RF1K49211 datasheet(3/8 Pages) FAIRCHILD

Part #	RF1K49211

Description	7A, 12V, 0.020 Ohm, Logic Level, Single N-Channel LittleFET??Power MOSFET

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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RF1K49211 Rev. B

Typical Performance Curves

FIGURE 1. NORMALIZED POWER DISSIPATION vs AMBIENT

TEMPERATURE

FIGURE 2. MAXIMUM CONTINUOUS DRAIN CURRENT vs

AMBIENT TEMPERATURE

FIGURE 3. NORMALIZED MAXIMUM TRANSIENT THERMAL IMPEDANCE

FIGURE 4. FORWARD BIAS SAFE OPERATING AREA

FIGURE 5. PEAK CURRENT CAPABILITY

TA, AMBIENT TEMPERATURE (

oC)

0

25

50

75

100

150

0.2

0.4

0.6

0.8

1.0

1.2

125

4

2

0

25

50

75

100

125

150

6

TA, AMBIENT TEMPERATURE (

oC)

8

t1, RECTANGULAR PULSE DURATION (s)

0.01

0.1

1

10

10-3

10-1

100

101

102

103

10-2

PDM

t1

t2

NOTES:

DUTY FACTOR: D = t1/t2

PEAK TJ = PDM x Z

θJA x RθJA + TA

DUTY CYCLE - DESCENDING ORDER

0.5

0.2

0.1

0.05

0.01

0.02

SINGLE PULSE

10-4

10-5

0.001

VDS, DRAIN TO SOURCE VOLTAGE (V)

110

50

0.01

1

100

10

0.1

DC

5ms

100ms

1s

10ms

LIMITED BY rDS(ON)

AREA MAY BE

OPERATION IN THIS

VDSS(MAX) = 12V

TJ = MAX RATED

TA = 25

oC

t, PULSE WIDTH (s)

300

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:

TA = 25

oC

RF1K49211

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RF1K49211 Datasheet(PDF) 3 Page - Fairchild Semiconductor

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