100 x 18 Chip-On-Glass automotive LCD dot matrix driver

Overview

The PCA8539 is a fully featured Liquid Crystal Display (LCD) driver, specifically designed for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to 1:18. It generates the drive signals for multiplexed LCD containing up to 18 backplanes, 100 segments, and up to 1800 elements. The PCA8539 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 PCA8539 offers a programmable temperature compensation of the LCD supply voltage. The PCA8539 can be easily connected to a microcontroller by either the two-line I²C-bus or a four-line bidirectional SPI-bus.

Features

AEC Q100 grade 2 compliant for automotive applications
Single-chip LCD controller and driver
Extended operating temperature range from -40 °C to +105 °C
100 segments and 18 backplanes allowing to drive any graphic with up to 1800 elements
On-chip:
- Configurable 4, 3, or 2 times voltage multiplier generating LCD supply voltage, independent of V_DD, programmable by instruction (external supply also possible)
- Integrated temperature sensor with temperature readout
- Temperature compensation of on-chip generated VLCDOUT. Selectable linear temperature compensation of V_LCD
- Generation of intermediate LCD bias voltages
- Oscillator requires no external components (external clock also possible)
Readout of RAM and registers possible
Diagnostic features:
- Checksum on I²C and SPI bus
Frame frequency: programmable from 45 Hz to 360 Hz
2960-bit RAM for storage (1800 bit for display data)
Two-line I²C-bus interface or four-line SPI bus
Multiplex drive mode 1:18 and 1:12
Inversion modes:
- n-line (n = 1 to 7) inversion
- Frame inversion
Large supply voltage range: V_DD1: 2.5 V to 5.5 V (chip can be driven with battery cells)
Analog supply voltage V_DD2: 2.5 V to 5.5 V
LCD supply voltage V_LCD: 4 V to 16 V
Very low current consumption (20 μA to 200 μA):
- Power-down mode: < 2 μA

Target Applications

Automotive:
- Instrument clusters
- Climate control display
- Car entertainment
- Car radio
Industrial:
- Medical and health care
- Measuring equipment
- Machine control systems
- Information boards
- General-purpose display modules
Consumer:
- White goods
- Home entertainment

Features

AEC Q100 grade 2 compliant for automotive applications
Single-chip LCD controller and driver
Extended operating temperature range from -40 °C to +105 °C
100 segments and 18 backplanes allowing to drive any graphic with up to 1800 elements
On-chip:
- Configurable 4, 3, or 2 times voltage multiplier generating LCD supply voltage, independent of V_DD, programmable by instruction (external supply also possible)
- Integrated temperature sensor with temperature readout
- Temperature compensation of on-chip generated VLCDOUT. Selectable linear temperature compensation of V_LCD
- Generation of intermediate LCD bias voltages
- Oscillator requires no external components (external clock also possible)
Readout of RAM and registers possible
Diagnostic features:
- Checksum on I²C and SPI bus
Frame frequency: programmable from 45 Hz to 360 Hz
2960-bit RAM for storage (1800 bit for display data)
Two-line I²C-bus interface or four-line SPI bus
Multiplex drive mode 1:18 and 1:12
Inversion modes:
- n-line (n = 1 to 7) inversion
- Frame inversion
Large supply voltage range: V_DD1: 2.5 V to 5.5 V (chip can be driven with battery cells)
Analog supply voltage V_DD2: 2.5 V to 5.5 V
LCD supply voltage V_LCD: 4 V to 16 V
Very low current consumption (20 μA to 200 μA):
- Power-down mode: < 2 μA

Target Applications

Automotive:
- Instrument clusters
- Climate control display
- Car entertainment
- Car radio
Industrial:
- Medical and health care
- Measuring equipment
- Machine control systems
- Information boards
- General-purpose display modules
Consumer:
- White goods
- Home entertainment

OM13503:PCA8539 demoboard

Evaluation and Development Boards

PCA8539DUG: 100 x 18 Chip-On-Glass automotive LCD dot matrix driver

Overview

Features

Target Applications

Target Applications

Development Boards and Designs

Development Boards and Designs