MBI1828数据手册Macroblock中文资料规格书

描述 Description

MBI1828 is an instant On/Off LED driver for lighting applications and exploits PrecisionDrive™ technology to enhance its output characteristics. At MBI1828 output stage, 8 regulated current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of VF variations.

MBI1828 provides users 8-channel constant current ports to match LEDs with equal current. Users may adjust the output current from 5mA to 60mA through an external resistor, Rext, which gives users flexibility in controlling the light intensity of LEDs. In addition, users can precisely adjust LED brightness from 0% to 100% via output enable (OE) with Pulse Width Modulation.

Additionally, to ensure the system reliability, MBI1828 is built with thermal pad which enhances the heat dissipation.

特性 Features

·01 No. of Output Channel ：8
·02 Max. Sustaining Voltage ：50V
·03 Constant Output Current Per Channel ：5~60mA
·04 Output Current Accuracy-between channels ：<±3% (max.)
·05 Output Current Accuracy-between ICs ：<±6% (max.)
·06 Supply Voltage ：8~40V
·07 Dimming Method ：Digital
·08 Thermal Protection ：YES
·09 Constant Output Current Invariant to Load Voltage Change ：YES
·10 Adjusted Output Current ：\"Adjustable 5 - 60mA output current per channel through an external resistor \"
·11 Schmitt Trigger Input ：N/A
·12 Staggered Delay of Output ：N/A
·13 RoHS Compliant Package ：TSSOP16, QFN24
·14 Other Specification ：Integrated voltage regulator for 8 - 40V supply voltageVoltage feedback for DC/DC controller
·15 Technology ：All-Ways-On™ /弹性灯条/PricisionDrive™
·16 Applications ：灯条
·17 Major Feature ：Digital Dimming /Thermal Flag