Datasheet

ManualsBrandsBROADCOM ManualsOptoelectronics & DisplaysApplication-specific Optocoupler DIP 8 Type (misc.) Insulated Current-Loop, 20 mA

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 O output current levels

• Safety approval

UL Recognized -3750 V rms for 1 minute

CSA Approved

• Optically coupled 20 mA current loop receiver,

HCPL-4200, also available

Applications

• Isolated 20 mA current loop transmitter in:

Computer peripherals

Industrial control equipment

Data communications equipment

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.

Functional Diagram

A 0.1 µF bypass capacitor connected between pins 8 and 5 is recommended.

Description

The HCPL-4100 optocoupler is designed to operate as a

transmitter 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.

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 integrated 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 with-

standing 27 volts. The input integrated circuit provides

a controlled amount of LED drive current and takes into

account any LED light output degradation. The internal

shield allows a guaranteed 1000 V/µs common mode

transient immunity.

HCPL-4100

Optically Coupled 20 mA Current Loop Transmitter

Data Sheet

Lead (Pb) Free

RoHS 6 fully

compliant

RoHS 6 fully compliant options available;

-xxxE denotes a lead-free product

Summary of content (12 pages)

PAGE 1
HCPL-4100 Optically Coupled 20 mA Current Loop Transmitter Data Sheet Lead (Pb) Free RoHS 6 fully compliant RoHS 6 fully compliant options available; -xxxE denotes a lead-free product Description Features The HCPL-4100 optocoupler is designed to operate as a transmitter in equipment using the 20 mA current loop.
PAGE 2
Ordering Information HCPL-4100 is UL Recognized with 3750 Vrms for 1 minute per UL1577. Option Part number RoHS Compliant Non-RoHS Compliant -000E No option -300E #300 -500E #500 HCPL-4100 Package Surface Mount 300 mil DIP-8 Gull Wing Tape & Reel Quantity 50 per tube X X X X 50 per tube X 1000 per reel To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry.
PAGE 3
8-Pin DIP Package with Gull Wing Surface Mount Option 300 (HCPL-4100) LAND PATTERN RECOMMENDATION 9.65 ± 0.25 (0.380 ± 0.010) 6 7 8 1.016 (0.040) 5 6.350 ± 0.25 (0.250 ± 0.010) 1 3 2 10.9 (0.430) 4 2.0 (0.080) 1.27 (0.050) 9.65 ± 0.25 (0.380 ± 0.010) 1.780 (0.070) MAX. 1.19 (0.047) MAX. 7.62 ± 0.25 (0.300 ± 0.010) 3.56 ± 0.13 (0.140 ± 0.005) 1.080 ± 0.320 (0.043 ± 0.013) 0.635 ± 0.25 (0.025 ± 0.010) 0.635 ± 0.130 (0.025 ± 0.005) 2.54 (0.100) BSC DIMENSIONS IN MILLIMETERS (INCHES).
PAGE 4
Recommended Pb-Free IR Profile Regulatory Information tp Tp TEMPERATURE TL Tsmax The HCPL-4100 has been approved by the following organizations: TIME WITHIN 5 °C of ACTUAL PEAK TEMPERATURE 20-40 SEC. 260 +0/-5 °C UL Recognized under UL 1577, Component Recognition Program, File E55361. 217 °C RAMP-UP 3 °C/SEC. MAX. 150 - 200 °C RAMP-DOWN 6 °C/SEC. MAX. Tsmin ts PREHEAT 60 to 180 SEC. 25 tL CSA Approved under CSA Component Acceptance Notice #5, File CA 88324. 60 to 150 SEC.
PAGE 5
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 – VCC .........................................................................................
PAGE 6
Switching Specifications For 0°C ≤ TA ≤ 70°C, 4.5 V ≤ VCC ≤ 20 V, all typicals at TA = 25°C and VCC = 5 V unless otherwise noted. See note 12. Parameter Symbol Min. Typ. Max. Units Test Conditions Fig. Note Propagation Delay Time tPLH 0.3 1.6 µs to Logic High Output Level CO = 1000 pF, CL = 15 pF, IO = 20 mA 5, 6, 7 6 Propagation Delay Time tPHL 0.2 1.
PAGE 7
Notes: 1. Derate linearly above 55°C free air temperature at a rate of 3.8 mW/ °C. Proper application of the derating factors will prevent IC junction temperatures from exceeding 125°C for ambient temperatures up to 85°C. 2. Derate linearly above a free-air temperature of 70°C at a rate of 2.3 mW/ °C. A significant amount of power may be dissipated in the HCPL4100 output circuit during the transition from the SPACE state to the MARK state when driving a data line or capacitive load (COUT ).
PAGE 8
Figure 6. Test Circuit for tPLH, tPHL, tr, and tf. 70 CO = 1000 pF CL = 15 pF VCC = 5 V IO = 20 mA 0.5 tr, tf – RISE AND FALL TIMES – ns tp – PROPAGATION DELAY – µs 0.6 Figure 7. Waveforms for tPLH, tPHL, tr, and tf. 0.4 tPLH 0.3 tPHL 0.2 0.1 0 -40 -20 0 20 40 60 80 100 TA – TEMPERATURE – °C Figure 8. Typical Propagation Delay vs. Temperature. HCPL-4100 fig 7 Figure 10. Test Circuit for Common Mode Transient Immunity.
PAGE 9
Applications Data transfer between equipment which employs current loop circuits can be accomplished via one of three configurations: simplex, half duplex or full duplex communication. With these configurations, point-to-point and multidrop arrangements are possible. The appropriate configuration to use depends upon data rate, number of stations, number and length of lines, direction of data flow, protocol, current source location and voltage compliance value, etc.
PAGE 10
Figure 13. Recommended Non-Isolated Active Receiver with HCPL-4100 Isolated Transmitter for Simplex Point to Point 20 mA Current Loop. 25% distortion data rate at different VCC values. 25% distortion data rate is defined as that rate at which 25% distortion occurs to output bit interval with respect to the input bit interval. Maximum data rate (dotted line) is restricted by device characteristics.
PAGE 11
As Figure 16 illustrates, the combination of Avago current loop optocouplers, HCPL-4100 transmitter and HCPL-4200 receiver, can be used at the isolated end of current loops. Cross talk and common mode coupling are greatly reduced when optical isolation is implemented at the same end of both loops, as shown. Full duplex data rate is limited by the non-isolated active transmitter current loop. Comments mentioned under simplex configuration apply to the full duplex case.
PAGE 12
Figure 17. Half Duplex Current Loop System Configurations for (a) Point to Point, (b) Multidrop. For product information and a complete list of distributors, please go to our website: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries. Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved.