2SC0108T2A0-17 datasheet(5/32 Pages) ETC2

Il numero della parte	2SC0108T2A0-17

Spiegazioni elettronici	DESCRIPTION AND APPLICATION MANUAL FOR SCALE DRIVERS

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Description and Application Manual

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Page 5

The VL/Reset pin is used to define the logic level and to erase the error memory. The

circuits for 5V and 15V logic levels are shown in Fig. 11. There’s more on this topic

from page 23 onwards.

Signal inputs and status outputs

The PWM signals of the control electronics are applied to inputs A and B. Depending

on the selected mode, these inputs have a different function: in direct mode, input A is

assigned directly to channel 1, whereas input B controls channel 2.

In half-bridge mode, the PWM signal is applied to input A whereas input B carries the

release signal for both channels. There’s more on this topic on page 25.

The status outputs are “open collector” outputs and can thus be simply matched to all

logic levels and families. The outputs lead simply to the logic and are connected to the

logic supply via a pull-up resistor. There’s more on this topic on page 25.

Connecting the IGBTs

The auxiliary emitter (emitter control terminal) is connected to output “Ex” (where “x”

stands for the number of the drive channel in multi-channel drivers). In the same way,

the gate is connected to output “Gx”; but via a gate resistor or a gate resistor

network. There’s more on this topic from page 27 onwards.

The collector sense terminal “Cx” is connected via a diode to the collector of the IGBT.

On this point, read the hints from page 28 onwards and any additional hints in the

data sheet of the SCALE driver used.

Defining the turn-off threshold

The turn-off threshold and the response time are defined by a resistor connected

between the terminal “Rthx” and the emitter terminal “Ex”. An explanation of these

terms is found from page 17 onwards. A table or a diagram of the turn-off threshold

and the response time can be obtained from the data sheet of the relevant SCALE

driver.

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