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WESTCODE
An IXYS Company
Date:- 28 Oct-04
Data Sheet Issue:- 1
Anode Shorted Gate Turn-Off Thyristor
Type G1000NC450
Absolute Maximum Ratings
VDRM
VRSM
VRRM
VRSM
VOLTAGE RATINGS
Repetitive peak off-state voltage, (note 1)
Non-repetitive peak off-state voltage, (note 1)
Repetitive peak reverse voltage
Non-repetitive peak reverse voltage
MAXIMUM
LIMITS
4500
4500
18
18
UNITS
V
V
V
V
ITGQ
Ls
IT(AV)M
IT(RMS)
ITSM
ITSM2
I2t
di/dtcr
PFGM
PRGM
IFGM
VRGM
toff
ton
Tj op
Tstg
RATINGS
Peak turn-off current, (note 2)
Snubber loop inductance, ITM=ITGQ, (note 2)
Mean on-state current, Tsink=55°C (note 3)
Nominal RMS on-state current, 25°C (note 3)
Peak non-repetitive surge current tp=10ms, (Note 4)
Peak non-repetitive surge current tp=2ms, (Note 4)
I2t capacity for fusing tp=10ms
Critical rate of rise of on-state current, (note 5)
Peak forward gate power
Peak reverse gate power
Peak forward gate current
Peak reverse gate voltage (note 6).
Minimum permissible off-time (note 2)
Maximum permissible on-time
Operating temperature range
Storage temperature range
Notes:-
1) VGK=-2Volts.
2) Tj=125°C, VD=2/3VDM, VDM<VDRM, diGQ/dt=25A/µs, ITGQ=1000A and CS=2µF.
3) Double-side cooled, single phase; 50Hz, 180° half-sinewave.
4) Tj(initial)=125°C, single phase, 180° sinewave, re-applied voltage VD=VR10V.
5) For di/dt>800A/µs please consult the factory.
6) May exceed this value during turn-off avalanche period.
MAXIMUM
LIMITS
1000
300
545
1065
8
14
320×103
800
210
8
140
18
80
20
-40 to +125
-40 to +125
UNITS
A
nH
A
A
kA
kA
A2s
A/µs
W
kW
A
V
µs
µs
°C
°C
Data Sheet. Type G1000NC450 Issue 1
Page 1 of 15
October, 2004

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WESTCODE An IXYS Company
Characteristics
Anode Shorted Gate Turn-Off Thyristor type G1000NC450
VTM
IL
IH
dv/dtcr
IDRM
IRRM
IGKM
Parameter
Maximum peak on-state voltage
Latching current
Holding current.
Critical rate of rise of off-state voltage
Peak off state current
Peak reverse current
Peak negative gate leakage current
VGT Gate trigger voltage
IGT Gate trigger current
td Delay time
tgt Turn-on time
tf Fall time
tgq Turn-off time
IGQ Peak turn-off gate current
QGQ Turn-off gate charge
ttail Tail time
tgw Gate off-time (note 3)
RthJK Thermal resistance junction to sink
F Mounting force
Wt Weight
MIN
-
-
-
1000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
100
-
-
-
15
-
TYP MAX TEST CONDITIONS
3.5 4.0 IG=2A, IT=1000A
10 - Tj=25°C
10 - Tj=25°C
- - VD=2/3VDRM, VGR=-2V
- 50 Rated VDRM, VGR=-2V
- 60 VRR=16V
- 60 VGR=-16V
1.2 - Tj=-40°C
1 - Tj=25°C VD=25V, RL=25m
0.8 - Tj=125°C
1.5 4 Tj=-40°C
0.8 2 Tj=25°C
VD=25V, RL=25m
0.3 0.7 Tj=125°C
1.5 - VD=50%VDRM, ITGQ=1000A, diT/dt=300A/µs,
4.5 6 IGM=20A, diG/dt=10A/µs
1-
14 18
280 - VD=2/3VDRM, ITGQ=1000A, diGQ/dt=25A/µs, VGR=-
2 3 16V, CS=2µF
40 60
--
- 0.027 Double side cooled
- 0.07 Cathode side cooled
- 0.045 Anode side cooled
- 25 (see note 2)
480 -
UNITS
V
A
A
V/µs
mA
mA
mA
V
V
V
A
A
A
µs
µs
µs
µs
A
mC
µs
µs
K/W
K/W
K/W
kN
g
Notes:-
1) Unless otherwise indicated Tj=125oC.
2) For other clamping forces, consult factory.
3) The gate off-time, is the period during which the gate circuit is required to remain at low impedance to allow for the passage of
tail current.
Data Sheet. Type G1000NC450 Issue 1
Page 2 of 15
October, 2004

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WESTCODE An IXYS Company
Anode Shorted Gate Turn-Off Thyristor type G1000NC450
Notes on ratings and characteristics.
1. Maximum Ratings.
1.1 Off-state voltage ratings.
Unless otherwise indicated, all off-state voltage ratings are given for gate conditions as diagram 1. For
other gate conditions see the curves of figure 5. It should be noted that VDRM is the repeatable peak
voltage which may be applied to the device and does not relate to a DC operating condition. While not
given in the ratings, VDC should ideally be limited to 55% VDRM in this product.
Diagram 1.
1.2 Reverse voltage rating.
All devices in this series have a minimum VRRM of 18 Volts.
1.3 Peak turn-off current.
The figure given in maximum ratings is the highest value for normal operation of the device under
conditions given in note 2 of ratings. For other combinations of ITGQ, VD and Cs see the curves in figures
15 & 16. The curves are effective over the normal operating range of the device and assume a snubber
circuit equivalent to that given in diagram 2. If a more complex snubber, such as an Underland circuit, is
employed then the equivalent CS should be used and Ls<0.3µH must be ensured for the curves to be
applied.
Ls
Ds R
Cs
Diagram 2.
1.4 R.M.S and average current.
Measured as for standard thyristor conditions, double side cooled, single phase, 50Hz, 180° half-
sinewave. These are included as a guide to compare the alternative types of GTO thyristors available,
values can not be applied to practical applications, as they do not include switching losses.
1.5 Surge rating and I2t.
Ratings are for half-sinewave, peak value against duration is given in the curve of figure 2.
1.6 Snubber loop inductance.
Use of GTO thyristors with snubber loop inductance, Ls<0.3µH implies no dangerous Vs voltages (see
diagrams 2 & 3) can be applied, provided the other conditions given in note 1.3 are enforced. Alternatively
Vs should be limited to 800 Volts to avoid possible device failure.
Data Sheet. Type G1000NC450 Issue 1
Page 3 of 15
October, 2004