TLE4942-2, TLE4942-2C Supplement

TLE4942-2 - TLE4942-2C Data sheet supplement

February 2002

8

Parameter

Symbol

min.

typ.

max.

Unit

Conditions

Jitter during startup

and uncalibrated

mode

(1

σ-value)

± 3

± 4

%

%

-40°C

≤T

amb

≤ 150°C:

150°C

≤T

amb

≤ 170°C:

(1

σ-value)

± 5

± 7

%

%

-40°C

≤T

amb

≤ 150°C

150°C

≤T

amb

≤170°C

(1

σ-value)

± 3

%

see TLE 4942 spec

Magnetic field

amplitude change

necessary for early

startup of the –2

Versions

startup

early

Limit,

B

ˆ

∆

%

X

B

ˆ

?

*

2

>

(X

= 10)

startup

early

Limit,

B

ˆ

∆

0.7

0.7

1.6

+10%

1.76

3.0

+10%

3.3

mT

mT

These magnetic field

changes are necessary

for startup with the

second magnetic edge

Permitted time for

edges to exceed

startup

early

Limit,

B

ˆ

∆

startup

early

slow

Limit,

t

∆

590

ms

necessary for startup

with the second edge

f < 1s

Unlike the TLE4941 magnetic changes exceeding

startup

early

Limit,

B

ˆ

∆

can cause output switching

of the TLE4941-2, even at f significantly lower than 1Hz. Depending on their amplitude edges

slower than

startup

early

slow

Limit,

t

∆

might be detected. If the digital noise constant (

startup

early

Limit,

B

ˆ

∆

)

is not exceeded before a new initial self-calibration is started, the output of the corresponding

edge will be inhibited. This depends on signal amplitude and initial phase.

3

Additional remarks

All additional parameters for TLE4942-2 are guaranteed by design, based on lab

characterisations. For series production additional to the parameters of TLE4942