CLARE ITC135P Datasheet

1

www.clare.com

ITC135P

DS-ITC135P-Rxx

The Integrated Telecom Circuit combines a 1-Form-A solid
state relay, bridge rectifier, Darlington transistor, optocou­pler and zener diodes into one 16 pin SOIC package, con­solidating designs and reducing component count in
telecom applications. The ITC135P’s optocoupler provides
half wave ring detection.

• Data/Fax Modem

• Voice Mail Systems

• Telephone Sets

• Computer Telephony Integration

• Cable TV Modems

• UL Recognized: File Number E76270

• CSA Certified: File Number LR 43639-12

• BSI Certified:

• BS EN 60950:1992 (BS7002:1992)

Certificate #: 7969

• BS EN 41003:1993

Certificate #: 7969

• Small 16 Pin SOIC Package (PCMCIA Compatible)

• Board Space and Cost Savings

• 2mW Hookswitch Drive Power (Logic Compatible)

• No Moving Parts

• 3750V

RMS

Input/Output Isolation

• FCC Compatible Part 68

• Full-Wave Bridge Rectifier

• Darlington Transistor for Electronic Inductor “Dry”

Circuits

• Half Wave Current Detector for Ring Signal or Loop

Current Detect

• Current Limiting and Tape & Reel Versions Available

• JEDEC Standard Pin Out

• Includes Zener Diodes

Applications

Features

Description

Approvals

Integrated Telecom Circuits

Ordering Information

Part # Description

ITC135P 16 Pin SOIC (50/Tube)
ITC135P 16 Pin SOIC (1000/Reel)

Pin Configuration

C

ITC135P Units

Relay Load Voltage 350 V
Relay Load Current 120 mA
Relay Max R

ON

15 Ω

Bridge Rectifier Reverse

Voltage 100 V
Darlington Collector Current 120 mA
Darlington Current Gain 10,000 -

1

(N/C)

– LED - Form A Relay

– LED - Form A Relay

+ Zener Diode (cathode)

– Zener Diode (anode)

+ Zener Diode (cathode)

ollector - Phototransistor

Emitter - Phototransistor

2

3

4

5

6

7

8

ITC135P

PV

Denotes half-wave detection

*

16

15

14

13

12

11

10

9

*

Output Form A

Output Form A/Bridge Input –/+

Darlington Base

Darlington Emitter

Bridge Output +/Darlington Collector/
+ Zener Diode (cathode)

Bridge Output –/– Zener Diode (anode)

LED - Phototransistor –/+

LED - Phototransistor +/–

www.clare.com

ITC135P

Rev. X

Absolute Maximum Ratings are stress ratings. Stresses
in excess of these ratings can cause permanent damage
to the device. Functional operation of the device at these
or any other conditions beyond those indicated in the
operational sections of this data sheet is not implied.
Exposure of the device to the absolute maximum ratings
for an extended period may degrade the device and effect
its reliability.

Absolute Maximum Ratings (@ 25˚ C)

2

Parameter Min Typ Max Units

Total Package Dissipation - - 1

1

W
Isolation Voltage
Input to Output 3750 - - V

RMS

Operational Temperature -40 - +85 °C
Storage Temperature -40 - +125 °C
Soldering Temperature - - +220 °C

(10 Seconds Max.)

1

Above 25˚ derate linerity 8.33mw/˚C
Total Power Dissipation (PD):
P

D=PHOOKSWITCH

+ P

BRIDGE

+ P

DARLINGTON

+ P

LED

PD=(RDS(on)) (I

2

L

) + 2(VF)(IL) + (VCE)(IL) + (V

LED

)(IF)
WHERE:
R

DS

(on) = Maximum realy on resistance

I

L

= Maximum loop current

V

F

= Maximum diode forward voltage

V

CE

= Maximum voltage collector to emitter

V

LED

= Maximum LED forward voltage

I

F

= Maximum LED current

Electrical Characteristics

Parameter Conditions Symbol Min Typ Max Units

Relay Portion (Pins 15,16)

Output Characteristics @ 25°C

Load Voltage, DC or Peak AC - V

L

- - 350 V

Load Current (Continuous) - I

L

- - 120 mA

On-Resistance I

L

=120mA R

ON

-- 15Ω

Off-State Leakage Current V

L

=350, TJ=25˚C I

LEAK

-- 1µA

Switching Speeds

Turn-On I

F

=5mA, VL=10V T

ON

-- 3ms

Turn-Off I

F

=5mA, VL=10V T

OFF

-- 3ms

Output Capacitance 50V, f=1MHz C

OUT

-25 - pF

Relay Portion (Pins 2,3)

Input Characteristics @ 25°C

Input Control Current I

L

=120mA I

F

5- 50mA

Input Voltage Drop I

F

=5mA V

F

0.9 1.2 1.4 V

Reverse Input Voltage - V

R

-- 5V

Reverse Input Current VR=5V I

R

- - 10 µA

Detector Portion (Pins 7,8)

Output Characteristics @ 25°C

Phototransistor Blocking

Voltage I

C

=10µA BV

CEO

20 50 - V

Phototransistor Dark Current V

CE

=5V, IF=0mA I

CEO

- 50 500 A

Saturation Voltage I

C

=2mA, IF=16mA V

SAT

- 0.3 0.5 V

Current Transfer Ratio IF=6mA, VCE=0.5V CTR 33 400 - %

Detector Portion (Pins 9,10)

Input Characteristics @ 25°C

Input Control Current I

C

=2mA, VCE=0.5V I

F

6 2 100 mA

Input Voltage Drop I

F

=5mA V

F

0.9 1.2 1.4 V

Input Current I

C

=1µA, VCE=5V I

F

525 - µA

(Detector must be off)

ITC135P

www.clare.com

3

Rev. X

Electrical Characteristics

Parameter Conditions Symbol Min Typ Max Units

Bridge Rectifier Electrical

Ratings @ 25°C

Reverse Voltage - V

RD

- - 100 V

Forward Drop Voltage I

FD

=120mA V

FD

- - 1.5 V

Reverse Leakage Current T

J

=25˚C, VR=100V I

RD

- - 10 µA

T

J

=85˚C - - 50 µA

Forward Current (Continuous) I

FD

- - 140 mA

Forward Current (Peak) t=10mS I

FD

- - 0.5 A

Darlington Electrical

Ratings @ 25°C

Collector-Emitter Voltage I

c

=10mA DC, IB=0 V

CEO

40 - - V

Collector-Current Continuous V

C

=3.5V I

C

- - 120 mA

Power Dissipation @ 25˚C - P

d

- - 500 mW

Off-State Collector Emitter

Leakage Current V

CE

=10V; IB=0mA I

CEX

-- 1µA

DC Current Gain I

C

=120mA, h

FE

10,000 - -

V

CE

=10VDC

Saturation Voltage I

C

=120mA V

CE(SAT)

- - 1.5 V

Total Harmonic Distortion fo=300Hz @ -10dBm - - - -80 dB

IC=40mA

Zener Characteristics @ 25°C

Zener Voltage I

ZT

=20mA V

z

- 4.3 - V

(Between pins 4+5 and 6+5)

Zener Voltage I

ZT

=20mA V

z

-15 - V

(Between pins 12+11)

Input to Output Capacitance - C

I/O

-3 -pF

Input to Output Isolation - V

I/O

3750 - - V

RMS

EXAMPLE CIRCUIT

MOSFET

DRIVER

CIRCUIT

4

1

3

2

7

8

6

5

16

15

14

13

12

11

10

9

DIGITAL

GROUND

ISOLATED

GROUND

CPU

RING

OFF-HOOK

680

V

CC

15V

4.7µF
+

4.7µF
+

51k

15Ω

10µF

25k

COUPLING

TRANSFORMER

R

L

10

300V SURGE

PROTECTION

TELEPHONE

LINE

RING

18Vx 2 0.47µF

250V

8.2k

V

CC

TIP

A

B

A

B