TLE5010 Datasheet, PDF(48/56 Page) Infineon Technologies AG – GMR Based Angular Sensor

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TLE5010 Datasheet, PDF (48/56 Pages) Infineon Technologies AG – GMR Based Angular Sensor

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TLE5010

Draft

Overvoltage Comparators

12

Overvoltage Comparators

Various comparators monitor the voltage in order to ensure a error free operation.

The overvoltages must be active for at least tDEL to set the test comparator bits in the

SSC Interface registers. This works as digital spike suppression.

Table 19 Test Comparators

Parameter

Symbol Limit Values

Unit Notes

min. typ. max.

Overvoltage

Detection

VOVG -

VOVA -

VOVD -

VDD Overvoltage VDDOV -

GND - Off Voltage VGNDoff -

VDD - Off Voltage VVDDoff -

Spike filter Delay tDEL

-

2.80 -

2.80 -

2.80 -

6.5 -

0.54 -

0.48 -

10 -

V

V

V

V

V

VGND_OFF = VGND - VTST1

V

VVDD_off = VCLK - VDD

or VSCK - VDD

Âµs The error condition has to be

longer than this value

(min. 256 clocks of fDIG)

12.1

Internal Supply Voltage Comparators

Every voltage regulator has an overvoltage comparator to detect a malfunction.

If the nominal output voltage of 2.5 V is larger than VOVG, VOVA and VOVD, then this

overvoltage comparator is activated. It sets the VRx_OV bit.

.

VDDA

REF

-

VDD

VRG

VRA

+

VRD

10Âµs

Spike

Filter

xxx_OV

Figure 17

GND

OV Comparator

GND

12.2

VDD Overvoltage Detection

This comparator (see Figure 17) monitors the external supply voltage at the VDD pin.

It activates the STAT_VR bit.

Preliminary Data Sheet

48

V 0.9, 2007-05

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