Low Duty LCD Segment Drivers for Automotive applications - BU91530KVT-M

BU91530KVT-M is a 1/5, 1/4, 1/3duty or Static general-purpose LCD driver that can be used for automotive applications and can drive up to 445 LCD Segments. This product can support VA LCD displays, which has better optical performance with higher LCD voltage driving and higher frame frequency driving. It can support operating temperature of up to +105℃ and can control up to 9 general-purpose outputs / PWM output ports for LED backlighting and LED button illumination realizing less flicker by various frequency setting function. It can also support a key scan function that detects a maximum of 30 keys inputs to reduce PCB wiring and to minimize microcontroller size and cost. It can support LCD contrast adjustment by its EVR function and TTL compatible input interface is also available, these are well-suited for wide-voltage range of MCUs.

Part Number | BU91530KVT-ME2
Status | Recommended
Package | TQFP100V
Unit Quantity | 500
Minimum Package Quantity | 500
Packing Type | Taping
RoHS | Yes
Functional Safety | FS supportive

Specifications:

Common Standard

AEC-Q100 (Automotive Grade)

Grade

Automotive

Segment Element

445

Duty

1/5, 1/4, 1/3, Static

Bias

1/3, 1/2

Elements of MUX 1:1

90

Elements of MUX 1:3

270

Elements of MUX 1:4

360

Elements of MUX 1:5

445

Interface [line serial]

3wire+KEYOUT

Interface Voltage (Min.)[V]

2.7

Interface Voltage (Max.)[V]

6.0

Power Supply for LCD (Min.)[V]

2.7

Power Supply for LCD (Max.)[V]

6.0

Max GPO [port]

9

Max KEYSCAN [Key]

30

TTL input Support

Yes

LCD Driving Waveform

Line/Frame

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

105

Features:

  • AEC-Q100 Qualified
  • Key input function for up to 30 keys
    (A key scan is performed only when a key is pressed.)
  • Either 1/5, 1/4, 1/3 or 1/1 duty (static)
    can be selected with the serial control data.
    1/5 duty drive: Up to 445 segments can be driven
    1/4 duty drive: Up to 360 segments can be driven
    1/3 duty drive: Up to 270 segments can be driven
    1/1 duty drive: Up to 90 segments can be driven
  • Serial Data Control of frame frequency for common
    and segment output waveforms.
  • Serial data control of switching between the segment
    output port, PWM output port and general-purpose
    output port functions. (Max 9 ports)
  • Built-in OSC circuit
  • Integrated Power-on Reset Circuit
  • No external component
  • Low power consumption design
  • Supports Line and Frame Inversion