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PN3867, 7.5W Power Switcher for Smart Chargers

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标    签:PN3867AC-DCSwitcher6级能效智能电源适配器

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文档简介

Dramatically Simplifies CC/CV Converters

•No optocoupler and all secondary CC/CV control

• No all control loop compensation components

Energy Efficient 

• Easily meet global energy efficiency norm with no added components or cost (Energy Star 6.0 and CoC Tie 2 )

• No-load consumption below 50 mW at 230 Vac input

    

Features

• Built in 800V BJT

• Adjustable Output Cable Voltage Drop Compensation 

• Over Voltage Protection

• Over Temperature Protection

• Low Total Cost Solution

• Vally conduction for higher efficiency 

• Output Power of Adapter:

 PN3867 up to 7.5W, SOP-7 Package

 Applications

• Replace for  RCC or Linear Transformer Solution 

• LED Driver

• Adapter for Battery Chargers, toys and  Digital 

  Camera  

文档预览

PPNN33886677 OFF-LINE CC/CV SWITCHER Pri-Energy Micro-Electronics Product Highlight Dramatically Simplifies CC/CV Converters • No opto-coupler and all secondary CC/CV control components • No all control loop compensation components Better Energy Efficiency • Easily meet global energy efficiency norm with no added components or cost (Energy Star 6.0 and CoC Tie 2 ) • No-load consumption below 50 mW at 230 Vac input Key Performance Features Figure 1, 7.5W Typical Application with PN3867 • Valley on to Improve Conversion Efficiency • Built in 800V BJT • ADJ Output Cable Voltage Drop Compensation Output Power Table(Note 1,2) Product 90-300 VAC Input • Frequency Jittering for Low EMI Adapter Open Frame • Over Voltage Protection • Over Temperature Protection with Hysteretic PN3867 7.5W 8W • Hiccup Mode Operation under Short Circuit • Output Power up to 7.5W Adapter • SOIC-8 Package Applications • LED Driver • Appliance • Power Meters • Battery Chargers • Toys • Digital Camera Notes (1,2): 1. Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient, device TJ ≤ 100 °C. General Description 2. Maximum practical continuous power in an open frame design with adequate heat sinking, measured at +50 °C. The PN3867 is high performance AC to DC power supply control device with primary sensing regulation technology. This device includes an internal power BJT and operates in valley on mode to provide high efficiency along with a number of key built-in protection features while minimizing the external component count, simplifying EMI design, and lowering the total bill of material cost. The PN3867 removes the need for secondary feedback circuit while achieving excellent line and load regulation. It also eliminates the need for loop compensation components while maintaining stability in all operating conditions. The built-in power limit function enables optimized transformer design in universal off-line applications and allows for a wide input voltage range. PN Micro-Electronics’s proprietary technology ensures that power supplies built with the PN3867 can achieve highest average efficiency and very tight output voltage and current regulation, with a wide range of output voltage (typical 5V, 12V, 48V and others). The device incorporates an 800 V power Bipolar Junction Transistor (BJT), adjustable cable compensation, audible noise suppression by adjustable peak current, frequency jittering, and hysteretic thermal shutdown circuitry into one power switcher. PPNN33886677 OFF-LINE CC/CV SWITCHER Part Ordering Information Pri-Energy Micro-Electronics Package SOIC-8 Temperature Range -40°C to 105°C Part Number PN3867DG Marking ID 3867DG Packing 4000/Tape & Reel IMPORTANT NOTICE Pri-Energy Micro-Electronics reserves the right to make changes or corrections to its products at any time without notice. Customers should verify the datasheets are current and complete before placing order. www.pri-energy.com

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