BU91R63CH-M
BU91R63CH-M is Low Duty LCD Segment Driver manufactured by ROHM.
Description
BU91R63CH-M 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 176 LCD segments. It can support operating temperature of up to +105 °C and pliant for AEC-Q100, as required for Automotive Application. It has integrated display RAM for reducing CPU load. Also, it is designed with low power consumption and no external ponent needed. It includes read function for display RAM and mand register, which make it possible to detect malfunction due to noise. Also a defective mounting of COG can easily be controlled by using pins to measure ITO resistance.
Features
- AEC-Q100 pliant (Note 1)
- 1/4, 1/3, 1/2 Duty or Static Setting Selectable 1/4 Duty Drive: Max 176 Segments 1/3 Duty Drive: Max 132 Segments 1/2 Duty Drive: Max 88 Segments
Static Drive: Max 44 Segments
- Integrated Buffer AMP for LCD Driving
- Support Read Register and Display RAM Function
- Support ITO Resistance Measurement
- Integrated Oscillator Circuit
- Integrated EVR Function to Adjust LCD Contrast
- Integrated Power On Reset Circuit
- No External ponents
- Low Power Consumption Design
(Note 1) Quality Information: There is data when LSI was put on a temporary package. Please use it as reference data.
Typical Application Circuit
[LCD module]
Key Specifications
- Supply Voltage Range:
+2.7 V to +6.0 V
- LCD Drive Power Supply Range:
+2.7 V to +6.0 V
- Operating Temperature Range:
-40 °C to +105 °C
- Max Segments:
176 Segments
- Display Duty:
1/4, 1/3, 1/2, Static Selectable
- Bias:
1/2, 1/3 Selectable
- Interface:
2-wire Serial Interface
Special Characteristics
- ESD(HBM):
- Latch-up Current:
±2,000 V ±100 m A
Applications
- Instrument Clusters
- Climate Controls
- Car Audios /...
