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Low Duty LCD Segment Drivers - BU9794AKV

BU9794AKV is a 1/4 duty general-purpose LCD driver that can be used for consumer / battery operated products and can drive up to 200 LCD Segments.It has integrated display RAM for reducing CPU load. Also, it is designed with low power consumption and no external component needed.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BU9794AKV-E2 Active VQFP64 1000 1000 Taping Yes
 
Specifications:
Grade Consumer
Segment Element 200
Duty 1/4
Bias 1/3, 1/2
Elements of MUX 1:4 200
Interface [line serial] 3wire
Interface Voltage (Min.)[V] 2.5
Interface Voltage (Max.)[V] 5.5
Power Supply for LCD (Min.)[V] 2.5
Power Supply for LCD (Max.)[V] 5.5
LCD Driving Waveform Line/Frame
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Features:
    • 1/4duty driving: Max 200 segments
    • Integrated display data RAM: 50 x 4bit
    • 1/3 or 1/2 bias setting selectable
    • Power supply for Interface: 2.5V to 5.5V
    • Power supply for LCD: 2.5V to 5.5V
    • Integrated LCD voltage driving circuit
    • Integrated oscillation circuit for LCD frame frequency
    • Line or Frame inversion driving selectable
    • Support 3 wire serial interface
    • Support INHb terminal to control Display ON/OFF
    • Integrated power on reset circuit
    • No external components required
    • Low power consumption design
 
 
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Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.