EL3053(P5)-V Просмотр технического описания (PDF) - EVERLIGHT

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EL3053(P5)-V

5 PIN DIP RANDOM-PHASE TRIAC DRIVER PHOTOCOUPLER

EVERLIGHT 

DATASHEET

5PIN DIP RANDOM-PHASE TRIAC DRIVER PHOTO COUPLER

EL301X(P5), EL302X(P5), EL305X(P5) series

Figure 8. Static dv/dt Test Circuit & Waveform

D.U.T.

T1

10 kΩ

A

K

VT

CTEST

RTEST

50 Ω

0.632 x VPEAK

T2

Applied VT

Waveform

RC

High Voltage

Pulse Source

VPEAK

0

Measurement Method

The high voltage pulse is set to the required VPEAK value and applied to the D.U.T. output side through the RC circuit

above. LED current is not applied. The waveform VT is monitored using a x100 scope probe. By varying RTEST,

the dv/dt (slope) is increased, until the D.U.T. is observed to trigger (waveform collapses). The dv/dt is then

decreased until the D.U.T. stops triggering. At this point, RC is recorded and the dv/dt calculated.

dv/dt = 0.632 x VPEAK

RC

For example, VPEAK = 400V for EL302X series. The dv/dt value is calculated as follows:

dv/dt = 0.632 x 400

RC

= 252.8

RC

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