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AS8222 Datasheet(PDF) 15 Page - ams AG

Part # AS8222
Description  Enhanced FlexRay Standard Transceiver
PDF  43 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS8222 Datasheet(HTML) 15 Page - ams AG

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AS8222
Datasheet - Electrical Character i s t ics
www.ams.com/eng/FlexRay/AS8222
Revision 1.0
14 - 42
6.6 Supply Voltage Monitor
tBWUIdle
dWUIdleDetect
Idle or Data_1 detection time in remote
wake-up pattern
Acceptance timeout for detection of a
Idle phase in wake-up pattern
-10V<(VBP, VBM)<15V
1
1
24
4
µs
µs
tBWUDetect
dWUTimeout
Total remote wake-up detection time
Acceptance timeout for wake-up
pattern recognition
-10V<(VBP, VBM)<15V
48
48
75
140
140
µs
µs
VBWU0
Remote wake-up detector threshold
-10V<(VBP, VBM)<15V
-300
-250
-150
mV
VLWUTH
Wake-up detection threshold
2
2.8
4
V
ILWUL
Low level input current on WAKE pin VBAT=12V; VLWAKE=2V for t<tLWUFilter
-20
-10
-5
µA
ILWUH
High level input current on WAKE pin VBAT=12V; VLWAKE=4V for t<tLWUFilter
510
20
µA
tLWUFilter
dWakePulseFilter
Local wake filter time
Wake pulse filter time (spike rejection)
1
1
20
40
500
µs
µs
Table 8. Supply Voltage Monitor
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VBATTHH
VBAT undervoltage recovery threshold
3.5
4
4.5
V
VBATTHL
uUVBAT
VBAT undervoltage detection threshold
Undervoltage detection threshold
2.5
2
33.5
5.5
V
V
VCCTHH
VCC undervoltage recovery threshold
3.5
4
4.5
V
VCCTHL
uUVCC
VCC undervoltage detection threshold
Undervoltage detection threshold
2.5
2
33.5
V
V
VIOTHH
VIO undervoltage recovery threshold
1.25
1.6
2.0
V
VIOTHL
uUVIO
VIO undervoltage detection threshold
Undervoltage detection threshold
0.75
0.75
1.1
1.5
V
V
tUV_DETECT
dUVBAT, dUVCC,
dUVIO
Undervoltage detection time
Undervoltage reaction time
100
300
700
1000
ms
ms
tUV_REC
Undervoltage recovery time
0.7
2
5
ms
Table 7. Wake-up Detector
Symbol
Parameter
Conditions
Min
Typ
Max
Units



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