SN65HVD256D datasheet(9/21 Pages) TI1

Part #	SN65HVD256D

Description	CAN Transceiver with Fast Loop Times for Highly Loaded Networks

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Manufacturer	TI1 [Texas Instruments]

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SN65HVD255

SN65HVD256

www.ti.com

SLLSEA2

– DECEMBER 2011

ELECTRICAL CHARACTERISTICS (continued)

Over recommended operating conditions, TA = –40°C to 125°C (unless otherwise noted). SN65HVD256 device VRXD = VCC.

PARAMETER

TEST CONDITIONS / COMMENT

MIN

TYP(1)

MAX UNIT

8.0

DEVICE SWITCHING CHARACTERISTICS

Total loop delay, driver input (TXD) to

8.1

tPROP(LOOP1) receiver output (RXD), recessive to

150

dominant

See Figure 7, S = 0 V, RL = 60Ω,

ns

CL = 100pF, CL_RXD = 15pF

Total loop delay, driver input (TXD) to

8.2

tPROP(LOOP2) receiver output (RXD), dominant to

150

recessive

Mode change time, from Normal to Silent

8.3

IMODE

See Figure 6

20

µS

or from Silent to Normal

9.0

DRIVER ELECTRICAL CHARACTERISTICS

9.1

CANH

See Figure 2 and Figure 4, TXD = 0

2.75

4.5

Bus output voltage

VO(D)

V, S = 0 V, RL = 60Ω, CL = open,

V

(dominant

9.2

CANL

0.5

2.25

RCM = open

See Figure 2 and Figure 4, TXD =

9.3

VO(R)

Bus output voltage (recessive)

VCC, VRXD = VCC, S = VCC or 0 V

(2),

2

0.5

×VCC

3

V

RL = open (no load), RCM = open

See Figure 2 and Figure 4, TXD = 0

V, S = 0 V, 45

Ω ≤ RL ≤ 65Ω, CL =

9.4

1.5

3

open, RCM = 330Ω, –2 V ≤ VCM ≤ 7

V, 4.75 V

≤ VCC ≤ 5.25 V

VOD(D)

Differential output voltage (dominant)

V

See Figure 2 and Figure 4, TXD = 0

V, S = 0 V, 45

Ω ≤ RL ≤ 65Ω, CL =

9.5

1.25

3.2

open, RCM = 330Ω, –2 V ≤ VCM ≤ 7

V, 4.5V

≤ VCC ≤ 5.5 V

See Figure 2 and Figure 4, TXD =

9.6

VCC, S = 0 V, RL = 60Ω, CL = open,

–0.12

0.012

RCM = open

VOD(R)

Differential output voltage (recessive)

V

See Figure 2 and Figure 4, TXD =

VCC, S = 0 V, RL = open (no load),

9.7

–0.100

0.050

CL = open, RCM = open, –40°C ≤ TA

≤ 85°C

Output symmetry (dominant or

See Figure 2 and Figure 4, S at 0 V,

recessive)

9.8

VSYM

–0.4

0.4

V

RL = 60Ω, CL = open, RCM = open

(VCC – VO(CANH) – VO(CANL))

See Figure 2 and Figure 9, VCANH =

9.9

–160

0 V, CANL = open, TXD = 0V

Short-circuit steady-state output current,

IOS(SS)_DOM

mA

Dominant

See Figure 2 and Figure 9, VCANL =

9.10

160

32 V, CANH = open, TXD = 0V

See Figure 2 and Figure 9,

–20 V ≤

Short-circuit steady-state output current,

VBUS ≤ 32 V, Where VBUS = CANH =

9.11

IOS(SS)_REC

–8

8

mA

Recessive

CANL, TXD = VCC, Normal and

Silent Modes

9.12

CO

Ouatput capacitance

See receiver input capacitance

10.0

DRIVER SWITCHING CHARACTERISTICS

Propagation delay time,HIGH TXD to

10.1

tpHR

50

70

Driver Recessive

Propagation delay time,LOW TXD to

10.2

tpLD

40

70

See Figure 4, S = 0 V, RL = 60Ω,

Driver Dominant

ns

CL = 100pF, RCM = open

10.3

tsk(p)

Pulse skew (|tpHR - tpLD|)

10

10.4

tR

Differential output signal rise time

10

30

10.5

tF

Differential output signal fall time

17

30

(2)

For the bus output voltage (recessive) will be the same if the device is in normal mode with S pin LOW or if the device is in silent mode

with the S pin is HIGH.

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