IEC 60747-5-6:2021

IEC 60747-5-6 ®
Edition 2.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Semiconductor devices –
Part 5-6: Optoelectronic devices – Light emitting diodes

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IEC 60747-5-6 ®
Edition 2.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Semiconductor devices –
Part 5-6: Optoelectronic devices – Light emitting diodes
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.080.99 ISBN 978-2-8322-4478-4

– 2 – IEC 60747-5-6:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviations . 11
3.1 General terms and definitions . 11
3.2 Terms and definitions relating to the measurement of the quantity of
radiation . 14
3.3 Terms and definitions relating to the measurement of the photometric
quantity . 18
3.4 Terms and definitions relating to the measurement of the thermal quantity . 23
3.5 Abbreviations . 24
4 Absolute maximum ratings . 11
5 Electrical and optical characteristics . 26
6 Measuring method . 27
6.1 Basic requirements . 27
6.1.1 Measuring conditions . 27
6.1.2 Measuring instruments and equipment . 28
6.1.3 Essential requirements . 29
6.1.4 General precautions . 30
6.2 Forward voltage (V ) measurement . 30
F
6.2.1 Purpose . 30
6.2.2 Circuit diagram . 30
6.2.3 Requirements . 30
6.2.4 Measurement procedure . 32
6.2.5 Precautions to be observed . 32
6.2.6 Specified conditions . 32
6.3 Reverse voltage (V ) measurement . 32
R
6.3.1 Purpose . 32
6.3.2 Circuit diagram . 32
6.3.3 Measurement procedure . 32
6.3.4 Precautions to be observed . 33
6.3.5 Specified conditions . 33
6.4 Differential resistance (r ) measurement . 33
f
6.4.1 Purpose . 33
6.4.2 Circuit diagram . 33
6.4.3 Requirements . 33
6.4.4 Measurement procedure . 33
6.4.5 Precautions to be observed . 34
6.4.6 Specified conditions . 34
6.5 Reverse current (I ) measurement . 34
R
6.5.1 Purpose . 34
6.5.2 Circuit diagram . 34
6.5.3 Provisions . 35
6.5.4 Measurement procedure . 35
6.5.5 Precautions to be observed . 35

6.5.6 Specified conditions . 35
6.6 Measurement of capacitance between terminals (C ). 35
t
6.6.1 General . 35
6.6.2 Measurement using LCR meter . 36
6.6.3 Measurement using AC bridge . 36
6.7 Measurement of junction temperature (T ) and thermal resistance
j
(R , R ) . 38
th(j-X)el th(j-X)real
6.7.1 Purpose . 38
6.7.2 Measurement principle. 38
6.7.3 Measurement procedure . 38
6.7.4 Precautions to be observed . 47
6.7.5 Specified conditions . 49
6.8 Response time measurement . 49
6.8.1 Purpose . 49
6.8.2 Circuit diagram . 49
6.8.3 Provisions . 50
6.8.4 Measurement procedure . 50
6.8.5 Precautions to be observed . 51
6.8.6 Specified conditions . 51
6.9 Frequency response and cut-off frequency (f ) measurement . 52
c
6.9.1 Purpose . 52
6.9.2 Circuit diagram . 52
6.9.3 Provisions . 53
6.9.4 Measurement procedure . 53
6.9.5 Precautions to be observed . 54
6.9.6 Specified conditions . 54
6.10 Luminous flux (Φ ) measurement . 54
v
6.10.1 Purpose . 54
6.10.2 Measurement principle. 54
6.10.3 Measuring circuit . 54
6.10.4 Measurement procedure . 55
6.10.5 Precautions to be observed . 55
6.10.6 Measurement conditions to be defined . 56
6.11 Radiant power flux (Φ ) measurement . 56
e
6.11.1 Purpose . 56
6.11.2 Measurement principle. 56
6.11.3 Measuring circuit . 57
6.11.4 Measurement procedure . 57
6.11.5 Precautions to be observed . 57
6.11.6 Measurement conditions to be defined . 58
6.12 Luminous intensity (I ) measurement . 58
V
6.12.1 Purpose . 58
6.12.2 Measurement principle. 58
6.12.3 Measuring circuit . 59
6.12.4 Measurement procedure . 60
6.12.5 Precautions to be observed . 60
6.12.6 Measurement conditions to be defined . 60
6.13 Radiant intensity (I ) measurement . 60
e
– 4 – IEC 60747-5-6:2021 RLV © IEC 2021
6.13.1 Purpose . 60
6.13.2 Measurement principle. 60
6.13.3 Measuring circuit . 61
6.13.4 Measurement procedure . 61
6.13.5 Measurement conditions to be defined . 61
6.14 Luminance (L ) measurement . 61
v
6.14.1 Purpose .
...