Low Duty LCD Segment Drivers - BU97931FV

BU97931FV 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 112 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 5 general-purpose outputs to control LED devices and can control 1ch LED driver that able to support LED PWM illumination.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BU97931FV-E2ActiveSSOP-B4020002000TapingYes

BU97931FV Data Sheet

Specifications
GradeConsumer
Segment Element112
Duty1/4, 1/3, Static
Bias1/3, 1/2
Elements of MUX 1:128
Elements of MUX 1:384
Elements of MUX 1:4112
Interface [line serial]3wire
Interface Voltage (Min.)[V]1.8
Interface Voltage (Max.)[V]3.6
Max GPO [port]5
LED Driver [port]1
LCD Driving WaveformLine/Frame
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]85
Applications
  • MFP(Multi Function Printer)
  • Car Audio
  • Vacuum Cleaner
  • Rice Cooker
  • LED Lighting
  • Bakery Machine
  • Toaster and Griller
  • PPC (Plain Paper Copier)
Technical Documents
Features
  • 1/4, 1/3duty or Static setting selectable
    1/4duty driving: Max 112 segments
    1/3duty driving: Max 84 segments
    Static driving: Max 28 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 5ch general purpose outputs
    (SEG selectable)
  • Integrated 1ch LED driver able to support 256 step PWM illumination
  • Support individual blink function with dedicated blink RAM integrated
  • Support 3 wire serial interface
  • Integrated voltage detected type power on reset circuit
  • No external components required
  • Low power consumption design
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BU97931FV BU97931FV
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 BD9536FV
Reliability Information BU97931FV
Package Information BU4584BFV
Part Explanation BA12004BF