IL256AT

Current Transfer Ratio :
Maximum Collector Current :
Maximum Collector Emitter Saturation Voltage : 0.4 V
Minimum Operating Temperature : - 55 C
Packaging : Reel
Maximum Forward Diode Voltage : 1.5 V
Maximum Operating Temperature : + 100 C
Input Type : AC
Maximum Collector Emitter Voltage : 30 V
Package / Case : SOIC-8 Narrow
Isolation Voltage : 4000 Vrms
Maximum Power Dissipation : 240 mW


Features:

·Guaranteed CTR symmetry, 2:1 maximum
·Bidirectional AC input industry standard SOIC-8 Surface mountable package
·Isolation test voltage, 4000 V RMS
·Standard lead spacing, 0.05"
·Available only on tape and reel (conform to EIA standard RS481A)
·Lead (Pb)-free component
·Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC




Application

·Telecom applications ring detection




Pinout






Specifications

PARAMETER	TEST CONDITION	SYMBOL	VALUE	UNIT
INPUT
Forward continuous current		IF	60	mA
Power dissipation		Pdiss	90	mW
Derate linearly from 25!a			0.8	mW/
OUTPUT
Collector-emitter breakdown voltage		BVCEO	30	V
Emitter-collector breakdown voltage		BVECO	5	V
Collector-base breakdown voltage		BVCBO	70	V
Power dissipation		Pdiss	150	mW
Derate linearly from 25			2.0	mW/
COUPLER
Isolation voltage, input to output		VISO	4000	VRMS
Total package dissipation (LED and detector)		Ptot	240	mW
Derate linearly from 25			3.2	mW/
Storage temperature		Tstg	-55 to +150
Operating temperature		Tamb	-55 to +100
Soldering time at 260			10	s

Note
Tamb= 25, unless otherwise specified
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute maximum ratings for extended periods of the time can adversely affect reliability.

Description

Optocoupler, Phototransistor Output, AC Input, with Base Connection

The IL256AT is an AC input phototransistor optocoupler. The device consists of two infrared emitters connected in reverse parallel and coupled to a silicon NPN phototransistor detector.

These circuit elements of the IL256AT are constructed with a standard SOIC-8 foot print.

The product of the IL256AT is well suited for telecom applications such as ring detection or off/on hook status, given its bidirectional
LED input and guaranteed current transfer ratio (CTR) minimum of 20 % at I_F= 10 mA.