MBI6655 Datasheet | Macroblock

Macroblock Preliminary Datasheet Step-Down, High Efficiency, 1A LED Driver Features - Maximum 1A constant output current - 97% efficiency @ input voltage 12V, 350m A, 3-LED - 6~36V input voltage range - Hysteretic PFM eliminates external pensation design - Settable constant output current - Integrated power switch with 0.3ohm low Rds(on) - Full protections: Start-Up/OCP/ Thermal/ LED Open-/ Short-Circuit - Only 5 external ponents required Small Outline Transistor GSB: SOT-89-5L Small Outline Package Product Description MBI6655 is a step-down constant-current high-brightness LED driver to provide a cost-effective design solution for interior/exterior illumination applications. It is designed to deliver constant current to light up high power GD: SOP8L-150-1.27 LED with minimum 5 external ponents. With hysteretic PFM control scheme, MBI6655 eliminates external pensation design and simplifies the PCB design. The output current of MBI6655 can be programmed by an external resistor and dimmed via pulse width modulation (PWM) through DIM pin. MBI6655 Features plete protection design to handle faulty situations. The start-up function limits the inrush current while the power is switched on. Over temperature protection (OTP), and over current protection (OCP) guard the system to be robust and keep the driver away from being damaged which results from LED open-circuited, short-circuited and other abnormal events. MBI6655 provides thermal-enhanced SOT-89 and SOP-8 packages as well to handle power dissipation efficiently. Applications - Signage and Decorative LED Lighting - High Power LED Lighting - Constant Current Source Macroblock, Inc. 2014 Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC. TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock..tw - 1 - Aug 2014, V1.03 Typical Application Circuit Step-Down, 1A LED Driver VIN SEN...