IL3685
PROFIBUS-Compatible Isolated RS-485 Transceivers
Functional Diagrams
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DE
ISODE
D
R
RE
A
B
ISORO
ISORI
IL3685-1
(QSOP)
40 Mbps data rate
3 V to 5 V power supplies
20 ns propagation delay
5 ns pulse skew
50 kV/μs typ.; 30 kV/μs min. common mode transient immunity
44000 year barrier life
15 kV bus ESD protection
Low EMC footprint
Thermal shutdown protection
−40°C
to +85°C temperature range
Meets or exceeds ANSI RS-485 and ISO 8482:1987(E)
PROFIBUS compliant
6 kV
RMS
Reinforced Isolation/ 12.8 kV surge / 1 kV
RMS
WV (V-Series)
VDE V 0884-10 certified; UL 1577 recognized
QSOP, 0.15", or 0.3" 16-pin packages
DE
ISODE
XDE
Applications
•
•
•
•
•
D
R
RE
A
B
PROFIBUS, PROFIBUS DP, and FMS networks
Factory automation
Industrial control networks
Building environmental controls
Equipment covered under IEC 61010-1 Edition 3
Description
IL3685-3
(narrow-body)
IL3685-Series galvanically isolated, high-speed differential bus
transceivers are designed for bidirectional data communication on
balanced transmission lines. The devices use NVE’s patented*
IsoLoop spintronic Giant Magnetoresistance (GMR) technology.
ISODE
DE
The wide-body version provides true 8 mm creepage. Narrow-body
and QSOP packages offer unprecedented miniaturization.
IL3685-Series transceivers are fully PROFIBUS compliant,
including the rigorous PROFIBUS differential output voltage
specifications.
A unique ceramic/polymer composite barrier provides excellent
isolation and virtually unlimited barrier life.
The device is compatible with 3 V as well as 5 V input supplies,
allowing interface to standard microcontrollers without additional
level shifting.
D
R
RE
A
B
IL3685
(wide-body)
V
ID
(A-B)
≥
200 mV
≤−200
mV
≥
1.5 V
≤−1.5
V
X
Open
DE
L
L
H
H
X
L
RE
L
L
L
L
H
L
R
H
L
H
L
Z
H
D
X
X
H
L
X
X
Mode
Receive
Receive
Drive
Drive
Hi-Z R
Receive
Current limiting and thermal shutdown features protect against
output short circuits and bus contention that may cause excessive
power dissipation. Receiver inputs feature a “fail-safe if open”
design, ensuring a logic high R-output if A/B are floating.
IsoLoop
®
is a registered trademark of NVE Corporation.
*U.S. Patent number 5,831,426; 6,300,617 and others.
REV. X
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
YouTube.com/NveCorporation
©NVE Corporation
IL3685
Absolute Maximum Ratings
(11)
Parameter
Storage Temperature
Junction Temperature
Ambient Operating Temperature
Voltage Range at A or B Bus Pins
Supply Voltage
(1)
Digital Input Voltage
Digital Output Voltage
ESD (all bus nodes)
Symbol
T
S
T
J
T
A
V
DD
1
, V
DD
2
Min.
−55
−55
−40
−7
−0.5
−0.5
−0.5
15
Typ.
Max.
150
150
85
12
7
V
DD
+ 0.5
V
DD
+ 1
Units
°C
°C
°C
V
V
V
V
kV
Test Conditions
HBM
Recommended Operating Conditions
Parameter
Supply Voltage
Junction Temperature
High-Level Digital Input Voltage
Low-Level Digital Input Voltage
Differential Input Voltage
(2)
High-Level Output Current (Driver)
High-Level Digital Output Current
(Receiver)
Low-Level Output Current (Driver)
Low-Level Digital Output Current
(Receiver)
Ambient Operating Temperature
Digital Input Signal Rise and Fall Times
Symbol
V
DD
1
V
DD
2
T
J
V
IH
V
IL
V
ID
I
OH
I
OH
I
OL
I
OL
T
A
t
IR
, t
IF
−60
−8
−40
85
DC Stable
Min.
3.0
4.5
−40
2.4
3.0
0
Typ.
Max.
5.5
5.5
110
V
DD
1
0.8
+12 /
−7
60
8
Units
V
°C
V
V
V
mA
mA
mA
mA
°C
Data Rate = 40 Mbps;
R
L
= 54
Ω
V
DD
1
= 3.3 V
V
DD
1
= 5.0 V
Test Conditions
Insulation Specifications
Parameter
IL3685-1E
IL3685-3E
IL3685E
Total Barrier Thickness (internal)
Barrier Resistance
Barrier Capacitance
Leakage Current
Comparative Tracking Index
High Voltage Endurance
AC
(Maximum Barrier Voltage
for Indefinite Life)
DC
Surge Immunity (“V” Version)
Creepage Distance
(external)
Barrier Life
Symbol
Min.
3.2
4.0
8.03
0.013
Typ.
8.3
0.016
>10
14
7
0.2
Max.
Units
mm
Per IEC 60601
mm
Ω
pF
μA
RMS
V
RMS
V
RMS
V
DC
kV
PK
44000
Years
500 V
f = 1 MHz
240 V
RMS
, 60 Hz
Per IEC 60112
At maximum
operating temperature
Per IEC 61000-4-5
100°C, 1000 V
RMS
, 60%
CL activation energy
Test Conditions
R
IO
C
IO
CTI
V
IO
V
IOSM
≥600
1000
1500
12.8
Thermal Characteristics
Parameter
Junction–Ambient
Thermal Resistance
Junction–Case (Top)
Thermal Resistance
Power Dissipation
QSOP
0.15" SOIC
0.3" SOIC
QSOP
0.15" SOIC
0.3" SOIC
QSOP
0.15" SOIC
0.3" SOIC
Symbol
θ
JA
θ
JT
P
D
Min.
Typ.
63
38
31
35
21
17
Max.
Units
°C/W
°C/W
675
700
800
2
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
(952) 829-9217
www.nve.com
YouTube.com/NveCorporation
©NVE Corporation
Test Conditions
Soldered to double-
sided board;
free air
mW
IL3685
Safety and Approvals
VDE V 0884-10
(VDE V 0884-11 pending)
V-Series (Reinforced Isolation; VDE File Number 5016933-4880-0002)
•
Working Voltage (V
IORM
) 1000 V
RMS
(1415 V
PK
); reinforced insulation; pollution degree 2
•
Isolation voltage (V
ISO
) 6000 V
RMS
•
Surge immunity (V
IOSM
) 12.8 kV
PK
•
Surge rating 8 kV
•
Transient overvoltage (V
IOTM
) 6000 V
PK
•
Each part tested at 2387 V
PK
for 1 second, 5 pC partial discharge limit
•
Samples tested at 6000 V
PK
for 60 sec.; then 2122 V
PK
for 10 sec. with 5 pC partial discharge limit
Standard versions (Basic Isolation; VDE File Number 5016933-4880-0001)
•
Working Voltage (V
IORM
) 600 V
RMS
(848 V
PK
); basic insulation; pollution degree 2
•
Isolation voltage (V
ISO
) 2500 V
RMS
•
Transient overvoltage (V
IOTM
) 4000 V
PK
•
Surge rating 4000 V
•
Each part tested at 1590 V
PK
for 1 second, 5 pC partial discharge limit
•
Samples tested at 4000 V
PK
for 60 sec.; then 1358 V
PK
for 10 sec. with 5 pC partial discharge limit
Safety-Limiting Values
Safety rating ambient temperature
Safety rating power (180°C)
Supply current safety rating (total of supplies)
Symbol
T
S
P
S
I
S
Value
180
270
54
Units
°C
mW
mA
IEC 61010-1
(Edition 2; TUV Certificate Numbers N1502812; N1502812-101)
Reinforced Insulation; Pollution Degree II; Material Group III
Part No. Suffix
-1
-3
None
Package
QSOP
SOIC
True 8™ Wide-body SOIC
Working Voltage
150 V
RMS
150 V
RMS
300 V
RMS
UL 1577
(Component Recognition Program File Number E207481)
V-Series isolation grade
6 kV rating; tested at 7.2 kV
RMS
(10.2 kV
PK
) for 1 second; each lot sample tested at 6 kV
RMS
(8485 V
PK
) for 1 minute
Standard isolation grade
Each part tested at 3000 V
RMS
(4243 V
PK
) for 1 second; each lot sample tested at 2500 V
RMS
(3536 V
PK
) for 1 minute
Soldering Profile
Per JEDEC J-STD-020C, MSL 1
3
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
(952) 829-9217
www.nve.com
YouTube.com/NveCorporation
©NVE Corporation
IL3685
IL3685-1 (QSOP Package) Pin Connections
1
2
3
4
5
6
7, 8
9
10
11
12
13
14
15
16
V
DD1
R
GND
1
RE
DE
D
NC
B
V
DD2X
A
ISORO
ISODE
GND
2
ISORI
V
DD2I
Input power supply.
Output data from bus.
Input power supply ground return.
Read data enable
(if RE is high, R= high impedance).
Drive enable.
Data input to bus.
No internal connection.
Inverting bus line.
Output transceiver power supply
(normally connected to pin 16).
Non-inverting bus line.
Isolated R output (should be externally
connected to pin 15; no other connection
should be made).
Isolated DE output.
Output power supply ground return.
Isolated R input (should be connected to pin
12; no other connection should be made).
Output isolation power supply
(normally connected to pin 10).
V
DD1
R
GND
1
RE
DE
D
NC
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD2
ISORI
GND
2
ISODE
ISORO
A
V
DD2X
B
IL3685-1
IL3685-3 (0.15" Narrow-Body SOIC) Pin Connections
1
2
3
4
5
6
7, 8
9
V
DD1
GND
1
R
RE
D
DE
NC
GND
2X
Input power supply.
Input power supply ground return.
Output data from bus.
Read data enable
(if RE is high, R= high impedance).
Data input to bus.
Drive enable.
No internal connection.
Output transceiver ground return.
(normally connected to pin 15).
Transceiver Device Enable input enables the
transceiver from the bus side, or is
connected to ISODE to enable the trans-
ceiver from the controller-side DE input
(this input should not be left unterminated).
Non-inverting bus line.
Inverting bus line.
Output transceiver power supply
(normally connected to pin 16).
Isolated DE output
(normally connected to pin 10).
Output isolation power supply ground return.
(normally connected to pin 9).
Output isolation power supply
(normally connected to pin 13).
4
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
(952) 829-9217
www.nve.com
YouTube.com/NveCorporation
©NVE Corporation
VDD
1
GND
1
R
RE
D
DE
NC
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDD
2I
GND
2I
ISODE
VDD
2X
B
A
XDE
GND
2X
10
XDE
11
12
13
14
15
16
A
B
V
DD2X
ISODE
GND
2I
V
DD2I
IL3685-3
IL3685
IL3685 (0.3" SOIC Wide-Body SOIC) Pin Connections
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
DD1
GND
1
R
RE
DE
D
NC
GND
1
GND
2
ISODE
NC
A
B
NC
GND
2
V
DD2
Input power supply.
Input power supply ground return
(pin 2 is internally connected to pin 8).
Output data from bus.
Read data enable
(if RE is high, R= high impedance).
Drive enable.
Data input to bus.
No internal connection.
Input power supply ground return
(pin 8 is internally connected to pin 2).
Output power supply ground return
(pin 9 is internally connected to pin 15).
Isolated DE output for use in PROFIBUS
applications where the state of the isolated
drive enable node needs to be monitored.
No internal connection.
Non-inverting bus line.
Inverting bus line.
No internal connection.
Output power supply ground return
(pin 15 is internally connected to pin 9).
Output power supply.
VDD
1
GND
1
R
RE
DE
D
NC
GND
1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDD
2
GND
2
NC
B
A
NC
ISODE
GND
2
IL3685
5
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
(952) 829-9217
www.nve.com
YouTube.com/NveCorporation
©NVE Corporation
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