SPSB081 datasheet(75/137 Pages) STMICROELECTRONICS

75 / 137 page

Symbol

Parameter

Condition

Min

Typ

Max

Unit Item

RLINup

LIN output pulls up

resistor

VLIN = 0 V

kΩ

E.094

CLIN(1)

LIN input capacitance

E.095

1. Guaranteed by design.

Table 54. LIN transceiver timing

Symbol

Parameter

Condition

Min

Typ Max Unit Item

tRXpd

Receiver propagation delay time

tRXpd = max (tRXpdr, tRXpdf)

tRXpdf = t(0.5 VRXD) - t(0.45 VLIN)

tRXpdr = t(0.5 VRXD) - t(0.55 VLIN)

VSREG = 12 V, CRXD = 20 pF

Rbus = 1k Ω, Cbus = 1 nF

Rbus = 660 Ω, Cbus = 6.8 nF

Rbus = 500 Ω, Cbus = 10 nF

μs

E.096

tRXpd_sym

Symmetry of receiver propagation delay

time (rising vs. falling edge)

tRXpd_sym = tRXpdr - tRXpdf

VSREG = 12 V

Rbus = 1 kΩ, Cbus = 1 nF

CRXD = 20 pF

-2

μs

E.097

Duty cycle 1

THRec(max) = 0.744 * VSREG

THDom(max) = 0.581 * VSREG

VSREG = 7…18 V, tbit= 50 μs

D1 = tbus_rec(min)/(2xtbit)

Rbus = 1 kΩ, Cbus = 1 nF

Rbus = 660 Ω, Cbus = 6.8 nF

Rbus = 500 Ω, Cbus = 10 nF

0.396

E.098

Duty cycle 2

THRec(min) = 0.422 * VSREG

THDom(min) = 0.284 * VSREG

VSREG = 7.6…18 V, tbit = 50 μs

D2 = tbus_rec(max)/(2xtbit)

Rbus = 1 kΩ, Cbus = 1 nF

Rbus = 660 Ω, Cbus = 6.8 nF

Rbus = 500 Ω, Cbus = 10 nF

0.581

E.099

Duty cycle 3

THRec(max) = 0.778 * VSREG

THDom(max) = 0.616 * VSREG

VSREG=7…18 V, tbit = 96 μs

D3 = tbus_rec(min)/(2xtbit)

Rbus = 1 kΩ, Cbus = 1 nF

Rbus = 660 Ω, Cbus = 6.8 nF

Rbus = 500 Ω, Cbus = 10 nF

0.417

E.100

Duty cycle 4

THRec(min) = 0.389 * VSREG

THDom(min) = 0.251 * VSREG

0.590

E.101

SPSB081

LIN transceiver (only for SPSB0815 and SPSB0813)

DS14048 - Rev 3

page 75/137

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