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IRMD2214SS Datasheet(PDF) 13 Page - International Rectifier

Part # IRMD2214SS
Description  For 3-phase / 380V motor drives
PDF  22 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IRMD2214SS Datasheet(HTML) 13 Page - International Rectifier

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Datasheet rev 2.1
IRMD2214SS
www.irf.com
page
13/22
Sep 9th, 2004
Fast diode between gate and supply pin
On all low and high side drivers a fast diode is provided to clamp the gate coming over the VCC or VB
supply pins and to recover the current coming from the collector node through the gate-collector
capacitance.
Figure 11: Collector-Gate current protection
The following table shows the names of these components on board.
U
V
W
(high side) DG
D6
D12
D18
(low side) DG
D2
D8
D14
Zener diode to preserve the IGBT gate
To avoid a VGE increasing over the absolute maximum rating a zener diode is connected between gate
and emitter pins on all the IGBTs.
Figure 12: Zener clamp for IGBT gate
Q
L
DC+
V
OUT
DH
V
G
V
E
R
GATE
V
CC
R
ONp
D
Pn
D
G
GND
Q
L
D
L
V
OUT
V
CC
V
SS
GATE DRIVER
high side
driver
low side
driver
V
S
LOAD
DC+
COM
R
boot
R
COM
low
voltage
supply



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