Data Sheet

36

Rev. 1.2, 2016-01-28

TLE7186F

Application Description

11

Application Description

In the automotive sector there are more and more applications requiring high performance motor drives, such as

HVAC fans, engine cooling fans, pumps etc.. In these applications synchronous and asynchronous 3-phase

motors are used, combining high output performance, low space requirements and high reliability.

Figure 15

Application Circuit TLE7186F

This is a simplified example of an application circuit. The function must be verified in the real application.

SH1

4,7mF

µC

GH1

GL1

VS

IL1

___

IH1

10

Ω

GND

ISP

IL2

___

IH2

IL3

___

IH3

GND

VREG

TLE

7186

PGND

PGND

____

ERR

TEMP

ISO

Shunt

____

RGS

____

INHD

ISN

BH1

470nF

SH2

GH2

BH2

470nF

SH3

GH3

BH3

470nF

GL2

GL3

L

2,2µH

IFMA

R

1,6k

Ω

L

2,2µH

interface

R

33

Ω

IFuC

DT

VDD

GND

AGND

AGND

SL

1µF

PGND

KL 15

R

2,2k

Ω

___

INH

VDHS

AGND

GND

VDH

2µF

IOV

SCDL

C

1nF

R

1,2k

Ω

R

10k

Ω

R

10k

Ω

U_fb

V_fb

W_fb

100 nF

2µF

+

100nF

2.2nF

For details of the current sense feature

please see the dedicated chapter