Hutton Close, Crowther Ind Est, Washington, Tyne & Wear NE38 0AH, England mailto:sales@isocom.uk.com - Tel: +44 (0)191 4166546 - Fax: +44 (0)191 4155055 ICPL3700 AC/DC to Logic Interface Optocoupler Circuit Features Description Absolute Maximum Ratings Recommended Operating Conditions Electrical Characteristics Switching Characteristics Similar Optocouplers Home Page Circuit Features AC or DC Input Logic Compatible Output Thresholds Guaranteed over Temperature Hysteresis Programmable Sense Voltage 3000 Vdc Withstand Test Voltage Description The ICPL3700 is a voltage/current threshold detection optocoupler. This optocoupler uses an internal light emitting diode, a threshold sensing input buffer IC, and a high gain photon detector to provide an optocoupler which permits adjustable external threshold levels. The input buffer circuit has a nominal turn-on threshold of 2.5 mA (Ith+) and 3.8 V (Vth+). The addition of one or more external attenuation resistors permits the use of this device over a wide range of input voltages and currents. Threshold sensing prior to the LED and detector elements minimises effects of different optical gain and LED variations over operating life (CTR degradation). Hysteresis is also provided in the buffer for extra noise immunity and switching stability. Surface Mount Option Available. Absolute Maximum Ratings Storage Temperature: Operating Temperature: Lead Soldering: -55C to +125C -25C to +85C 260C for 10s, 1.6mm below seating plane Input Average Current IIN: Surge Current IIN: Peak Transient Current IIN: Input Voltage VIN(Pins 2-3): PowerDissipation: Derate Linearly: 50mA (note 1) 140mA (note 1,2) 500mA (note 1,2) -0.5V 230mW(note 3) 4.1mW/C above 70C free-air Output Detector Average Current IO: 30mA Derate Linearly: 0.6mW/C above 70C free-air Output Voltage VO(Pins 6-5): -0.5to 20V Supply Voltage VCC(Pins 8-5): -0.5V to 20V PowerDissipation: 210mW (note 4) Derate Linearly: 3.9mW/C above 70C free-air Package Power Dissipation: 305mW (derate linearly 5.4mW/C above 70C free-air) Recommended Operating Conditions PARAMETER SYMBOL MIN MAX Supply Voltage VCC UNIT 4.5 18 V Operating Temperature TA 0 70 C Operating Frequency 0 4 kHz (note 5) f Electrical Characteristics (Over recommended temperature Ta= 0C to 70C u.o.s.; all typical values at Vcc=5V, Ta=25C u.o.s.) SYMBOL PARAMETER ITH+ Input Threshold Current ITHVTH+ CONDITIONS MIN TYP MAX UNIT NOTES VCC=4.5V, VIN=VTH+, VO=0.4V, IO>=4.2mA 1.96 2.5 3.11 mA VCC=4.5V, VIN=VTH-, VO=2.4V, IOH<=0.1mA 1.00 1.3 1.62 mA VCC=4.5V, VIN=V2-V3, Pins 1 & 4 Open, VO=0.4V, 3.35 3.8 4.05 V 9 Input Threshold Voltage DC (Pins 2,3) IO>=4.2mA VTH- VCC=4.5V, VIN=V2-V3, Pins 1 & 4 Open, VO=2.4V, 2.01 2.6 IO<=0.1mA 2.86 V VTH+ VCC=4.5V, VIN=|V1-V4|, Pins 2 & 3 Open, VO=0.4V, IO>=4.2mA 4.23 5.1 5.50 V VCC=4.5V, VIN=|V1-V4|, Pins 2 & 3 Open, VO=2.4V, IO<=0.1mA 2.87 3.8 Input Threshold Voltage AC (Pins 1,4) VTHIHYS VHYS Hysteresis 9,10 4.24 V IHYS=ITH+-ITH- 1.2 mA VHYS=VTH+-VTH- 1.2 V VIHC1 VIHC1=V2-V3, V3=GND, IIN=10mA, Pin 1 & 4 connected to 3 5.4 6.0 6.6 V VIHC2 VIHC2=|V1-V4|, |IIN|=10mA, Pins 2 & 3 Open 6.1 6.7 7.3 V Input Clamp Voltage VIHC3 VIHC3=V2-V3, V3=GND, IIN=15mA, Pins 1 & 4 Open 12.0 13.4 V VILC VILC=V2-V3, V3=GND, IIN=10mA -0.76 V IIN Input Current VIN=V2-V3=5.0V, Pin 1 & 4 Open VD1,2 VD3,4 Bridge Diode Forward Voltage IIN=3mA VOL Logic Low Output Voltage VCC=4.5V, IOL=4.2mA IOH Logic High Output Current VCC=VOH=18V ICCL Logic Low Supply Current VO=Open, VCC=V2-V3=5.0V 1.0 ICCH Logic High Supply Current VO=Open, VCC=18V 2 IIO Input-Output Insulation Leakage Current RH=45%, TA=25C, t=5s, VIO=3000Vdc RIO Input-Output Resistance VIO=500Vdc 1000 Gohm 11 CIO Input-Output Capacitance f=1MHz, VIO=0 0.6 pF CIN Input Capacitance f=1MHz, VIN=0, Pins 2 & 3, Pins 1 & 4 Open 50 pF 3.0 3.7 4.4 mA 0.59 V 0.74 V 0.1 0.4 V 9 0.1 mA 9 4 mA 1 nA 9 A 11 11 Switching Characteristics (Ta=25C, Vcc=5V) SYMBOL PARAMETER tPHL Propagation Delay Time to Logic Low at Output tPLH Propagation Delay Time to Logic High at Output tR CONDITIONS MIN TYP MAX UNIT NOTES 4.0 15 s 6 10.0 40 s 6 Output Rise (10-90%) 20 s tF Output Fall Time (90-10%) 0.3 s CMH Common Mode Transient RL=4.7kohm, VCMH=1400V, Immunity at Logic High Level IIN=0mA, VO(MIN)=2.0V Output 4000 V/s 7,8 RL=4.7kohm, CL=30pF CML Common Mode Transient Immunity at Logic Low Level Output RL=4.7kohm, VCML=140V, IIN=3.11mA, VO(MAX)=0.8V -600 V/s 7,8 Notes 1. Current into/out of any single lead 2. Surge input current duration is 3ms at 120Hz pulse repetition rate. Transient input current duration is 10s at 120Hz pulse repetition rate. Maximum input power, Pin, must be observed. 3. Maximum input power dissipation of 230mW allows an input IC junction temperature of 125C at an ambient temperature of Ta=70C with a typical thermal resistance from junction to ambient of Ojai=240C/W. Excessive Pin and Tj may result in IC chip degradation. 4. Maximum output power dissipation of 210mW allows an output IC junction temperature of 125C at an ambient temperature of Ta=70C with a typical thermal resistance from junction to ambient of Ojao=265C/W. 5. Maximum operating frequency is defined when output waveform (Pin 6) obtains only 90% of Vcc with Rl=4.7kohm, Cl=30pF using a 5V square wave input signal. 6. The tPHL (tPLH) propagation delay is measured from the 2.5V level of the leading (trailing) edge of a 5.0V input pulse, 1s rise (fall) time, to the 1.5V level on the leading (trailing) edge of the output pulse. 7. Common mode transient immunity in Logic High (Low) Level is the maximum tolerable, positive (negative), dVcm/dt on the leading (trailing) edge of the common mode pulse signal, Vcm, to ensure that the output will remain in a Logic High (Low) state, ie. Vo>2.0V (Vo<0.8V). 8. In applications where dVcm/dt may exceed 50000V/s (such as static discharge), a series resistor Rcc should be included to protect the detector IC from destructively high surge currents. The recommended value for Rcc is 240ohm per volt of allowable drop in Vcc between Pin 8 and Vcc with a minimum value of 240ohm. 9. Logic low output level at Pin 6 occurs under the conditions of Vin>=Vth+ as well as the range Vin>Vthonce Vin has exceeded Vth+. Logic high output level at Pin 6 occurs under the conditions of Vin<=Vth- as well as the range of Vin<Vth+ once Vin has decreased below Vth-. 10. AC voltage is instantaneous voltage. 11. Device considered a two-terminal device: Pins 1,2,3,4 connected together, and Pins 5,6,7,8 connected together. Isocom takes great effort to ensure accurate data, but regrettably cannot be held liable for any error on its website. Visit File Lists to confirm old printouts are up-to-date. Contents