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OB2531Series |
High Precision
CC/CV PSR PWM Controller/Power Switch |
OB2531 is a high performance offline PWM Power switch for low
power AC/DC charger and adapter applications. It can achieve ±5% precision
constant voltage (CV) and high precision constant current (CC). It operates
in primary-side sensing and regulation. Consequently, opto-coupler and TL431
could be eliminated.
Features:
◆ ±5% constant voltage regulation
at universal AC input
◆ Primary-side sensing and
regulation without TL431 and opto-coupler
◆ Programmable CV and CC
regulation
◆ Adjustable constant current and output
power setting
◆ Built-in primary winding
inductance compensation
◆ Programmable cable drop
compensation
◆ Power on soft-start
◆ Built-in leading edge blanking
(LEB)
◆ Cycle-by-Cycle current limiting
◆ VDD under voltage lockout with
hysteresis (UVLO)
◆ VDD OVP
◆ VDD clamp
◆ Available in SOP8 packages, RoHS
compliant
Applications:
◆ CC/CV Battery Charger
◇ Cell/Cordless
Phone Charger
◇ Digital Camera
Charger
◇ PDA Charger
◆ Small Power Adapter
◆ Auxiliary Power for PC, TV etc.
◆ Linear Regulator/RCC Replacement
Device | MOSFET
Rdson(ohm) | Package | Max Pout(W)note | Max
Pout(W)(85~264V) | Frequency | OB2531 | External | SOT23-6 | -- | -- | 95kHz | OB2532 | External | SOT23-6 | -- | -- | 60kHz | OB2535/E | 12 | SOP8 | 10 | 5 | 60kHz | OB2536/E | 12 | DIP8 | 16 | 9 | 60kHz | OB2538/E | 5 | DIP8 | 20 | 15 | 60kHz | OB2539 | 5 | DIP8 | 18 | 13 | 95kHz |
Note: Maximum practical continuous
power in an open frame design with sufficient drain pattern as a heat sink,
at 50°C ambient, 230Vac input.
Typical Application:
|
如需详细技术资料和样片测试，请随时和我联系。
高精度CC / CV
PSR PWM控制器/电源开关
OB2531是一个高性能的离线PWM电源开关为低功率AC
/ DC充电器和适配器的应用程序。 它可以达到±5%精密恒压(CV)和高精度恒流(CC)。它是在初级侧感测和监管。因此,光耦合器等和TL431可以被消除。
特点:
◆±5%恒压调节在通用交流输入
◆初级侧感测和监管没有TL431和光耦合器等
◆可编程的简历和CC监管
◆可调恒流和输出功率设置
◆内置初级绕组电感补偿
◆可编程电缆压降补偿
◆电源软启动
◆内置前沿消隐(1)
◆逐周期电流限制
◆VDD低电压闭锁与滞后(UVLO)
◆VDD OVP
◆VDD夹
◆可在SOP8包,通过无铅认证
应用程序:
◆CC / CV电池充电器
◇细胞/无绳电话充电器
◇数码相机充电器
◇PDA充电器
◆小电源适配器
◆辅助动力为电脑、电视等。
◆线性调节器/碾压混凝土置换
器件MOSFET Rdson(欧姆)包马克斯撅嘴(W)注意马克斯撅嘴(W)(85 ~ 264 v)频率OB2531外部SOT23-6——95
khz OB2532外部SOT23-6——60 khz OB2535 / E 12 SOP8 10 5 60 khz OB2536 / E 12 DIP8
16 9 60 khz OB2538 / E 5 DIP8 60 khz OB2539 20 15 5 DIP8 18 13 95 khz注意:最大实际连续功率在一个开放的框架设计有足够的排水模式作为一个散热器,在50°C的环境,230
vac的输入。 典型应用:
