参数资料
型号: SN65HVD2
厂商: Texas Instruments, Inc.
元件分类: RS-485
英文描述: EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
中文描述: 扩展共模RS - 485收发
文件页数: 3/25页
文件大小: 527K
代理商: SN65HVD2
SLLS552D DECEMBER 2002 REVISED APRIL 2005
www.ti.com
3
DRIVER FUNCTION TABLE
HVD20, HVD21, HVD22
HVD23, HVD24
INPUT
D
ENABLE
DE
OUTPUTS
A
INPUT
D
ENABLE
DE
OUTPUTS
A
B
B
H
H
H
L
H
H
H
L
L
H
L
H
L
H
L
H
X
L
Z
Z
X
L
Z
Z
X
OPEN
Z
Z
X
OPEN
Z
Z
OPEN
H
H
L
OPEN
H
L
H
H = high level, L= low level, X = don’t care, Z = high impedance (off), = indeterminate
RECEIVER FUNCTION TABLE
DIFFERENTIAL INPUT
VID = (VA – VB)
0.2 V
VID
0.2 V < VID < 0.2 V
VID
0.2 V
X
ENABLE
RE
OUTPUT
R
L
H
L
H (see Note A)
L
L
H
Z
X
OPEN
Z
Open circuit
L
H
Short Circuit
L
H
Idle (terminated) bus
H = high level, L= low level, Z = high impedance (off)
NOTE A:
If the differential input VID remains within the transition range for
more than 250
μ
s, the integrated failsafe circuitry detects a bus
fault, and set the receiver output to a high state. See Figure 15.
L
H
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
SN65HVD2X
0.5 V to 7 V
Supply voltage(2), VCC
Voltage at any bus I/O terminal
Voltage input, transient pulse, A and B, (through 100
, see Figure 16)
Voltage input at any D, DE or RE terminal
27 V to 27 V
60 V to 60 V
0.5 V to VCC+ 0.5 V
10 mA to 10 mA
Receiver output current, IO
Human Body Model(3)
A, B, GND
16 kV
Electrostatic discharge
All pins
5 kV
Charged-Device Model(4)
Machine Model(5)
All pins
1.5 kV
All pins
200 V
Continuous total power dissipation
See Power Dissipation Rating Table
150
°
C
Junction temperature, TJ
(1)Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)All voltage values, except differential I/O bus voltages, are with respect to network ground terminal.
(3)Tested in accordance with JEDEC Standard 22, Test Method A114-A.
(4)Tested in accordance with JEDEC Standard 22, Test Method C101.
(5)Tested in accordance with JEDEC Standard 22, Test Method A115-A.
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