HUF76121D3 datasheet(6/11 Pages) FAIRCHILD

Part #	HUF76121D3

Description	20A, 30V, 0.023 Ohm, N-Channel, Logic Level UltraFET Power MOSFETs

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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HUF76121D3, HUF76121D3S Rev. B1

FIGURE 13. CAPACITANCE vs DRAIN TO SOURCE VOLTAGE

NOTE: Refer to Fairchild Application Notes AN7254 and AN7260.

FIGURE 14. GATE CHARGE WAVEFORMS FOR CONSTANT

GATE CURRENT

FIGURE 15. SWITCHING TIME vs GATE RESISTANCE

FIGURE 16. SWITCHING TIME vs GATE RESISTANCE

Test Circuits and Waveforms

FIGURE 17. UNCLAMPED ENERGY TEST CIRCUIT

FIGURE 18. UNCLAMPED ENERGY WAVEFORMS

Typical Performance Curves (Continued)

0

300

600

900

1200

0

5

10

15

20

25

30

VDS, DRAIN TO SOURCE VOLTAGE (V)

CISS

COSS

CRSS

VGS = 0V, f = 1MHz

CISS = CGS + CGD

CRSS = CGD

COSS ≈ CDS + CGD

0

2

4

6

8

10

0

5

10

15

20

25

VDD = 15V

Qg, GATE CHARGE (nC)

ID = 20A

ID = 10A

ID = 1A

WAVEFORMS IN

DESCENDING ORDER:

0

100

200

300

400

0

10

20304050

RGS, GATE TO SOURCE RESISTANCE (Ω)

VGS = 4.5V, VDD = 15V, ID = 20A, RL = 0.75Ω

tr

tf

td(ON)

td(OFF)

0

50

100

150

200

0

1020

3040

50

RGS, GATE TO SOURCE RESISTANCE (Ω)

VGS = 10V, VDD = 15V, ID = 20A, RL = 0.75Ω

tr

td(OFF)

tf

td(ON)

tP

VGS

0.01

Ω

L

IAS

+

-

VDS

VDD

RG

DUT

VARY tP TO OBTAIN

REQUIRED PEAK IAS

0V

VDD

VDS

BVDSS

tP

IAS

tAV

0

HUF76121D3, HUF76121D3S

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HUF76121D3 Datasheet(PDF) 6 Page - Fairchild Semiconductor

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