TCM1030DR 查看數據表（PDF） - Power Innovations Ltd

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TCM1030DR

DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS

Power Innovations Ltd 

TISP61060D, TISP61060P

DUAL FORWARD-CONDUCTING P-GATE THYRISTORS

PROGRAMMABLE OVERVOLTAGE PROTECTORS

SEPTEMBER 1995 - REVISED SEPTEMBER 1997

CROSS-REFERENCE FOR TISP61060 AND LB1201AB

TISP61060 PARAMETER

RATINGS & CHARACTERISTICS

Non-repetitive peak on-state pulse current

Non-repetitive peak on-state current

On-state voltage

Switching current

Breakover voltage

Maximum continuous on-state current

Maximum continuous forward current

Gate voltage, (VGG is gate supply voltage referenced

to the A terminal)

Off-state capacitance

TERMINALS

Cathode 1

Cathode 2

Anode

Gate

DATA SHEET ALTERNATIVE

ALTERNATIVE PARAMETER

SYMBOL

SYMBOL

LB1201AB

ITSP

ITSM

VT

IS

V(BO)

ITM

IFM

IP

IP

VON

It

VT

IC

IC

Pulse current

RMS pulse current, 60 Hz

On-state voltage

Trip current

Trip voltage

On-state current

On-state current

VG

VS

Supply voltage

CO

COFF

Off-state capacitance

LB1201AB

K1

Tip

Tip

K2

Ring

Ring

A

GND

Ground

G

VS

Supply voltage

electrical characteristics

APPLICATIONS INFORMATION

The electrical characteristics of a thyristor overvoltage protector are strongly dependent on junction

temperature, TJ. Hence a characteristic value will depend on the junction temperature at the instant of

measurement. The values given in this data sheet were measured on commercial testers, which generally

minimise the temperature rise caused by testing.

gated protector evolution and characteristics

This section covers three topics. Firstly, it is explained why gated protectors are needed. Second, the

performance of the original IC (integrated circuit) based version is described. Third, the performance

improvements given by the TISP61060 are detailed.

purpose of gated protectors

Fixed voltage thyristor overvoltage protectors have been used since the early 1980s to protect monolithic

SLICs (Subscriber Line Interface Circuits) against overvoltages on the telephone line caused by lightning, a.c.

power contact and induction. As the SLIC was usually powered from a fixed voltage negative supply rail, the

limiting voltage of the protector could also be a fixed value. The TISP1072F3 is a typical example of a fixed

voltage SLIC protector.

SLICs have become more sophisticated. To minimise power consumption, some designs automatically adjust

the supply voltage, VBAT, to a value that is just sufficient to drive the required line current. For short lines the

supply voltage would be set low, but for long lines, a higher supply voltage would be generated to drive

sufficient line current. The optimum protection for this type of SLIC would be given by a protection voltage

which tracks the SLIC supply voltage. This can be achieved by connecting the protection thyristor gate to the

SLIC supply, Figure 2. This gated (programmable) protection arrangement minimises the voltage stress on

the SLIC, no matter what value of supply voltage.

PRODUCT INFORMATION

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