HCPL-3700

Maximum Propagation Delay Time :
Maximum Reverse Diode Voltage :
Maximum Forward Diode Current :
Minimum Operating Temperature : - 40 C
Packaging : Tube
Isolation Voltage : 3750 Vrms
Output Type : Open Collector
Package / Case : DIP-8
Maximum Forward Diode Voltage : 0.74 V
Maximum Continuous Output Current : 30 mA
Maximum Power Dissipation : 305 mW
Maximum Operating Temperature : + 85 C


Features:

•Standard (HCPL-0370/3700) and Low Input Current (HCPL-3760) Versions
•AC or DC Input
•Programmable Sense Voltage
•Hysteresis
•Logic Compatible Output
•Thresholds Guaranteed over Temperature
•Thresholds Independent of LED Optical Parameters
•Recognized under UL 1577 and CSA Approved for Dielectric Withstand Proof Test Voltage of 3750 Vac, 1 Minute

Application

•Limit Switch Sensing
•Low Voltage Detector
•5 V-240 V AC/DC Voltage
Sensing
•Relay Contact Monitor
•Relay Coil Voltage Monitor
•Current Sensing
•Microprocessor Interfacing

Specifications

Parameter		Symbol	Min.	Max.	Units	Note
Storage Temperature		TS	-55	125	°C
Operating Temperature		TA	-40	85	°C
Lead Soldering Cycle	Temperature			260	°C	1
	Time			10	s
Input Current	Average	IIN		50	mA	2
	Surge			140		2, 3
	Transient			500
Input Voltage (Pins 2-3)		VIN	-0.5		V
Input Power Dissipation	HCPL-3700/3760	PIN		230	mW	4
	HCPL-0370			172
Total Package Power Dissipation	HCPL-3700/3760	PT		305	mW	5
	HCPL-0370			275
Output Power Dissipation	HCPL-3700/3760	PO		210	mW	6
	HCPL-0370			103
Output Current	Average	IO		30	mA	7
Supply Voltage (Pins 8-5)		VCC	-0.5	20	V
Output Voltage (Pins 6-5)	VO		-0.5	20	V
Solder Reflow Temperature Profile		See Package Outline Drawings section

Description

The HCPL-3700 is a voltage/current threshold detection optocoupler for use in AC-to-DC logic interface and Intelligent Power Module (IPM) applications. With a single external resistor the threshold sensing input buffer ICs control threshold levels over a wide range of input voltages.

The HCPL-3700 input buffer incorporates several features: hysteresis for extra noise immunity and switching immunity, a diode bridge for easy use with ac input signals, and internal clamping diodes to protect the buffer and LED from a wide range of over-voltage and over-current transients. Because threshold sensing is done prior to driving the LED, variations in optical coupling from the LED to the detector will have no effect on the threshold levels.

HCPL-3700's input buffer IC has a nominal turn on threshold of 2.5 mA (ITH ) and 3.5 volts (VTH ).

The high gain output stage features an open collector output providing both TTL compatible saturation voltages and CMOS compatible breakdown voltages.By combining several unique functions in a single package, the user is provided with an ideal component for industrial control computer input boards and other applications where a predetermined input threshold level is desirable. The HCPL-3700 is voltage/current threshold detection optocouplers. The HCPL-3760 is a low-current version of the HCPL-0370/3700. To obtain lower current operation, the HCPL-3760 uses a high-efficiency AlGaAs LED which provides higher light output at lower drive currents. The devices utilize threshold sensing input buffer ICs which permit control of threshold levels over a wide range of input voltages with a single external resistor.

The HCPL-3700 input buffer incorporates several features: hysteresis for extra noise immunity and switching immunity, a diode bridge for easy use with ac input signals, and internal clamping

Parameters:

Technical/Catalog Information	HCPL-3700
Vendor	Avago Technologies US Inc.
Category	Isolators
Mounting Type	Through Hole
Package / Case	8-DIP
Isolation Voltage	3750Vrms
Configuration	1, One Direction
Input Type	Logic
Output Type	Open Collector
Data Rate	-
Current - Output/Channel	30mA
Packaging	Tube
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	HCPL 3700 HCPL3700 516 1131 5 ND 51611315ND 516-1131-5