OBSOLETE
ITC135P
Integrated Telecom Circuits
INTEGRATED
CIRCUITS
DIVISION
Description
Parameter
Relay Blocking Voltage
Rating
350
Units
This Integrated Telecom Circuit combines a single-pole,
normally open (1-Form-A) solid state relay, a bridge
rectifier, a Darlington transistor, an optocoupler, and
Zener diodes into one 16-pin SOIC package,
consolidating designs and reducing component count
in telecom applications.
V
mArms / mADC
Relay Load Current
120
Relay On-Resistance (max)
Bridge Rectifier Reverse Voltage
Darlington Collector Current
Darlington Current Gain
15
100
V
mA
-
120
10,000
The ITC135’s optocoupler provides for half-wave
detection of ringing signals.
Features
• 3750Vrms Input/Output Isolation
• FCC Compatible Part 68
Approvals
• 2mW Hook Switch Drive Power (Logic Compatible)
• Full-Wave Bridge Rectifier
• Darlington Transistor for Electronic Inductor “Dry”
Circuits
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1305490
• EN62368-1 Certified Component:
TUV Certificate: B 082667 0008 Rev 00
• Half-Wave Current Detector for Ring Signal or Loop
Current Detect
• Includes Zener Diodes
Ordering Information
• Board Space and Cost Savings
• Small 16-Pin SOIC Package
• Tape & Reel Version Available
• JEDEC Standard Pin Out
Part #
ITC135P
Description
16-Pin SOIC (50/Tube)
ITC135PTR
16-Pin SOIC (1000/Reel)
Applications
Pin Configuration
• Data/Fax Modem
1
16
(N/C)
Output Form A
• Voice Mail Systems
• Telephone Sets
• Computer Telephony Integration
• Cable TV Modems
2
15
– LED - Form A Relay
Output Form A/Bridge Input –/+
PV
3
14
13
– LED - Form A Relay
Darlington Base
4
+ Zener Diode (cathode)
Darlington Emitter
5
12
– Zener Diode (anode)
Bridge Output +/Darlington Collector/
+ Zener Diode (cathode)
6
11
10
9
+ Zener Diode (cathode)
Bridge Output –/– Zener Diode (anode)
7
Collector - Phototransistor
LED - Phototransistor (+)
8
*
Emitter - Phototransistor
LED - Phototransistor (–)
Denotes reverse polarity protection diode;
half-wave detection only.
*
Switching Characteristics
of Normally Open Devices
Form-A
IF
90%
t
10%
t
ILOAD
on
off
1
DS-ITC135P_ROBS
www.ixysic.com