HCPL-2731

Maximum Reverse Diode Voltage : 5 V
Packaging : Tube
Maximum Forward Diode Voltage : 1.7 V
Maximum Input Diode Current : 20 mA
Maximum Baud Rate : 100 KBps
Maximum Power Dissipation : 135 mW
Maximum Operating Temperature : + 70 C
Minimum Operating Temperature : 0 C
Package / Case : PDIP-8
Current Transfer Ratio : 1800 %


Features:

Low current - 0.5 mA
Superior CTR-2000%
Superior CMR-10 kV/s
CTR guaranteed 0-70°C
U.L. recognized (File # E90700)
VDE recognized (File # 120915) Ordering option V, e.g., 6N138V
Dual Channel - HCPL-2730
HCPL-2731




Application

Digital logic ground isolation
Telephone ring detector
EIA-RS-232C line receiver
High common mode noise line receiver
P bus isolation
Current loop receiver




Specifications

Parameter		Symbol	Value	Units
Storage Temperature		TSTG	-55 to +125	°C
Operating Temperature		TOPR	-40 to +85	°C
Lead Solder Temperature (Wave solder only. See recommended reflow profile graph for SMD mounting)		TSOL	260 for 10 sec	°C
EMITTER
DC/Average Forward Input Current Each Channel		IF (avg)	20	mA
Peak Forward Input Current (50% duty cycle, 1 ms P.W.) Each Channel		IF (pk)	40	mA
Peak Transient Input Current - (1 s P.W., 300 pps)		IF (trans)	1.0	A
Reverse Input Voltage Each Channel		VR	5	V
Input Power Dissipation Each Channel		PD	35	mW
DETECTOR
Average Output Current Each Channel		IO (avg)	60	mA
Emitter-Base Reverse Voltage (6N138 and 6N139)		VER	0.5	V
Supply Voltage, Output Voltage	(6N138, HCPL-2730)	VCC , VO	-0.5 to 7	V
	(6N139, HCPL-2731)		-0.5 to 18
Output Power Dissipation Each Channel		PO	100	mW

Description

This HCPL-2731 dual channel optocoupler contains a separated pair of GaAsP light emitting diodes optically coupled to a pair of integrated high gain photo detectors. HCPL-2731 provides extremely high current transfer ratio and excellent input-output common mode transient immunity. A separate pin for the photodiodes and first gain stages (VCC) permits lower output saturation voltage and higher speed operation possible with conventional photodarlington type optocouplers. In addition, VCC may be as low as 1.6 V without adversely affecting the parametric performance. HCPL-2731 is available in an 8-pin DIP package.Guaranteed operation at low input currents and the high current transfer ratio (CTR) reduce the magnitude and effects of CTR degradation.

The outstanding high temperature performance of this split Darlington type output amplifier results from the inclusion of an integrated emitter-base bypass resistor which shunts photodiode and first stage leakage currents to grounds. The HCPL-2731 has a 400% minimum CTR at an input current of only 0.5 mA making it ideal for use in low input current applications such as MOS, CMOS, and low power logic interfacing or RS232C data transmission systems. In addition, the high CTR and high output current capability make this device extremely useful in applications where high fanout is required. Compatibility with high voltage CMOS logic systems is guaranteed by the 18 V VCC and VO specifications and by testing output high leakage (IOH) at 18 V.

Important specifications such as CTR, leakage current, output saturation voltage are guaranteed over the 0 degrees C to 70 degrees C temperature range to allow trouble-free system operation. Selection for lower input currents down to 250 mA is available upon request. The 6N138/9 and HCPL-2730/HCPL-2731 optocouplers consist of an AlGaAs LED optically coupled to a high gain split darling-ton photodetector.

The split darlington configuration separating the input photo-diode and the first stage gain from the output transistor permits lower output saturation voltage and higher speed operation than possible with conventional darlington phototransistor optocou-pler. In the dual channel devices, HCPL-2730/HCPL2731, an integrated emitter - base resistor provides superior stability over temperature. The combination of a very low input current of 0.5 mA and a high current transfer ratio of 2000% makes this family particu- larly useful for input interface to MOS, CMOS, LSTTL and EIA RS232C, while output compatibility is ensured to CMOS as well as high fan-out TTL requirements. An internal noise shield pro- vides exceptional common mode rejection of 10 kV/s.

Parameters:

Technical/Catalog Information	HCPL-2731
Vendor	Avago Technologies US Inc.
Category	Isolators
Isolation Voltage	3750Vrms
Input Type	DC
Output Type	Darlington with Vcc
Current - Output/Channel	60mA
Voltage - Output	18V
Vce Saturation (Max)	100mV
Current Transfer Ratio (Min)	400% @ 500A
Mounting Type	Through Hole
Package / Case	8-DIP
Packaging	Tube
Number of Circuits	2 - Dual
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	HCPL 2731 HCPL2731 516 1016 5 ND 51610165ND 516-1016-5