61089S Ver la hoja de datos (PDF) - Bourns, Inc

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componentes Descripción

Fabricante

61089S

DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS

Bourns, Inc 

TISP61089 Gated Protector Series

APPLICATIONS INFORMATION

Application Circuit (Continued)

protector. The TISP7xxxF3 protector has the same protection voltage for any terminal pair. This protector is used when the ring generator

configuration may be ground or battery-backed. For dedicated ground-backed ringing generators, the TISP3xxxF3 gives better protection as

its inter-conductor protection voltage is twice the conductor to ground value.

Relay contacts 3a and 3b connect the line conductors to the SLIC via the ’61089 protector. The protector gate reference voltage comes from

the SLIC negative supply (VBAT). A 220 nF gate capacitor sources the high gate current pulses caused by fast rising impulses.

SLIC

PROTEC TOR

SLIC

SLIC

PROTEC TOR

SLIC

IK

Th5

'61089 IG

C1

220 nF

VBAT

AI6XAHC

Figure 4. Negative Overvoltage Condition

IF

Th5

'61089

C1

220 nF

VBAT

AI6XAIC

Figure 5. Positive Overvoltage Condition

TIP

WIRE

OVER-

CURRENT

PROTEC TION

RSa

RING/ TEST

PROTEC TION

Th1

Th3

TEST

RELAY

S1a

RING

WIRE

RSb

Th2

TISP

3xxxF3

OR

S1b

7xxxF3

RING

RELAY

SLIC

RELAY

S3a

S2a

SLIC

PROTEC TOR

Th4

SLIC

Th5

S3b

'61089

S2b

C1

220 nF

VBAT

NOVEMBER 1995 - REVISED AUGUST 2002

Specifications are subject to change without notice.

TEST

EQUIP-

M ENT

RING

GENERATOR

Figure 6. Typical Application Circuit

AI6XAJC

7

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