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MBI6659 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 LEDs. With
PWM control scheme, MBI6659 eliminates external compensation design and makes the design simple
The output current of MBI6659 can be programmed by an external resistor and dimmed via pulse width modulation
(PWM) or DC voltage through EN pin to achieve higher efficiency linear current modulation.
MBI6659 features completed protection design to handle faulty situation s The startup 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.
MBI6659 Specification
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ItemsSpec.Content
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01TopologyBuck/ Const. Frequency
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02Max. Output Current per Channel2.5A
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03Max. Sustaining Voltage50V
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04Supply Voltage5~45V
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05Switch on Resistance0.25Ω
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06Common Anode
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07Dimming MethodDigital
Analog -
08Protection - LED Open
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09Protection - LED Short
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10Protection - Thermal Shutdown
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11Protection - Start-Up
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12Protection - UVLO
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13Protection - OCP/OCL
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14Protection - Themal Fold-back
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15Protection - OTP Error FLAG
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16Protection - OCP Error FLAG
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17Soft Start-up
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18RoHS Compliant PackageSOP8
DFN10 -
19Major ApplicationsMR11, MR16, flood light, PAR light, wall wash light, stage light, panel light, emergency lighting, street light, tunnel lighting, high power LED lighting, automotive lighting
