CPC7592
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
-
-
2.1
5
3.0
-
F
V
A
Forward Voltage drop, Apply dynamic current limit of break
surge current switches
Protection SCR (CPC7592xA and CPC7592xC)
V
F
Surge current
-
-
-
-
-
*
-
60
(CPC7592xA)
70
(CPC7592xC)
SCR activates, +25° C
Trigger current:
Current into V pin.
I
mA
TRIG
BAT
35
(CPC7592xA)
40
(CPC7592xC)
SCR activates, +85° C
100
(CPC7592xA)
135
(CPC7592xC)
SCR remains active, +25° C
-
Hold current: Current
through protection SCR
I
-
mA
HOLD
60
70
(CPC7592xA) (CPC7592xA)
110 115
(CPC7592xC) (CPC7592xC)
SCR remains active, +85° C
V
or
TBAT
§
V
-4
V
-2
Gate trigger voltage
Reverse leakage current
On-state voltage
-
V
μA
V
I
= I
GATE TRIGGER
BAT
BAT
V
I
RBAT
V
= -48 V
-
-
1.0
BAT
VBAT
0.5 A, t = 0.5 μs
2.0 A, t = 0.5 μs
V
or
-3
-5
TBAT
-
-
V
RBAT
Temperature Shutdown Specifications
Shutdown activation
temperature
T
T
110
10
125
-
150
25
°C
°C
Not production tested - limits are
guaranteed by design and Quality
Control sampling audits.
TSD_on
Shutdown circuit
hysteresis
TSD_off
*Passes GR1089 and ITU-T K.20 with appropriate secondary protection in place.
§
BAT
V
must be capable of sourcing I
for the internal SCR to activate.
TRIGGER
R03
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