NCV7420

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11

Table 8. DC CHARACTERISTICS – 5 V version

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply current

Normal mode; LIN recessive

1.6

mA

Supply current

Standby mode,

70

mA

Supply current

20

mA

Regulator output voltage

4.9

5.0

5.1

V

4.83

5.0

5.17

Absolute maximum output current

Thermal shutdown must be

taken into account

50

mA

Overcurrent limitation

50

100

170

mA

Line Regulation (Note 28)

0.9

mV

Load Regulation (Note 28)

74

mV

Figure 19 (Notes 27, 28)

13

mV

136

mV

794

mV

LIN TRANSMITTER − Pin LIN

LIN dominant output voltage

1.2

V

LIN dominant output voltage

2.0

V

LIN Recessive Output Voltage (Note 23)

V

Short circuit current limitation

40

200

mA

Internal pull−up resistance

20

33

47

k

W

Capacitance on pin LIN (Note 25)

15

25

pF

LIN RECEIVER − Pin LIN

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Bus voltage for dominant state

0.4

Bus voltage for recessive state

0.6

Receiver threshold

LIN bus recessive

→ dominant

0.4

0.6

Receiver threshold

LIN bus dominant

→ recessive

0.4

0.6

Receiver center voltage

(Vrec_dom + Vrec_rec) / 2

0.475

0.525

Receiver hysteresis

(Vrec_rec − Vrec_dom)

0.05

0.175

LIN output current bus in dominant state

−1

mA

LIN output current bus in recessive state

1

mA

at the switch is negligible. See Figure 1.

24. By one of the trimming bits, following reconfiguration can be done during chip−level testing in order to fit the NCV7420−5 into different

interface: pins TxD and EN will have typ. 10 k

W pull−down resistor to ground and pin WAKE will have typ. 10 mA pull−up current source.

25. Guaranteed by design. Not tested.

28. Values based on design and characterization. Not tested in production.