Optically Coupled 20 mA
Current Loop Transmitter
Technical Data
HCPL-4100
Features
• Guaranteed 20 mA Loop
Parameters
• Data Input Compatible with
LSTTL, TTL and CMOS
Logic
• Guaranteed Performance
over Temperature (0
°
C to
70
°
C)
• Internal Shield for High
Common Mode Rejection
• 20 kBaud Data Rate at 400
Metres Line Length
• Guaranteed On and Off
Output Current Levels
• Safety Approval
UL Recognized -2500 V rms for
1 minute
CSA Approved
• Optically Coupled 20 mA
Current Loop Receiver,
HCPL-4200, Also Available
Description
The HCPL-4100 optocoupler is
designed to operate as a transmit-
ter in equipment using the 20 mA
current loop. 20 mA current loop
systems conventionally signal a
logic high state by transmitting
20 mA of loop current (MARK),
and signal a logic low state by
allowing no more than a few
milliamperes of loop current
(SPACE). Optical coupling of the
signal from the logic input to the
20 mA current loop breaks
ground loops and provides very
high immunity to common mode
interference.
Functional Diagram
The HCPL-4100 data input is
compatible with LSTTL, TTL, or
CMOS logic gates. The input
integrated circuit drives a GaAsP
LED. The light emitted by the
LED is sensed by a second inte-
grated circuit that allows 20 mA
to pass with a voltage drop of less
than 2.7 volts when no light is
emitted and allows less than 2 mA
to pass when light is emitted. The
transmitter output is capable of
withstanding 27 volts. The input
integrated circuit provides a
controlled amount of LED drive
current and takes into account
any LED light output degrada-
tion. The internal shield allows a
guaranteed 1000 V/µs common
mode transient immunity.
Applications
• Isolated 20 mA Current
Loop Transmitter in:
Computer Peripherals
Industrial Control Equipment
Data Communications
Equipment
A 0.1
µF
bypass capacitor connected between pins 8 and 5 is recommended.
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to
prevent damage and/or degradation which may be induced by ESD.
2
Ordering Information
Specify part number followed by Option Number (if desired).
HCPL-4100# XXX
300 = Gull Wing Surface Mount Lead Option
500 = Tape/Reel Package Option (1 K min)
Option data sheets available. Contact your Agilent sales representative or authorized distributor for
information.
Package Outline Drawings
8-Pin DIP Package (HCPL-4100)
9.65 ± 0.25
(0.380 ± 0.010)
8
7
A XXXX
YYWW RU
1
1.19 (0.047) MAX.
2
3
4
UL
RECOGNITION
6
5
7.62 ± 0.25
(0.300 ± 0.010)
6.35 ± 0.25
(0.250 ± 0.010)
TYPE NUMBER
DATE CODE
1.78 (0.070) MAX.
+ 0.076
0.254 - 0.051
+ 0.003)
(0.010 - 0.002)
5° TYP.
4.70 (0.185) MAX.
0.51 (0.020) MIN.
2.92 (0.115) MIN.
1.080 ± 0.320
(0.043 ± 0.013)
0.65 (0.025) MAX.
2.54 ± 0.25
(0.100 ± 0.010)
DIMENSIONS IN MILLIMETERS AND (INCHES).
3
8-Pin DIP Package with Gull Wing Surface Mount Option 300 (HCPL-4100)
PAD LOCATION (FOR REFERENCE ONLY)
9.65 ± 0.25
(0.380 ± 0.010)
8
7
6
5
1.016 (0.040)
1.194 (0.047)
4.826 TYP.
(0.190)
6.350 ± 0.25
(0.250 ± 0.010)
9.398 (0.370)
9.906 (0.390)
1
2
3
4
1.194 (0.047)
1.778 (0.070)
1.780
(0.070)
MAX.
9.65 ± 0.25
(0.380 ± 0.010)
7.62 ± 0.25
(0.300 ± 0.010)
0.381 (0.015)
0.635 (0.025)
1.19
(0.047)
MAX.
4.19 MAX.
(0.165)
+ 0.076
0.254 - 0.051
+ 0.003)
(0.010 - 0.002)
1.080 ± 0.320
(0.043 ± 0.013)
0.635 ± 0.130
2.54
(0.025 ± 0.005)
(0.100)
BSC
DIMENSIONS IN MILLIMETERS (INCHES).
LEAD COPLANARITY = 0.10 mm (0.004 INCHES).
0.635 ± 0.25
(0.025 ± 0.010)
12° NOM.
Thermal Profile (Option #300)
260
240
220
200
180
160
140
120
100
80
60
40
20
0
0
∆T
= 145°C, 1°C/SEC
∆T
= 115°C, 0.3°C/SEC
TEMPERATURE – °C
∆T
= 100°C, 1.5°C/SEC
1
2
3
4
5
6
7
8
9
10
11
12
TIME – MINUTES
Figure 1. Maximum Solder Reflow Thermal Profile.
(Note: Use of non-chlorine activated fluxes is recommended.)
4
Regulatory Information
The HCPL-4100 has been
approved by the following
organizations:
UL
Recognized under UL 1577,
Component Recognition
Program, File E55361.
CSA
Approved under CSA Component
Acceptance Notice #5, File CA
88324.
Insulation and Safety Related Specifications
Parameter
Min. External Air Gap
(External Clearance)
Min. External Tracking Path
(External Creepage)
Min. Internal Plastic Gap
(Internal Clearance)
Symbol
L(IO1)
L(IO2)
Value Units
7.1
7.4
0.08
mm
mm
mm
Conditions
Measured from input terminals to output
terminals, shortest distance through air
Measured from input terminals to output
terminals, shortest distance path along body
Through insulation distance, conductor to
conductor, usually the direct distance
between the photoemitter and photodetector
inside the optocoupler cavity
DIN IEC 112/VDE 0303 PART 1
Material Group (DIN VDE 0110, 1/89, Table 1)
Tracking Resistance
(Comparative Tracking Index)
Isolation Group
CTI
200
IIIa
Volts
Option 300 – surface mount classification is Class A in accordance with CECC 00802.
Absolute Maximum Ratings
(No Derating Required up to 55°C)
Storage Temperature .................................................. -55°C to +125°C
Operating Temperature ................................................. -40°C to +85°C
Lead Solder Temperature .... 260°C for 10 s (1.6 mm below seating plane)
Supply Voltage – V
CC
.............................................................. 0 V to 20 V
Average Output Current - I
O
........................................ -30 mA to 30 mA
Peak Output Current - I
O
........................................... Internally Limited
Output Voltage – V
O
........................................................ -0.4 V to 27 V
Input Voltage – V
I
............................................................ -0.5 V to 20 V
Input Power Dissipation – P
I
................................................. 265 mW
[1]
Output Power Dissipation – P
O
............................................. 125 mW
[2]
Total Power Dissipation – P .................................................. 360 mW
[3]
Infrared and Vapor Phase Reflow Temperature
(Option #300) .......................................... see Fig. 1, Thermal Profile
5
Recommended Operating Conditions
Parameter
Power Supply Voltage
Input Voltage Low
Input Voltage High
Operating Temperature
Output Voltage
Output Current
Symbol
V
CC
V
IL
V
IH
T
A
V
O
I
O
Min.
4.5
0
2.0
0
0
0
Max.
20
0.8
20
70
27
24
Units
Volts
Volts
Volts
°C
Volts
mA
DC Electrical Specifications
For 0°C
≤
T
A
≤
70°C, 4.5 V
≤
V
CC
≤
20 V, all typicals at T
A
= 25°C and V
CC
= 5 V unless otherwise noted.
See note 12.
Parameter
Mark State Output
Current
Mark State Short
Circuit Output
Current
Space State Input
Current
Low Level Input
Current
Low Level Input
Voltage
High Level Input
Voltage
High Level Input
Current
Supply Current
Symbol
V
MO
Min.
Typ.
1.8
2.2
2.35
85
Max. Units
Test Conditions
2.25 Volts I
O
= 2 mA
V
I
= 2.0 V
Volts I
O
= 12 mA
2.7 Volts I
O
= 20 mA
mA V
I
= 2 V, V
O
= 5 V to 27 V
Fig. Note
2, 3
I
SC
30
4
I
SO
I
IL
V
IL
V
IH
I
IH
0.5
1.1
2.0
mA
mA
Volts
Volts
V
I
= 0.8 V, V
O
= 27 V
V
CC
= 20 V, V
I
= 0.4 V
4
-0.12 -0.32
0.8
2.0
20
100
250
11.5
13
I
CC
0.005
7.0
7.8
µA
µA
µA
mA
mA
V
I
= 2.7 V
V
I
= 5.5 V
V
I
= 20 V
V
CC
= 5.5 V 0 V
≤
V
I
≤
20 V
V
CC
= 20 V
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