L99PM62GXP datasheet(60/102 Pages) STMICROELECTRONICS

60 / 102 page

Electrical specifications

L99PM62GXP

60/102

Doc ID 17639 Rev 4

Table 33.

LIN transceiver timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

tRXpd

Receiver propagation delay

time

tRXpd =max (tRXpdr, tRXpdf);

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

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

VS =12V; CRXD =20pF;

Rbus, = 1 kΩ, Cbus = 1 nF;

Rbus = 660 Ω, Cbus = 6.8 nF;

Rbus = 500 Ω, Cbus = 10 nF

6µs

tRXpd_sym

Symmetry of receiver

propagation delay time

(rising vs. falling edge)

tRXpd_sym =tRXpdr - tRXpdf;

VS =12V;

Rbus =1 kΩ, Cbus =1 nF

-2

µs

Duty cycle 1

THRec(max) = 0.744*VS;

THDom(max) = 0.581*VS;

VS = 7 V to 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

Duty cycle 2

THRec(min) = 0.284*VS;

THDom(min) = 0.422*VS;

VS = 7.6 to 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

Duty cycle 3

THRec(max) = 0.778*VS;

THDom(max) = 0.616*VS;

VS = 7 V to 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

Duty cycle 4

THRec(min) = 0.251*VS;

THDom(min) = 0.389*VS;

VS = 7.6 V to 18 V, tbit = 96 µs;

D4 = tbus_rec(max)/(2xtbit);

Rbus =1 kΩ, Cbus =1 nF;

Rbus = 660 Ω, Cbus =6.8 nF;

Rbus = 500 Ω, Cbus =10 nF

0.590

tdom(TXDL) TXDL dominant time-out

tLIN

LIN permanent recessive

time-out

µs

tdom(BUS)

LIN bus permanent

dominant time-out

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