副边控制六级能效恒压系列产品

SP6620HP是一颗电流模式PWM控制芯片，内置功率MOSFET。\n\n      SP6620HP在PWM模式下工作于固定频率，这个频率是由内部精确设定的。在空载或者轻载时，工作频率由IC内部调整。芯片可以工作在绿色模式，以此来减小轻载时的损耗，提高整机的工作效率，SP6620HP在启动和工作时只需要很小的电流，可以在启动电路中使用一个很大的电阻，以此来进一步减小待机时的功耗。芯片内置有斜坡补偿电路，当电路工作于大占空比时，避免次谐波振荡的发生，改善系统的稳定性。内置有前沿消隐时（Leading-edge blanking time），消除缓冲网络中的二极管反向恢复电流对电路的影响。SP 230Vac输入待机功耗小于75mW\n内置650V高压功率管\n4ms软启动用来减少MOSFET上Vds的应力\n抖频功能，改善EMI性能\n跳频模式，改善轻载效率，减小待机功耗\n无噪声工作\n固定65KHz开关频率\n内置同步斜坡补偿\n低启动电流，低工作电流\n内置前沿消隐(LEB)功能\n过载保护（OLP），逐周期限流保护（OCP）\n过压保护（OVP），欠压保护（UVLO），VDD电压箝位\n过温保护（OTP）\nDIP8无铅封装;

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65 MSPS Digital Receive Signal Processor

GENERAL DESCRIPTION The AD6620 is a digital receiver with four cascaded signal-processing elements: a frequency translator, two fixed-coefficient decimating filters, and a programmable coefficient decimating filter. All inputs are 3.3 V LVCMOS compatible. All outputs are LVCMOS and 5 V TTL compat

65 MSPS Digital Receive Signal Processor

GENERAL DESCRIPTION The AD6620 is a digital receiver with four cascaded signal-processing elements: a frequency translator, two fixed-coefficient decimating filters, and a programmable coefficient decimating filter. All inputs are 3.3 V LVCMOS compatible. All outputs are LVCMOS and 5 V TTL compat

12-CHARACTER 4-LINE DOT MATRIX LCD CONTROLLER

■ GENERAL DESCRIPTION The NJU6465/6620 is a Dot Matrix LCD controller Driver for 12-character 4-line with icon display(128-icon) maximum by itself. It contains voltage Tripler, bleeder resistance to generate about triple voltage (9V) and the bias for LCD Driving waveform internally from single p

12-CHARACTER 4-LINE DOT MATRIX LCD CONTROLLER

■ GENERAL DESCRIPTION The NJU6465/6620 is a Dot Matrix LCD controller Driver for 12-character 4-line with icon display(128-icon) maximum by itself. It contains voltage Tripler, bleeder resistance to generate about triple voltage (9V) and the bias for LCD Driving waveform internally from single p

subminiature t-3/4 5-volt resistor lamps

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