LUCL8574DP-D AGERE [Agere Systems], LUCL8574DP-D Datasheet - Page 9

• Manufacturer Part Number: LUCL8574DP-D
• Description: L8574D Resistive Subscriber Line Interface Circuit(SLIC), Ring Relay,and Protector(SRP)for Long Loop and TR-57 Applications
• Manufacturer: AGERE [Agere Systems]

Data Sheet
October 1998
Lucent Technologies Inc.
Electrical Characteristics
Fault Protection
Pins PT, PR, and V
Pins PT, PR, and V
the SCR on PR or V
while the SCR is conducting current above its hold current. After the SCR releases, the L8574 automatically
switches back to the operating state prior to the SCR trigger.
Table 5. Electrical Characteristics of Pins PT, PR, and V
1. This parameter is not tested in production. It is guaranteed by design and device characterization.
2. Applied voltage is 50 Vpp square wave at 100 Hz to measure dV/dt sensitivity.
PT and PR:
V
Trigger Current (if from a power supply—PT, PR, and V
dV/dt Sensitivity
SCR Trigger Voltage Pin PT:
SCR Trigger Voltage Pin PR:
SCR Hold Current (positive and negative)
SCR Hold Current (positive and negative)
Surge Current
Surge Current
SCR Trigger Voltage:
BF
Lightning—10 s x 1000 s
Lightning—2 s x 10 s
Power Cross—60 Hz, 50 ms
Power Cross—60 Hz, 1 s
Power Cross—60 Hz, 15 min.
Positive
Negative
dc Transient Response
Positive
Negative
Lightning—10 s x 1000 s
Lightning—2 s x 10 s
Power Cross—60 Hz, 50 ms
Power Cross—60 Hz, 1 s
Power Cross—60 Hz, 15 min.
Positive
Negative
:
1
1
:
:
1, 2
BF
BF
BF
(PT, PR, and V
are protected by SCRs which clamp surge currents (both positive and negative) to FGND. If
triggers due to a negative surge, the L8574 automatically switches to the disconnect state
Parameter
Relay, and Protector (SRP) for Long Loop and TR-57 Applications
L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring
BF
(continued)
)
BF
)
BF
V
CCA
–220
–220
Min
–25
–25
150
150
—
—
—
—
—
10
—
—
—
—
—
10
—
—
– 2
Typ
500
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
V
CCA
–320
Max
600
200
–35
–55
280
320
800
150
280
50
250
—
—
—
2.5
5.5
13
3
1
+ 4
mArms
mArms
mArms
mArms
mArms
Arms
V/ s
Unit
mA
mA
A
A
V
V
V
V
V
A
A
V
V
A
9