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TPIC1021

LIN Physical Interface

SLIS113C – OCTOBER 2004 – REVISED JULY 2005

ELECTRICAL CHARACTERISTICS (continued)

V

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

Pull-down resistor

125

350

800

k

Ω

Low-level input current

EN = 0 V

-5

0

5

µA

INH PIN

DC output voltage

Transient voltage

-0.3

V

Ouptut current

-50

2

mA

On state resistance

25

40

100

Ω

drive, Normal or Standby Mode

Leakage current

-5

0

5

µA

NWake PIN

-0.3

V

V

Pull-up current

NWake = 0 V

-40

-10

-4

µA

Leakage current

-5

0

5

µA

THERMAL SHUTDOWN

Shutdown junction thermal tempera-

185

°C

ture

AC CHARACTERISTICS

D1

0.396

See Figure 4

D2

0.581

See Figure 4

D3

0.417

kbps), See Figure 4

D4

0.590

kbps), See Figure 4

Receiver rising propagation delay

6

µs

time

Figure 4

Receiver falling propagation delay

6

µs

time

Figure 4

Symmetry of receiver propagation

wrt falling edge, See Figure 4

-2

2

µs

delay time (rising edge)

NWake filter time for local wake-up

See Figure 4

25

50

100

µs

LIN wake-up filter time (dominant

See Figure 4

25

50

100

µs

time for wake-up via LIN bus)

See Figure 4

6

9

14

ms

(4)

All voltages are defined with respect to ground; positive currents flow into the TPIC1021 device.

(5)

(6)

Duty Cycles: LIN Driver bus load conditions (CLINBUS, RLINBUS): Load1 = 1 nF, 1 k

Ω; Load2 = 6.8 nF, 660 Ω; Load3 = 10 nF, 500 Ω.

Duty Cycles 3 and 4 are defined for 10.4 kbps operation. The TPIC1021 also meets these lower speed requirements, while it is capable

of of the higher speed 20.0 kbps operation as specified by Duty Cycles 1 and 2. SAEJ2602 derives propagation delay equations from

the LIN 2.0 duty cycle definitions, for details please refer to the SAEJ2602 specification.

(7)

Dominant state timeout will limit the minimum data rate to 2.4 kbps.

9