SPSB081 datasheet(72/137 Pages) STMICROELECTRONICS

72 / 137 page

Symbol

Parameter

Condition

Min Typ

Max Unit Item

Receiver timing

symmetry (TBit(RXD) -

TBit(BUS))

CRXD = 15 pF

Rectangular pulse signal TTXDC = 1200 ns, high

pulse 200 ns, low pulse 1000 ns

tCAN(2)

CAN permanent

dominant time out

Tested by scan

600 700

900

µs

E.061

tWUP - VCansup

time between WUP

on the CAN bus until

VCansup goes active

Wake-up-pattern wake-up

70% VDIFF - 90% VCansup(min)

200

µs

E.062

tWUP - RXD

time between WUP

(3) on the CAN bus

until RXD is active

(i.e. the CAN signal

is represented at the

RXD output)

Wake-up-pattern wake-up

RXD output enabled

Tested by scan

ms E.063

tVCANSUPlow

Filter time needed to

display CANSUPlow

flag

Tested by scan

µs

E.111

1. TBit(RXD) for the highest supported data rate has to be specified (1 Mb/s, 2 Mb/s or 5 Mb/s).

2. At the expiration of this filter time a flag is set.

3. Time starts with the end of the last dominant phase of the WUP.

Table 49. CAN receiver input resistance

Symbol

Parameter

Condition

Min Typ Max Unit Item

ILeakage,

CANH,105

Input leakage current

CANH

Unpowered device; VCANH = 5 V; VCANL = 5 V

VSREG < VPOR_F(1)

VSREG, VCANSUP(2) connected via 0 Ω to GND

VSREG, VCANSUP(2) connected via 47 kΩ to GND

TJ = -40 °C to 105 °C

-10

µA

E.064

ILeakage,

CANH,130

Unpowered device; VCANH = 5 V; VCANL = 5 V

VSREG < VPOR_F(1)

VSREG, VCANSUP(2) connected via 0 Ω to GND

VSREG, VCANSUP(2)

TJ = 130 °C

-10

µA

E.065

ILeakage,

CANL,105

Input leakage current

CANL

Unpowered device;

VCANH = 5 V; VCANL = 5 V

VSREG < VPOR_F(1)

VSREG, VCANSUP(3)connected via 0 Ω to GND

VSREG, VCANSUP(4)

TJ = -40 °C to 105 °C

-10

µA

E.066

ILeakage,

CANL,130

Unpowered device;

VCANH = 5 V; VCANL = 5 V

VSREG < VPOR_F (1)

VSREG, VCANSUP(3) connected via 0 Ω to GND

VSREG, VCANSUP connected via 47 kΩ to GND(4)

-10

µA

E.067

SPSB081

CAN FD transceiver

DS14048 - Rev 3

page 72/137

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