TPIC0107B

PWM CONTROL INTELLIGENT H-BRIDGE

SLIS067 – NOVEMBER 1998

6

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

Maximum continuous bridge current versus time based on 50 FITs at 100,000 hours operating life (90%

confidence model)

5

0

010

20

30

40

50

60

10

70

80

90

100

TJ = 75°C

TJ = 100°C

TJ = 125°C

TJ = 150°C

t – Time

× 1000-h

Figure 1.

Electromigration Reliability Data

Example:

Average continuous bridge current, ICON

Average junction temperature, TJ

Operating lifetime of device based on electromigration

2 A

125

°C

>20,000 h

3 A

125

°C

>10,000 h