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Low Duty LCD Segment Drivers for Automotive applications - BU91501KV-M

BU91501KV-M is a 1/4 or 1/3 duty general-purpose LCD driver that can be used for automotive applications and can drive up to 204 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 support up to 4 general-purpose outputs to control LED devices.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.

Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BU91501KV-ME2 Active VQFP64 1000 1000 Taping Yes
 
Specifications:
Grade Automotive
Segment Element 204
Duty 1/4, 1/3
Bias 1/3, 1/2
Elements of MUX 1:3 156
Elements of MUX 1:4 204
Interface [line serial] 3wire+KEYOUT
Interface Voltage (Min.)[V] 2.7
Interface Voltage (Max.)[V] 6.0
Power Supply for LCD (Min.)[V] 4.5
Power Supply for LCD (Max.)[V] 6.0
Max GPO [port] 4
Max KEYSCAN [Key] 30
LCD Driving Waveform Line/Frame
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
Features:
    • 1/4 or 1/3 duty setting selectable
      1/4duty driving: Max 204 segments
      1/3duty driving: Max 156 segments
    • 1/3 or 1/2 bias setting selectable
    • Power supply for Interface: 2.7V to 6.0V
    • Power supply for LCD: 4.5V to 6.0V
    • Integrated LCD voltage driving circuit
    • Integrated oscillation circuit for LCD frame frequency
    • Line or Frame inversion driving selectable
    • Integrated 4ch general purpose outputs
      (SEG selectable)
    • Support 3 wire serial interface + KEYOUT
    • Support Max 30 key input detection (SEG selectable)
    • Integrated power on reset circuit
    • No external components required
    • Low power consumption design
    • Support up to +105°C operation,
      qualified AEC-Q100 Grade2
 
 
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Technical Data
Application Note

Thermal Resistance