TLE4997 datasheet(23/36 Pages) INFINEON

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TLE4997I

Signal Processing

Data Sheet

V 1.0, 2007-06

6.6

Clamping

The clamping function is useful for splitting the output voltage into the operating range

and error ranges. If the magnetic field is outside the selected measurement range, the

output voltage

Vout is limited to the clamping values.

The clamping values are calculated by:

Clamping low voltage:

Clamping high voltage:

Note: For an exact setup, the register value may be re-adjusted due to the actual output

voltage in the clamping condition. The output voltage range itself has electrical

limits. See the Electrical Characteristics of Vout.

Table 12

Clamping

Parameter

Symbol Limit Values

Unit

Notes

min.

max.

CL,CH

2 x 12

bit

Clamping voltage low

VCLL

100

VDD

1) If clamping is set, it must be within the allowed output voltage range to be effective.

Clamping voltage high

VCLH

100

VDD

Clamping quantization

steps

∆V

CLQ

1.22

VDD = 5 V

Clamping voltage drift

∆V

-0.5

0.5

VDD In lifetime

2) Valid in the range (5% of V

DD) < VOUT < (95% of VDD)

-0.5

0.5

Over temperature2)

CLL

4096

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

CLH

4096

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

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