Low Duty LCD Segment Driver for Automotive application - BU91799KV-M

BU91799KV-M is a 1/4 duty general-purpose LCD driver that can be used for automotive applications and can drive up to 200 LCD Segments. This product can support VA LCD displays, which has better optical performance with higher LCD voltage driving and higher frame frequency driving. It can support operating temperature of up to +105℃ and is qualified for AEC-Q100 Grade2, as required for automotive applications. It has integrated display RAM for reducing CPU load. Also, it is designed with low power consumption and no external component needed. It can support LCD contrast adjustment by its EVR function.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BU91799KV-ME2ActiveVQFP6410001000TapingYes

BU91799KV-M Data Sheet

Specifications
GradeAutomotive
Segment Element200
Duty1/4
Bias1/3, 1/2
Elements of MUX 1:4200
Interface [line serial]2wire
Interface Voltage (Min.)[V]2.5
Interface Voltage (Max.)[V]6.0
LCD Driving WaveformLine/Frame
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]105
Technical Documents
Features
  • 1/4duty driving: Max 200 segments
  • Integrated display data RAM: 50 x 4bit
  • 1/3 or 1/2 bias setting selectable
  • Support wide range of operation voltage from 2.5V to 6.0V, which can support TN LCD and VA LCD display.
  • Power supply for Interface: 2.5V to 6.0V
  • Power supply for LCD: 2.5V to 6.0V
  • Integrated LCD voltage driving circuit
  • Integrated oscillation circuit for LCD frame frequency
  • Line or Frame inversion driving selectable
  • Support 2 wire serial interface
  • Integrated EVR function to adjust LCD contrast
  • Integrated power on reset circuit
  • No external components required
  • Low power consumption design
  • Support up to +105℃ operation, qualified AEC-Q100 Grade2
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Application Note BA12004BF
Part Explanation BA12004BF