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SN65HVD72 データシート(Datasheet) 4 Page - Texas Instruments

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部品番号. SN65HVD72
部品情報  3.3V-Supply RS-485 with IEC ESD Protection
ダウンロード  25 Pages
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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SN65HVD72
SN65HVD75
SN65HVD78
SLLSE11B – MARCH 2012 – REVISED JUNE 2012
www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating range (unless otherwise specified)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RL = 60 Ω, 375 Ω on each output to
See
1.5
2
V
-7 V to 12 V
Figure 1
Driver differential output voltage
|VOD|
RL = 54 Ω (RS-485)
1.5
2
V
magnitude
RL = 100 Ω (RS-422) TJ ≥ 0°C,
2
2.5
V
VCC ≥ 3.2V
Change in magnitude of driver
Δ|VOD|
RL = 54 Ω, CL = 50 pF
–50
0
50
mV
differential output voltage
See
Steady-state common-mode output
Figure 2
VOC(SS)
1
VCC/2
3
V
voltage
Change in differential driver output
ΔVOC
Center of two 27-
Ω load resistors
–50
0
50
mV
common-mode voltage
Peak-to-peak driver common-mode
VOC(PP)
200
mV
output voltage
COD
Differential output capacitance
15
pF
Positive-going receiver differential
VIT+
See (1)
–70
–20
mV
input voltage threshold
Negative-going receiver differential
VIT–
–200
–150
See (1)
mV
input voltage threshold
Receiver differential input voltage
VHYS
50
80
mV
threshold hysteresis (VIT+ – VIT–)
VOH
Receiver high-level output voltage
IOH = –8 mA
2.4
VCC–0.3
V
VOL
Receiver low-level output voltage
IOL = 8 mA
0.2
0.4
V
Driver input, driver enable, and
II
–2
2
µA
receiver enable input current
Receiver output high-impedance
IOZ
VO = 0 V or VCC, RE at VCC
–1
1
µA
current
IOS
Driver short-circuit output current
–160
160
mA
VI = 12 V
75
150
µA
HVD72, 75
VI = –7 V
–100
–40
µA
VCC = 3 to 3.6 V or
II
Bus input current (disabled driver)
VCC = 0 V, DE at 0 V
VI = 12 V
240
333
µA
HVD78
VI = –7 V
–267
–180
µA
Driver and Receiver
DE=VCC, RE=GND, No
750
950
µA
enabled
load
Driver enabled,
DE=VCC, RE=VCC, No
300
500
µA
receiver disabled
load
ICC
Supply current (quiescent)
Driver disabled,
DE=GND, RE=GND, No
600
800
µA
receiver enabled
load
Driver and receiver
DE=GND, D=open
0.1
2
µA
disabled
RE=VCC, No load
Supply current (dynamic)
See the TYPICAL CHARACTERISTICS section
(1)
Under any specific conditions, VIT+ is assured to be at least VHYS higher than VIT-.
4
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Copyright © 2012, Texas Instruments Incorporated
Product Folder Link(s): SN65HVD72 SN65HVD75 SN65HVD78




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