BU97981KV
Low Duty LCD Segment Drivers

BU97981KV 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 196 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 31 general-purpose outputs to control LED devices and can control 3ch LED driver that able to support LED PWM illumination.

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

 
Part Number | BU97981KV-E2
Status | Recommended
Package | VQFP64
Unit Quantity | 1000
Minimum Package Quantity | 1000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Consumer

Segment Element

196

Duty

1/4, 1/3, Static

Bias

1/3

Elements of MUX 1:1

49

Elements of MUX 1:3

147

Elements of MUX 1:4

196

Interface [line serial]

3wire

Interface Voltage (Min.)[V]

1.8

Interface Voltage (Max.)[V]

3.6

Power Supply for LCD (Min.) [V]

3.3

Power Supply for LCD (Max.) [V]

5.5

Max GPO [port]

31

LED Driver [port]

3

LCD Driving Waveform

Line/Frame

Operating Temperature (Min.)[°C]

-30

Operating Temperature (Max.)[°C]

75

Package Size [mm]

12x12 (t=1.6)

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Features:

  • 1/4, 1/3duty or Static setting selectable
    1/4duty driving: Max 196 segments
    1/3duty driving: Max 147 segments
    Static driving: Max 49 segments
  • 1/3 bias setting
  • Power supply for Interface: 1.8V to 3.6V
  • Power supply for LCD: 3.3V to 5.5V
  • Integrated LCD voltage driving circuit
  • Integrated oscillation circuit for LCD frame frequency
  • Line or Frame inversion driving selectable
  • Integrated 31ch general purpose outputs (SEG selectable)
  • Integrated 3ch LED driver able to support 4096 step PWM illumination
  • Support individual blink function with dedicated blink RAM integrated
  • Support 3 wire serial interface
  • Support INHb terminal to control Display ON/OFF
  • Integrated voltage detected type power on reset circuit
  • No external components required
  • Low power consumption design
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