參數(shù)資料
型號： CPC7592MC
廠商： CLARE INC
元件分類： 通信及網(wǎng)絡(luò)
中文描述： SPECIALTY TELECOM CIRCUIT, PDSO16
封裝： ROHS COMPLIANT, DFN-16
文件頁數(shù)： 3/20頁
文件大?。?/td> 588K
代理商： CPC7592MC
CPC7592
R03
www.clare.com
11
2. Functional Description
2.1 Introduction
2.1.1 CPC7592xA and CPC7592xB Logic States
Talk. Break switches SW1 and SW2 closed, ringing
switches SW3 and SW4 open, and test switches
SW5 and SW6 open.
Ringing. Break switches SW1 and SW2 open,
ringing switches SW3 and SW4 closed, and test
switches SW5 and SW6 open.
Test. Break switches SW1 and SW2 open, ringing
switches SW3 and SW4 open, and loop test
switches SW5 and SW6 closed.
All-off. Break switches SW1 and SW2 open, ringing
switches SW3 and SW4 open, and test switches
SW5 and SW6 open.
2.1.2 CPC7592xC Logic States
Talk. Break switches SW1 and SW2 closed, ringing
switches SW3 and SW4 open, and test switches
SW5 and SW6 open.
Ringing. Break switches SW1 and SW2 open,
ringing switches SW3 and SW4 closed, and test
switches SW5 and SW6 open.
Test/Monitor. Break switches SW1 and SW2
closed, ringing switches SW3 and SW4 open, and
test switches SW5 and SW6 closed.
Ringing Test. Break switches SW1 and SW2 open,
ringing switches SW3 and SW4 closed, and test
switches SW5 and SW6 closed.
All-off. Break switches SW1 and SW2 open, ringing
switches SW3 and SW4 open, and test switches
SW5 and SW6 open.
The CPC7592 offers break-before-make and
make-before-break switching from the ringing state to
the talk state with simple TTL level logic input control.
Solid-state switch construction means no impulse
noise is generated when switching during ring
cadence or ring trip, eliminating the need for external
zero-cross switching circuitry. State control is via TTL
logic-level input so no additional driver circuitry is
required. The linear break switches SW1 and SW2
have exceptionally low RON and excellent matching
characteristics. The ringing switch, SW4, has a
minimum open contact breakdown voltage of 465 V at
+25
°C sufficiently high with proper protection to
prevent breakdown in the presence of a transient fault
condition (i.e., passing the transient on to the ringing
generator).
Integrated into the CPC7592 is an over-voltage
clamping circuit, active current limiting, and a thermal
shutdown mechanism to provide protection for the
SLIC during a fault condition. Positive and negative
lightning surge currents are reduced by the current
limiting circuitry and hazardous potentials are diverted
away from the SLIC via the protection diode bridge or
the optional integrated protection SCR. Power-cross
potentials are also reduced by the current limiting and
thermal shutdown circuits.
To protect the CPC7592 from an over-voltage fault
condition, use of a secondary protector is required.
The secondary protector must limit the voltage seen at
the tip and ring terminals to a level below the
maximum breakdown voltage of the switches. To
minimize the stress on the solid-state contacts, use of
a foldback or crowbar type secondary protector is
highly recommended. With proper selection of the
secondary protector, a line card using the CPC7592
will meet all relevant ITU, LSSGR, TIA/EIA and IEC
protection requirements.
The CPC7592 operates from a single +5 V supply.
This gives the device extremely low power
consumption in any state with virtually any range of
battery voltage. The battery voltage used by the
CPC7592 has a two fold function. It is used as a
reference and as a current source for the internal
integrated protection circuitry under surge conditions.
Second, it is used as a reference. In the event of
battery voltage loss, the CPC7592 enters the all-off
state.
2.2 Under Voltage Switch Lock Out Circuitry
2.2.1 Introduction
Smart logic in the CPC7592 now provides for switch
state control during both power up and power loss
transitions. An internal detector is used to evaluate the
VDD supply to determine when to de-assert the under
voltage switch lock out circuitry with a rising VDD and
when to assert the under voltage switch lock out
circuitry with a falling VDD. Any time unsatisfactory low
VDD conditions exist the lock out circuit overrides user
switch control by blocking the information at the
external input pins and conditioning internal switch
commands to the all off state. Upon restoration of VDD
the switches will remain in the all-off state until the
LATCH input is pulled low.
相關(guān)PDF資料
PDF描述
CPC7592BATR
CPC7592MATR
CPC7592BC
CPC7592MCTR
CPC7592BB
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CPC7592MCTR 功能描述:固態(tài)繼電器-PCB安裝 6-pole, extra logic, MLP LCAS, T/R RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負載電壓額定值:40 V 負載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT
CPC7593 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:Line Card Access Switch
CPC7593BA 功能描述:固態(tài)繼電器-PCB安裝 10-pole SOIC LCAS RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負載電壓額定值:40 V 負載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT
CPC7593BATR 功能描述:固態(tài)繼電器-PCB安裝 10-pole SOIC LCAS, T/R RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負載電壓額定值:40 V 負載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT
CPC7593BB 功能描述:固態(tài)繼電器-PCB安裝 10-pole, no SCR, SOIC LCAS RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負載電壓額定值:40 V 負載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT
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