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MBI6657Q 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 LED with only 5 external components. With hysteretic PFM control scheme, MBI6657Q eliminates external compensation design and makes the design simple.
The output current of MBI6657Q can be programmed by an external resistor and dimmed via pulse width modulation (PWM) or DC voltage through DIM pin to achieve higher efficiency linear current modulation.
MBI6657Q features completed protection design to handle faulty situations. The start-up function limits the inrush current while the power is switched on. Thermal shutdown, Thermal Foldback and Schottky diode short (SDS) 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. Besides SOT-236 small package, MBI6657Q provides thermal-enhanced SOT-89 packages as well to handle power dissipation more efficiently.
MBI6657Q 产品规格
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ItemsSpec.Content
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01拓扑结构降压
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02每通道最大电流1.2A
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03输入最大耐压45V
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04电源电压6~40V
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05内建功率开关导通电阻值0.3Ω
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06AEC-Q100
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07调光方式数字/仿真
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08保护功能-LED开路/短路
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09保护功能-热折返
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10保护功能-过热
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11保护功能-欠压锁定
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12保护功能-过电流
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13软启动
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14RoHS环保封装SOP8
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15主要应用昼行灯/雾灯/内装灯/尾灯
