CPC7583_12 Datasheet, PDF (12/19 Pages) IXYS Corporation – Line Card Access Switch

INTEGRATED CIRCUITS DIVISION
CPC7583
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
switches
Forward
Voltage
-
2.8
3.5
V
Voltage drop at surge Apply ± dynamic current limit of break
current
switches
Forward
Voltage
-
5
-
Parameters Related to the Protection SCR (CPC7583xA and CPC7583xC)
Surge current
-
-
-
*
A
Trigger current
Hold current
+25° C
+85° C
+25° C
+85° C
I_TRIG
200
-
I_TRIG
-
120
-
mA
I_HOLD
265
-
I_HOLD
100
170
-
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
A
On-state voltage
0.5 A, t = 0.5 s
2.0 A, t = 0.5 s
V_TBAT or
-
-3
-
V
V_RBAT
-5
-
V
*Passes GR1089 and ITU-T K.20 with appropriate secondary protection in place.
§_{VBAT must be capable of sourcing ITRIGGER for the internal SCR to activate.}
1.9 Truth Tables
1.9.1 Truth Table for CPC7583xA and CPC7583xB
State IN_RINGING IN_TESTIN IN_TESTOUT Latch
T_SD
TEST_IN
Switches
Break
Switches
Ringing
Test
Switches
Ringing
Switches
TEST_OUT
Switches
Talk
0
0
0
Off
On
Off
Off
Off
TESTout
0
0
1
Off
Off
Off
Off
On
TESTin
0
1
0
On
Off
Off
Off
Off
Simultaneous
TESTin and
0
1
1
0
On
Off
Off
Off
On
TESTout
1 or
Ringing
1
0
0
Floating ¹
Off
Off
Off
On
Off
Ringing
Generator
1
1
0
Off
Off
On
Off
Off
Test
Latched
X
X
X
1
Unchanged Unchanged Unchanged Unchanged Unchanged
1
0
1
0
Off
Off
Off
Off
Off
All Off
1
1
1
0
Off
Off
Off
Off
Off
X
X
X
X
0²
Off
Off
Off
Off
Off
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.}
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