Low Duty LCD Segment Driver for Automotive application - BU91797MUF-M

BU91797MUF-M is a 1/4 duty general-purpose LCD driver that can be used for automotive applications and can drive up to 144 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. Wettable flank QFN package is suitable for small footprint applications and provides significant advantages in inspectability and solder joint reliability.

Part Number	Status	Package	Unit Quantity	Minimum Package Quantity	Packing Type	RoHS
BU91797MUF-ME2	Active	VQFN48FV7070	1500	1500	Taping	Yes

BU91797MUF-M Data Sheet

Specifications

Grade	Automotive
Segment Element	144
Duty	1/4
Bias	1/3, 1/2
Elements of MUX 1:4	144
Interface [line serial]	2wire
Interface Voltage (Min.)[V]	2.5
Interface Voltage (Max.)[V]	6.0
LCD Driving Waveform	Line/Frame
Operating Temperature (Min.)[°C]	-40
Operating Temperature (Max.)[°C]	105

Technical Documents

Features

1/4duty driving: Max 144 segments
Integrated display data RAM: 36 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.
Integrated LCD voltage driving circuit
Integrated oscillation circuit for LCD frame frequency
Line or Frame inversion driving selectable
Support 2 wire serial interface
Integrated power on reset circuit
No external components required
Low power consumption design
Small wettable flanks QFN package improved in inspectability and reliability
Support up to +105℃ operation, qualified AEC-Q100 Grade2

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Application Note BA12004BF

Part Explanation BA12004BF