LED驱动IC-隔离

WS3252是一款适用于低功率AC/DC电池充电器和电源适配器的高集成度和高性能的离线式PWM控制器。WS3252采用原边反馈控制，使系统应用中可以省去TL431和光耦，降低了成本。全电压输入范围内恒压精度能保持在±5%以内。\n\n在CC控制时，通过CS端的采样电阻Rs可调整输出功率和电流。在CV控制时，多模式控制实现了高性能和高效率，而且，通过内置的可编程输出线压降补偿实现了好的负载调整率。芯片在重载和CC控制时工作在PFM模式，在轻载和中载时工作在PWM模式，并且频率也会降低。WS3252提供了软启动功能和多种全面的可恢复保护模式，其中包括：逐周期电流限制保护（OCP）、VCC电 ● 低启动电流（5uA）。\n● 低工作电流（2mA）。\n● 全电压范围内CV精度保持在±5%以内。\n● 原边反馈技术使系统节省TL431和光耦。\n● 可编程的CV、CC。\n● 内置原边绕组电感补偿。\n● 可编程的输出线压降补偿。\n● 内置软启动功能。● 内置前沿消隐。\n● 逐周期电流限制保护（OCP）。\n● VCC过压嵌位保护。\n● 低电压关闭功能（UVLO）。\n● 栅驱动输出电压嵌位（12V）。\n● 频率抖动功能及软驱动技术。\n● 待机功耗小于100mW。;

WS3252 High Precision CC/CV Primary-Side PWM Controller

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原边控制高精度恒流/恒压PWM控制器

原边控制高精度恒流/恒压PWM控制器

Quad Gated Non-Inverting Power Driver

Description The CA3252 is used to interface low-level logic to high current loads. Each Power Driver has four inverting switches consisting of an inverting logic input stage and an inverting low-side driver output stage. All inputs are 5V TTL/CMOS logic compatible and have a common Enable input

Quad Gated Non-Inverting Power Driver

Description The CA3252 is used to interface low-level logic to high current loads. Each Power Driver has four inverting switches consisting of an inverting logic input stage and an inverting low-side driver output stage. All inputs are 5V TTL/CMOS logic compatible and have a common Enable input

Quad Gated Non-Inverting Power Driver

Description The CA3252 is used to interface low-level logic to high current loads. Each Power Driver has four inverting switches consisting of an inverting logic input stage and an inverting low-side driver output stage. All inputs are 5V TTL/CMOS logic compatible and have a common Enable input

Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs

GENERAL DESCRIPTION The DS3251 (single), DS3252 (dual), DS3253 (triple), and DS3254 (quad) line interface units (LIUs) perform the functions necessary for interfacing at the physical layer to DS3, E3, or STS-1 lines. Each LIU has independent receive and transmit paths and a built-in jitter attenu

CMOS System Reset

Outline This IC is a system reset IC developed using the CMOS process. Super low consumption current of 0.25µA typ. has been achieved through use of the CMOS process. Also, detection voltage is high precision detection of ±2. Features 1. Super low consumption current 0.25µA typ. (when VDD