CPC7591BA datasheet(1/17 Pages) IXYS

Teilenummer	CPC7591BA

Bauteilbeschribung	Monolithic IC Reliability

PDF	17 Pages

Scroll/Zoom	100%

Hersteller	IXYS [IXYS Corporation]

Direct Link	http://www.ixys.com

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1 / 17 page

INTEGRATED CIRCUITS DIVISION

DS-CPC7591-R06

www.ixysic.com

1

CPC7591

Line Card Access Switch

e3

Pb

Features

• TTL Logic Level Inputs for 3.3V Logic Interfaces

• Smart Logic for Power Up / Hot Plug State Control

• Improved Switch dV/dt Immunity of 500 V/

s

• Monolithic IC Reliability

• Low, Matched R

ON

• Eliminates the Need for Zero-Cross Switching

• Flexible Switch Timing for Transition from Ringing

Mode to Idle/Talk Mode.

• Clean, Bounce-Free Switching

• Tertiary Protection Consisting of Integrated Current

Limiting, Voltage Clamping, and Thermal Shutdown

for SLIC Protection

• 5V Operation with Power Consumption < 10 mW

• Intelligent Battery Monitor

• Latched Logic-Level Inputs, no External Drive

Circuitry

• Small 16-pin SOIC

Applications

• VoIP Gateways

• Central office (CO)

• Digital Loop Carrier (DLC)

• PBX Systems

• Digitally Added Main Line (DAML)

• Hybrid Fiber Coax (HFC)

• Fiber in the Loop (FITL)

• Pair Gain System

• Channel Banks

Description

The CPC7591 is a member of IXYS Integrated

Circuits Division’s next generation Line Card Access

Switch (LCAS) family. This monolithic 4-pole solid

state switch is available in a 16-pin SOIC package. It

provides the necessary functions to replace the

2-Form-C electromechanical ringing relay and it’s

associated snubber circuitry on traditional analog line

cards or contemporary integrated voice and data (IVD)

line cards found in Central Office (CO), Access, and

PBX equipment. Because this device contains solid

state switches for tip and ring line break and for ringing

injection/return, it requires only a +5 V supply for

operation and TTL logic-level inputs for control. The

CPC7591 provides stable start-up conditioning during

system power up and for hot plug insertion

applications. Once active, the inputs respond to

traditional TTL logic levels, enabling the CPC7591 to

be used with 3.3V-only logic.

For negative transient voltage protection the

CPC7591BA version includes SCRs to provide

voltage fold-back protection for the SLIC and

subsequent circuitry, while the CPC7591BB version

utilizes clamping diodes to the VBAT pin. For positive

transient voltage protection all versions provide

clamping diodes to the FGND pin.

Ordering Information

Figure 1. CPC7591 Block Diagram

Part #

Description

CPC7591BA

16-Pin SOIC, with Protection SCR, 50/Tube

CPC7591BATR

16-Pin SOIC, with Protection SCR, 1000/Reel

CPC7591BB

16-Pin SOIC, without Protection SCR, 50/Tube

CPC7591BBTR

16-Pin SOIC, without Protection SCR, 1000/Reel

CPC7591

T

LINE

R

LINE

T

BAT

V

DD

R

BAT

D

GND

V

BAT

F

GND

V

REF

IN

RINGING

T

SD

LATCH

3

6

14

2

7

8

9

16

1

12

15

10

11

L

A

T

C

H

Switch

Control

Logic

SCR Trip Circuit

(CPC7591BA)

+5 Vdc

Tip

Ring

SLIC

Secondary

Protection

X

SW2

SW4

RINGING

300

(min.)

Ω

T

RINGING

SW3

SW1

V

BAT

R

RINGING

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