DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 1
Technical content
Maximizing IC Performance Non-isolated High Performance Low Cost Off-line PWM Power Switch Tel: 86-10-62662828 Copyright © 2017Maxic Technology Corporation Page 1
DESCRIPTION
The MT8812 is a low cost, highly integrated PWM power switch for non-isolated buck and buck-boost application. MT8812 combines a 500V power MOSFET with the ON/OFF PWM controller . MT8812 can achieve high precision 5V default output at universal AC input. In MT8812, PWM switching frequency with shuffling is fixed to 31KHz, which optimizes EMI performance with guaranteed output power. MT8812 has built-in green mode control for light and zero loading, which can achieve less than 50mW standby power. MT8812 provides various protection features to enhance the system reliability , including Under Voltage Lockout (UVLO), Cycle-by cycle Current Limiting (OCP), Over Temperature Shutdown (OTP). Over Load Protection (OLP), Short Load Protection (SLP), etc.
FEATURES
Built-in 31KHz Oscillator with Frequency Shuffling Integrated with 500V MOSFET and High Voltage Startup Circuit Support Buck and Buck/Boost Topology Ultra Low System BOM Cost Very Low VDD Operation Current. Less than 50mW Standby Power High Precision 5V Default Output ON/OFF Peak Current Mode Control Build in Protection Over Load Protection (OLP) No-Chip Thermal Shutdown (OTP) Cycle-by-Cycle Current Limiting (OCP) Leading Edge Blanking (LEB) VDD UVLO Available in SOT23-3 / TO-92 Package
APPLICATIONS
Small Home Application Auxiliary power Typical Application Circuit CS VDDDRAIN MT8812 DC Input DC Output Buck Converter CS VDDDRAIN MT8812 DC Input DC Output - Buck/Boost Converter