CIPOS™ IGCM10F60GA
Data Sheet 7/14 Aug. 2010
It is recommended for proper work of CIPOS™
not to provide input pulse-width lower than 1us.
The integrated gate drive provides additionally a
shoot through prevention capability which avoids
the simultaneous on-state of two gate drivers of
the same leg (i.e. HO1 and LO1, HO2 and LO2,
HO3 and LO3). When two inputs of a same leg
are activated, only former activated one is
activated so that the leg is kept steadily in a safe
state.
A minimum deadtime insertion of typ 380ns is also
provided by driver IC, in order to reduce cross-
conduction of the external power switches.
VFO (Fault-output and NTC, Pin 14)
The VFO pin indicates a module failure in case of
under voltage at pin VDD or in case of triggered
over current detection at ITRIP. A pull-up resistor
is externally required to bias the NTC.
Figure 5: Internal circuit at pin VFO
The same pin provides direct access to the NTC,
which is referenced to VSS. An external pull-up
resistor connected to +5V ensures, that the
resulting voltage can be directly connected to the
microcontroller
ITRIP (Over current detection function, Pin 15)
CIPOS™ provides an over current detection
function by connecting the ITRIP input with the
motor current feedback. The ITRIP comparator
threshold (typ 0.47V) is referenced to VSS ground.
A input noise filter (typ: tITRIPMIN = 530ns) prevents
the driver to detect false over-current events.
Over current detection generates a shut down of
all outputs of the gate driver after the shutdown
propagation delay of typically 1000ns.
The fault-clear time is set to typical 65us.
VDD, VSS (Low side control supply and
reference, Pin 13, 16)
VDD is the low side supply and it provides power
both to input logic and to low side output power
stage. Input logic is referenced to VSS ground.
The under-voltage circuit enables the device to
operate at power on when a supply voltage of at
least a typical voltage of VDDUV+ = 12.1V is present.
The IC shuts down all the gate drivers power
outputs, when the VDD supply voltage is below
VDDUV- = 10.4V. This prevents the external power
switches from critically low gate voltage levels
during on-state and therefore from excessive
power dissipation.
VB(U,V,W) and VS(U,V,W) (High side supplies,
Pin 1, 2, 3, 4, 5, 6)
VB to VS is the high side supply voltage. The high
side circuit can float with respect to VSS following
the external high side power device emitter
voltage.
Due to the low power consumption, the floating
driver stage is supplied by integrated bootstrap
circuit.
The under-voltage detection operates with a rising
supply threshold of typical VBSUV+ = 12.1V and a
falling threshold of VDDUV- = 10.4V.
VS(U,V,W) provide a high robustness against
negative voltage in respect of VSS of -50V
transiently. This ensures very stable designs even
under rough conditions.
NU, NV, NW (Low side emitter, Pin 17, 18, 19)
The low side emitters are available for current
measurements of each phase leg. It is
recommended to keep the connection to pin VSS
as short as possible in order to avoid unnecessary
inductive voltage drops.
P (Positive bus input voltage, Pin 23)
The high side IGBT are connected to the bus
voltage. It is recommended that the bus voltage
does not exceed 400 V.