NXP PCA8538汽车102x9段玻璃覆晶(COG)LCD驱动解决方案

NXP公司的PCA8538是汽车级102x9段玻璃覆晶(COG)LCD驱动器,和AEC Q100 grade 2汽车应用标准兼容,低功耗,多达114个7段数字和57个14段字符以及多达918个元素的任何图形.工作电压2.5V-5.5V,主要用在汽车仪表盘, 汽车娱乐系统,汽车无线电,工业控制和消费电子,医疗保健,测量设备,白色家电,机器控制系统,和通用显示模块.本文介绍了PCA8538主要特性和优势,框图,I2C和SPI接口的连接图,以及评估板OM13501A 主要特性,电路图和PCB元件分布图.

The PCA8538 is a fully featured Chip-On-Glass (COG)1 Liquid Crystal Display (LCD) driver, designed for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to 1:9. It generates the drive signals for a static or multiplexed LCD containing up to 9 backplanes, 102 segments, and up to 918 elements. The PCA8538 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 PCA8538 offers a programmable temperature compensation of the LCD supply voltage. The PCA8538 can be easily controlled by a microcontroller through either the two-line I2C-bus or a four-line bidirectional SPI-bus.

PCA8538主要特性和优势:

 AEC Q100 grade 2 compliant for automotive applications
 Low power consumption
 Extended operating temperature range from 40 C to +105 C..

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