TLE7184F

Application Description

Data Sheet

32

Rev. 1.0, 2008-12-04

10

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 3 phase motors, synchronous and

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

Figure 13

Application Circuit TLE7184F

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

SH1

V

BAT

C

BR

4,7mF

µC

GH1

GL1

VS

IL1

___

IH1

C

VS

100 nF

R

VS

10

Ω

GND

ISP

IL2

___

IH2

IL3

___

IH3

GND

VREG

TLE

7184

PGND

PGND

____

ERR

TEMP

ISO

Shunt

R

S

R

S

R

fb1

____

RGS

____

INHD

ISN

BH1

C

BS1

470nF

R

GH1

SH2

GH2

BH2

R

GH2

C

BS2

470nF

SH3

GH3

BH3

R

GH3

C

BS3

470nF

R

GL1

GL2

R

GL2

GL3

R

GL3

AGND

L

2,2µH

IFMA

R

1,6k

Ω

L

2,2µH

interface

R

33

Ω

IFuC

DT

VDD

GND

AGND

AGND

R

DT

C

TP

SL

C

BR

1µF

PGND

KL 15

R

2,2k

Ω

___

INH

VDHS

R

fb3

AGND

GND

VDH

C

REG

2µF

R

VDH

+

IOV

SCDL

R

fb2

R

1,2k

Ω

R

10k

Ω

T

LS2

T

LS3

T

LS1

T

HS2

T

HS3

T

HS1

R

SC1

R

SC2

C

VDD1

100nF

R

OV1

R

OV2

R

VDH1

R

VDH2

R

10k

Ω

C

VDD2

2.2nF

C

VS

2µF