湖人半导体（深圳）有限公司

OB2520 高精度CC / CV主面PWM控制器

OB2520MP描述

OB2520 is a high performance offline PSR controller for low power AC/DC charger and adapter

applications. It operates in primary-side sensing and regulation. Consequently, opto-coupler and

TL431 could be eliminated.

OB2520是低功耗高性能控制器脱机PSR AC / DC充电器和适配器的应用。在初级侧感测和监管。

因此,opto-coupler TL431可以被消除。

OB2520MP特点

Ultra Low Standby Power ±5%

Constant Voltage Regulation at Universal AC input

High precision Constant Current Regulation at Universal AC input

Primary-side Sensing and Regulation Without TL431 and Opto-coupler

Programmable CV and CC Regulation

Built-in Primary winding inductance compensation

Programmable Cable Drop Compensation

Driver BJT Switch

Ultra Low Start-up Current (Typ. 1uA)

VDD Over Voltage Protection

Built-in Feedback Loop Open Protection

Built-in Short Circuit Protection

Built-in Leading Edge Blanking (LEB)

Cycle-by-Cycle Current Limiting

VDD Under Voltage Lockout with Hysteresis (UVLO)

Available in SOT23-6 package, RoHS compliant

超低备用电源

恒压调节在通用交流输入±5%

高精度恒流调节在通用交流输入

没有TL431和Opto-coupler初级侧感测和监管

可编程的简历和CC的监管

内置的初级绕组电感补偿

可编程电缆下降补偿

司机是机器开关

超低的启动电流(Typ 1 ua)。

VDD过电压保护

内置反馈回路打开保护

内置短路保护

内置的前沿消隐(1)

逐周期限流

与磁滞VDD欠压锁定(UVLO)

在SOT23-6包可用,通过无铅

OB2520MP应用

Cell Phone Charger

PMP Adapter/Charger

Small Power Adapter

Auxiliary Power for PC, TV etc.

Linear Regulator/RCC Replacement

手机充电器

PMP适配器/充电器

小的电源适配器

辅助电源,电脑,电视等。