AS8220A View Datasheet(PDF) - austriamicrosystems AG

Part Name

Description

Manufacturer

AS8220A

FlexRay Basis Transceiver

austriamicrosystems AG 

AS8220A

Objective Data Sheet - Applications

Contents

1 General Description ............................................................................................................................... 1

2 Key Features ...........................................................................................................................................1

3 Applications ............................................................................................................................................ 1

4 Pin Assignments .................................................................................................................................... 4

4.1 Pin Descriptions ................................................................................................................................................4

5 Absolute Maximum Ratings .................................................................................................................. 5

lid 6 Electrical Characteristics.......................................................................................................................6

7 Typical Operating Characteristics ...................................................................................................... 11

8 Detailed Description ............................................................................................................................. 12

a 8.1 Block Description.............................................................................................................................................12

v 8.2 Events..............................................................................................................................................................12

8.3 Operating Modes.............................................................................................................................................12

ill 8.3.1 NORMAL mode .....................................................................................................................................13

8.3.2 STANDBY mode ...................................................................................................................................13

t 8.4 Non Operating Mode .......................................................................................................................................13

8.4.1 Power Off .............................................................................................................................................13

G s 8.5 Undervoltage Events .......................................................................................................................................13

8.5.1 Undervoltage VIO...................................................................................................................................13

A t 8.5.2 Undervoltage VCC .................................................................................................................................13

s n 8.6 Power On/Off Events.......................................................................................................................................14

8.7 System Description .........................................................................................................................................14

e 8.8 Fail Silent Behavior .........................................................................................................................................15

m t 8.8.1 State transitions due to under voltage detection ...................................................................................15

8.8.2 State transitions due to voltage recovery detection ..............................................................................15

a n 8.9 Mode Transitions .............................................................................................................................................15

o 8.9.1 ERRN Signalling ...................................................................................................................................16

8.10 Loss of ground...............................................................................................................................................16

c 8.11 Error Flags Description ..................................................................................................................................16

l 8.11.1 Bus error .............................................................................................................................................16

8.11.2 Low current on BP high side driver .....................................................................................................16

a 8.11.3 Low current on BP low side driver.......................................................................................................16

8.11.4 Low current on BM high side driver.....................................................................................................16

ic 8.11.5 Low current on BM low side driver ......................................................................................................16

8.11.6 High current on BP high side driver ....................................................................................................16

n 8.11.7 High current on BP low side driver ......................................................................................................16

8.11.8 High current on BM high side driver ....................................................................................................17

h 8.11.9 High current on BM low side driver .....................................................................................................17

8.11.10 BP open line ......................................................................................................................................17

c8.11.11 BM open line .....................................................................................................................................17

8.11.12 BP short circuit to VCC.......................................................................................................................17

e8.11.13 BP short circuit to GND .....................................................................................................................17

T8.11.14 BM short circuit toVCC .......................................................................................................................17

8.11.15 BM short circuit to GND ....................................................................................................................17

8.11.16 Short circuit between BP and BM .....................................................................................................17

8.11.17 Over temperature ..............................................................................................................................17

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