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PDF R3968FC24L Data sheet ( Hoja de datos )

Número de pieza R3968FC24L
Descripción Distributed Gate Thyristor
Fabricantes IXYS 
Logotipo IXYS Logotipo



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WESTCODE
An IXYS Company
Date:- 17 Oct 2007
Data Sheet Issue:- 3
Provisional Data
Distributed Gate Thyristor
Types R3968F#20x to R3968F#28x
Development Type Number: RX075F#20x-28x
Absolute Maximum Ratings
VDRM
VDSM
VRRM
VRSM
VOLTAGE RATINGS
Repetitive peak off-state voltage, (note 1)
Non-repetitive peak off-state voltage, (note 1)
Repetitive peak reverse voltage, (note 1)
Non-repetitive peak reverse voltage, (note 1)
MAXIMUM
LIMITS
2000-2800
2000-2800
2000-2800
2100-2900
UNITS
V
V
V
V
OTHER RATINGS
IT(AV)M
IT(AV)M
IT(AV)M
IT(RMS)
IT(d.c.)
ITSM
ITSM2
I2t
I2t
(di/dt)cr
VRGM
PG(AV)
PGM
Tj op
Tstg
Maximum average on-state current, Tsink=55°C, (note 2)
Maximum average on-state current. Tsink=85°C, (note 2)
Maximum average on-state current. Tsink=85°C, (note 3)
Nominal RMS on-state current, Tsink=25°C, (note 2)
D.C. on-state current, Tsink=25°C, (note 4)
Peak non-repetitive surge tp=10ms, Vrm=60%VRRM, (note 5)
Peak non-repetitive surge tp=10ms, Vrm10V, (note 5)
I2t capacity for fusing tp=10ms, Vrm=60%VRRM, (note 5)
I2t capacity for fusing tp=10ms, Vrm10V, (note 5)
Non-repetitive
Critical rate of rise of on-state current (note 6) Repetitive (50Hz, 60s)
Continuous (50Hz)
Peak reverse gate voltage
Mean forward gate power
Peak forward gate power
Operating temperature range
Storage temperature range
Notes:-
1) De-rating factor of 0.13% per °C is applicable for Tj below 25°C.
2) Double side cooled, single phase; 50Hz, 180° half-sinewave.
3) Single side cooled, single phase; 50Hz, 180° half-sinewave.
4) Double side cooled.
5) Half-sinewave, 125°C Tj initial.
6) VD=67% VDRM, IFG=2A, tr0.5µs, Tcase=125°C.
MAXIMUM
LIMITS
4001
2691
1582
7988
6712
66.0
72.5
21.78×106
26.28×106
1000
500
250
5
4
50
-40 to +125
-40 to +150
UNITS
A
A
A
A
A
kA
kA
A2s
A2s
A/µs
V
W
W
°C
°C
Provisional Data Sheet. Types R3968F#20x to R3968F#28x Issue 3
Page 1 of 12
October, 2007

1 page




R3968FC24L pdf
WESTCODE An IXYS Company
Distributed Gate Types R3968F#20x to R3968F#28x
15.0 Reverse Recovery Loss
15.1 Determination by Measurement
From waveforms of recovery current obtained from a high frequency shunt (see Note 1, Page 5) and
reverse voltage present during recovery, an instantaneous reverse recovery loss waveform must be
constructed. Let the area under this waveform be E joules per pulse. A new heat sink temperature can
then be evaluated from the following:
( )TK (new) = TK (original ) E k + f RthJK
Where k=0.227 (°C/W)/s
E = Area under reverse loss waveform per pulse in joules (W.s.)
f = rated frequency Hz at the original heat sink temperature.
RthJK = d.c. thermal resistance (°C/W).
The total dissipation is now given by:
W (TOT) = W (original) + E f
15.2 Determination without Measurement
In circumstances where it is not possible to measure voltage and current conditions, or for design
purposes, the additional losses E in joules may be estimated as follows.
Let E be the value of energy per reverse cycle in joules (curves in Figure 9).
Let f be the operating frequency in Hz
( )TK (new) = TK (original ) E Rth f
Where TK (new) is the required maximum heat sink temperature and
TK (original) is the heat sink temperature given with the frequency ratings.
A suitable R-C snubber network is connected across the thyristor to restrict the transient reverse voltage
to a peak value (Vrm) of 67% of the maximum grade. If a different grade is being used or Vrm is other than
67% of Grade, the reverse loss may be approximated by a pro rata adjustment of the maximum value
obtained from the curves.
NOTE 1- Reverse Recovery Loss by Measurement
This thyristor has a low reverse recovered charge and peak reverse recovery current. When measuring
the charge, care must be taken to ensure that:
(a) a.c. coupled devices such as current transformers are not affected by prior passage of high
amplitude forward current.
(b) A suitable, polarised, clipping circuit must be connected to the input of the measuring oscilloscope
to avoid overloading the internal amplifiers by the relatively high amplitude forward current signal
(c) Measurement of reverse recovery waveform should be carried out with an appropriate critically
damped snubber, connected across diode anode to cathode. The formula used for the calculation
of this snubber is shown below:
R2
=
4
Vr
CS di dt
Vr = Commutating source voltage
Where: CS = Snubber capacitance
R = Snubber resistance
Provisional Data Sheet. Types R3968F#20x to R3968F#28x Issue 3
Page 5 of 12
October, 2007

5 Page





R3968FC24L arduino
WESTCODE An IXYS Company
Figure 17 – Square wave energy per pulse
1.00E+03
R3968F#20x-28x
AD Issue 3
di/dt=100A/µs
Tj=125°C
1.00E+02
1.00E+01
8000A
6000A
1.00E+00
4000A
2000A
Distributed Gate Types R3968F#20x to R3968F#28x
Figure 18 – Square wave energy per pulse
1.00E+03
R3968F#20x-28x
AD Issue 3
di/dt=500A/µs
Tj=125°C
1.00E+02
8000A
6000A
4000A
1.00E+01
1.00E+00
2000A
1000A
500A
1.00E-01 1000A
1.00E-01
500A
1.00E-02
1.00E-05
1.00E-04
1.00E-03
Pulse width (s)
1.00E-02
1.00E-02
1.00E-05
Figure 19 – Maximum surge and I2t Ratings
1000000
Gate may temporarily lose control of conduction angle
R3968F#20x-28x
AD Issue 3
Tj (initial) = 125°C
1.00E-04
1.00E-03
Pulse width (s)
1.00E-02
1.00E+09
100000
I2t: VRRM10V
I2t: 60% VRRM
1.00E+08
ITSM: VRRM10V
ITSM: 60% VRRM
10000
1
3 5 10
Duration of surge (ms)
1
5 10
50 100
Duration of surge (cycles @ 50Hz)
1.00E+07
Provisional Data Sheet. Types R3968F#20x to R3968F#28x Issue 3
Page 11 of 12
October, 2007

11 Page







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