standby feature On board high voltage startup Low quiescent current (<2mA) Slope Compensation Pulse-by-pulse & Hiccup-Mode OCP Interface with PFC Controller Disable Function (on/off control) Latched Disable for OVP/OTP Function Programmable soft start

L6565 – Features Overview

Block Diagram L6565 L6668 24V/6A L6562 12V/3A Standby 5V/4A 5VSB/0.2A STTH8L06 EMI FILTER & RECTIFICATION L6562 + L6565 Discrete Syn-rect Drive Latched Short- Circuit Protection STW20NM50 STW11NM80Z STP80NF12 STPS10H100CT Standby 12V/3A STPS1545D + 5V/4A SB160 + 5VSB/0.2A STP9NK70ZFP L6668 + Standby