1EDI2002AS_15 Datasheet, PDF (17/147 Pages) Infineon Technologies AG – Single Channel Isolated Driver for Inverter Systems AD Step

EiceDRIVER™ SIL
1EDI2002AS
Functional Description
NCS
Chip Select input for the SPI interface. This signal is low active. An internal weak pull-up device to V_CC1 drives this
input to High state in case the pin is floating.
IREF1
Reference input of the primary chip. This pin shall be connected to V_GND1 via an external resistor.
NRST/RDY
Open drain reset input. This signal is low-active. When a valid signal is received on this pin, the device is brought
in its default state. This signal is also used as a “ready notification”. A high level on this pin indicates that the
primary chip is functional.
DOUT
Enhanced DESAT functionality comparator status output. This signal allows real-time monitoring of the IGBT
state.
DIO1
I/O for the digital channel. Depending of the chosen configuration of the device, this pin can be an input or an
output (push-pull). An internal weak pull-down resistor to V_GND1 drives this input to Low state in case the pin is
floating.
2.2.2.2 Secondary Side
VEE2
Negative power supply for the secondary side, referring to V_GND2.
VCC2
Positive power supply for the secondary side, referring to V_GND2.
GND2
Reference ground for the secondary side.
DESAT
Desaturation Protection input pin. The function associated with this pin monitors the V_CE voltage of the IGBT. The
detection threshold is programmable. An internal pull-up resistor to V_CC2 drives this signal to High level in case it
is floating.
OCP
Over Current Protection input pin. The function associated with this pin monitors the voltage across a sensing
resistance located on the auxiliary path of a Current Sense IGBT. An internal weak pull-up resistor to the internal
5V reference drives this input to High state in case the pin is floating.
OCPG
Over Current Protection Ground.
Datasheet
17
Hardware Description
Rev. 3.1, 2015-07-30