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PDF CPC7581BB-TR Data sheet ( Hoja de datos )
| Número de pieza | CPC7581BB-TR | |
| Descripción | Line Card Access Switch | |
| Fabricantes | Clare Inc. | |
| Logotipo |  |
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CPC7581
Line Card Access Switch
Features
• Small 16 pin surface mount SOIC package
• Monolithic IC reliability
• Low matched RDSON
• Eliminates the need for zero cross switching
• Flexible switch timing to transition from ringing mode
to idle/talk mode
• Clean, bounce free switching
• Tertiary Protection consisting of integrated current
limiting, thermal shutdown and SLIC protection
• 5V operation with power consumption <10mW
• Intelligent battery monitor
• Latched logic level inputs, no drive circuitry
• Pin to pin compatible to the Lucent 7581 family
Description
The CPC7581 is a monolithic solid state switch in a 16 pin
surface mount SOIC package. It provides the necessary
functions to replace a 2-Form-C electromechanical relay
on analog line cards found in Central Office, Access and
PBX equipment. The device contains solid state switches
for tip and ring line break and ring injection/ring return.
The CPC7581 requires only a +5V supply and offers
“break-before-make” or “make-before-break” switch oper-
ation using simple logic level input control. There are two
versions of the CPC7581, the CPC7581BA and the
CPC7581BB. The “BA” version has a protection SCR
which provides protection to the SLIC device and subse-
quent circuitry during fault conditions.
Applications
• 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
Ordering Information
Part #
Description
CPC7581BA 4 Pole with protection SCR
CPC7581BB 4 Pole without protection SCR
CPC7581BA-TR Tape & Reel Version
CPC7581BB-TR Tape & Reel Version
Block Diagram
TIP R1
TLINE (3)
Secondary
Protection
Ring
R2
RLINE (14)
TRING (6)
SW3
Ringing
Return
SW1
Break
VBAT
Reference (16)
SCR
and Trip
Circuit
TBAT (2)
SLIC
SW4
Ringing
Access
SW2
Break
Ring Generator
RRING (12)
RBAT(15)
CPC7581BA
-
+
Battery
DS-CPC7581-R2
www.clare.com
1
1 page  
CPC7581
Table 5. Make-Before-Break Operation (Ringing to Idle/Talk Transition)
Input
5V
0V
0V
TSD
5V/Float
5V/Float
5V/Float
State
Ringing
Make-before-break
Idle / Talk
Timing
-
SW4 waiting for next zero current
crossing to turn off. Maximum
time is half of ringing. In this
transition state, current that is
limited to the dc break switch
current limit value will be sourced
from the ring node of the SLIC
Zero cross current has occurred
Break
Switches
1&2
Open
Closed
Closed
Ring
Return
Switch
3
Closed
Open
Open
Ring
Access
Switch
4
Closed
Closed
Open
Table 6. Break-Before-Make Operation (Ringing to Idle/Talk Transition)
Input
5V
5V
TSD
5V/Float
0V
0V 0V
0V 5V/Float
State
Ringing
All Off
All/Off
Idle/Talk
Timing
-
Hold this state for <=25ms.
SW4 waiting for zero current to
turn off.
Zero current has occurred
SW4 has opened
Release Break Switches
Break
Switches
1&2
Open
Open
Open
Closed
Ring
Return
Switch
3
Closed
Open
Open
Open
Ring
Access
Switch
4
Closed
Closed
Open
Open
Rev. 2 www.clare.com
5
5 Page 
CPC7581
MECHANICAL DIMENSIONS
16 Pin SOIC (JEDEC Package)
2.44 MIN / 2.64 MAX
(.096 MIN / .104 MAX)
0.51 MIN / 1.01 MAX
(.020 MIN / .040 MAX)
10.11 MIN / 10.31 MAX
(.398 MIN / .406 MAX)
1.27
(.050)
0.23 MIN / 0.32 MAX
(.0091 MIN / .0125 MAX)
7.40 MIN / 7.60 MAX
(.291 MIN / .299 MAX)
10.11 MIN / 10.51 MAX
(.398 MIN / .414 MAX)
0.36 MIN / 0.46 MAX
(.014 MIN / .018 MAX)
PC Board Pattern
(Top View)
1.270
(.050)
1.193
(.047)
.787
(.031)
9.728 ± .051
(.383 ± .002)
Dimensions
mm
(Inches)
Rev. 2 www.clare.com
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet CPC7581BB-TR.PDF ] | |
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