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MBI6353 is an advanced 48-channel high power constant current full-array local dimming (FALD) backlighting LED driver for large-mid LCD panel applications. The innovative architecture is designed to support up to 1:4 time-multiplexing and control up to 192 LED dimming zones application using internal Pulse Width Modulation Dimming(P-DIM) and Analog Dimming(A-DIM) control with 12-bit color depth and extra 2-bits high luminance mode by zone to improve contrast ratio for HDR applications.
Both compulsory and real-time LED error open/short detection and protection are included during both start-up and normal operation. Besides, MBI6353 also provides DC/DC feedback control, ghost elimination function and over temperature protection features.
MBI6353 Specification
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ItemsSpec.Content
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01No. of Output Channel48
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02Output Current per Channel4~100mA
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03Sustaining Output Voltage24V
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04Excellent Output Current Accuracy-between channels<±3.0％ (max.)
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05Excellent Output Current Accuracy-between ICs<±3.0％ (max.)
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06Embedded MOSFET
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07Transmission InterfaceSPI with Daisy Chain
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08Transmission MethodBurst Mode
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09Scan DesignUp to 4-scan
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10Error Detection - LED Open
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11Error Detection - LED Short
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12Current Gain8-bit
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13Dimming Method12-bit PWM
10-bit PAM -
14Dynamic-Sync
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15Feedback Control
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16Protection-OTP
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17RoHS Compliant PackageQFN-68 8X8
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18Major ApplicationsMonitor, TV
