Low Duty LCD Segment Drivers - BU97981MUV

BU97981MUV is a 1/4, 1/3duty or Static general-purpose LCD driver that can be used for consumer / battery operated products and can drive up to 168 LCD Segments. 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 up to 27 general-purpose outputs to control LED devices and can control 3ch LED driver that able to support LED PWM illumination.Its small QFN package is well-suited for small footprint applications.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BU97981MUV-E2ActiveVQFN56AV808010001000TapingYes

BU97981MUV Data Sheet

Specifications
GradeConsumer
Segment Element168
Duty1/4, 1/3, Static
Bias1/3, 1/2
Elements of MUX 1:142
Elements of MUX 1:3126
Elements of MUX 1:4168
Interface [line serial]3wire
Interface Voltage (Min.)[V]1.8
Interface Voltage (Max.)[V]3.6
Max GPO [port]27
LED Driver [port]3
LCD Driving WaveformLine/Frame
Operating Temperature (Min.)[°C]-30
Operating Temperature (Max.)[°C]75
Applications
  • Vacuum Cleaner
  • Rice Cooker
  • Bakery Machine
  • Toaster and Griller
Technical Documents
Features
  • 1/4, 1/3duty or Static setting selectable
    1/4duty driving: Max 168 segments
    1/3duty driving: Max 126 segments
    Static driving: Max 42 segments
  • 1/3 or 1/2 bias setting selectable
  • Power supply for Interface: 1.8V to 3.6V
  • Power supply for LCD: 2.7V to 5.5V
  • Integrated LCD voltage driving circuit
  • Integrated oscillation circuit for LCD frame frequency
  • Line or Frame inversion driving selectable
  • Integrated 27ch general purpose outputs
    (SEG selectable)
  • Integrated 3ch LED driver able to support 4096 step PWM illumination
  • Support individual blink function with dedicated blink RAM integrated
  • Support 3 wire serial interface
  • Support INHb terminal to control Display ON/OFF
  • Integrated voltage detected type power on reset circuit
  • No external components required
  • Low power consumption design
  • Small QFN package
Related Product
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BU91796MUF-MLow Duty LCD Segment Drivers for Automotive ApplicationsDatasheet
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BU91600FV-MLow Duty LCD Segment Drivers for Automotive ApplicationsDatasheet
BU97981KV BU97981KV
BU9795BGUW BU9795BGUW
BU91R63CH-M3BW BU91R63CH-M3BW
BU91797MUF-M BU91797MUF-M
BU91796MUF-M BU91796MUF-M
BU91799KV-M BU91799KV-M
BU91600FUV-M BU91600FUV-M
Application Note BA12004BF
Package Information BD95500MUV
Part Explanation BA12004BF