STK681-300

No. A0760-7/10

Technical Information

(1) Substrate temperature rise ,

ΔTc (no heat sink) - Internal average power dissipation, PdAV

(2) Internal average power dissipation, Pd, in the DC current-motor current, IO, characteristics (typ values for Pd)

(3) Overheating current control characteristics

Overheating current control functions to prevent driver failure if a motor lock malfunction occurs.

80

20

10

0

0

1.0

2.0

3.0

3.5

0.5

1.5

2.5

ITF02508

50

70

60

40

30

ΔTc - PdAV

Hybrid IC internal average power dissipation, PdAV - W

8

2

1

0

0

1.0

2.0

3.0

3.5

0.5

1.5

2.5

ITF02509

5

7

6

4

3

25

°C

VCC1=24V

VCC2=5.0V

Pd - IO

Motor current, IO - A

1.0

0.5

0

080

20

40

60

100

70

10

30

50

90

120

110

ITF02510

2.5

3.0

3.5

2.0

1.5

IO - Tc

Operating substrate temperature, Tc-

°C

Load 2

Ω+5mH