AS5403D-HTST datasheet(55/66 Pages) AMSCO

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Page 55

[v1-06] 2015-Aug-28

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AS5403A/D/E − Device Configuration

Protections

When the voltage applied to the VDD pin falls below the

undervoltage lower threshold (VDDUVTL) for longer than the

TVDDUVDET time the device stops the clock of the digital part,

it resets the EEPROM signature calculation and the 3D Hall core

and the output drivers are turned off to reduce the power

consumption. When the voltage applied to the VDD pin exceeds

the VDD undervoltage upper threshold (VDDUVTH) for longer

than the TVDDUVREC time the clock, the signature calculation

and the 3D Hall core are restarted and the output drivers are

turned ON.

Figure 83:

Single Wire Bit Timing

Symbol

Parameter

Min

Typ

Max

Unit

VDDUVTH

VDD Undervoltage Upper Threshold

3.7

4.1

4.5

VDDUVTL

VDD Undervoltage Lower Threshold

3.3

3.7

4.1

TVDDUVDET

VDD Undervoltage Detection Time

250

μs

TVDDUVREC

VDD Undervoltage Recovery Time

250

μs

AS5403D-HTST 数据表(PDF) 55 Page - ams AG

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