SBC-C57
SBC-C57 User Manual - Rev. First Edition: 1.0 - Author: S.O. - Reviewed by R.Z. - Copyright © 2021 SECO S.p.A.
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3.3.7
Optional LED Driver Connector
SBC-C57 board also allow the connection of LVDS Displays requiring a dedicated LED Driver.
The functionality is implemented using an optional 4-Channel WLED controller type MPS MP3385GR-Z driven
by I2C interface #3 of iMX8X processor.
Through this connector, it is possible to connect up to 4 LED strings requiring a max of 68mA per string (60V max voltage).
The connector is a 4-pin 1.25mm pitch connector, type HR P/N A1253WR-SF-06P, with the pinout indicated on the table to
the left.
Mating connector: HR P/N A1253H-06P with female crimp contacts type HR P/N A1253-TPE or A1253-GPE
V_LED+: Strings
’
common LED Anode output (60V max voltage, generated from the driver boost circuit).
V_LEDx-: LED String x Cathode Input
3.3.8
I2C Touch Screen Connector
It is possible to connect an external Touch Screen also using the dedicated connector CN16, whose pinout
is described on the table to the left, instead of using the same signals available on LVDS connector CN18.
This connector is a 1.25mm pitch connector type Molex p/n 53398-0671 or equivalent.
Mating connector: MOLEX 51021-0500 receptacle with MOLEX 50079-8000 female crimp terminals.
The signals available on this connector are exactly the same available on LVDS connector CN18, for their description
please see par. 3.3.4.
Backlight connector CN46
Pin Signal
1
V_LED+
2
V_LED+
3
V_LED1-
4
V_LED2-
5
V_LED3-
6
V_LED4-
I2C Touch Connector CN16
Pin Signal
1
+3V3_RUN
2
TOUCH_INT
3
TOUCH_SDA
4
TOUCH_ SCL
5
TOUCH_ RST
6
GND
