Low Duty LCD Segment Drivers for Industrial Applications - BU97931FV-LB

This product is for industrial market, and guaranteed with long term supply.BU97931F-LB is a 1/4, 1/3duty or Static general-purpose LCD driver that can be used for industrial market applications 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 number
Unit Quantity
Minimum Package Quantity
Packing Type
Constitution Materials List
BU97931FV-LBE2 Active SSOP-B40 2000 2000 Taping inquiry Yes
Grade Industrial
Segment Element 112
Duty 1/4, 1/3, Static
Bias 1/3, 1/2
Elements of MUX 1:1 28
Elements of MUX 1:3 84
Elements of MUX 1:4 112
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 Waveform Line/Frame
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
    • Long time support product for Industrial applications
    • 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
Technical Data
Application Note

Thermal Resistance