CLOSE
Search for “” keywords, total search results
MBI1841 contains 2 major blocks, 1st block dynamically provides a constant voltage for the 2nd block linear circuit to operate with a better efficiency. The 1st block DCDC can support buck control to enhance efficiency performance.
MBI1841 provides 8-channel constant current sinks with current skew <±5%. Users may adjust the output current from 10 mA to 150 mA via the RSTOP external resistor, giving them flexibility to control LED light intensity for automotive lighting applications. In addition, users can program TAIL current by setting the duty cycle LED brightness from 5% to 80% with one external resistor RTAIL. And the TURN light total sequence time can be programmed with one external resistor RSEQTIME. Besides, MBI1841 can support max. 24 channels current sink with parallel or sequential LED control through the SEQOUT pin.
MBI1841 contains protection for both HV buck converter and LED current sink. Buck converter has Soft-Start, input current limit, Output OVP, and output short with latch off. LED current sink has LED open latch off and over current limit. To provide better thermal protection ability, MBI1841Q contains thermal fold-back and thermal shutdown function. MBI1841Q also features LED Open/Short/Thermal shutdown error report through DIAG pin.
MBI1841 is available in a QFN48 pin package with exposed pad, which may help to enhance the power dissipation. As a result, a large amount of current can be handled safely in one package.
MBI1841 产品规格
-
ItemsSpec.Content
-
01输出通道数8
-
02拓扑结构线性
-
03每通道输出电流值150mA
-
04输出管脚耐压50V
-
05输出电流精确度-通道间<±2.0% (typ.)
-
06输出电流精确度-IC间<±2.0% (typ.)
-
07电源电压6~50V
-
08内建功率开关导通电阻值
-
09调光方式数字
内建模式 -
10保护功能-LED开路/短路
-
11保护功能-过热
-
12RoHS环保封装QFN48
-
13主要应用车标灯/内装灯/尾灯
