L99DZ320 datasheet(32/146 Pages) STMICROELECTRONICS

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Symbol

Parameter

Test condition

Min. Typ. Max. Unit Item

VDIFF,dom_ext

Differential output voltage in

dominant state on extended

bus load range:

VCANHdom-VCANLdom

VTXDC = VTXDCLOW,

RL = from 45 Ω to 70 Ω

1.4

3.3

E.100

VDIFF,domVsLow

Differential output voltage in

dominant state: VCANHdom-

VCANLdom at low VS

VTXDC = VTXDCLOW,

RL = from 50 Ω to 65 Ω,

5 V < VS < 5.5 V (1)

1.35

E.101

VDIFF,dom_ext_VsLow

Differential output voltage in

dominant state:

VCANHdom-VCANLdom

with 45 Ω to70 Ω load at low

VTXDC = VTXDCLOW,

RL = from 45 Ω to 70 Ω,

5 V < VS < 5.5 V (1)

1.25

3.3

E.102

VSYM

Driver symmetry

VSYM = (VCANH + VCANL)/

VCANSUP

VCANSUP = 5 V (2)

RL = 60 Ω ± 1%,

fTXDC = 1 MHz,(3)

CSPLIT = 4.7 nF (±5%)

0.9

1.1

E.020

IOCANH,dom (-3V)

CANH output current in

dominant state

VTXDC = VTXDCLOW,

VCANH = from -3 V to 18 V

-115

115

mA E.021

IOCANL,dom (18V)

CANL output current in

dominant state

VTXDC = VTXDCLOW, VCANL = from - 3 V

to18 V

-115

115

mA E.022

IOCANH,dom (40V)

CANH output current in

dominant state

VTXDC = VTXDCLOW,

VCANH = 40 V, VS = 40 V

mA E.023

IOCANL,dom (40V)

CANL output current in

dominant state

VTXDC = VTXDCLOW, VCANL = 40 V,

VS = 40 V

115

mA E.024

1. VS at device pin after reverse battery protection, while application is supplied with 6 V. Operating condition has to be

adapted, if a higher voltage drop occurs in the application.

2. If it is an external pin, it should be supplied externally.

3. Measurement equipment input load < 20 pF, > 1 MΩ, guaranteed by E.017, E.018, E.021, E.022, E.045, E.046

measurements.

Table 28. CAN transmitter recessive output characteristics, CAN normal mode

Symbol

Parameter

Test condition

Min. Typ. Max. Unit Item

VCANHrec

CANH voltage level in recessive state (normal mode)

VTXDC = VTXDCHIGH,

no load

2.5

E.025

VCANLrec

CANL voltage level in recessive state (normal mode)

VTXDC = VTXDCHIGH,

no load

2.5

E.026

VDIFF,recOUT

Differential output voltage in recessive state (normal

mode):

VCANHrec-VCANLrec

VTXDC = VTXDCHIGH,

no load

-50

mV E.027

Note:

CAN normal mode: tested in TRX ready state while the device is in active mode.

L99DZ320

Electrical specifications

DS14235 - Rev 5

page 32/146

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