CPC7581 Datasheet, PDF (1/12 Pages) Clare, Inc. – Line Card Access Switch

CPC7581
Line Card Access Switch
Features
• Small 16 pin surface mount SOIC package
• Monolithic IC reliability
• Low matched RDS_ON
• 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
T_{LINE (3)}
Secondary
Protection
Ring
R2
R_{LINE (14)}
TRING (6)
SW3
Ringing
Return
SW1
Break
V_BAT
Reference (16)
SCR
and Trip
Circuit
T_BAT (2)
SLIC
SW4
Ringing
Access
SW2
Break
Ring Generator
R_RING (12)
R_BAT(15)
CPC7581BA
-
+
Battery
DS-CPC7581-R2
www.clare.com
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