APFC非隔离AC-DC

MT7840是一款高功率因数、非隔离LED驱动芯片。它通过采用浮地、高端检测、降压式开关电源的架构实现了全周期检测。通过内部集成的高压供电电路，MT7840节省了启动电阻和供电二极管，从而节省了成本。MT7840工作在准谐振模式，同时使效率和抗电磁干扰的性能都得到提升。\n\nMT7840内部集成了多重的保护功能，比如过压保护、过流保护、过温补偿等等，提高了可靠性，并且所有保护均具体自恢复功能。\n\n利用创新技术，MT7840的驱动能力与芯片供给电压无关，这可以大大提高系统的抗电磁干扰性能。 • 单级功率因数调制（功率因数>0.9）\n• 高压供电，无需启动及供电电路\n• 高精度的LED输出电流：±3%\n• 优异的线性调整度和负载调整度（±2%）\n• 准谐振工作模式\n• 多重保护机制\n• 支持Buck/Buck-Boost应用\n• SOP8封装;

Non-isolated APFC BUCK LED Driver

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HPF非隔离

MT7840F是一款高功率因数、非隔离LED驱动芯片。它采用浮地、高端检测，降压式开关电源的架构，实现了全周期检测。芯片内部集成高压供电电路，无需启动电阻和供电二极管，外围电路简单，系统成本低。\n\nMT7840F工作在准谐振模式，同时使效率和抗电磁干扰的性能都得到提升。\n\nMT7840F内部集成多重的保护功能，比如过压保护、过流保护、过温补偿等等，提高了可靠性，并且所有保护均具体自恢复功能。\n\nMT7840F的驱动能力与芯片供电电压无关，大大提高了系统的抗电磁干扰性能。 • 单级功率因数调制（功率因数>0.9）\n• 高压供电，无需启动及供电电路\n• 高精度的LED输出电流：±3%\n• 优异的线性调整度和负载调整度（±2%）\n• 输入低压降电流保护\n• 准谐振工作模式\n• 多重保护机制\n• 支持Buck/Buck-Boost应用\n• SOP8封装;

Analog Isolation Amplifier

Description The HCPL-7840 isolation amplifier provides accurate, electrically isolated and amplified representations of voltage and current. When used with a shunt resistor in the current path, the HCPL-7840 offers superior reliability, cost effectiveness, size and autoinsertability compared

Vertical Deflection Output Circuit

The LA7840 is a vertical deflection output IC for high-definition TV and CRT displays in systems that use a bus control system signal-processing IC. This IC can directly drive (including the DC component) the deflection yoke from the sawtooth wave output from the bus control system signal-processi

10-BIT, 10 MSPS, 100 mW A/D CONVERTER

GENERAL DESCRIPTION The SPT7840 is a 10-bit monolithic, low-cost, ultralow-power analog-to-digital converter capable of minimum word rates of 10 MSPS. The on-chip track-and-hold function assures very good dynamic performance without the need for external components. The input drive requirements a

10-BIT, 10 MSPS, 100 mW A/D CONVERTER

GENERAL DESCRIPTION The SPT7840 is a 10-bit monolithic, low-cost, ultralow-power analog-to-digital converter capable of minimum word rates of 10 MSPS. The on-chip track-and-hold function assures very good dynamic performance without the need for external components. The input drive requirements a

10-BIT, 10 MSPS, 100 mW A/D CONVERTER

GENERAL DESCRIPTION The SPT7840 is a 10-bit monolithic, low-cost, ultralow-power analog-to-digital converter capable of minimum word rates of 10 MSPS. The on-chip track-and-hold function assures very good dynamic performance without the need for external components. The input drive requirements a