Infineon TLI4970 Mounting instructions

How to

–

Scope

The fol

sensors

Interf

The co

during

Serial

This ch

(SICI).

this, th

The tra

a bit. T

interfac

large b

Com

A micr

(startin

•

The ini

T". An

Program T

uick

owing inst

can be pro

ce:

municatio

he progra

al La

nspectio

pter gives

This interf

OCD pin

smission i

ese bits fo

e bit-synch

undaries).

unication

controller

with MS

Send a sin

o0 is

o1 is

ial pulse le

xample o

LI4970 –

rog

Instr

uctions de

rammed.

n with the

ming com

and Con

an overvie

ce is avail

s used.

based on

m a 16bit

onous (an

Timing

eeds to pe

le low/hig

sent as a s

sent as a l

gth (T1/T

a 1 bit tra

uick Instru

ctio

cribe the s

ensor is pe

ands a vo

figuratio

about the

ble and fu

ransmittin

ommand

thus robu

form the f

PWM tra

ort low an

ng low an

) and the

smission c

ction Guid

LI49

quence of

formed by

tage of 20.

Interfac

Serial Ins

ctional in

a single b

ord, simil

t) and very

llowing st

smission,

long high

short high

verall peri

n be seen i

V1.1

ommands

the one wi

V has to b

(SICI)

ection and

arallel wit

t to the sen

r to the SP

flexible in

ps 16 time

ith at least

PWM puls

d T deter

below:

how the T

e SICI int

provided

onfigurati

the SPI in

or and im

interface.

timing (wi

to send/re

30/70 (or

(e.g. 2us

(e.g. 6us

ines the re

I4970 curr

rface. In A

at the CS p

on Interfac

erface mo

ediately r

his makes

hin some q

ceive 16 bi

0/30) duty

ow, 6us hi

ow, 2us hi

-out time

Page 1

dition,

e. For

ceiving

the

ite

cycle:

"Delt

How to

•

By che

PWM t

a 0 or 1

The fig

oscillos

•

OCD Si

Program T

Send a sho

end a bit)

f the sens

ransmitted

f the sens

king the o

ansmissio

is transmit

re below s

cope:

ypical bit

0.4 μs (gi

gnal [V]

MSB …



‚

LI4970 –

t low puls

r transmits

PWM (see

r transmits

tput after t

of a bit "

y the

hows a tra

transmissi

es ~285 k

...

‚

0' from

sor ÆµC

uick Instru

(marks th

a 1, it pull

figure abo

a 0, it does

e rea

-out

elt

-T", fo

ensor. See

smission t

n speed (P

it/s).

one

16 bit are requi



‚1' from

µCÆsensor



ction Guid

end of the

the output

e: 6us-2us

not pull th

time (dete

this case

elow a 1

rough the

M) is: ~0

it frame

red, starting with M



‚1' from

sensor ÆµC

V1.1

transmitte

low for th

= 4 us)

output lo

mined by t

us), the m

it response

CD pin as

.4 μs / ~1.

…



‚0' from

µC Æsen

PWM and

time diffe

e time giv

crocontroll

example fr

could be s

μs, check

…...

syncs the

ence given

n by the p

er can dete

om the TL

en using a

fter ~1.1μ

…

Page 2

ensor to

by the

evious

mine if

4970:

, wait

LSB Æ

How to

•

(

The slo

on the

Please

data. M

EEPR

Data

Seque

Algori

SICI in

AABF

efres

SICI in

8018

ead

Read E

Read c

Please i

pass fil

‘00000

Note:

Every a

(e.g. th

Cont

Bit:

Program T

Slowest bit

(

gives ~5 k

est mode

ICI interfa

ake ca

e to

inimum w

M): 25μs (

ink La

ce of Co

reez

SICI ou

don’t ca

EEPRO

SICI ou

don’t ca

EPROM

PROM re

mmand:

nsert for “r

er cut-off

’. Therewi

ith the 1st

nswer is d

same com

nt:

LI4970 –

transmissi

it/s).

may be use

wait betwe

it time bet

EPROM

mands:

Com

e Algor

Com

e EEPR

egister (

ister requi

gister add

equency, r

h, the actu

ead comm

layed by o

and agai



413

0 r

uick Instru

n (PWM)

ful in disto

en SICI fra

een cycles

ommands

and

thm freeze

and

M refres

ptional)

ed to defi

ess” the re

ad EEPR

l content

nd, the re

e comman

), or the n

211 1

egister ad

ction Guid

s: ~60 μs /

ted enviro

mes to allo

for read/w

ay take lo

Note

Necess

get in c

EEPRO

Note

To be s

applied

e, if any c

ister you l

M register

ill be read

ponse will

(n-1). Eit

xt register

9 8

ress

V1.1

~90 μs, ch

ments and

the sens

ite and tes

nge

ry; stops a

nflict whil

re the corr

anges are

ke to read

0x00. Her

out.

not have th

er, a dum

can be add

7 6

0 0

ck after ~2

or with hig

to decode

command

y other act

program

ct EEPRO

ecessary.

ut. E.g. fo

, bit [13:8]

content o

y comman

essed to r

5 4

0 0

9 μs, wait

h (capaciti

and proce

(except

vities not t

ing the

content

changing

has to set t

this regist

has to be

ad out.

3 2

0 0

Page 3

21 μs

e) loads

s the

he low

end

1 0

0 0

How to

Write

Define

Send th

Again,

The ne

of the l

Provi

Now, t

Attenti

implem

Pro

The ne

Theref

Bit [10:

adequa

Note:

set to “

efres

SICI in

8018

Write

With th

content

Theref

Cont

Bit:

Cont

Bit:

Cont

Bit:

Cont

Bit:

Program T

EPROM

he new co

e write co

he “registe

0x00.

t comman

w pass filt

e Progra

e CS pin (

n: If the se

nted to pr

grammin

t step will

re, followi

8] influenc

e one.

eep the pr

bserve the

ow” when

EEPRO

SICI ou

don’t ca

EPROM

e first com

the regist

re, send th

nt:

LI4970 –

egister

tent of the

mand:

r address”

must be t

(EEPRO

ming Vo

in 5) must

is alre

tect the co

Comman

rogram al

g comma

the time

gramming

IO pin: I

the progra

Com

e EEPR

egister

and, just t

r has to be

write co

413

0 r

413

0 0

413

0 0

413

0 r

uick Instru

as to set t

e data cont

tage

be provide

dy mount

troller for

changes

d has to se

f the inter

oltage lev

will be on

ming is fi

and

M refres

gain

e ‘0’ valu

ritten aga

agai

211 1

egister ad

211 1

0 1

211 1

0 1

211 1

egister ad

ction Guid

e right add

ent of this

x00 influe

with the

d on PCB,

any overv

here the co

al program

l at pin C

“high” du

alized. Aft

Note

To be s

applied

has been

n with the

9 8

ress

9 8

0 0

9 8

0 0

9 8

ress

V1.1

ess, e.g. ‘0

egister, e.g

ce the cut

0.5 V prog

make sure

ltage level

tent has a

ing pulse

;

ing the pro

rwards fu

re the corr

rogramme

final data.

7 6

0 0

7 6

0 1

7 6

0 0

7 6

0 0

0000’ to a

for 18kH

off freque

amming v

ou have a

terwards t

;

typ. this s

ramming

(

ther comm

ct EEPRO

. To progr

5 4

0 0

5 4

0 0

5 4

0 1

5 4

0 0

ddress EE

cut-off fre

cy):

ltage.

ditional h

e value ‘0’

tting is an

(

busy) and

nds can b

content

am also th

3 2

0 0

3 2

0 0

3 2

1 0

3 2

0 0

Page 4

ROM

uency

rdware

ill be

set.

‘1’

1 0

0 1

1 0

1 1

1 0

0 1

How to

Afterw

modify

The sec

Note:

set to “

Turn o

Now, t

turned

Verify

The pr

After e

are rep

strongl

cannot

Bits [1

low, th

every p

comma

even m

Reset

To be s

Best w

Howev

(7FFF

)

Cont

Bit:

Cont

Bit:

Cont

Bit:

Cont

Bit:

Program T

rds, the ne

the low pa

grammin

ond progra

ng comma

bserve the

ow” when

f the Pro

e program

ff.

Program

gramming

ery pulse t

ated as lon

recomme

e guarante

:8] of the r

length of

ogrammin

d descript

ximum of

re the sen

y to do thi

r, also a s

)

nt:

LI4970 –

t comman

s filter cut

Comma

ming co

d has to se

IO pin: I

the progra

rammin

ing proce

ing Qual

f the EEP

e sensor c

as the ma

ded to avo

ed). The n

sponse gi

program

comman

on above,

127, the va

or is worki

is the po

ftware rese

413

0 0

413

0 0

413

0 1

413

1 1

uick Instru

with the

off freque

mand will

will be on

ming is fi

Voltage

s itself is f

ity

OM is ba

ecks auto

gin level i

d the maxi

. of neede

e the no. o

ing pulse s

(bits have

xample is

ue shall be

g proper

-down o

is possibl

211 1

0 1

211 1

0 1

211 1

1 0

211 1

1 1

ction Guid

orrect cont

cy:

write all ‘1

“high” du

alized. Aft

nalized. T

ed on an it

atically th

correct. T

um no. o

iterations

needed pr

all be dec

gray backg

iven for t

increased.

gain after

f VDD.

. Therefor

9 8

0 0

9 8

0 0

9 8

1 1

V1.1

nt has to b

’.

ing the pro

rwards fu

e 20.5 V p

ration pro

margin le

e maximu

pulse itera

an be find

gramming

eased by d

ound in th

e value 4

)

rogrammi

, please se

7 6

0 1

7 6

0 0

7 6

0 0

7 6

1 1

e sent. E.g.

ramming

(

ther comm

ogrammin

ess of pro

el and if n

no. of pu

ions (a su

out

y read

pulses. In

creasing t

& 2

In case th

g; a reset h

d followin

5 4

0 0

5 4

0 1

5 4

0 0

5 4

1 1

like follo

(

busy) and

nds can b

voltage h

ramming p

ecessa

y th

lses is 127.

ficient mar

ing the co

ase this no

e value [1

rogrammi

no. is ver

as to be pe

g comman

3 2

0 0

3 2

1 0

3 2

0 0

3 2

1 1

Page 5

ing to

ill be

set.

s to be

lses.

pulses

It is

in level

tent of

. is very

:8] of

high or

formed.

1 0

1 1

1 0

1 1

1 0

0 0

1 0

1 1

How to

Edition

Publish

Infineon

81726 M

2015 I

All Righ

Legal Di

The info

characte

any infor

warranti

intellect

Informa

For furth

Infineon

Warnin

Due to t

types in

Infineon

written a

cause th

system.

and/or

of the us

Program T

015-08-15

d by

Technologi

unich, Ger

fineon Tec

s Reserved

sclaime

mation give

ristics. With

mation regar

s and liabiliti

al property ri

ion

r informatio

Technologie

chnical requ

uestion, ple

Technologie

proval of In

failure of th

ife support

aintain and

er or other p

LI4970 –

es AG

any

nologies A

in this docu

espect to an

ing the appl

es of any kin

ghts of any t

on technol

Office (ww

irements, co

se contact t

component

ineon Techn

at life-suppo

evices or sy

ustain and/o

rsons may

uick Instru

ent shall in

examples

ication of the

d, including

ird party.

gy, delivery

.infineon.co

ponents m

e nearest In

may be us

logies, if a f

t device or s

tems are int

protect hu

e endanger

ction Guid

no event be

r hints given

device, Infin

ithout limita

erms and co

y contain da

fineon Tech

d in life-sup

ilure of suc

stem or to

ended to be

an life. If the

V1.1

egarded as

herein, any t

eon Technol

ion, warranti

nditions and

gerous sub

ologies Offi

ort devices

component

ffect the saf

mplanted in

fail, it is re

guarantee

pical values

gies hereby

s of non-inf

rices, pleas

tances. For i

r systems o

can reason

ty or effectiv

he human b

sonable to a

f conditions

stated herei

disclaims an

ingement of

contact the

nformation o

ly with the e

bly be expe

ness of that

dy or to sup

sume that t

Page 6

and/or

y and all

nearest

n the

press

ted to

device or

ort

e health

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