MITSUBISHI <INTELLIGENT POWER MODULES>

PM50B6LB060

FLAT-BASE TYPE

INSULATED PACKAGE

Oct. 2005

PRECAUTIONS FOR TESTING

sponding supply voltage and each input signal should be kept off state.

After this, the specified ON and OFF level setting for each input signal should be done.

2. When performing “SC” tests, the turn-off surge voltage spike at the corresponding protection operation should not be al-

(These test should not be done by using a curve tracer or its equivalent.)

P, (U,V,W,B)

U,V, (N)

U,V,W,B, (N)

IN

Fo

IN

Fo

(0V)

Ic

V

V

P, (U,V,W,B)

(15V)

–

Ic

Fig. 7 Dead Time Measurement Point Example

0V

1.5V

1.5V

1.5V

2V

2V

2V

0V

t

t

1.5V: Input on threshold voltage Vth(on) typical value, 2V: Input off threshold voltage Vth(off) typical value

(Upper Arm)

(Lower Arm)

10%

90%

trr

Irr

tr

td(on)

tc(on)

tc(off)

td(off)

Ic

10%

10%

10%

90%

tf

(ton= td(on) + tr)

(toff= td(off) + tf)

Fo

Fo

P

N

N

U,V,W,B

Vcc

Vcc

Ic

Ic

P

U,V

(15V)

(15V)

Fo

Fo

Fig. 3 Switching Time and SC Test Circuit

Fig. 4 Switching Time Test Waveform

a) Lower Arm Switching

Signal input

(Upper Arm)

Signal input

(Lower Arm)

Signal input

(Upper Arm)

Signal input

(Lower Arm)

b) Upper Arm Switching

Fig. 6 SC Test Waveform

SC Trip

Short Circuit Current

toff(SC)

U,V,W,B, (N)

P, (U,V,W,B)

A

Pulse

(15V)

Ic

Fo

IN

Fo

Constant Current