Overview
The PCA9620H/Q900/1,51 is a high-drive segment driver designed by NXP USA Inc. for interfacing with Liquid Crystal Displays (LCDs) that have low multiplex rates. This peripheral device is particularly suited for automotive and industrial applications, offering robust and reliable performance.
The PCA9620H is part of NXP's extensive range of LCD drivers, known for their compatibility with various microprocessors and microcontrollers. It communicates via a two-line bidirectional I2C-bus, minimizing communication overhead through features like display RAM with auto-incremented addressing and display memory switching.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | LQFP80 (plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm) |
| Number of Backplanes | Up to 8 backplanes |
| Number of Segments | Up to 60 segments |
| Total Number of Elements | Up to 480 elements |
| Voltage Range | From 2.5 V for low threshold LCDs to 9.0 V for high threshold (automotive) twisted nematic LCDs |
| Communication Interface | Two-line bidirectional I2C-bus |
| Frame Frequency | Programmable in steps of 10 Hz in the range of 60 Hz to 300 Hz |
| Charge Pump | Internal charge pump with internal capacitors for on-chip generation of LCD driving voltages |
| Temperature Range | AEC Q100 grade 2 compliant for automotive applications |
Key Features
- Compatibility with most microprocessors or microcontrollers through a two-line bidirectional I2C-bus
- Internal charge pump with internal capacitors for on-chip generation of LCD driving voltages
- Display memory bank switching in static, duplex, and quadruplex drive modes
- Programmable frame frequency in steps of 10 Hz in the range of 60 Hz to 300 Hz
- Selectable inversion scheme for LCD driving waveforms: frame or line inversion
- AEC Q100 grade 2 compliant for automotive applications, ensuring robust performance in various environmental conditions
Applications
The PCA9620H/Q900/1,51 is designed for use in various applications, particularly in:
- Automotive systems: For driving LCD displays in automotive instruments, infotainment systems, and other automotive applications
- Industrial systems: For use in industrial control panels, displays, and other industrial equipment requiring robust LCD drivers
- Other display applications: Where low multiplex rates and high reliability are required, such as in medical devices, consumer electronics, and more
Q & A
- What is the PCA9620H/Q900/1,51 used for?
The PCA9620H/Q900/1,51 is a high-drive segment driver used to interface with Liquid Crystal Displays (LCDs) in automotive and industrial applications.
- What is the package type of the PCA9620H/Q900/1,51?
The PCA9620H/Q900/1,51 comes in an LQFP80 package (plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm)
- How many backplanes and segments can the PCA9620H support?
The PCA9620H can support up to 8 backplanes and 60 segments, with a total of up to 480 elements
- What is the voltage range of the PCA9620H?
The PCA9620H operates from 2.5 V for low threshold LCDs to 9.0 V for high threshold (automotive) twisted nematic LCDs
- How does the PCA9620H communicate with microprocessors or microcontrollers?
The PCA9620H communicates via a two-line bidirectional I2C-bus
- Is the PCA9620H suitable for automotive applications?
Yes, the PCA9620H is AEC Q100 grade 2 compliant, making it suitable for automotive applications
- Can the frame frequency of the PCA9620H be programmed?
Yes, the frame frequency of the PCA9620H can be programmed in steps of 10 Hz in the range of 60 Hz to 300 Hz
- What kind of inversion scheme does the PCA9620H support for LCD driving waveforms?
The PCA9620H supports selectable inversion schemes for LCD driving waveforms: frame or line inversion
- Does the PCA9620H have an internal charge pump?
Yes, the PCA9620H has an internal charge pump with internal capacitors for on-chip generation of LCD driving voltages
- What are some common applications of the PCA9620H?
The PCA9620H is commonly used in automotive systems, industrial control panels, and other display applications requiring robust LCD drivers
