Texas Instruments TCM1050P, TCM1050DR, TCM1030P, TCM1050D, TCM1030DR Datasheet

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TCM1030, TCM1050

DUAL TRANSIENT-VOLTAGE SUPPRESSORS

SCTS040B – JUNE 1989 – REVISED JUNE 1997

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Meet or Exceed Bell Standard LSSGR Requirements

Externally-Controlled Negative Firing Voltage ...–90 V Max

Accurately Controlled, Wide Negative Firing Voltage Range...–5 V to –85 V

Positive Surge Current (see Note 1):

TCM1030 TCM1050 10/1000 16 A 30 A 10/160 25 A 45 A 2/10 35 A 50 A

Negative Surge Current (see Note 1):

TCM1030 TCM1050 10/1000 –16 A –25 A 10/160 –25 A –29 A 2/10 –35 A –36 A

High Holding Current – TCM1030...100 mA Min – TCM1050...150 mA Min

description

The TCM1030 and TCM1050 dual transient-voltage suppressors are designed specifically for telephone line card protection against lightning and transients (voltage transients) induced by ac lines. One of the TIP terminals (pin 1 or 8) and one of the RING terminals (pin 4 or 5) are connected to the tip and ring circuits of a SLIC (subscriber-line interface circuit). The battery feed connections between the SLIC and the subscriber line are from the remaining TIP (pin 1 or 8) and RING (pin 4 or 5) through the TCM1030 or the TCM1050 to the tip and ring lines. Transients are suppressed between tip and ground, and ring and ground.

Positive transients are clamped by diodes D1 and D2. Negative transients that are more negative than V

cause the SCRs, Q1 and Q2, to crowbar. The high holding current of the SCRs prevent dc latchup as the transient subsides.

The TCM1030 and TCM1050 are characterized for operation from –40°C to 85°C.

NOTE 1: The notation 10/1000 refers to a waveshape having tr = 10 µs and tw = 1000 µs ending at 50% of the peak value. The notation 10/160

is tr = 10 µs and tw = 160 µs. The notation 2/10 is tr = 2 µs and tw = 10 µs.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

1 2 3 4

8 7 6 5

TIP

RING

TIP GND GND RING

D OR P PACKAGE

(TOP VIEW)

NC – No internal connection The D package is available taped and reeled. Add R suffix (i.e., TCM1030DR).

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

TCM1030, TCM1050 DUAL TRANSIENT-VOLTAGE SUPPRESSORS

SCTS040B – JUNE 1989 – REVISED JUNE 1997

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

functional block diagram

TIP

GND

RING

Trip

Circuit

Trip

Circuit

TIP

RING

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

TCM1030 nonrepetitive peak surge current (see Note 1): 10/1000 ±16 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10/160 ±25 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2/10 ±35 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TCM1050 nonrepetitive peak positive surge current: 10/1000 30 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(see Note 1) 10/160 45 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2/10 50 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TCM1050 nonrepetitive peak negative surge current: 10/1000 –25 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(see Note 1) 10/160 –29 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2/10 –36 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Nonrepetitive peak surge current, t

= 10 ms, half sinewave (see Note 2) 5 A. . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous 60-Hz sinewave at 1 A 2 s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T

–40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or P package 260°C. . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1 The notation 10/1000 refers to a waveshape having tr = 10 µs and tw = 1000 µs ending at 50% of the peak value. The notation 10/160

is tr = 10 µs and tw = 160 µs. The notation 2/10 is tr = 2 µs and tw = 10 µs.

2. This value applies when the case temperature is at or below 85°C. The surge current may be repeated after the device has returned to thermal equilibrium.

DISSIPATION RATING TABLE

≤ 25°C OPERATING FACTOR T

= 85°C

PACKAGE

POWER RATING ABOVE TA = 25°C

POWER RATING

D 725 mW 5.8 mW/°C 377 mW P 1000 mW 8.0 mW/°C 520 mW

TCM1030, TCM1050

DUAL TRANSIENT-VOLTAGE SUPPRESSORS

SCTS040B – JUNE 1989 – REVISED JUNE 1997

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics over operating free-air temperature range (unless otherwise noted)

TCM1030 TCM1050

PARAMETER

TEST CONDITIONS

MIN TYP†MAX MIN TYP†MAX

UNIT

IFM = 1-A transient 1.2 2 1.2 2

Forward clamping voltage

IFM = 10-A transient 2.5 4 2 4

(diode f

orward voltage) (see

Not

e 3)

IFM = 16-A transient 4 5 2.5 5

Note 3)

IFM = 30-A transient — — — 3.1 5 ITM = 1-A transient –1.2 –2 –1.2 –2

Reverse clamping voltage

ITM = 10-A transient –2.5 –4 –2.5 –4

C(R)

(SCR

on-state voltage) (see

Not

e 3)

ITM = 16-A transient –4 –5 –3 –5

Note 3)

ITM = 30-A transient — — — –4.8 –7

I(trip)

Trip current (see Note 4) VS = –50 V –100 –325 –100 –325 mA

Holding current VS = –50 V –100 –150 mA

VS = –50 V , I = trip current –50 –55 –50 –55

I(trip)

Trip voltage

VS = –65 V ,

I = trip current –65 –70 –65 –70

()

VS = –85 V , I = trip current — — — –85 –90

I(stby)

Standby current

TIP and RING at –85 V or GND, VS = –85 V

±5 ±5 µA

Transient overshoot voltage VS = –50 V , tr = 10 ns 2.5 2.5 V Off-state (high impedance)

TIP and RING at –50 V 25 25

off

(g )

capacitance

TIP and RING at GND

50 50

dv/dt

Critical rate of rise of off-state voltage (see Note 5)

VS open, VS = –50 V –1 –1 kV/µs

†

All typical values are at TA = 25°C.

NOTES: 3. The current flows through one TIP (or RING) terminal and one of the GND terminals. The voltage is measured between the other

TIP (or RING) terminal and the other GND terminal. Measurement time ≤ 1 ms.

4. The negative value of trip current refers to the current flowing out of TIP or RING on the line side that is sufficient in magnitude to trigger the SCRs. Measurement time ≤ 1 ns.

5. The critical dv/dt is measured using a linear rate of rise with the maximum voltage limited to –50 V with VS connected to TIP or RING being measured.

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