BU91R64CH-M
Low Duty LCD Segment Driver For Automotive COG Application
BU91R64CH-M
Low Duty LCD Segment Driver For Automotive COG Application
BU91R64CH-M3BW is a 1/4, 1/3, 1/2 Duty or Static COG type LCD driver that can be used for automotive applications and can drive up to 320 LCD Segments. This driver can be cascaded up-to maximum of 4 drivers for larger LCD panel application. It supports VA LCD displays, which has better optical performance with higher LCD voltage driving and higher frame frequency driving. This driver includes read function for display data and command registers, wherein it is possible to detect malfunction due to noise. It can also support other error detections such as interface checksum detection, glass breaking detection, logic error detection and SEG / COM toggle detection. A defective mounting of COG can easily be controlled by using terminals to measure ITO resistance. It can support operating temperature of up to +105°C and compliant for AEC-Q100, as required for Automotive Application.
Product Detail
Functional Safety:
Specifications:
Grade
Automotive
Segment Element
320
Duty
1/4, 1/3, 1/2, Static
Bias
1/3, 1/2
Elements of MUX 1:1
80
Elements of MUX 1:2
160
Elements of MUX 1:3
240
Elements of MUX 1:4
480
Interface [line serial]
2wire / 3wire
Interface Voltage (Min.)[V]
2.7
Interface Voltage (Max.)[V]
6
Power Supply for LCD (Min.) [V]
2.7
Power Supply for LCD (Max.) [V]
6
LCD Driving Waveform
Line/Frame
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
105
Common Standard
AEC-Q100 (Automotive Grade)
Features:
- AEC-Q100 Compliant
- 1/4, 1/3, 1/2 Duty or Static Drive Selectable
1/4 Duty Drive: Max 320 Segments
1/3 Duty Drive: Max 240 Segments
1/2 Duty Drive: Max 160 Segments
Static Drive: Max 80 Segments - Integrated Buffer AMP for LCD Driving
- Integrated Oscillator Circuit for LCD frame frequency
- Support External Clock Input
- Integrated EVR Function to Adjust LCD Contrast
- Integrated Power On Reset Circuit
- No External Components
- Low Power Consumption Design
- Support INHb terminal to control Display ON/OFF
- Configurable COM Driving Order
- Support Max 4 Drivers Cascade Connection (BU91R64 / R65 / R66CH-M3BW Available)
- Support Register and Display Data Read-back Function
- Support LCD Contact Resistance Measurement
- Support Error Detection and Status Read Function
Glass Breaking Detection
Interface Checksum
Logic Error Detection
SEG / COM Toggle Detection
