IHD580FI CT-Concept Technologie AG, IHD580FI Datasheet - Page 6

• Manufacturer Part Number: IHD580FI
• Description: Intelligent Half-bridge Drivers For Igbts And Power Mosfets
• Manufacturer: CT-Concept Technologie AG

IHD 580 FI/FN
Data Sheet & Application Manual
Overview
The
drivers are very compact drive modules
designed for power MOSFETs and IGBTs
in switching operation at high isolation
voltages.
With
transmission is via fiber-optic link (FOL)
with a length of 20 mm integrated into the
driver modules (see Fig. 1). One fast
fiber-optic link is used in each channel for
transmitting the drive information. The
status acknowledgement is performed by
means of slower fiber-optic link.
A
strength is used for the DC/DC converter.
Protection function
The
assignment are identical to those of the
standard types. The description given in
the data sheet IHD215/280/680 applies,
with the following exception:
As the drive information is generated
statically, the IHD 580 Fx types turn the
power
automatically after a fault (short circuit or
desaturation of the IGBT) after the
blocking time has elapsed if the drive
information
description,
IHD 215/280/680).
standard IHDs turn the components on
again only at the next positive turn-on
Page 6
Functional Description
transformer
IHD580Fx
protection
the
semiconductors
IHD 580 Fx
is
see
with
still
intelligent
function
In
present
high
I n t e r n e t :
data
types,
contrast,
on
half-bridge
and
insulating
(for
signal
again
sheet
pin
the
a
w w w . C T - C O N C E P T . c o m
edge. When a fault occurs, the drive
signals should be turned off by the control
logic for about one second (to ensure the
thermal protection of the IGBTs).
Pin 3 and 4 {Pin 17 and 18}
Inputs IN1+ and IN1- {IN2+
and IN2-}
The inputs should be driven with a current
of between 10 and 11 mA. A 1k2
dropping resistor should be used for
driving at 15 V. We recommend that an
RC section with 470 W and 220 pF be
connected in parallel with the dropping
resistor (see Fig. 2). The inputs must never
be connected directly to a low-resistance
driver.
For technical reasons, an inverting drive
circuit such as shown in Fig. 2 of the data
sheet IHD215/280/680 is not possible
with the IHD 580 Fx types. The INx+
inputs must have a positive voltage with
respect to INx- to allow the IGBT to be
driven. To ensure protection against
negative input voltages at the INx+ inputs,
anti-parallel
between INx+ and INx- (see Fig. 2). The
IGBT is turned off by a negative input
signal.
The lead configuration is less critical than
for the IHD215/280/680. Likewise, the
static information transfer means that no
special precautions need be taken in the
event of short pulses.
diodes
are
connected