Datasheet

SN65HVD255
SN65HVD256, SN65HVD257
SLLSEA2C –DECEMBER 2011–REVISED SEPTEMBER 2013 www.ti.com
ELECTRICAL CHARACTERISTICS
Over recommended operating conditions, T
A
= –40°C to 125°C (unless otherwise noted). SN65HVD256 device V
RXD
= V
CC
.
PARAMETER TEST CONDITIONS / COMMENT MIN TYP
(1)
MAX UNIT
4.0 SUPPLY CHARACTERISTICS
Normal Mode See Figure 10, TXD = 0 V, R
L
= 50
4.1 60 85
(Driving Dominant) Ω, C
L
= open, R
CM
= open, S = 0V
Normal Mode
See Figure 10, TXD = 0 V, S = 0V,
(Driving
4.2 CANH = -12V, R
L
= open, C
L
= 130 180
Dominant – bus
open, R
CM
= open
fault)
See Figure 10, TXD = 0 V, R
L
=
Normal Mode open (no load), C
L
= open, R
CM
=
4.3 I
CC
5-V Supply current 10 20 mA
(Driving Dominant) open,
S = 0V
See Figure 10, TXD = V
CC
, R
L
= 50
Normal Mode
4.4 Ω, C
L
= open, R
CM
= open, 10 20
(Recessive)
S = 0V
See Figure 10, TXD = V
CC
, R
L
= 50
4.5 Silent Mode Ω,C
L
= open, R
CM
= open, 2.5 5
S = V
CC
RXD Supply
current
4.6 I
RXD
All modes RXD Floating, TXD = 0V 500 µA
(SN65HVD256
only)
Undervoltage detection on V
CC
for
4.7 UV
VCC
3.5 4.45 V
protected mode
4.8 V
HYS(UVVCC)
Hysteresis voltage on UV
VCC
200 mV
Undervoltage detection on V
RXD
for
4.9 UV
RXD
1.3 2.75 V
protected mode (SN65HVD256 only)
Hysteresis voltage on UV
RXD
4.10 V
HYS(UVRXD)
80 mV
(SN65HVD256 only)
5.0 S PIN (MODE SELECT INPUT)
5.1 V
IH
HIGH-level input voltage 2 V
5.2 V
IL
LOW-level input voltage 0.8 V
5.3 I
IH
HIGH-level input leakage current S = V
CC
= 5.5 V 7 100 µA
5.4 I
IL
Low-level input leakage current S = 0 V, V
CC
= 5.5 V –1 0 1 µA
5.5 I
LKG(OFF)
Unpowered leakage current S = 5.5 V, V
CC
= 0 V, V
RXD
= 0 V 7 35 100 µA
6.0 TXD PIN (CAN TRANSMIT DATA INPUT)
6.1 V
IH
HIGH level input voltage 2 V
6.2 V
IL
LOW level input voltage 0.8 V
6.3 I
IH
HIGH level input leakage current TXD = V
CC
= 5.5 V –2.5 0 1 µA
6.4 I
IL
Low level input leakage current TXD = 0 V, V
CC
= 5.5 V –100 -25 –7 µA
6.5 I
LKG(OFF)
Unpowered leakage current TXD = 5.5 V, V
CC
= 0 V, V
RXD
= 0 V –1 0 1 µA
6.6 C
I
Input Capacitance 3.5 pF
7.0 RXD Pin (CAN RECEIVE DATA OUTPUT)
See Figure 11, I
O
= –2 mA. For
7.1 V
OH
HIGH level output voltage devices with V
RXD
supply V
OH
= 0.8 0.8×V
CC
V
× V
RXD
7.2 V
OL
LOW level output voltage See Figure 11, I
O
= 2 mA 0.4 V
7.3 I
LKG(OFF)
Unpowered leakage current RXD = 5.5 V, V
CC
= 0 V, V
RXD
= 0 V –1 0 1 µA
7.4 t
R
Output signal rise time See Receiver Rise Time
7.5 t
F
Output signal fall time See Receiver Fall Time
(1) All typical values are at 25°C and supply voltages of V
CC
= 5 V and V
RXD
= 5 V, R
L
= 60 Ω.
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