DFS45425.pdf 데이터시트 (총 8 페이지) - 파일 다운로드 DFS45425 데이타시트 다운로드

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Replaces March 1998 version, DS4145-3.4
DFS454
DFS454
Fast Recovery Diode
Advance Information
DS4145-4.0 January 2000
APPLICATIONS
s Induction Heating
s A.C. Motor Drives
s Inverters And Choppers
s Welding
s High Frequency Rectification
s UPS
FEATURES
s Double Side Cooling
s High Surge Capability
s Low Recovery Charge
VOLTAGE RATINGS
Type Number
DFS454 25
DFS454 24
DFS454 22
DFS454 20
Repetitive Peak
Reverse Voltage
V
RRM
V
2500
2400
2200
2000
Conditions
V = V + 100V
RSM
RRM
KEY PARAMETERS
VRRM
IF(AV)
IFSM
Qr
trr
2500V
365A
3500A
200µC
2.0µs
CURRENT RATINGS
Symbol
Parameter
Double Side Cooled
IF(AV)
I
F(RMS)
Mean forward current
RMS value
I
F
Continuous (direct) forward current
Single Side Cooled (Anode side)
I
F(AV)
I
F(RMS)
I
F
Mean forward current
RMS value
Continuous (direct) forward current
Outline type code: M771.
See Package Detials for further information.
Conditions
Max. Units
Half wave resistive load, Tcase = 65oC
Tcase = 65oC
T = 65oC
case
Half wave resistive load, T = 65oC
case
Tcase = 65oC
T = 65oC
case
365 A
575 A
525 A
242 A
380 A
335 A
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DFS454
SURGE RATINGS
Symbol
Parameter
I Surge (non-repetitive) forward current
FSM
I2t I2t for fusing
IFSM Surge (non-repetitive) forward current
I2t I2t for fusing
I Surge (non-repetitive) forward current
FSM
I2t I2t for fusing
Conditions
10ms half sine; with 0% VRRM, Tj = 150oC
10ms half sine; with 50% VRRM, Tj = 150oC
10ms half sine; with 100% VRRM, Tj = 150oC
Max. Units
3.5 kA
61 x 103 A2s
2.8 kA
39.2 x 103 A2s
- kA
- A2s
THERMAL AND MECHANICAL DATA
Symbol
Parameter
Rth(j-c) Thermal resistance - junction to case
Rth(c-h) Thermal resistance - case to heatsink
Tvj Virtual junction temperature
Tstg Storage temperature range
- Clamping force
CHARACTERISTICS
Symbol
Parameter
VFM Forward voltage
IRRM Peak reverse current
t
rr
Reverse recovery time
QRA1 Recovered charge (50% chord)
IRM Reverse recovery current
K Soft factor
V
TO
rT
VFRM
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Threshold voltage
Slope resistance
Forward recovery voltage
Conditions
Double side cooled
dc
Single side cooled
Anode dc
Cathode dc
Clamping force 3.5kN
with mounting compound
Double side
Single side
On-state (conducting)
Min. Max. Units
- 0.07 oC/W
- 0.133 oC/W
- 0.147 oC/W
- 0.02 oC/W
- 0.04 oC/W
- 150
-55 175
oC
oC
3.0 4.0 kN
Conditions
At 1000A peak, Tcase = 25oC
At VRRM, Tcase = 150oC
IF = 750A, diRR/dt = 100A/µs
Tcase = 125oC, VR = 100V
At Tvj = 150oC
At Tvj = 150oC
di/dt = 1000A/µs, Tj = 125oC
Typ. Max. Units
- 3.1 V
- 50 mA
2.0 - µs
- 200 µC
150 -
A
1.3 -
-
- 1.64 V
- 1.54 m
- 120 V

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DEFINITION OF K FACTOR AND QRA1
dIR/dt
0.5x IRR
IRR
t1
QRA1 = 0.5x IRR(t1 + t2)
t2 k = t1/t2
τ
CURVES
2000
Measured under pulse
conditions
1750
1500
1250
1000
Tj = 150˚C
750
Tj = 25˚C
500
1.0
2.0 3.0 4.0
Instantaneous forward voltage VF - (V)
5.0
Fig. 1 Maximum (limit) forward characteristics
DFS454
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DFS454
4/8
500
Measured under
pulse conditions
400
Tj = 150˚C
300
200
Tj = 25˚C
100
0
1.0 1.5 2.0 2.5 3.0
Instantaneous forward voltage VF - (V)
Fig. 2 Maximum (limit) forward characteristics
250
VFR
200
δy
150 δx
Current
waveform
Voltage
waveform
di = δy
dt δx
Tj = 100˚C limit
100
Tj = 25˚C limit
50
0
0
500
1000
1500
2000
Rate of rise of forward current dIF/dt - (A/µs)
Fig. 3 Transient forward voltage vs rate of rise of forward current

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10000
1000
100
IF
50µs
QS = 0
QS
Conditions:
Tj = 150˚C,
VR = 100V
tp = 1ms
dIR/dt
IRR
IF = 1000A
IF = 750A
IF = 200A IF = 500A
IF = 100A
DFS454
10
1 10 100 1000
Rate of rise of reverse current dIR/dt - (A/µs)
Fig. 4 Recovered charge
10000
Conditions:
Tj = 150˚C,
VR = 100V
100
IF = 1000A
IF = 750A
IF = 500A
IF = 200A
IF = 100A
10
1
1 10 100 1000
Rate of rise of reverse current dIR/dt - (A/µs)
Fig. 5 Typical reverse recovery current vs rate of rise of reverse current
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