TISPPBL1DR Bourns Inc., TISPPBL1DR Datasheet - Page 12

• Manufacturer Part Number: TISPPBL1DR
• Description: Sidacs SURGE SUP 8-SOP
• Manufacturer: Bourns Inc.

Specifications of TISPPBL1DR

• Mounting Style: SMD/SMT
• Package / Case: SO-8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TISPPBL1D, TISPPBL1P, TISPPBL2D, TISPPBL2P
DUAL FORWARD-CONDUCTING P-GATE THYRISTORS
FOR ERICSSON COMPONENTS SLICS
normal operation
maximum TIPX and RINGX terminal ratings
protection requirements to cover all SLICs
TISPPBLx voltage limiting performance
application circuit
12
-90 V rating of the TISPPBLx gate-cathode (V
normal operation after the TISPPBLx has switched on, the minimum switch-off current (holding current I
needed is equal to the maximum SLIC short circuit current to ground (d.c. line current together with the
maximum longitudinal current). The first page of this data sheet has a list of the appropriate TISPPBLx
protectors that can be used with each SLIC.
The TIPX or RINGX voltage withstand levels for the current range of Ericsson SLICs falls into three groups,
see Figure 15. The first group, headed by the PBL 3762A/2 SLIC, has a positive polarity d.c. withstand of
+2 V. For 10 ms, the output can withstand a voltage of +5 V. For 1 µs, the output can withstand a voltage of
+10 V. For 250 ns, the output is able to withstand a voltage of +15 V.
In the negative polarity, the output can withstand V
voltage of V
able to withstand a voltage of V
The second group, headed by the PBL 3766 SLIC, has a positive polarity d.c. withstand of +0.5 V. For 10 ms,
1 µs and 250 ns the withstand voltage is the same as the PBL 3762A/2 group. In the negative polarity the
withstand voltage of the PBL 3766 group is the same as the PBL 3762A/2 group.
The third group, headed by the PBL 386 20/2 SLIC, has the same positive polarity withstand as the
PBL 3762A/2 group. In the negative polarity, the output can withstand -80 V continuously. For 10 ms, the
output can withstand a voltage of V
250 ns, the output is able to withstand a voltage of V
To protect all SLICs, the TISPPBLx protector must limit the voltage to the lowest withstand levels of the three
SLIC groups shown in Figure 15. Figure 16 shows that this will be the positive polarity rating of the PBL 3766
group and the negative rating of the PBL 386 20/2 group.
This value does not exceed any part of the SLIC minimum negative voltage ratings. Any negative voltage
disturbance in the V
isolation diode D1. So a negative going change in V
voltage stress relative to V
the data sheet rating. In the positive polarity the TISPPBLx limits the maximum voltage to 8 V in a 1 µs period
and between 1 V and 5 V for a 10 ms period. These values do not exceed any of the SLIC minimum positive
voltage ratings.
Depending on the SLIC type, the maximum SLIC supply voltage rating (V
The withstand levels of a SLIC line drive amplifier TIPX and RINGX can be expressed in terms of maximum
voltage for certain time periods. The negative voltage rating can be specified in two ways; relative to ground or
relative to the SLIC negative supply voltage (V
Figure 17 shows how the TISPPBLx protection voltages compare to the minimum voltage withstands of
Figure 16. The two shaded areas represent the positive and negative maximum limiting voltage levels of the
TISPPBLx from Figure 2. The isolation diode voltage drop displaces the TISPPBLx negative limiting voltage
1 µs, -20 V pulse area by -0.7 V from V
Figure 18 shows a typical TISPPBLx SLIC card protection circuit. The incoming line conductors, R and T,
connect to the relay matrix via the series over-current protection. Fusible resistors, fuses and positive
Bat
- 20 V. For 1 µs, the output can withstand a voltage of V
B
supply caused by TISPPBLx gate current will be tracked in V
Bat
. However, the absolute value of V
Bat
- 70 V.
Bat
- 10 V. For 1 µs, the output can withstand a voltage of V
Bat
. So the actual negative limiting voltage is -20.7 V relative to V
Bat
GKRM
).
Bat
Bat
B
) exceeds the highest SLIC voltage rating. To restore
does not substantially increase the TIPX and RINGX
- 35 V.
continuously. For 10 ms, the output can withstand a
P R O D U C T
.
Bat
with respect to ground must be kept within
Specifications are subject to change without notice.
Bat
Bat
AUGUST 1997 - REVISED AUGUST 2002
) will be -70 V, -80 V or -85 V. The
- 40 V. For 250 ns, the output is
I N F O R M A T I O N
Bat
by conduction of the
Bat
- 25 V. For
Bat
H
)
.