TH8055

Single Wire CAN Transceiver

390108055

Page 10 of 15

Rev. 1.1a

Jan 2002

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

2.3

Ω

EMC Inductor voltage drop

0.3

V

Ground offset voltage

0.8

V

Device capacitance (unit load)

198

220

242

pF

Network total capacitance

396

13700

pF

Device resistance (unit load)

9009

9100

9191

Ω

Device resistance (min load)

2000

Ω

Network total resistance

270

4596

Ω

τ

1

4

µs

High speed mode network resistance to GND

100

185

Ω

Timing Diagrams

t

T

V

RxD

V

CANH

V

TxD

30%

70%

t

D

t

DR

50%

50%

t

R

t

F

t

t

t

Figure 2 - Input/Output Timing

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

possible.