CPC7695 Datasheet, PDF (14/25 Pages) Clare, Inc. – Line Card Access Switch

INTEGRATED CIRCUITS DIVISION
CPC7695
1.9 Protection Circuitry Electrical Specifications
Parameter
Conditions
Symbol Minimum Typical Maximum
Unit
Protection Diode Bridge
Forward Voltage drop,
continuous current
(50/60 Hz)
Apply ± DC current limit of break
switches
V_F
2.8
3.5
-
V
Forward Voltage drop, Apply ± dynamic current limit of break
surge current
switches
5
-
Protection SCR (CPC7695xA and CPC7695xC)
Surge current
-
-
-
-
*
A
Trigger current:
SCR activates, +25°C
Current into V_BAT pin. _{SCR activates, +85°C}
150
I_TRIG
-
80
-
mA
Hold current: Current ^{SCR remains active, +25°C}
through protection SCR _{SCR remains active, +85°C}
-
220
I_HOLD
110
145
-
mA
Gate trigger voltage I_GATE = I_TRIGGER§
V_TBAT or
V_RBAT
V_BAT -4
-
V_BAT -2
V
Reverse leakage current V_BAT = -48V
I_VBAT
-
-
1.0
A
On-state voltage
0.5A, t = 0.5 s
2.0A, t = 0.5 s
V_TBAT or
V_RBAT
-
-3
-5
-
V
Temperature Shutdown Specifications
Shutdown activation
temperature
Not production tested - limits are
T_{TSD_on}
110
125
150
°C
guaranteed by design and Quality
Shutdown circuit
hysteresis
Control sampling audits.
T_{TSD_off}
10
-
25
°C
*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.}
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