AN2703

Parameters

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Peak gate current

This is the maximum peak current allowed through gate and cathode, defined

for a 20 µs pulse duration.

If the absolute rating is exceeded, the component may be damaged.

Average gate power dissipation

This is the maximum average power that can be dissipated by the gate junction.

If the absolute rating is exceeded, the component may be damaged.

Peak reverse gate voltage

This parameter is only defined for SCRs. It is the maximum reverse voltage than

can be applied across gate and cathode terminals, without risk of destruction of

the gate to cathode junction.

Peak positive gate voltage (with respect to the pin "COM")

This parameter is only defined for ACSs. It is the maximum voltage than can be

applied across gate and COM terminals without risk of destruction of the gate to

COM junction.

Table 2.

Electrical characteristics parameters

Parameter

Name and description

P

Average power dissipation

This is the average power dissipated by current conduction through the device

for one full cycle operation.

Triggering gate current

This is the current to apply between gate and cathode (or gate and electrode A1

for TRIAC) to turn-on the device. This parameter defines the sensitivity of the

component.

For a SCR, the gate current has always to be sunk by the gate.

polarities of A2, A1 and gate:

Triggering gate voltage

This is the voltage to apply across gate and cathode (or gate and electrode A1

for TRIAC) to reach the IGT current and then to trigger the device.

Non-triggering gate voltage

gate and electrode A1 for TRIAC) without causing undesired turn-on. This

parameter is specified, for the worst case scenario, at the maximum junction

temperature.

Table 1.

Absolute ratings parameters (continued)

Parameter

Name and description