L99DZ320 datasheet(34/146 Pages) STMICROELECTRONICS

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Symbol

Parameter

Test condition

Min. Typ. Max. Unit Item

Cin(2)

Internal capacitance

E.043

Cin,diff(2)

Differential internal

capacitance

E.044

1. Voltage range is taken from ISO CD 16845-2 (high speed medium access unit - conformance test plan).

2. Parameter specified by design, not tested in production.

Note:

CAN normal and low-power mode, biasing active: tested in CAN TRX normal and CAN TRX STDBY (bias on)

state while the device is in active and V1_Standby mode.

Table 32. CAN transceiver delay

Symbol

Parameter

Test condition

Min. Typ. Max. Unit Item

tLOOP,hl

Loop delay TXDC to

RXDC (high to low)

5.5 V < VS < 18 V, RL = 60 Ω ±1%,

CL = 100 pF, CRXDC = 15 pF,

30%VTXDC - 30%VRXDC,

TXDC fall time = 10 ns (90% - 10%)

255

E.045

tLOOP,lh

Loop delay TXDC to

RXDC (low to high)

5.5 V < VS < 18 V, RL = 60 Ω ±1%,

CL = 100 pF, CRXDC = 15 pF,

70%VTXD - 70%VRXD,

TXDC rise time = 10 ns (10% - 90%)

255

E.046

tLOOP150,hl

Loop delay TXDC to

RXDC (high to low)

with 150 Ω bus load

5.5 V < VS < 18 V, RL = 150 Ω,

CL = 100 pF, CRXDC = 15 pF,

30%VTXDC - 30%VRXDC,

TXDC fall time = 10 ns (90% - 10%)

350

E.107

tLOOP150,lh

Loop delay TXDC to

RXDC (low to high)

with 150 Ω bus load

5.5 V < VS < 18 V, RL = 150 Ω,

CL = 100 pF, CRXDC = 15 pF,

70%VTXD - 70%VRXD,

TXDC rise time = 10 ns (10% - 90%)

350

E.108

TBit(RXD) ≤

1 Mb/s(1)

Recessive bit

symmetry at RXDC

5.5 V < VS < 18 V, RL = 60 Ω ±1%,

CL = 100 pF, CRXD = 15 pF,

70%VRXDC (rising) - 30%V(falling),

TXDC rise and fall time = 10 ns

(10% - 90%, 90% - 10%),

Test signal to be applied on the TXDC input of the

implementation is a square wave signal with a

positive duty cycle of 1/6 and a period of six times

the nominal recessive bit width.

Rectangular pulse signal TTXDC = 6000 ns, high

pulse 1000 ns, low pulse 5000 ns

900 1000 1050

E.047

TBit(RXD)_150 Ω ≤

1 Mb/s

RL = 150 Ω, other conditions as TBit(RXD) ≤ 1 Mb/s,

value may be obtained by characterization only.

800

1050

E.109

TBit(RXD) ≤

2 Mb/s

Conditions as TBit(RXD) ≤ 1 Mb/s,

Rectangular pulse signal TTXDC = 3000 ns, high

pulse 500 ns, low pulse 2500 ns

400

500

550

E.110

TBit(RXD)_150 Ω ≤

2 Mb/s

RL = 150 Ω, other conditions as TBit(RXD) ≤ 1 Mb/s,

value may be obtained by characterization only

300

550

E.111

L99DZ320

Electrical specifications

DS14235 - Rev 5

page 34/146

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