SPSB081 datasheet(69/135 Pages) STMICROELECTRONICS

69 / 135 page

Note:

CAN low power mode, biasing inactive: Tested in CAN TRX STDBY (bias off) state while the device is in active

mode, V1_standby mode and Vbat_standby mode.

Table 47. CAN receiver input resistance

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Item

Rdiff

Differential internal

resistance

VTXDC = VTXDCHIGH; no load

Rdiff = RCANH + RCANL

-2,0 V ≤ VCANH ≤ +7,0 V;

-2,0 V ≤ VCANL ≤ +7,0 V (1)

100

kΩ

E.044

RCANH, CANL

Single ended

internal resistance

VTXDC = VTXDCHIGH; no load

-2,0 V ≤ VCANH ≤ +7,0 V;

-2,0 V ≤ VCANL ≤ +7,0 V(1)

kΩ

E.045

Internal

Resistance

matching

RCANH,CANL

Biasing active; VTXDC =

VTXDCHIGH; no load; mR = 2 x

(RCAN_H - RCAN_L) / (RCAN_H

+ RCAN_L)

10k resistor between CANH-

CANL pin with external 5 V

-0.03

0.03

E.046

1. Voltage Range is taken from ISO CD 16845-2 (High-speed medium access unit - Conformance test plan).

Note:

CAN normal and low power mode, biasing active: Tested in TRX normal and CAN TRX STDBY (bias on) state

while the device is in active and V1_standby mode.

Table 48. CAN transceiver delay

Symbol

Parameter

Condition

Min Typ

Max Unit Item

tLOOP,hl

Loop delay TXDC to

RXDC (high to low)

5.5 V < VSREG < 18 V;

RL=60 Ω ±1%;

CL = 100pF;

30% VTXDC – 30% VRXDC;

TXDC fall time = 10ns (90% - 10%); CRXDC=15 pF

255

E.047

tLOOP,lh

Loop delay TXDC to

RXDC (low to high)

5.5 V < VSREG < 18 V;

RL=60 Ω ±1%;

CL = 100 pF;

70% VTXD – 70% VRXD ;

TXDC rise time = 10 ns (10% - 90%); CRXDC=15

255

E.048

tLOOP150,hl

Loop delay TXDC to

RXDC (high to low)

with 150Ω bus load

5.5 V < VSREG < 18 V;

RL=150 Ω;

CL = 100 pF;

30% VTXDC – 30% VRXDC;

TXDC fall time = 10ns (90% - 10%); CRXDC=15 pF

350

E.049

tLOOP150,lh

Loop delay TXDC to

RXDC (low to high)

with 150Ω bus load

5.5 V < VSREG < 18 V;

RL=150 Ω;

CL = 100 pF;

70% VTXD – 70% VRXD ;

350

E.050

SPSB081

CAN FD transceiver

DS14048 - Rev 1

page 69/135

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