Vishay HFA70NC60CSL Data Sheet

PD -2.461 rev. B 01/99

HFA70NC60CSL

TM

Ultrafast, Soft Recovery DiodeHEXFRED

Features

• Reduced RFI and EMI

• Reduced Snubbing

• Extensive Characterization of
Recovery Parameters

VR = 600V

VF(typ.) = 1.2V

I

= 70A

F(AV)

Qrr (typ.) = 210nC

I

(typ.) = 6A

RRM

trr(typ.) = 30ns

di

/dt (typ.) = 180A/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 56
IF @ TC = 100°C Continuous Forward Current 27 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 600 V

Single Pulse Forward Current  200
Non-Repetitive Avalanche Energy  220 µJ

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

HFA70NC60CSL

PD-2.461 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

Cathode Anode Breakdown Voltage 600 ––– ––– V IR = 100µA
Max Forward Voltage ––– 1.3 1.5 IF = 35A

––– 1.5 1.7 V IF = 70A
––– 1.2 1.4 IF = 35A, TJ = 125°C

Max Reverse Leakage Current –– – 2 .0 10 µ A VR = VR Rated

––– 0.50 2.0 mA TJ = 125°C, VR = 480V
Junction Capacitance ––– 68 100 pF VR = 200V
Series Inductance ––– 5.5 ––– nH Lead to lead 5mm from package body

See Fig. 1

See Fig. 2
See Fig. 3

Dynamic Recovery Characteristics (per Leg) @ T

= 25°C (unless otherwise specified)

J

Parameter Min. Typ. Max. Units Test Conditions

t

rr

t

rr1

t

rr2

I

RRM1

I

RRM2

Q

rr1

Q

rr2

di

(rec)M

di

(rec)M

Reverse Recovery Time ––– 30 ––– IF = 1.0A, dif/dt = 200A/µs, VR = 30V

––– 70 110 ns TJ = 25°C

––– 115 180 TJ = 125°C IF = 35A
Peak Recovery Current ––– 6. 0 1 1 TJ = 25°C

––– 9.0 16 TJ = 125°C VR = 200V
Reverse Recovery Charge ––– 2 10 580 TJ = 25°C

––– 520 1400 TJ = 125°C dif/dt = 200A/µs

/dt1 Peak Rate of Fall of Recovery Current ––– 280 ––– TJ = 25°C
/dt2 During t

b

––– 180 ––– TJ = 125°C

FOOT PRINT

A

nC

A/µs

See Fig.

5

See Fig.

6

See Fig.

7

See Fig.

8

Outline D 61- 8-SL

Dimensions in millimeters and (inches)

2

1000

F

100

T = 150°C

J

T = 125°C

J

T = 25°C

10

J

Instantaneous Forward Current - I (A)

1

0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2

Forward Voltage Drop - V (V)

FM

HFA70NC60CSL

PD-2.461 rev. B 01/99

10000

T = 150°C

1000

R

100

10

1

0.1

R e ve rs e C u rre n t - I (µA)

0.01

Fig. 2 - Typical Reverse Current vs. Reverse

A

1000

T

100

J

T = 125°C

J

T = 25°C

J

0 200 400 600

Reverse Voltage - V (V )

R

Voltage, (per Leg)

T = 25°C

J

Fig. 1 - Maximum Forward Voltage Drop

vs. Instantaneous Forward Current,

(per Leg)

1

D = 0.50

D = 0.33
D = 0.25

thJC

D = 0 .17
D = 0.08

0.1

S ing le P u ls e
(Therma l R e s ista n c e)

Therm al Im pedance - Z (K/W)

0.01

0.0001 0.001 0.01 0.1 1 1 0 100

t , Rec tangula r Pulse Duration (Seconds)

1

Fig. 4 - Maximum Thermal Impedance Z

10

Junction Capacitance - C (pF)

1 10 100 1000

Reverse Voltage - V (V)

R

Fig. 3 - Typical Junction Capacitance vs.

Reverse Voltage, (per Leg)

P

DM

t

1

t

2

Notes:

1. D uty f a c to r D = t / t

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

Characteristics, (per Leg)

thjc

J

DM

21

th JC

C

3

HFA70NC60CSL

PD-2.461 rev. B 01/99

150

V = 200V

R

T = 125°C

J

T = 25°C

J

120

I = 70 A

F

I = 35 A

F

90

I = 15 A

F

rr

t - (n s )

60

30

100 1000

di /d t - (A /µs )

f

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

(per Leg)

1600

V = 200V

R

T = 125°C

J

T = 25°C

J

1200

I = 7 0A

F

I = 35 A

I = 1 5A

F

F

800

RR

Q - (n C )

400

40

V = 200V

R

T = 125°C

J

T = 25°C

J

30

I = 70 A

20

rr

t - (n s )

I = 1 5A

F

10

0

100 1000

F

I = 35 A

F

di /d t - (A/µs )

f

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

(per Leg)

10000

V = 200V

R

T = 125°C

J

T = 25°C

J

I = 15 A

I = 35 A

F

I = 7 0A

F

F

di(re c )M /d t - (A /µ s)

1000

100

0

100 1000

di /d t - (A/µ s )

f

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

(per Leg)

4

10

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

HFA70NC60CSL

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-2.461 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 IT CH

FREE-WHEEL
D IODE

Vd = 50V

+

DECAY
TIME

V

(AVAL)

V

R(RATED)

Fig. 11 - Avalanche Test Circuit and Waveforms

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