RF1K49088 datasheet(3/7 Pages) FAIRCHILD

Part #	RF1K49088

Description	3.5A, 30V, Avalanche Rated, Logic Level, Dual N-Channel LittleFET??Enhancement Mode Power MOSFET

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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3 / 7 page

5-60

Typical Performance Curves

FIGURE 1. NORMALIZED POWER DISSIPATION vs

TEMPERATURE DERATING CURVE

FIGURE 2. MAXIMUM CONTINUOUS DRAIN CURRENT vs

TEMPERATURE

FIGURE 3. NORMALIZED MAXIMUM TRANSIENT THERMAL

IMPEDANCE

FIGURE 4. FORWARD BIAS SAFE OPERATING AREA

FIGURE 5. PEAK CURRENT CAPABILITY

NOTE: Refer to Harris Application Notes AN9321 and AN9322.

FIGURE 6. UNCLAMPED INDUCTIVE SWITCHING CAPABILITY

TA, AMBIENT TEMPERATURE (

oC)

0.0

0

25

50

75

100

150

0.2

0.4

0.6

0.8

1.0

1.2

125

2.0

1.0

0.5

0.0

25

50

75

100

125

150

1.5

3.0

2.5

TA, AMBIENT TEMPERATURE (

oC)

4.0

3.5

t, RECTANGULAR PULSE DURATION (s)

10-3

10-1

100

101

102

0.01

10

0.1

1

10-2

103

NOTES:

DUTY FACTOR: D = t1/t2

PEAK TJ = PDM x Z

θJA x RθJA + TA

PDM

t1

t2

SINGLE PULSE

DUTY CYCLE - DESCENDING ORDER

0.5

0.2

0.1

0.05

0.01

0.02

VDS, DRAIN TO SOURCE VOLTAGE (V)

1

10

100

0.01

1

100

10

0.1

DC

5ms

100ms

1s

10ms

LIMITED BY rDS(ON)

AREA MAY BE

OPERATION IN THIS

VDSS MAX = 30V

TJ = MAX RATED

TA = 25

oC

t, PULSE WIDTH (s)

200

10

1

10-5

10-4

10-3

10-2

10-1

100

101

VGS = 5V

100

TRANSCONDUCTANCE

MAY LIMIT CURRENT

IN THIS REGION

I

= I25

150 - TA

125

FOR TEMPERATURES

ABOVE 25oC DERATE PEAK

CURRENT AS FOLLOWS:

VGS = 10V

TA = 25

oC

1

10

100

10

0.1

20

1

tAV, TIME IN AVALANCHE (ms)

STARTING TJ = 150

oC

STARTING TJ = 25

oC

tAV = (L)(IAS)/(1.3*RATED BVDSS - VDD)

If R = 0

If R

≠ 0

tAV = (L/R)ln[(IAS*R)/(1.3*RATED BVDSS - VDD) +1]

RF1K49088

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RF1K49088 Datasheet(PDF) 3 Page - Fairchild Semiconductor

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