F740L View Datasheet(PDF) - Unisonic Technologies

Part Name

Description

MFG CO.

F740L

10A, 400V, 0.55 OHM, N-CHANNEL POWER MOSFET

Unisonic Technologies 

UF740

TEST CIRCUITS AND WAVEFORMS

VDS

L

RG

VDD

D.U.T.

0.01Ω

IAS

Figure 1A. Unclamped Energy Test Circuit

MOSFET

BVDSS

VDS

IAS

VDD

0

tp

tAV

Figure 1B. Unclamped Energy Waveforms

RG

VGS

RL

VDD

D.U.T.

Figure 2A. Switching Time Test Circuit

VDS

90%

10%

0

VGS

010%

50%

PULSE WIDTH

tD(ON) tR

tON

90%

50%

tD(OFF) tF

t OFF

Figure 2B. Resistive Switching Waveforms

12V

BATTERY

0

CURRENT

REGULATOR

VDS

(ISOLATED

SUPPLY)

50kΩ

0.2µF

0.3µF

SAME TYPE

AS DUT

D

G

IG(REF)

DUT

S

IG CURRENT

SAMPLING

RESISTOR

ID CURRENT

SAMPLING

RESISTOR

Figure 3A. Gate Charge Test Circuit

VDD

QGS

Q G(TOT)

QGD

VGS

0

IG(REF)

0

VDS

Figure 3B. Gate Charge Waveforms

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

4 of 6

QW-R502-078,A

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