MBR4045WT - International Rectifier

SCHOTTKY RECTIFIER 40 Amp

MBR4045WT

Bulletin PD-20715 rev. A 09/00

1www.irf.com

Major Ratings and Characteristics

IF(AV) Rectangular waveform 40 A

(Per Device)

FRM @ TC

= 125°C 40 A

(Per Leg)

VRRM 45 V

FSM @ tp = 5 µs sine 1020 A

VF@

20 Apk, TJ

= 125°C 0.56 V

Jrange - 55 to 150 °C

Characteristics Values Units

Description/Features

The MBR4045WT center tap Schottky rectifier has been opti-

mized for very low forward voltage drop, with moderate leakage.

The proprietary barrier technology allows for reliable operation

up to 150° C junction temperature. Typical applications are in

switching power supplies, converters, free-wheeling diodes,

and reverse battery protection.

150° C TJ operation

Center tap TO-247 package

High purity, high temperature epoxy encapsulation for

enhanced mechanical strength and moisture resistance

Very low forward voltage drop

High frequency operation

Guard ring for enhanced ruggedness and long term

reliability

Case Styles

MBR4045WT

TO-247AC

IF(AV) = 40Amp

VR = 45V

MBR4045WT

Bulletin PD-20715 rev. A 09/00

2www.irf.com

TJMax. Junction Temperature Range -55 to 150 °C

Tstg Max. Storage Temperature Range -55 to 175 °C

RthJC Max. Thermal Resistance 1.4 °C/W DC operation

Junction to Case (Per Package)

RthCS Typical Thermal Resistance 0.7 °C/W Mounting surface, smooth and greased

Case to Heatsink

wt Approximate Weight 6 (0.21) g (oz.)

T Mounting Torque Min. 6 (5)

Max. 12 (10)

Case Style TO-247AC (TO-3P) JEDEC

Thermal-Mechanical Specifications

Parameters Values Units Conditions

Part number MBR4045WT

VRMax. DC Reverse Voltage (V)

VRWM Max. Working Peak Reverse Voltage (V) 45

Voltage Ratings

Kg-cm

(Ibf-in)

IF(AV) Max. Average Forward (Per Leg) 20 @ T C = 125°C, 50% duty cycle, rectangular waveform

Current (Per Device) 40

IFRM Peak Repetitive Forward 40 A Rated VR

, square wave, 20kHz

Current (Per Leg) TC = 125° C

IFSM Max.Peak One Cycle Non-Repetitive 1020 5µs Sine or 3µs Rect. pulse

Surge Current ( Per Leg) See fig.7 265 10ms Sine or 6ms Rect. pulse

EAS Non-Repetitive Avalanche Energy 20 mJ TJ

= 25 °C, IAS

= 3 Amps, L = 4.40 mH

(Per Leg)

IAR Repetitive Avalanche Current 3 A Current decaying linearly to zero in 1 µsec

(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical

Following any rated

load condition and with

rated VRRM applied

Absolute Maximum Ratings

VFM Max. Forward Voltage Drop 0.59 V @ 20A

0.78 V @ 40A

(1) 0.56 V @ 20A

0.72 V @ 40A

IRM Max. Instantaneus Reverse Current 1.75 mA TJ = 25 °C

(1) 50 mA TJ = 100 °C

85 mA TJ = 125 °C

VF(TO) Threshold Voltage 0.29 V TJ = TJ max.

rtForward Slope Resistance 10.3 mΩ

CTMax. Junction Capacitance 900 pF VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C

LSTypical Series Inductance 7.5 nH Measured from top of terminal to mounting plane

dv/dt Max. Voltage Rate of Change 10000 V/ µs

(Rated VR)

Electrical Specifications

Parameters Values Units Conditions

Rated DC voltage

TJ = 125 °C

(1) Pulse Width < 300µs, Duty Cycle <2%

TJ = 25 °C

Parameters Values Units Conditions

MBR4045WT

Bulletin PD-20715 rev. A 09/00

www.irf.com

Fig. 1 - Max. Forward Voltage Drop Characteristics

Fig. 4 - Max. Thermal Impedance ZthJC Characteristics

Forward Voltage Drop - VFM (V)

Instantaneous Forward Current - I F (A)

Reverse Current - I R (mA)

Reverse Voltage - VR

(V)

Reverse Voltage - VR (V)

Junction Capacitance - C T (pF)

1, Rectangular Pulse Duration (Seconds)

Thermal Impedance Z thJC (°C/W)

Fig. 3 - Typical Junction Capacitance

Vs. Reverse Voltage

Fig. 2 - Typical Values Of Reverse Current

Vs. Reverse Voltage

100

1000

0 0.4 0.8 1.2 1.6 2

T = 150˚C

T = 125˚C

T = 25˚C

100

1000

0 1020304050

T = 25˚C

.01

0.1

0.00001 0.0001 0.001 0.01 0.1 1 10 100

Single Pulse

(Thermal Resistance)

D = 0.75

D = 0.50

D = 0.33

D = 0.25

D = 0.20

Notes:

1. Duty factor D = t / t

2. Peak T = P x Z + T

thJC C

.001

0.01

0.1

100

1000

0 1020304050

125˚C

100˚C

75˚C

50˚C

25˚C

T = 150˚C

MBR4045WT

Bulletin PD-20715 rev. A 09/00

4www.irf.com

Fig. 5 - Max. Allowable Case Temperature

Vs. Average Forward Current

FREE-WHEEL

DIOD E

40HFL40S02

CURRENT

MONITOR

HIGH-SPEED

SWITCH

IRFP460

DUT

Rg = 25 ohm

Vd = 25 Volt

Average Forward Current - I F(AV)

(A)

Square Wave Pulse Duration - t p (microsec)

Fig. 7 - Max. Non-Repetitive Surge Current

Allowable Case Temperature (°C)

Non-Repetitive Surge Current - I FSM (A)

Fig. 6 - Forward Power Loss Characteristics

Average Forward Current - I F(AV)

(A)

Average Power Loss (Watts)

Fig. 8 - Unclamped Inductive Test Circuit

(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ;

Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);

PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = rated VR

0 5 10 15 20 25 30

RMS Limit

D = 0.20

D = 0.25

D = 0.33

D = 0.50

D = 0.75

100

1000

10 100 1000 10000

At Any Rated Load Condition

And With Rated V Applied

Following Surge RRM

100

120

140

160

0 5 10 15 20 25 30

see note (2)

Square wave (D = 0.50)

Rated V applied

MBR4045WT

Bulletin PD-20715 rev. A 09/00

www.irf.com

Outline Table

Conform to JEDEC outline TO-247AC (TO-3P)

Dimensions in millimeters and (inches)

Ordering Information Table

Device Code

124

1- Schottky MBR Series

2- Currrent Rating : 40 = 40A

3- Voltage Rating : 45 = 45V

4- Circuit Configuration :

Center Tap (Dual) TO-247

MBR 40 45 WT

15.90 (0.626)

15.30 (0.602)

14.20 (0.559)

14.80 (0.583)

3.70 (0.145)

4.30 (0.170)

5.30 (0.208)

5.70 (0.225)

5.50 (0.217)

4.50 (0.177)

(2 PLCS.)

3.55 (0.139)

3.65 (0.144)

2.20 (0.087)

MAX.

1.00 (0.039)

1.40 (0.056)

3.20 (0.126)

MAX. 0.40 (0.213)

0.80 (0.032)

4.70 (0.185)

5.30 (0.209)

1.5 (0.059)

2.5 (0.098)

2.40 (0.095

)

MAX.

5.43 (0.213)

5.47 (0.216)

20.30 (0.800)

19.70 (0.775)

1 2 3

DIA.

BASE

COMMON

CATHODE

COMMON

CATHODE

ANODEANODE

12 3

MBR4045WT

Bulletin PD-20715 rev. A 09/00

6www.irf.com

WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 U.S.A. Tel: (310) 322 3331. Fax: (310) 322 3332.

EUROPEAN HEADQUARTERS: Hurst Green, Oxted, Surrey RH8 9BB, U.K. Tel: ++ 44 1883 732020. Fax: ++ 44 1883 733408.

IR CANADA: 15 Lincoln Court, Brampton, Markham, Ontario L6T3Z2. Tel: (905) 453 2200. Fax: (905) 475 8801.

IR GERMANY: Saalburgstrasse 157, 61350 Bad Homburg. Tel: ++ 49 6172 96590. Fax: ++ 49 6172 965933.

IR ITALY: Via Liguria 49, 10071 Borgaro, Torino. Tel: ++ 39 11 4510111. Fax: ++ 39 11 4510220.

IR FAR EAST: K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo, Japan 171. Tel: 81 3 3983 0086.

IR SOUTHEAST ASIA: 1 Kim Seng Promenade, Great World City West Tower,13-11, Singapore 237994. Tel: ++ 65 838 4630.

IR TAIWAN: 16 Fl. Suite D.207, Sec. 2, Tun Haw South Road, Taipei, 10673, Taiwan. Tel: 886 2 2377 9936.

http://www.irf.com Fax-On-Demand: +44 1883 733420 Data and specifications subject to change without notice.

MBR4045WT

********************************************

This model has been developed by

Wizard SPICE MODEL GENERATOR (1999)

(International Rectifier Corporation)

contains Proprietary Information

********************************************

SPICE Model Diode is composed by a

simple diode plus paralled VCG2T

********************************************

.SUBCKT MBR4045WT ANO CAT

D1 ANO 1 DMOD (0.07089)

*Define diode model

.MODEL DMOD D(IS=1.87674447387184E-04A,N=1.0815129563336,BV=51V,

+ IBV=0.370052071012812A,RS= 0.000482052,CJO=1.77083341686508E-08,

+ VJ=2.63120433908928,XTI=2, EG=0.680665296447736)

********************************************

*Implementation of VCG2T

VX 1 2 DC 0V

R1 2 CAT TRES 1E-6

.MODEL TRES RES(R=1,TC1=30.266567848718)

GP1 ANO CAT VALUE={-ABS(I(VX))*(EXP((((-2.374754E-03/30.26657)*((V(2,CAT)*1E6)/(I(VX)+1E-6)-

1))+1)*6.049001E-02*ABS(V(ANO,CAT)))-1)}

********************************************

.ENDS MBR4045WT

Thermal Model Subcircuit

.SUBCKT MBR4045WT 5 1

CTHERM1 5 4 8.75E-01

CTHERM2 4 3 1.19E+01

CTHERM3 3 2 7.69E+01

CTHERM4 2 1 4.98E+02

RTHERM1 5 4 1.00E-04

RTHERM2 4 3 7.15E-01

RTHERM1 3 2 5.30E-01

RTHERM1 2 1 1.50E-01

.ENDS MBR4045WT