IHD215 CT-Concept Technologie AG, IHD215 Datasheet - Page 9

• Manufacturer Part Number: IHD215
• Description: Intelligent Half-bridge Drivers For Igbts And Power Mosfets
• Manufacturer: CT-Concept Technologie AG

Layout of the terminals
The terminal pins of the drive modules of
the IHD series are arranged so that the
layout can be kept very simple and the
logic signal flow (input signal
circuit
A distance of 45 mm is observed between
the drive signal and the power potential!
Note on pin description
As the drivers of the IHD series have two
channels, all pins are present in duplicate
with the exception of the power supply. In
the description, the pin numbers and
designations are given for channel 1.
Those for channel 2 are shown in braces
For the second channel, the same applies
as for the first channel that is explicitly
described.
Pin 3 and 4 pin 17 and
18 : Inputs IN1+ and IN1-
The drive signals are applied to the differ-
ence inputs IN1+ and IN1-. The input
I n t e r n e t :
Fig. 1 Non-inverting input configuration
IN2+ and IN2-
.
power transistors) is maintained.
w w w . I G B T - D r i v e r . c o m
drive
Data Sheet & Application Manual
Fig. 2 Inverting input configuration
IN1- is usually connected to the ground of
the control electronics. A positive edge at
input IN1+ causes the corresponding
power transistor to be turned on, a nega-
tive edge switches it off again (Fig. 1). If
the drive signal has to be inverted, then
input IN1+ is applied to the electronics
ground and the control signal to input
IN1- (Fig. 2).
In the drivers of the IHD series, the electri-
cal isolation of the control signals is real-
ized by the use of pulse transformers.
Care should be taken when applying the
drive signal that the control electronics
can
charge/discharge currents required by
the IHD and that the edge slope corre-
sponds to the data-sheet specifications. In
addition, the input driver must be pro-
tected against latch-up, as reactive effects
from the switching operations are trans-
ferred to the input drivers via the coupling
capacitance of the internal transformer.
The MC33151 from Motorola is a tried
and tested input driver for both channels.
The drive modules of the IHD series should
be positioned as closely as possible to the
relevant power transistors. The leads from
the control electronics to the inputs IN1+
and IN1- can be about 25 cm in length.
IHD 215/280/680
supply
the
voltages
Page 9
and