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VE S CO
AV R M
AI SIO PL
LA N IA
BL S NT
E
TISP6NTP2B
QUAD FORWARD-CONDUCTING BUFFERED P-GATE THYRISTORS
*R
TISP6NTP2B Programmable Protector
Overvoltage Protection for ISDN DC Feeds:
鈥?Supply Voltages Down to -120 V
鈥?Low 5 mA max. Gate Triggering Current
鈥?High 150 mA min. (25
擄C)
Holding Current
Rated for Common Impulse Waveforms
D Package (Top View)
K1
G1,G2
G3,G4
I
TSP
A
20
25
60
70
1
2
3
4
8
7
6
5
K2
A
A
K4
MDRXAM
Voltage Impulse
Form
10/1000
碌s
10/700
碌s
1.2/50
碌s
2/10
碌s
Current Impulse
Shape
10/1000
碌s
5/310
碌s
8/20
碌s
2/10
碌s
K3
Device Symbol
K1
.............................................. UL Recognized Component
G1,G2
Description
The TISP6NTP2B has an array of four buffered P-gate forward
conducting thyristors with twin commoned gates and a common
anode connection. Each thyristor cathode has a separate
terminal connection. An antiparallel anode-cathode diode is
connected across each thyristor. The buffer transistors reduce
the gate supply current.
In use, the cathodes of an TISP6NTP2B thyristors are connected
to the four conductors to be protected (see Figure 2 and Figure
3). Each gate is connected to the appropriate negative voltage
feed. The anode of the TISP6NTP2B is connected to the system
common. The TISP6NTP2B is in an 8-pin small-outline surface
mount package.
Positive overvoltages are clipped to common by forward
conduction of the TISP6NTP2B antiparallel diode. In Figure 2, a
negative overvoltage draws a current through the 6.8
鈩?/div>
resistor
and the voltage developed triggers the thyristor on. In Figure 3,
negative overvoltages are initially clipped close to the negative
supply by emitter follower action of the TISP6NTP2B buffer
transistor. If sufficient clipping current flows, the TISP6NTP2B
thyristor will regenerate and switch into a low voltage on-state
condition. As the negative overvoltage subsides, the high
holding current of the TISP6NTP2B prevents d.c. latchup.
K2
A
A
K3
G3,G4
K4
SDRXAI
How To Order
For Standard
Termination Finish
Order As
For Lead Free
Termination Finish
Order As
TISP6NTP2BDR-S
TISP6NTP2BD-S
Carrier
Tape and Reel TISP6NTP2BDR
TISP6NTP2B D, Small-Outline
Tube
TISP6NTP2BD
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
JUNE 1998 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Device
Package
1
2
3
4
5
6
7
8
