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Автомобильный дисплейный модуль

Описание:
This design provides, with only one switcher and a coupled inductor, four output voltages for biasing a liquid crystal display. The topology is a Sepic with stacked windings, which offers good performance and low EMI.

Возможности:

Low cost Good performance

Возможность заказа
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Документация:
  • Схемотехника
  • BOM
  • Тестирование
Описание:
This reference design details a display power circuit which generates a bipolar voltage rail for source drivers and additional supplies for gate drivers. Charge pumps are used to generate the voltage supply for gate drivers, which makes this design easy to implement. By using only one dc-dc converter to generate four voltage rails and therefore minimizing the amount of inductances, this circuit allows small design size.

Возможности:

Complete power supply solution for TFT LCD display bias 4 output voltage rails Low quiescent current less than 0.5 mA Load regulation less than 2% on all rails Automotive qualified components

Документация:
  • Схемотехника
  • BOM
  • Топология платы
Описание:
This reference design implements a video over LVDS solution for automotive infotainment applications.It highlights the support of multi-touch with haptic feedback, LCD backlight control, and ambient light sensing, without the introduction of dedicated support lines back to the host processor. This design is implemented using two boards. The main electronics board, SAT0059 is where the deserializer, microProcessor, backlight controller, haptics drivers and power supply are located. The LCD interface board, SAT0096, is a physical and electrical interface to a specific LCD panel. It connects to the SAT0059 through a Samtec board to board connector and provides connection points for the LCD panel, touchscreen, backlight connections and haptic drivers. The SAT0096 is designed for a Microtips UMSH-8596MD-20T display. If a different display is to be used, a new LCD Interface board would likely need to be designed.

Возможности:

Wide input voltage range: off battery 4.5V to 40V power supply All video and support communications through LVDS o Supporting 24 bit RGB Video o 400Kbps back channel I2C connection for multi-touch input Haptic feedback State of art I2C/SPI interface LED backlighting controller with dimming ratio of >10,000:1, switching frequency ~2.2MHz, hybrid dimming and saftey and fault tolerances/functions Backlight adjustable to inputs o Ambient light sensor o Thermistor inputs on the LCD and the back light to enable thermal protection

Документация:
  • Схемотехника
  • BOM
  • Топология платы
  • Тестирование
Описание:
This reference design conserves power and extends life of LCD and backlight by adjusting the backlight brightness relative to the ambient light level. The capTIvate touch slider allows the brightness to be finetuned per the user's brightness preference. The sensitive thermal requirements of the LCD display is monitored by the remote temperature sensors enabling thermal shutdown to protect the system.
Возможности:

Operating range from 4V to 40V 6 strings of 8 LEDs, 150mA max per string Adjusts backlight brightness based on ambient light level Capacitive touch slider for tuning or setting brightness Temperature monitoring and shutdown during over-temperature condition Lowers system power and extends life of backlight and LCD

Документация:
  • Даташит
  • Схемотехника
  • BOM

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