TRANSIENT-VOLTAGE SUPPRESSORS. TCM1060 Datasheet

TCM1060 SUPPRESSORS. Datasheet pdf. Equivalent


etcTI TCM1060
TCM1030, TCM1060
DUAL TRANSIENT-VOLTAGE SUPPRESSORS
Meets or Exceeds Bell Standard LSSGR
Requirements
Externally Controlled Negative Firing
Voltage . . . – 70 V Max
Wide, Accurately Controlled, Negative
Firing Voltage Range . . . – 5 V to – 65 V
Surge Current (see Note 1)
TCM1030
10/1000 16 A
10/160
25 A
2/10 35 A
TCM1060
30 A
45 A
50 A
High Holding Current
TCM1030 . . . 100 mA Min
TCM1060 . . . 150 mA Min
SCTS040 – D3273, JUNE 1989–REVISED DECEMBER 1990
D OR P PACKAGE
(T0P VIEW)
TIP
VS
NC
RING
1
2
3
4
8 TIP
7 GND
6 GND
5 RING
NC–No internal connection
The D package is available taped and reeled. Add R suffix
(i.e., TCM1030DR).
description
The TCM1030 and TCM1060 dual transient-voltage suppressors are designed specifically for telephone line
card protection against lightning and 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 subscriber line interface circuit
(SLIC). 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 TCM1060 to 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 VS cause
the SCR’s Q1 and Q2 to crowbar. The high holding current prevents dc latchup as the transient subsides.
The TCM1030 and TCM1060 are characterized for operation from – 40°C to 85°C.
functional block diagram
1
TIP
8
TIP
2
VS
4
RING
Trip
Circuit
Trip
Circuit
D1
Q1
7
GND
6 GND
Q2
D2
5 RING
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.
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.
Copyright © 1991, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1


TCM1060 Datasheet
Recommendation TCM1060 Datasheet
Part TCM1060
Description DUAL TRANSIENT-VOLTAGE SUPPRESSORS
Feature TCM1060; TCM1030, TCM1060 DUAL TRANSIENT-VOLTAGE SUPPRESSORS • Meets or Exceeds Bell Standard LSSGR Require.
Manufacture etcTI
Datasheet
Download TCM1060 Datasheet




etcTI TCM1060
TCM1030, TCM1060
DUAL TRANSIENT-VOLTAGE SUPPRESSORS
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
TCM1060 nonrepetitive peak surge current (see Note 1): 10/1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 30 A
10/160 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 45 A
2/10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 A
Nonrepetitive peak surge current, tw = 10 ms, half sinewave (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . 5 A
Continuous 60-Hz sinewave at 1 A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 s
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 85°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or P package . . . . . . . . . . . . . . . . . 260°C
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.
PACKAGE
D
P
DISSIPATION RATING TABLE
TA 25°C
POWER RATING
725 mW
1000 mW
OPERATING FACTOR
ABOVE TA = 25°C
5.8 mW/°C
8.0 mW/°C
TA = 85°C
POWER RATING
377 mW
520 mW
electrical characteristics over operating free-air temperature range (unless otherwise noted)
PARAMETER
VCF
Forward clamping voltage (diode
forward voltage) (see Note 3)
Reverse clamping voltage (SCR
VC on-state voltage) (see Note 3)
Itrip Trip current (see Note 4)
IH Holding current
Vtrip Trip voltage
ID Standby current
VOS Transient overshoot voltage
TEST CONDITIONS
IFM = 1-A transient
IFM = 10-A transient
IFM = 16-A transient
IFM = 30-A transient
ITM = 1-A transient
ITM = 10-A transient
ITM = 16-A transient
ITM = 30-A transient
VS = – 50 V
VS = – 50 V
VS = – 50 V, I = trip current
VS = – 65 V, I = trip current
TIP and RING at – 85 V or GND,
VS = – 85 V
VS = – 50 V, tr = 10 ns
TIP and RING at – 50 V
TCM1030
MIN TYP† MAX
1.2 2
2.5 4
45
1.2 2
2.5 4
45
– 100
– 100
– 50
– 65
– 325
– 55
– 70
TCM1060
MIN TYP† MAX
1.2 2
24
2.5 5
3.1 5
1.2 2
2.5 4
35
4.8 7
– 100
– 325
– 150
– 50 – 55
– 65 – 70
±5
2.5
25
±5
2.5
25
UNIT
V
V
mA
mA
V
µA
V
Coff Off-state capacitance
Critical rate of rise of off-state
TIP and RING at GND
VS open
50 50 pF
–1 –1
dv/dt voltage (see Note 5)
† All typical values are at TA = 25°C.
VS = – 50 V
– 1 – 1 kV/µs
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 the VS pin connected to the
TIP or RING pin being measured.
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265



etcTI TCM1060
TCM1030, TCM1060
DUAL TRANSIENT-VOLTAGE SUPPRESSORS
TYPICAL CHARACTERISTICS
0.5
VS = –48 V
0.4 TA = 25 °C
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
–50 –40 –30 –20 –10 0 10 20 30 40 50
Voltage, TIP or RING to GND – V
Figure 1. Voltage-Current Characteristics (TIP and RING to GND)
APPLICATION INFORMATION
The trip voltage represents the most negative level of stress applied to the system. Positive transients are
clamped by diodes D1 and D2. When a negative transient is applied, current flows from the VS input to the TIP
or RING terminals where the transient is applied. When the current through TIP or RING reaches the pulse-trip
current, the SCR turns on and shorts the TIP or RING terminal to the GND terminal. The majority of the transient
energy is dissipated in the external resistor (nominally 100 and 50 for TCM1030 and TCM1060,
respectively). Current into the VS terminal ceases when the SCR turns on. When the energy of the transient has
been dissipated so that the current into the TIP or RING terminal due to the transient plus the battery feed supply
is less then the holding current, the SCR resets.
If the lead to the VS terminal is inductive, it may be necessary to connect a capacitor between VS and GND. The
capacitor must be placed as close as possible to the VS terminal to avoid overshoot in the firing voltage caused
by fast rise-time transients.
To avoid dc latchup after the SCR has been fired, the current must be less than the holding current, IH. To prevent
this from happening, the line feed current must be limited to the following conditions:
*VTP
) tRline
VRP
2Rp
IH
where VTP and VRP are the voltages on the TIP and RING terminals, respectively, of the TCM1030 or TCM1060.
Induced ac currents into TIP or RING (e.g., power-line inductive coupling) must be less than the trip current to
prevent the SCR from firing.
Line short circuits to external power sources can damage the suppressor due to excessive power dissipation.
Conventional protection techniques, such as fuses or PTC thermistors, should be used to eliminate or reduce
the fault current.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3





@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)