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PDF IL3285 Data sheet ( Hoja de datos )
| Número de pieza | IL3285 | |
| Descripción | (IL3222 / IL3285) Fractional Load RS485 and RS422 Transceivers | |
| Fabricantes | NVE | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de IL3285 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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IL3285 IL3222
Fractional Load RS485 and RS422 Transceivers
Functional Diagram
Features
• 3.3 V Input Supply Compatible
• 2500 VRMS Isolation (1 min)
• 40 ns Propagation Delay
• 5 ns Pulse Skew
• 20 kV/µs Transient Immunity
• Thermal Shutdown Protection
• -40°C to +85°C Temperature Range
• 16 Pin SOIC Package
• UL1577 Approval Pending
• IEC 61010-1 Approval Pending
• +15 kV ESD Protection
Applications
• High Node Count Networks
• Security Networks
• Building Environmental Controls
• Industrial Control Networks
• Gaming Systems
• Factory Automation
DataSheet4U.com
Description
DataShee
Truth Table.
VID (A-B)
= 200 mV
DE RE
LL
= -200 mV
LL
-7<VID<12
= 1.5 V
XH
HL
= -1.5 V
HL
R
H
L
Z
H
L
D Mode
C Receive
X Receive
X Receive/Drive
H Drive
L Drive
Selection Table.
Model Half / Full
Duplex
IL3285
half
IL3222
full
No. of devices
allowed on bus
256
256
Data Rate
Mb/s
1
1
Fail-safe
yes
yes
The IL3000 series are galvanically isolated, differential bus
transceivers designed for bidirectional data communication on
balanced transmission lines. Isolation is achieved through
patented* Isoloop® technology. The IL3285 and IL3222 offer
an exceptional 2.3 V differential output into a 54 Ω load,
which allows better data integrity over longer cable lengths.
These devices are also compatible with 3.3 V input supplies,
allowing interface to standard microcontrollers without the
need for additional level-shifting components.
The IL3000 series have current limiting and thermal shutdown
features to protect against output short circuits and bus
contention situations which may cause excessive power
dissipation. The receivers also incorporate a “sail-safe if
open” design which ensures a logic high on R if the bus lines
are disconnected or “floating”.
Isoloop® is a registered trademark of NVE Corporation.
DataShee*ItSU4B.US-D..cPSao-0tem0n1t-nILu6m1b2e-rA5,,8Ja3n1u,4a2ry6;260,,320000,6517 and others.
NVE Corp., 11409 Valley View Road, Eden Prairie, MN 55344-3617, U.S.A.
Telephone: 952-829-9217, Fax 952-829-9189, www.isoloop.com
© 2005 NVE Corporation
1 page  
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IL3285 IL3222
Receiver Section
Electrical Specifications are Tmin to Tmax unless otherwise stated.
Parameters
Symbol
Min.
Positive-going Input Threshold
Voltage
VIT+
Negative-going Input Threshold
Voltage
VIT- –0.2
Hysteresis Voltage (Vit+ - Vit-)
VHYS
High Level Digital Output Voltage
VOH VDD – 0.2
Typ.
70
VDD
Max.
0.2
Low Level Digital Output Voltage
VOL
0.2
High-impedance-state output current
Line Input Current(8)
Input Resistance
Supply Current (VDD2 = +5V)
Supply Current (VDD1 = +5V)
Supply Current (VDD1 = +3.3V)
Parameters
Maximum Data Rate
Propagation Delay(9)
IOZ
II
rI 96
IDD2
4
IDD1
2
IDD1 1.4
Switching Characteristics @ 5 V
Symbol
Min.
Typ.
1
tPD 100
1
1
-0.8
7
3
2
Max.
165
et4U.com
Pulse Skew(10)
Skew Limit(3)
Output Enable Time To High Level
Output Enable Time To Low Level
Output Disable Time From High Level
Output Disable Time From Low Level
Parameters
Maximum Data Rate
Propagation Delay(9)
tSK(P)
4 16
tSK(LIM)
8
tPZH DataSheet4U.com15
tPZL 15
tPHZ 15
tPLZ 15
Switching Characteristics @ 3.3 V
Symbol
Min.
Typ.
5
tPD 105
32
60
60
60
60
Max.
170
Pulse Skew(10)
tSK(P)
4 16
Skew Limit(3)
Output Enable Time To High Level
Output Enable Time To Low Level
Output Disable Time From High Level
Output Disable Time From Low Level
tSK(LIM)
tPZH
tPZL
tPHZ
tPLZ
8 16
17 27
17 27
17 27
17 27
Units
V
V
mV
V
V
µA
mA
kΩ
mA
mA
mA
Units
Mbps
ns
ns
ns
ns
ns
ns
ns
Units
Mbps
ns
ns
ns
ns
ns
ns
ns
Test Conditions
-7 V < VCM < 12 V
-7 V < VCM < 12 V
VCM =0V, T=25°C
VID = 200 mV
IOH = -20 mA
VID = -200 mV
IOL = 20mA
0.4 ≤ VO ≤ (VDD2 - 0.5) V
VI = 12 V
VI = -7 V
Test Conditions
RL = 54 Ω, CL = 50 pF
-1.5 ≤ VO ≤ 1.5 V,
CL = 15 pF
-1.5 ≤ VO ≤ 1.5 V,
CL = 15 pF
RL = 54 Ω, CL = 50 pF
CL = 15 pF
CL = 15 pF
CL = 15 pF
CL = 15 pF
DataShee
Test Conditions
RL = 54 Ω, CL = 50 pF
-1.5 ≤ VO ≤ 1.5 V,
CL = 15 pF
-1.5 ≤ VO ≤ 1.5 V,
CL = 15 pF
RL = 54 Ω, CL = 50 pF
CL = 15 pF
CL = 15 pF
CL = 15 pF
CL = 15 pF
DataSheet4U.com
5
NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax (952) 829-9189 Internet: www.isoloop.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet IL3285.PDF ] | |
Hoja de datos destacado
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