MBI6911 Datasheet | Macroblock

Features - Constant current LED driver - Voltage step down converter - Built-in active power factor correction - Quasi-resonant switching - Thermal Fold-back Function - Full protection: Thermal shutdown VDD over voltage protection Under voltage lock-out (UVLO) LED short- circuit - Available in MSOP8 package - Package MSL Level : 3 Mini Small Outline Package GMS: MSOP-8L-118mil Product Description MBI6911 is a 85~135V input AC-DC converter designed to deliver constant current with thermal fold-back Feature . The built-in active power factor correction circuit maintains high power factor over a wide input voltage range. MBI6911 is optimized for interior power applications, and the efficiency is enhanced with quasi-resonant switching technique. MBI6911 is also featured with under voltage lock-out (UVLO), over temperature protection (OTP), over-voltage protection and LED short-circuit protection to protect the converter from being damaged accidentally. A thermal resistor can be used with an external voltage divider circuit to adjust the output current level automatically. If this feature is used to monitor an output current related heat source, a temperature balance condition should be expected. Applications - T8 light tube LED alternative solutions - E26/E27 light bulb LED alternative solutions - GU10 light LED alternative solutions - Other Interior LED power module applications ©Macroblock, Inc., 2014 6F-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30072, R.O.C. TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock..tw - 1 - November 2014, V.1.00 High Power Factor AC/DC LED Driver Typical Application Circuit Fig.1 Typical application circuit of MBI6911 Functional Diagram GAIN BIAS VTH CS THFB OVP OPEN UVLO Valley Detect Circuit Error Amplifier VRef Cycle-by Cycle Current Limit Real Time Short Circuit Protection Quasi Resonant Control PWM...