Data Sheet
October 1997
L7591 Subscriber Line Interface Circuit Protector
Characteristic Curves
I
IPP
IP
VON
VF
VSGL
VR
V
IR
IH
IT
IPP
Figure 3.Typical Trip Characteristics of the SLIC Protector
Table 5. Symbols Definition
Symbol
Parameter
PNPN holding current
IH
IGT
IP
Gate trigger current out of pin VS
Pulse current
IPP
IRG
IT
Peak pulse current
Reverse leakage current VS to Tip or Ring
Tip or Ring current when PNPN is on
Reverse leakage current, Tip or Ring to Ground
Forward voltage, Tip or Ring to Ground
Peak forward voltage, Tip or Ring to Ground
Trip voltage, Tip or Ring to VS
IR
VF
VFP
VT
VSGL
VON
VR
Dynamic trip voltage, Tip or Ring to VS
PNPN on voltage at IT
Tip or Ring voltage when PNPN is off
Off-state capacitance, Tip or Ring to Ground
Coff
4
Lucent Technologies Inc.
AGERE [ AGERE SYSTEMS ]
