BU9794AKV
Low Duty LCD Segment Drivers

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.

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* This is a standard-grade product.
For Automotive usage, please contact Sales.

Product Detail

 
Part Number | BU9794AKV-E2
Status | Recommended
Package | VQFP64
Unit Quantity | 1000
Minimum Package Quantity | 1000
Packing Type | Taping
RoHS | 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

Package Size [mm]

12x12 (t=1.6)

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

Design Resources

 

Technical Articles

Schematic Design & Verification

  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Basics of Thermal Resistance and Heat Dissipation
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Tools

2D/3D/CAD

  • VQFP64 Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)