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444CNQ040中文资料

444CNQ040中文资料
444CNQ040中文资料

I F(AV)Rectangular

440

A

waveform V

RRM range

35 to 45V I FSM @ tp = 5 μs sine 35,000A V F @ 220Apk, T J =125°C 0.51

V

(per leg)T J

range

- 55 to 125

°C

Characteristics

444CNQ...Units

Major Ratings and Characteristics The 444CNQ center tap Schottky rectifier module series has been optimized for low reverse leakage at high temperature.The proprietary barrier technology allows for reliable opera-tion up to 125 °C junction temperature. Typical applications are in high current switching power supplies, plating power supplies, UPS systems, converters, free-wheeling diodes,welding, and reverse battery protection.125 °C T J operation Center tap module

High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low forward voltage drop High frequency operation

Guard ring for enhanced ruggedness and long term reliability

Description/Features

TO-244AB

SCHOTTKY RECTIFIER

440 Amp

444CNQ... SERIES

Bulletin PD-2.243 rev. B 07/00

444CNQ... Series

2PD-2.243 rev. A 12/97

https://www.sodocs.net/doc/7115451441.html,

Part number

444CNQ035

444CNQ040

444CNQ045

V R

Max. DC Reverse Voltage (V)

V RWM Max. Working Peak Reverse Voltage (V)

Voltage Ratings

Absolute Maximum Ratings

Following any rated load condition and with

rated V RRM applied Parameters

444CNQ Units Conditions

A

I F(AV)Max. Average Forward Current

440

A

50% duty cycle @ T C = 81 °C, rectangular wave form

* See Fig. 5I FSM Max. Peak One Cycle Non-Repetitive 35,0005μs Sine or 3μs Rect. pulse

Surge Current (Per Leg) * See Fig. 7380010ms Sine or 6ms Rect. pulse E AS Non-Repetitive A valanche E nergy 270mJ T J = 25 °C, I AS = 40 Amps, L = 0.34 mH

(Per Leg)

I AR

Repetitive A valanche C urrent 40

A Current decaying linearly to zero in 1 μsec

(Per Leg)

Frequency limited by T J max. V A = 1.5 x V R typical

T J Max. Junction Temperature Range -55 to 125°C T stg

Max. Storage Temperature Range

-55 to 125°C

R thJC Max. Thermal Resistance Junction

0.20°C/W DC o peration * See Fig. 4

to Case (Per Leg)R thJC Max. Thermal Resistance Junction

0.10°C/W DC o peration

to Case (Per Package)R thCS Typical Thermal Resistance, Case

0.10°C/W Mounting surface , smooth and greased to Heatsink wt Approximate W eight 79 (2.80)g (oz.)T Mounting Torque Base Min.

40 (35)Max.

58 (50)Mounting Torque Center Hole Typ.17 (15)Terminal T orque Min.

58 (50)Max.

86 (75)

Case Style

TO - 244AB Modified JEDEC

Thermal-Mechanical Specifications

Parameters

444CNQ Units Conditions

T J = 25 °C V R = rated V R

Kg-cm (Ibf-in)

Electrical Specifications

35

40

45

V FM

Max. Forward Voltage Drop 0.53

V @ 220A (Per Leg) * See Fig. 1(1)

0.69V @ 440A 0.51V @ 220A 0.68V @ 440A I RM Max. Reverse Leakage Current 20mA T J = 25 °C (Per Leg) * See Fig. 2

(1)

2400mA T J = 125 °C

C T Max. Junction Capacitance (Per Leg)10,300pF V R = 5V DC , (test signal range 100Khz to 1Mhz) 25°C L S

Typical Series Inductance (Per Leg)

5.0nH From top of terminal hole to mounting plane

dv/dt Max. Voltage Rate of Change

10,000

V/ μs

(Rated V R )

Parameters

444CNQ Units Conditions

T J = 100 °C (1) Pulse Width < 300μs, Duty Cycle <2%

444CNQ... Series

3

PD-2.243 rev. A 12/97

https://www.sodocs.net/doc/7115451441.html,

444CNQ... Series

4PD-2.243 rev. A 12/97

https://www.sodocs.net/doc/7115451441.html,

Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)

Fig. 5 - Max. Allowable Case Temperature

Vs. Average Forward Current (Per Leg)

Fig. 8 - Unclamped Inductive Test Circuit

Fig. 6 - Forward Power Loss Characteristics

(Per Leg)

25710121517200

50100150200250300350

89101112130

50100150200250300350

1000

10000

100000

10

100100010000

FREE-W H EEL D IO D E 40HFL40S02

C URRENT M O N ITO R

H IG H-SPE ED SW ITC H IRFP460L

D UT Rg = 25 oh m

V d = 25 Volt

+

Average Forward Current - I F(AV) (A)A l l o w a b l e C a s e T e m p e r a t u r e (°C )

Average Forward Current - I F(AV) (A)A v e r a g e P o w e r L o s s (W a t t s )

Square Wave Pulse Duration - t p (microsec)N o n -R e p e t i t i v e S u r g e C u r r e n t - I F S M (A )

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