Document
Replaces DS5892-1.0
DFM450NXM45-F000
Fast Recovery Diode Module
DS5892-2 April 2011 (LN28308)
FEATURES
Low Reverse Recovery Charge High Switching Speed Low Forward Volt Drop Isolated AlSiC Base With AlN Substrates Dual Diodes Can Be Paralleled For 900A Rating Lead Free Construction
KEY PARAMETERS
VRRM VF IF IFM
(typ) (max) (max)
4500V 3.0V 450A 900A
4(K) 2(K)
APPLICATIONS
Chopper Diodes
Boost and Buck Converters Free-wheel Circuits
Motor Drives
Resonant Converters
Induction Heating
Multi-level Switch Inverters
The DFM450NXM45-F000 is a dual 4500V, fast recovery diode (FRD) module. Designed for low power loss, the module is suitable for a variety of high voltage applications in motor drives and power conversion.
Fast switching times and low reverse recovery losses allow high frequency operation, making the device suitable for the latest drive designs employing PWM and high frequency switching.
The module incorporates an electrically isolated base plate and low inductance construction enabling circuit designers to optimise circuit layouts and utilise grounded heat sinks for safety.
3(A) 1(A)
External connection required for a single 900A diode Fig. 1 Circuit configuration
ORDERING INFORMATION
Order As:
DFM450NXM45-F000
Note: When ordering, please use the complete part number
Outline type code: N
(See Fig. 7 for further information) Fig. 2 Package
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DFM450NXM45-F000
ABSOLUTE MAXIMUM RATINGS
Stresses above those listed under ‘Absolute Maximum Ratings’ may cause permanent damage to the device. In extreme conditions, as with all semiconductors, this may include potentially hazardous rupture of the package. Appropriate safety precautions should always be followed. Exposure to Absolute Maximum Ratings may affect device reliability.
Tcase = 25°C unless stated otherwise
Symbol
Parameter
VRRM IF IFM I2t
Repetitive peak reverse voltage Forward current (per arm) Max. forward current I2t value fuse current rating
Pmax Visol QPD
Max. power dissipation Isolation voltage – per module Partial discharge – per module
Test Conditions
Tj = 125°C
DC, Tcase = 80°C
Tcase = 115°C, tp = 1ms
VR = 0, tp = 10ms, Tj = 125°C
Tcase = 25°C, Tj = 125°C Commoned terminals to base plate. AC RMS, 1 min, 50Hz IEC1287, V1 = 3500V, V2 = 2600V, 50Hz RMS
Max. Units 4500 V 450 A 900 A 108 kA2s 3125 W 6000 V
10 pC
THERMAL AND MECHANICAL RATINGS
Internal insulation material:
AlN
Baseplate material:
AlSiC
Creepage distance:
33mm
Clearance:
20mm
CTI (Comparative Tracking Index):
350
Symbol
Parameter
Rth(j-c) Rth(c-h)
Tj Tstg
Thermal resistance (per arm) Thermal resistance – case to heatsink (per module) Junction temperature
Storage temperature range
Screw Torque
Test Conditions Continuous dissipation – junction to case Mounting torque 5Nm (with mounting grease)
Mounting – M6 Electrical connections – M8
Min Typ. Max Units - - 32 °C/kW - - 8 °C/kW
-40 - 125 °C -40 - 125 °C
- - 5 Nm - - 10 Nm
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STATIC ELECTRICAL CHARACTERISTICS – PER ARM
Tcase = 25°C unless stated otherwise.
Symbol
Parameter
IRM Peak reverse current
VF Forward voltage
LM Inductance
Test Conditions VR = 4500V, Tj = 125°C IF = 450A IF = 450A, Tj = 125°C
-
DFM450NXM45-F000
Min Typ Max Units 30 mA
3.0 V 3.1 V 30 nH
DYNAMIC ELECTRICAL CHARACTERISTICS – PER ARM
Tcase = 25°C unless stated otherwise
Symbol
Parameter
Qrr Reverse recovery charge Irr Peak reverse recovery current Erec Reverse recovery energy
Test Conditions
IF = 450A VR =2250V dIF/dt = 2250A/μs
Tcase = 125°C unless stated otherwise
Symbol
Parameter
Qrr Reverse recovery charge Irr Peak reverse recovery current Erec Reverse recovery energy
Test Conditions
IF = 450A VR = 2250V dIF/dt = 2250A/μs
Min Typ. Max Units 350 μC 500 A 450 mJ
Min Typ. Max Units 650 μC 600 A 800 mJ
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DFM450NXM45-F000
Fig. 3 Diode typical forward characteristics
Fig. 4 Transient thermal impedance
Fig. 5 DC current rating vs case temperature
Fig. 6 Reverse Bias Safe Operating Area (RBSOA)
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DFM450NXM45-F000
PACKAGE DETAILS
For further package information, please visit our website or contact Customer Services. All dimensions in mm, unless stated otherwise. DO NOT SCALE.
Nominal Weight: 900g Module Outline Type Code: N
Fig. 7 Module outline drawing
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IMPORTANT INFORMATION:
This publication is provided for information only and not for resale.
The products and information in this publication are intended for use by appropriately trained technical personnel.
Due to the diversity of product applications, the information contained herein is provided as a general guide only and does n ot constitute any guarantee of suitability for use in a specific application. The user must evaluate the suitability of the product and the completeness of the product data for the application. The user is responsible for product selection and ensuring all safety and any warning re.