LCD driver for 368 segments in vehicle dash
“The amount of information that needs to be shown on instrumental cluster displays is increasing as vehicles gain additional features and functions,” according to the company. “On the other hand, larger displays with higher definitions increase costs. For this reason, there has been an increase, especially in emerging countries, in the number of combination-type instrumental cluster displays that use TFT LCDs for things that require Display flexibility and that use segment LCDs for fixed items such as indicators, icons speedometers and tachometers.”
Called S1D15106, and only available in bare die form, the segment LCD driver connects directly to a microcontroller without the need for external memory.
Pulse-width modulation (PWM) allows 16 grey levels to be established.
For safety, segment open and short detection are included and “if a line from driver output to display is open and a display abnormality is detected, the display can be restored by switching the driver output terminal via control from the microcontroller”, said the company. “This driver is compliant with AEC-Q100.”
Operation is up to 105°C.
|Supply||System power 2.7 – 5.5V|
|LCD supply 2.7 – 8.0V|
|MPU interface||3-wire serial|
|LCD drive||368 segments, 1 common|
|Grayscale||16 greys by pwm|
|LCD driving duty||1/1 (so static)|
|LCD driving bias||1/1 (also static)|
|Error detection||Command register
|Automotive standard||AEC-Q100 compliant|
|Operating range||-40 to +105ºC|
|Other||Built-in oscillator circuit|
|Shipped as||Bare die (gold bumped)|