TH8055 Просмотр технического описания (PDF) - Melexis Microelectronic Systems

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TH8055

Single Wire CAN Transceiver

Melexis Microelectronic Systems  

TH8055

Single Wire CAN Transceiver

3.5 Bus loading requirements

Parameter

Symbol

Min

Typ

Max

Unit

Number of system nodes

2

32

Network distance between any two ECU nodes

Bus length

60

m

Node Series Inductor Resistance (if required)

Rind

2.3

Ohm

EMC Inductor voltage drop

Vind

0.3

V

Ground Offset Voltage

Vgoff

0.8

V

Device Capacitance (unit load)

Cul

198

220

242

pF

Network Total Capacitance

Ctl

396

13700

pF

Device Resistance (unit load)

Rul

9009

9100

9191

Ohm

Device Resistance (min load)

Rmin

2000

Ohm

Network Total Resistance

Rtl

270

4596

Ohm

Network Time Constant[1]

τ

1

Network Time Constant in high speed mode

τ

4

µs

1.5

µs

High Speed Mode Network Resistance to GND

Rload

100

185

Ohm

[1] The network time constant incorporates the bus wiring capacitance. The minimum value is selected to limit radiated

emission. The maximum value is selected to ensure proper communication modes. Not all combinations of R and C are

possible.

TH8055 - Datasheet

3901008055

Page 11 of 20

May 2004

Rev 005

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