ETC IL712-2

ISOLOOP®
IL711/712
NVE CORPORATION
Dual Digital Isolator
Features
1IN
2IN
GALVANIC ISOLATION
Functional Diagram
1OUT
2OUT
IL711
2OUT
Applications
GALVANIC ISOLATION
1IN
· +5V and +3.3V CMOS Compatible
· 2 ns Typical Pulse Width Distortion
· 10 ns Typical Propagation Delay
· High Speed: 100 MBaud
· 2 ns Channel to Channel Skew
· 30 kV/µs Typical Transient Immunity
· 2500VRMS Isolation (1 min)
· 8-pin PDIP and 8-pin SOIC Packages
· UL1577 Approved (File # E207481)
· IEC 61010-1 Approved (Report # 607057)
1OUT
2IN
IL712
Ordering Information
Package Type
8–PDIP 8–SOIC
IL711
-2
-3
IL712
-2
-3
IL711-2 is 8–PDIP package
IL712-3 is an 8–SOIC package
· Isolated Data Transmission
· Isolated ADCs and DACs
· Fieldbus Isolation
· High Speed Digital Systems
· Computer Peripheral Interfaces
· Logic Level Shifting
Description
The IL711 and IL712 offer the user a level of true logic integration
in an isolation product not previously available. The high speed
digital isolators are configured as dual unidirectional in the IL711,
and as a bi-directional pair in the IL712. Both devices are integrated
with patented* ISOLOOP® technology giving them an excellent
transient immunity specification. The symmetric magnetic coupling
barrier gives these devices a propagation delay of only 10ns and a
pulse width distortion of 2 ns.
Model
Isoloop® is a registered trademark of NVE Corporation
Both the IL711 and the IL712 have 100Mbaud data rates which are
independent of direction, i.e. the IL712 operates in full duplex mode
making it ideal for many fieldbus bus applications. PROFIBUS /
RS485 configurations are achieved by combinations of IL710 and
the IL711 or IL712, either combination meeting the overall
propagation delay requirements of the specification. Available in 8pin PDIP and 8-pin SOIC packages, the IL711 and IL712 are
specified over the temperature range of
-40°C to +100°C without any derating in performance.
* US Patent number 5,831,426; 6,300,617 and others
1
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
ISOLOOP®
IL711/712
Absolute Maximum Ratings
Parameters
Storage Temperature
Symbol
TS
Ambient Operating Temperature(1)
Min.
-55
Max.
175
Units
o
C
o
TA
-55
125
VDD1,VDD2
-0.5
7
Volts
Input Voltage
VI
-0.5
VDD1+0.5
Volts
Input Voltage
VOE
-0.5
VDD2+0.5
Volts
Output Voltage
VO
-0.5
VDD2+0.5
Volts
Drive Channel Output Current
IO
10
mAmps
Supply Voltage
Lead Solder Temperature(10s)
ESD
C
o
260
2kV Human Body Model
C
Recommended Operating Conditions
Parameters
Ambient Operating Temperature
Supply Voltage
Symbol
TA
Min.
-40
VDD1,VDD2
3.0
5.5
Volts
VIH
2.4
VDD1
Volts
VIL
0
0.8
Volts
1
µsec
Logic High Input Voltage
Logic Low Input Voltage
Input Signal Rise and Fall Times
Max.
100
tIR,tIF
Units
o
C
Insulation Specifications
Parameter
Barrier Impedance
Condition
Min.
Typ.
>1014 ||3
Max.
7.036 (PDIP)
4.026 (SOIC)
Creepage Distance (External)
240 VRMS
Leakage Current
Units
Ω || pF
mm
µAmps
0.2
60Hz
Package Characteristics
Parameter
Capacitance (Input-Output)(5)
Thermal Resistance
Symbol
CI-O
Min.
Typ.
2
θJCT
θJCT
(PDIP)
(SOIC)
Package Power Dissipation
Max.
Units
pF
o
150
240
C/W
C/W
o
PPD
150
Test Conditions
f= 1MHz
Thermocouple located at
center underside of package
mW
IEC61010-1
TUV Certificate Numbers:
B 01 07 44230 001 (PDIP)
B 01 07 44230 002 (SOIC)
Classification as Table 1.
Model
IL710-2, IL711-2
IL710-3, IL711-3
Pollution
Degree
II
II
Material
Group
III
III
Max Working
Voltage
300 VRMS
150 VRMS
Package Type
8–PDIP
8–SOIC
'
'
UL 1577
Component Recognition program. File # E207481
Rated 2500Vrms for 1min.
2
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
ISOLOOP®
IL711/712
Electrical Specifications
Electrical Specifications are Tmin to Tmax unless otherwise stated.
Parameter
Symbol
3.3 Volt Specifiations
DC Specifications
Min.
IL711
Input Quiescent Supply Current
IDD1
IL712
Output Quiescent Supply Current IL711
IL712
Logic Input Current
IDD
Logic High Output Voltage
VOH
Logic Low Output Voltage
VOL
2
II
Typ.
9
Max.
14
2.2
2.2
3.3
3.3
2.2
3.3
10
-10
VDD-0.1 VDD
0.8*VDD VDD-0.5
0
0.5
Switching Specifications
Maximum Data Rate
100
PW
5Volt Specifications
Min.
Max.
20
µA
3
4
5
5
mA
mA
3
5
10
mA
µA
-10
VDD-0.1
VDD
0.8*VDD VDD-0.5
0.1
0.8
110
0
0.5
100
10
Units
Typ.
12
Test Conditions
V
IO =-20 µA, VI =VIH
I = -4 mA, V =V
V
IO = 20 µA, VI =VIL
I = 4 mA, V =V
O
0.1
0.8
110
O
MBd
10
I
I
IH
IL
CL = 15 pF
Pulse Width
Propagation Delay
Input to Output (High to Low)
ns
tPHL
12
18
10
15
ns
CL = 15 pF
Propagation Delay
Input to Output ( Low to High)
tPLH
12
18
10
15
ns
CL = 15 pF
(2)
Pulse Width Distortion
| tPHL- tPLH |
PWD
2
3
2
3
ns
CL = 15 pF
Propagation Delay Skew(3)
tPSK
4
6
4
6
ns
CL = 15 pF
Output Rise Time (10-90%)
tR
2
4
1
3
ns
CL = 15 pF
Output Fall Time (10-90%)
tF
2
4
1
3
ns
CL = 15 pF
kV/µs
Vcm =300V
ns
CL = 15 pF
Transient Immunity (Output Logic
High or Logic Low)(4)
Channel to Channel Skew
|CMH|
|CML|
TCSK
20
30
20
2
3
30
2
3
Timing Diagram
50%
VIN
tPLH
tPHL
90%
90%
50%
VO
10%
tPW
10%
tF
tR
Legend
tPLH
tPHL
tPW
tR
tF
Propagation Delay, Low to High
Propagation Delay, High to Low
Minimum Pulse Width
Rise Time
Fall Time
3
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
ISOLOOP®
IL711/712
Notes:
Application Notes:
1. Absolute Maximum ambient operating temperature means
the device will not be damaged if operated under these
conditions. It does not guarantee performance.
2. PWD is defined as | tPHL– tPLH |. %PWD is equal to the
PWD divided by the pulse width.
3. tPSK is equal to the magnitude of the worst case difference in
tPHL and/or tPLH that will be seen between units at 25OC.
4. CMH is the maximum common mode voltage slew rate that
can be sustained while maintaining VO > 0.8 VDD. CML is
the maximum common mode input voltage that can be
sustained while maintaining VO < 0.8 V. The common
mode voltage slew rates apply to both rising and falling
common mode voltage edges.
5. Device is considered a two terminal device:
pins 1–4 shorted and pins 5–8 shorted.
Power Consumption
Isoloop devices achieve their low power consumption
from the manner by which they transmit data across the
isolation barrier. By detecting the edge transitions of the
input logic signal and converting these to narrow current
pulses a magnetic field is created around the GMR
Wheatstone bridge. Depending on the direction of the
magnetic field, the bridge causes the output comparator to
switch following the input logic signal. Since the current
pulses are narrow, about 2.5ns wide, the power
consumption is independent of mark-to-space ratio and
solely dependent on frequency. This has obvious
advantages over optocouplers whose power consumption is
heavily dependent on its on-state and frequency.
The approximate power supply current per channel for
Isoloop® is: I(input)= 40 . f . 1 mA
fmax
4
where
f= operating frequency
fmax= 50 MHz
Power Supplies
Because the IL711 and IL712 operate internally by using
narrow current pulses, it is recommended that low ESR
ceramic capacitors be used to decouple the supplies. 47nF
capacitors should be placed as close to the device as
possible between VDD1 and GND1 as well as between
VDD2 and GND2.
Signal Status on Start-up and Shut Down
To minimize power dissipation, the input signals to the
IL711 and IL712 are differentiated and then latched on the
output side of the isolation barrier to reconstruct the signal.
This could result in an ambiguous output state depending
on power up, shutdown and power loss sequencing.
Therefore, the designer should consider the inclusion of an
initialization signal in his start–up circuit.
Electrostatic Discharge Sensitivity
This product has been tested for electrostatic sensitivity to
the limits stated in the specifications. However, NVE
recommends that all integrated circuits be handled with
appropriate care to avoid damage. Damage caused by
inappropriate handling or storage could range from
performance degradation to complete failure.
4
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
ISOLOOP®
IL711/712
IR Soldering Profile
250
PRE HEATING RATE 3ºC + 1ºC /-0.5ºC /SEC.
REFLOW HEATING RATE 2.5º C ± 0.5ºC /SEC.
PEAK TEMPERATURE 245º C
PEAK TEMPERATURE 240° C
PEAK TEMPERATURE 230ºC
200º C
2.5ºC ±0.5ºC / SEC
TEMPERATURE (º C )
200
160ºC
150ºC
140ºC
30 SEC
3ºC+1ºC /-0.5ºC
SOLDERING TIME
200ºC
30 SEC
50 SEC
100
PRE HEATING TIME
150ºC, 90 ±30 SEC.
TIGHT
TYPICAL
ROOM
TEMPERATURE
LOOSE
0
0
50
100
150
200
250
TIME (SECONDS)
Pin Connections
1
2
3
4
5
6
7
8
VDD1
1IN
2IN
GND1
GND2
2OUT
1OUT
VDD2
Input Power Supply
Channel 1 Logic Input Signal
Channel 2 Logic Input Signal
Input Power Supply Ground
Output Power Supply Ground
Channel 2 Logic Output Signal
Channel 1 Logic Output Signal
Output Power Supply
1
2
3
4
5
6
7
8
VDD1
1IN
2OUT
GND1
GND2
2IN
1OUT
VDD2
Input Power Supply
Channel 1 Logic Input Signal
Channel 2 Logic Output Signal
Input Power Supply Ground
Output Power Supply Ground
Channel 2 Logic Input Signal
Channel 1 Logic Output Signal
Output Power Supply
VDD1 1
8
VDD2
1IN 2
7
1OUT
6
2OUT
GND1 4
5
GND2
VDD1 1
8
VDD2
1IN 2
7
1OUT
6
2IN
5
GND2
2IN 3
2OUT 3
GND1 4
IL711
IL712
5
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
ISOLOOP®
IL711/712
IL711-2 and IL712-2 (8-Pin PDIP Package)
0.240 (6.096)
Dimensions: inches (mm)
min
max
0.260 (6.604)
1
3
2
0.370 (9.398)
0.400 (10.160)
0.290 (7.366)
0.55 (1.397)
0.310 (7.874)
0.65 (1.651)
0.120 (3.048)
0.150 (3.810)
0.008 (0.203)
0.015 (0.381)
0.015 (0.381)
0.030 (0.762)
0.045 (1.143)
0.015 (0.380)
0.023 (0.584)
0.035 (0.889)
0.090 (2.286)
0.300 (7.620)
0.110 (2.794)
0.370 (9.398)
3°
8°
0.045 (1.143)
0.065 (1.651)
IL711-3 and IL712-3 (Small Outline SOIC-8 package)
0.189 (4.80)
0°
0.197
8°
(5.00)
0.016 (0.40)
0.050 (1.27)
0.150 (3.80)
0.157 (4.00)
0.228 (5.80)
0.244 (6.20)
0.010 (0.25)
0.020 (0.50)
x45°
1
2
3
0.008 (0.19)
0.013 (0.33)
0.010 (0.25)
0.020 (0.51)
0.054 (1.37)
Dimensions: inches (mm)
min
max
0.069 (1.75)
0.004 (0.10)
0.040 (1.016)
0.010 (0.25)
0.060 (1.524)
6
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
ISOLOOP®
IL711/712
Applications
Isolated PROFIBUS / RS-485
+VISO
+VDD1
RTSAS
IL711
DE
GALVANIC ISOLATION
D
VCC
RS-485 Truth Table
D
DE A B
1
0
Z Z
0
0
Z Z
1
1
1 0
0
1
0 1
D
RT
DE
R
X
X
1
0
A
RE
GND1
GALVANIC ISOLATION
R
R
B
RE
GND
IL710
65ALS176 (-40°C to +85°C)
75ALS176 (0°C to +70°C)
GNDISO
VDD1 and VISO should be decoupled with a 10nF capacitor
at the IL710 supply pins and a 47 nF capacitor at the IL711.
Isolated DeviceNet / CAN Transceiver
+VDD1
+VISO
TXD
RXD
GND1
GALVANIC ISOLATION
TXD
0
1
IL712
TXD
CANH CANL
high
low
floating floating
BUS
dominant
recessive
RS
CANH
VREF
CANL
RXD
0
1
GND
VCC
PCA82C251
RXD
GNDISO
VDD1 and VISO should be decoupled with 47nF capacitors
at the IL712 supply pins.
7
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com