高性能原边控制离线LED控制器，具有有源PFC、NTC和PWM调光

MP4027是一款原边控制离线LED控制器，可为FCTSOT封装中的隔离式单级功率照明应用提供高功率因数和准确的LED电流。其专有的实时电流控制方法可通过原边信息准确控制LED电流，具有良好的线性和负载调整率。原边控制减少了副边反馈组件和光耦合器，从而大大简化了LED照明系统的设计。MP4027集成了功率因数校正功能，采用边界传导模式，减少了MOSFET开关损耗。MP4027还具有NTC 功能，支持 PWM 调光。\n\n MP4027 具有多种保护功能，大大提高了系统的稳定性和安全性。其保护功能包括过压保护（OVP）、短路保护（SCP）、原边过流保护（OCP）、欠压保护、逐周期限流 • 无需副边反馈电路的实时电流控制\n• 线性和负载调整率<2%\n• 过温电流折返（NTC）\n• PWM 调光功能\n• 通用输入电压上的高功率因数(=0.9)\n• 临界导通模式可实现高效率\n• 欠压保护\n• 过压保护\n• 短路保护\n• 过温保护\n• 原边过流保护\n• 逐周期电流限制\n• 输入欠压锁定保护（UVLO）\n• 采用 FCTSOT-8 封装;

Primary-Side Control, Offline LED Controller with Active PFC, NTC and PWM Dimming

文件：648.11 Kbytes Page：19 Pages

Universal Input, 7W Primary-side-control with Active PFC Offline WLED Driver Evaluation Board For A19 Bulb

文件：1.00608 Mbytes Page：13 Pages

Universal Input, 7W Primary-side-control with Active PFC Offline WLED Driver Evaluation Board For A19 Bulb

文件：1.14076 Mbytes Page：13 Pages

丝印代码：AHK；Primary-Side Control, Offline LED Controller with Active PFC, NTC and PWM Dimming

文件：648.11 Kbytes Page：19 Pages

Low Line Voltage, 10W High side Buck PFC Offline WLED Driver Evaluation Board

文件：769.87 Kbytes Page：12 Pages

封装/外壳：SOT-23-8 薄型，TSOT-23-8 包装：袋 描述：IC LED DRIVER OFFL PWM TSOT23-8 集成电路（IC） LED 驱动器

封装/外壳：SOT-23-8 薄型，TSOT-23-8 包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 描述：IC LED DRIVER OFFL PWM TSOT23-8 集成电路（IC） LED 驱动器

Dual JK flip-flop

DESCRIPTION The HEF4027B is a dual JK flip-flop which is edge-triggered and features independent set direct (SD), clear direct (CD), clock (CP) inputs and outputs (O,O). Data is accepted when CP is LOW, and transferred to the output on the positive-going edge of the clock. The active HIGH as

Dual JK flip-flop

DESCRIPTION The HEF4027B is a dual JK flip-flop which is edge-triggered and features independent set direct (SD), clear direct (CD), clock (CP) inputs and outputs (O,O). Data is accepted when CP is LOW, and transferred to the output on the positive-going edge of the clock. The active HIGH as

Dual JK flip-flop

DESCRIPTION The HEF4027B is a dual JK flip-flop which is edge-triggered and features independent set direct (SD), clear direct (CD), clock (CP) inputs and outputs (O,O). Data is accepted when CP is LOW, and transferred to the output on the positive-going edge of the clock. The active HIGH as

Silicon planar type

Silicon planar type For stabilization of power supply ■ Features • High reliability, achieved by the DHD structure • Allowing to insert to a 5 mm pitch hole • Finely divided zener-voltage rank • Sharp rising performance • Wide voltage range: VZ = 2.0 V to 39 V

Silicon planar type

Silicon planar type For stabilization of power supply ■ Features • High reliability, achieved by the DHD structure • Allowing to insert to a 5 mm pitch hole • Finely divided zener-voltage rank • Sharp rising performance • Wide voltage range: VZ = 2.0 V to 39 V