STK984-091A-E

No.A2117-5/7

Application Circuit

NOTE

1. A voltage overshoot with vibration will be occurred during a switching operation due to floating inductance of the

power source wiring connected between terminal +B1 and PG. In order that the voltage overshoot between +B1 and

PG, +B1 and each –UBW, each UVW and PG will not exceed its rating, please minimize wiring inductance by

shortening the wiring, also connect a snubber circuit close to between +B1 and PG terminals.

2. With the object of the overcurrent protection circuit fail-safe design, inserting a fuse in +B1 line is recommended.

3. There is a 100k

 (Typ) pull-down resister connected inside of the signal input terminal. However, in the case of

mounting a resister externally to reduce noise due to wiring, please satisfy the input voltage threshold of this

Hybrid-IC.

4. Terminal DIAG 1 and DIAG 2 are the open drain output configuration. Please pull up with 4.7k

 resister to 5V

power supply.

5. There is a 100k

 (Typ) pull-up resister connected inside of the RESET terminal. It operates normally in the open-

state. When the short-circuit protection operates and latches the output OFF, the latched output OFF can be released

by making RESET terminal Low and re-opened.

M

U: 12, 13

V: 14, 15

W: 16, 17

DIAG1: 10

DIAG2: 11

4.7k



4.7k



5V(DC)

RESET: 3

S1: 22

S2: 23

+B1: 20, 21

PG: 18, 19

+

+B2: 1

+

SG: 2

8 to 18V(DC)

UT: 4

VT: 5

WT: 6

UB: 7

VB: 8

WB: 9

STK984-091A-E

2.2

F