CPC7582_1 Datasheet, PDF (10/19 Pages) Clare, Inc. – Line Card Access Switch

CPC7582
1.8 Protection Circuitry Electrical Specifications
Parameter
Conditions
Symbol
Minimum
Typical
Maximum Unit
Parameters Related to the Diodes in the Diode Bridge
Voltage drop at
continuous current
(50/60 Hz)
Apply ± dc current limit of break Forward
switches
Voltage
-
Voltage drop at surge Apply ± dynamic current limit of Forward
current
break switches
Voltage
-
Parameters Related to the Protection SCR
2.1
3
V
5
-
Surge current
-
-
-
-
*
A
Trigger current
Hold current
T=+25°C
T=+85°C
T=+25°C
T=+85°C
I_TRIG
-
60 (CPC7582xA, xB)
70 (CPC7582xC)
-
-
35 (CPC7582xA, xB)
40 (CPC7582xC)
-
mA
-
100 (CPC7582xA, xB)
135 (CPC7582xC)
-
I_{HOLD 60 (CPC7582xA, xB) 70 (CPC7582xA, xB)}
110 (CPC7582xC) 115 (CPC7582xC)
-
Gate trigger voltage I_GATE = I_TRIGGER**
V_TBAT or
V_RBAT
V_BAT -4
-
V_BAT -2
V
Reverse leakage current V_BAT = -48 V
I_VBAT
-
-
1.0
μA
On-state voltage
0.5 A, t = 0.5 μs
2.0 A, t = 0.5 μs
V_TBAT or
V_RBAT
-
V_TBAT or
V_RBAT
-
-3
-
V
-5
-
V
*Passes GR1089 and ITU-T K.20 with appropriate secondary protection in place.
**V_BAT must be capable of sourcing I_TRIGGER for the internal SCR to activate.
1.9 CPC7582xA/B Truth Table
State
IN_RINGING
IN_TEST
LATCH
T_SD
Talk
0
0
Test
Ringing
All Off
0
1
0
1 or
1
0
Floating¹
1
1
Latched
X
X
1
All off
X
X
X
0²
1_{If TSD is tied high, thermal shutdown is disabled. If TSD is left floating, the thermal shutdown mechanism functions normally.}
2_{Forcing TSD to ground overrides the logic input pins and forces an all off state.}
Break
Switches
On
Off
Off
Off
Off
Ringing
Switches
Off
Off
On
Off
Unchanged
Off
Test
Switches
Off
On
Off
Off
Off
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