Vishay HFA80NC40CSL Data Sheet

HEXFRED

PD -2.472 rev. B 01/99

HFA80NC40CSL

TM

Ultrafast, Soft Recovery Diode

Features

• Reduced RFI and EMI

• Reduced Snubbing

• Extensive Characterization of
Recovery Parameters

VR = 400V

VF(typ.) = 1V

I

= 80A

F(AV)

Qrr (typ.) = 200nC

I

(typ.) = 6A

RRM

trr(typ.) = 30ns

di

/dt (typ.) = 190A/µs

(rec)M

Description

HEXFREDTM diodes are optimized to reduce losses and EMI/RFI in high frequency
power conditioning systems. An extensive characterization of the recovery
behavior for different values of current, temperature and di/dt simplifies the
calculations of losses in the operating conditions. The softness of the recovery
eliminates the need for a snubber in most applications. These devices are ideally
suited for power converters, motors drives and other applications where
switching losses are significant portion of the total losses.

SLD-61-8

Absolute Maximum Ratings (per Leg)

Parameter Max. Units

V

R

IF @ TC = 25°C Continuous Forward Current 85
IF @ TC = 100°C Continuous Forward Current 42 A
I

FSM

E

AS

PD @ TC = 25°C Maximum Power Dissipation 150
PD @ TC = 100°C Maximum Power Dissipation 59
T

J

T

STG

Cathode-to-Anode Voltage 400 V

Single Pulse Forward Current  300
Non-Repetitive Avalanche Energy  1.4 mJ

Operating Junction and
Storage Temperature Range
Soldering Temperature, for 10 sec. 300 (0.063 in. (1.6mm) from case)

-55 to +150 °C

W

Thermal - Mechanical Characteristics

Parameter Min. Typ. Max. Units

R

thJC

Wt Weight –––– 4.3 (0.15) –––– g (oz)

Note:  Limited by junction temperature

 L = 100µH, duty cycle limited by max T
 125°C

Junction-to-Case, Single Leg Conducting –––– –––– 0.85
Junction-to-Case, Both Legs Conducting –––– –––– 0.42

J

°C/W

K/W

1

HFA80NC40CSL

PD-2.472 rev. B 01/99

Electrical Characteristics (per Leg) @ TJ = 25°C (unless otherwise specified)

Parameter Min. Typ. Max. Units Test Conditions

V

BR

V

FM

I

RM

C

T

L

S

Dynamic Recovery Characteristics (per Leg) @ TJ = 25°C (unless otherwise specified)

t

rr

t

rr1

t

rr2

I

RRM1

I

RRM2

Q

rr1

Q

rr2

di

(rec)M

di

(rec)M

Cathode Anode Breakdown Voltage 400 ––– ––– V IR = 100µA
Max Forward Voltage ––– 1.1 1.3 IF = 40A

––– 1.3 1.5 V IF = 80A
––– 1.0 1.2 IF = 40A, TJ = 125°C

Max Reverse Leakage Current ––– 0.50 3.0 µA VR = VR Rated

––– 0.75 4.0 mA TJ = 125°C, VR = 320V
Junction Capacitance ––– 9 0 125 pF VR = 200V
Series Inductance ––– 5.5 – –– nH Lead to lead 5mm from package body

Parameter Min. Typ. Max. Units Test Conditions
Reverse Recovery Time ––– 30 ––– IF = 1.0A, dif/dt = 200A/µs, VR = 30V

––– 67 100 ns TJ = 25°C

––– 110 170 TJ = 125°C IF = 40A
Peak Recovery Current ––– 6. 0 11 TJ = 25°C

––– 9.0 16 TJ = 125°C VR = 200V
Reverse Recovery Charge ––– 2 00 540 TJ = 25°C

––– 500 1300 TJ = 125°C dif/dt = 200A/µs

/dt1 Peak Rate of Fall of Recovery Current ––– 240 ––– TJ = 25°C
/dt2 During t

b

––– 190 ––– TJ = 125°C

A

nC

A/µs

See Fig.

5

See Fig.

6

See Fig.

7

See Fig.

8

See Fig. 1

See Fig. 2
See Fig. 3

FOOT PRINT

Outline D 61- 8-SL

Dimensions in millimeters and (inches)

2

1000

10000

1000

R

100

HFA80NC40CSL

PD-2.472 rev. B 01/99

T = 150°C

J

T = 125°C

J

F

100

T = 150°C

J

T = 125°C

J

T = 25°C

10

J

Instantan eous Forw ard Current - I (A)

1

0.4 0.8 1.2 1.6 2.0

Forward Voltage Drop - V (V)

FM

Fig. 1 - Maximum Forward Voltage Drop

vs. Instantaneous Forward Current,

(per Leg)

1

10

1

T = 25°C

R ev e rs e C u rre n t - I (µ A)

0.1

J

0 100 200 300 400

Reverse Voltage - V (V )

R

Fig. 2 - Typical Reverse Current vs. Reverse

Voltage, (per Leg)

A

1000

T

100

10

Junction Ca pacita nce - C (p F)

1 10 100 1000

Reverse Voltage - V (V )

T = 25°C

J

R

Fig. 3 - Typical Junction Capacitance vs.

Reverse Voltage, (per Leg)

D = 0.50

D = 0.33
D = 0.25

thJC

D = 0 .17
D = 0.08

0.1

Single Pu lse
(The rm a l Re s ista nc e)

P

DM

t

1

t

2

Notes:

1. Duty fa c to r D = t / t

Thermal Impedance - Z (K/W)

0.01

0.0001 0.001 0.01 0.1 1 10 100

t , Rec tangular Pulse Duration (Seconds)

1

Fig. 4 - Maximum Thermal Impedance Z

2. P e a k T = P x Z + T

Characteristics, (per Leg)

thjc

J

DM

21

th JC

C

3

HFA80NC40CSL

PD-2.472 rev. B 01/99

160

V = 200V

R

T = 125°C

J

T = 25°C

140

120

J

100

V = 200V

R

T = 125°C

J

T = 25°C

J

I =100A

F

100

I = 100A

rr

t - (n s )

F

80

60

40

100 1000

I = 4 0A

F

di /dt - (A/µ s)

f

I = 20 A

F

Fig. 5 - Typical Reverse Recovery vs. dif/dt,

(per Leg)

2500

V = 200V

R

T = 125°C

J

T = 25°C

J

2000

Q - ( n C )

1500

RR

1000

500

I = 20A

F

I = 40A

F

I = 100A

F

10

IRRM

I - ( A )

1

100 1000

di /d t - (A/µ s )

f

I = 2 0A

F

I = 40A

F

Fig. 6 - Typical Recovery Current vs. dif/dt,

(per Leg)

10000

V = 200V

R

T = 125°C

J

T = 25°C

J

I = 20A

I = 4 0A

F

F

di(re c )M /d t - (A /µ s)

1000

I = 100A

F

0

100 1000

di /d t - (A/µ s)

f

Fig. 7 - Typical Stored Charge vs. dif/dt,

(per Leg)

4

100

100 1000

Fig. 8 - Typical di

di /d t - (A/µ s)

f

/dt vs. dif/dt,

(rec)M

(per Leg)

REVERSE RECOVERY CIRCUIT

V = 200V

R

Ω

0.01

L = 70µH

D.U.T.

dif/dt
ADJUST

G

D

IRFP250

S

HFA80NC40CSL

I

F

0

1

1. dif/dt - Rate of change of current
through zero crossing

2. I

- Peak reverse recovery current

RRM

3. trr - Reverse recovery time measured
from zero crossing point of negative
going IF to point where a line passing
through 0.75 I
extrapolated to zero current

RRM

and 0.50 I

di /dt

f

RRM

t

a

PD-2.472 rev. B 01/99

3

t

rr

t

b

4

Q

2

I

RRM

0.75

4. Qrr - Area under curve defined by t
and I

RRM

t
Qrr =
2

5. di

(rec)M

current during tb portion of t

rr

0.5

I

RRM

di(rec)M/dt

I

RRM

X I

rr

/dt - Peak rate of change of

5

rr

RRM

rr

Fig. 9 - Reverse Recovery Parameter Test

Circuit

L = 100µH

Fig. 10 - Reverse Recovery Waveform and

Definitions

I

L(PK)

HIG H-SPEED

DUT

Rg = 25 ohm

CURREN T
MONITOR

S W ITC H

FREE-WHEEL
D IOD E

Vd = 50V

+

DECAY
TIME

V

(AVAL)

V

R(RATED)

Fig. 11 - Avalanche Test Circuit and Waveforms

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