Automotive 102 X 4 Chip-on-Glass LCD Segment Driver
PCA8530DUG Receive alerts
The PCA8530 is a fully featured Chip-On-Glass (COG) Liquid Crystal Display (LCD) driver, designed for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to 1:4. It generates the drive signals for a static or multiplexed LCD containing up to 4 backplane, 102 segment outputs, and up to 408 segments/elements. The PCA8530 features an internal charge pump with internal capacitors for on-chip generation of the LCD driving voltage. To ensure an optimal and stable contrast over the full temperature range, the PCA8530 offers a programmable temperature compensation of the LCD supply voltage. The PCA8530 can be easily controlled by a microcontroller through either the two-line I²C-bus or a four-line bidirectional SPI-bus.
Product Details
Features
- AEC Q100 grade 2 compliant for automotive applications
- Low power consumption
- Extended operating temperature range from -40 °C to +105 °C
- 102 segments and 4 backplanes allowing to drive:
- up to 51 7-segment numeric characters
- up to 25 14-segment alphanumeric characters
- any graphics of up to 408 segments/elements
- 408-bit RAM for display data storage
- Two sets of backplane outputs providing higher flexibility for optimal COG layout configurations
- Up to 4 chips can be cascaded to drive larger displays with an internally generated or externally supplied VLCD
- Selectable backplane drive configuration: static, 2, or 4 backplane multiplexing
- LCD supply voltage:
- Programmable internal charge pump for on-chip LCD voltage generation up to 5 x VDD2
- External LCD voltage supply possible as well
- Selectable 400 kHz I²C-bus or 3 MHz SPI-bus interface
- Selectable linear temperature compensation of VLCD
- Selectable display bias configuration
- Wide range for digital and analog power supply: from 2.5 V to 5.5 V
- Wide LCD voltage range from 4.0 V for low threshold LCDs up to 12.0 V for high threshold twisted nematic and Vertical Alignment (VA) displays
- Display memory bank switching in static and 1:2 multiplex drive modes
- Programmable frame frequency in the range of 45 Hz to 300 Hz; factory calibrated with a tolerance of ±3 Hz (at 80 Hz)
- Selectable inversion scheme for LCD driving waveforms: frame or n-line inversion
- Diagnostic features for status monitoring
- Integrated temperature sensor with temperature readout
- On chip calibration of internal oscillator frequency and VLCD
- Laser marking at the back-side of the die for traceability of the lot number, wafer number, and die position on the wafer
Target Applications
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Automotive
- Instrument clusters
- Climate control
- Car entertainment
- Car radio
- Industrial
- Consumer
- Medical and health care
- Measuring equipment
- Machine control systems
- Information boards
- White goods
- General-purpose display modules
Design Resources
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
2 engineering services
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Independent Design House (IDH)
Embedded Software Design
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Independent Design House (IDH)
Hardware Design Services
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