2sd106ai-17 CT-Concept Technologie AG, 2sd106ai-17 Datasheet - Page 9

• Manufacturer Part Number: 2sd106ai-17
• Description: 2sd106ai-17 Dual Scale Driver Core For Igbts And Power Mosfets
• Manufacturer: CT-Concept Technologie AG

Collector sense and dimensioning of Rth
SCALE drivers do not use a static reference voltage to compare the voltage at the
collector. Instead, the reference is used as shown in Fig. 5.
Table 1 Reference resistor, reaction time and turn-off threshold
Notes on Table 1
The values for “Vth1” and “Vth2” are listed in Table 1 as a function of the reference
resistance Rth.
The value in the “Vth1” column corresponds to the voltage threshold after the response
time has elapsed.
The value in the “Vth2” column corresponds to the voltage which is set up statically
across the resistor Rth. This static value is typically reached after between 10 and 15µs.
IGBT-Driver.com
OVERCURRENT
MEASURING
Fig. 4 Collector-sense circuit principle
Value Rth
22k
27k
33k
39k
47k
1.4mA
Reaction time Vth1
4.9 s
5.7 s
6.8 s
7.6 s
9 s
V+
IGD 001
SCALE Driver Module
V+
150uA
4
5
4.8V
5.6V
6.5V
7.3V
8.4V
Ca
Rm
Rthx
Cx
Gx
Ex
Vth2
Dm (2 x 1N4007)
3.2V
3.9V
4.7V
5.6V
6.8V
Rthx
RGx
SCALE Driver
2SD106AI-17 Data Sheet
The
dual
collector-sense circuit
to protect the power
semiconductors. It is
shown in Fig. 4
Its
mode
tained
brochure
“Description
Application
for Scale Drivers”.
To correspond more
effectively
turn-on characteristic
of the IGBTs, the
V
2.35V (1 Diode)
3.05V (1 Diode)
3.25V (2 Diodes)
4.15V (2 Diodes)
5.35V (2 Diodes)
CE
(off)
basic
driver
can
2SD106AI-17
from
operating
to
Page 9
entitled:
be
Manual
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