ES5392.1 High Current Switch Board (6-CH) - User’s Guide
33
ETAS
Signals
3.3
Control of an External Power Supply via X1 PwrCtrl
The ES5392.1 can control an external power supply via the connector X1 PwrCtrl
(pin assignment on page 41). The inputs and outputs of X1 PwrCtrl have the
following functions:
• Switching an external power supply on and off via the digital outputs
• Receiving status signals from the external power supply via the digital
inputs
• Setting the target value of the voltage of the external power supply via the
analog outputs
• Measuring voltage and current of the external power supply via the ana-
log inputs
• Galvanic isolation of all analog and digital inputs and outputs
3.3.1
Digital Inputs at X1 PwrCtrl
The connector X1 PwrCtrl has three digital inputs DIG_IN_0... DIG_IN_2 that can
be used, e.g. for connecting status signals of the power supply, such as "over-
voltage, "overcurrent" or "overtemperature".
Fig. 3-2 shows the block diagram of a digital input.
Block diagram for digital inputs of X1 PwrCtrl
Fig. 3-2
Block diagram of the digital inputs of X1 PwrCtrl
For power supplies, whose status lines feature an "Open Collector" stage at the
output, every digital input features either a Pull-Up or Pull-Down wiring. The wir-
ing can be configured with jumpers via the connection strips JP800, JP801 and
JP802.
The configuration for the digital inputs via jumper is described in "Configuration
of Digital Inputs/Outputs of X1 PwrCtrl" on page 24.
The pin assignment of X1PwrCtrl is located in Tab. 4-1 on page 41.
Digital Input
(DIG_IN_X)
+5 V
(galv. isolated)
Jumper
Pull-Up/
Pull-Down-
Resistor
Digital Ground
(GND_DIG_IN_X)
Input-Protection
60 V
Galvanic
Isolation
DigIn
GND
FPGA
Digital Ground
(GND_DIG_IN_X)
E
S
5300 Backpla
ne
