IRF6795MPbF datasheet(3/9 Pages) IRF

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IRF6795MTRPbF

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Fig 3. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient

(At lower pulse widths ZthJA & ZthJC are combined)

Used double sided cooling , mounting pad with large heatsink.

Mounted on minimum footprint full size board with metalized

back and with small clip heatsink.

Notes:

Rθ is measured at TJ of approximately 90°C.

Surface mounted on 1 in. square Cu

(still air).

Mounted to a PCB with

small clip heatsink (still air)

Mounted on minimum

footprint full size board with

metalized back and with small

clip heatsink (still air)

Absolute Maximum Ratings

Parameter

Units

PD @TA = 25°C

Power Dissipation

PD @TA = 70°C

Power Dissipation

PD @TC = 25°C

Power Dissipation

Peak Soldering Temperature

°C

Operating Junction and

TSTG

Storage Temperature Range

Thermal Resistance

Parameter

Typ.

Max.

Units

RθJA

Junction-to-Ambient

–––

RθJA

Junction-to-Ambient

12.5

–––

RθJA

Junction-to-Ambient

–––

°C/W

RθJC

Junction-to-Case

–––

1.66

RθJ-PCB

Junction-to-PCB Mounted

1.0

–––

Linear Derating Factor

eÃ

W/°C

0.022

270

-40 to + 150

Max.

2.8

1.8

1E-006

1E-005

0.0001

0.001

0.01

0.1

100

1000

t1 , Rectangular Pulse Duration (sec)

0.01

0.1

100

0.20

0.10

D = 0.50

0.02

0.01

0.05

SINGLE PULSE

( THERMAL RESPONSE )

Notes:

1. Duty Factor D = t1/t2

2. Peak Tj = P dm x Zthja + Tc

τJ

τ1

τ2

τ3

Ci=

τi/Ri

Ci=

τi/Ri

τ4

τA

τ5

τ6

τ7

Ri (°C/W)

τi (sec)

1.64e-02

1.01e-06

2.21e-02

6.00e-06

2.30e-01

8.20e-05

8.64e-01

1.56e-03

1.66e+00

3.96e-03

4.90e-01

6.48e-03

2.37e+01

1.03e+00

1.80e+01

3.98e+01

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