MAC08BT1 Series

3–43

Motorola Thyristor Device Data

+

1.0

0.8

0.7

0.5

0.4

0.2

0

IT(RMS), RMS ON-STATE CURRENT (AMPS)

Figure 8. Power Dissipation

0.5

0.4

0.3

0.2

0.1

0

0.6

0.7

0.8

dc

90

°

120

°

10

1.0

di/dtc, RATE OF CHANGE OF COMMUTATING CURRENT (A/mS)

t, TIME (SECONDS)

0.01

1.0

0.001

0.0001

1.0

0.01

0.1

10

100

10

0.1

10

1.0

TJ, JUNCTION TEMPERATURE (°C)

90

80

70

60

100

110

VDRM = 200 V

400 Hz

300 Hz

0.9

0.6

0.3

0.1

1.0

CHARGE

CONTROL

75 VRMS,

ADJUST FOR

ITM, 60 Hz VAC

CHARGE

5

µF

NON-POLAR

CL

80 mHY

LL

MEASURE I

1N914

51

2

1

RS

56

0.047 CS

ADJUST FOR

dv/dt(c)

1N4007

200 V

G

110

°

VDRM

ITM

60 Hz

tw

30

°

TRIGGER

Component values are for verification of rated (dv/dt)c. See AN1048 for additional information.

60

°

80

°

180 Hz

α = 180°

60

°

100

°

α

α

ANGLE

Figure 9. Thermal Response, Device

Mounted on Figure 1 Printed Circuit Board

Figure 10. Simplified Q1 (dv/dt)c Test Circuit

Figure 11. Typical Commutating dv/dt versus

Current Crossing Rate and Junction Temperature

Figure 12. Typical Commutating dv/dt versus

Junction Temperature at 0.8 Amps RMS

f

+ 1

+

6f I

TM

1000

–