Multifunction LCD Segment Driver - BU97931FV

ROHM's multi-function segment driver is optimal for LCD segment driver from 100 to 200 segments approximately. Integrating RAM for display in IC contributes to reducing CPU load, power consumption and less peripheral equipment, realizing power saving design. It features compatibility to the LED deriver, RAM luminance function and GPO as a added function as well.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
número de peça
Estado de Condição
Quantidade Unidade
Quantidade mínima Package
tipo de embalagem
BU97931FV-E2 Active SSOP-B40 2000 2000 Taping sim
Grade Consumer
Segment Element 112
Duty 1/4, 1/3, Static
Bias 1/3
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
Power Supply for LCD (Min.)[V] 2.7
Power Supply for LCD (Max.)[V] 5.5
Max GPO [port] 5
LED Driver [port] 1
LCD Driving Waveform Line/Frame
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
    • 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 bias setting
    • 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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Dados técnicos
Application Note

Thermal Resistance