L6258EX

Functional description

11/32

2.1

Reference voltage

The voltage applied to VREF pin is the reference for the internal DAC and, together with the

sense resistor value, defines the maximum current into the motor winding according to the

following relation:

Figure 4.

Power bridge configuration

I

MAX

0,5

V

REF

⋅

R

S

------------------------------

1

FI

-----

V

REF

R

S

--------------

⋅

==

LOAD

OUT_A

OUT_B

T1

T3

T2

T4

IN_A

IN_B

0

OUTA

OUTB

Iload

0

OUTA

OUTB

Iload

0

OUTA

OUTB

Iload

Fig. 4A

Fig. 4B

Fig. 4C

D97IN624