5.1 Hold-up time
■
Hold-up time is determined by the capacitance of Cbc. Fig. 5.1 shows the relationship
between hold-up time and load within the allowable capacitance of Cbc.
■
Fomula of capacitance of Cbc is shown below.
Fig. 5.1
Relationship
between
hold-up time
and Cbc
A-12
)
(
t
Cbc
2
2
hold
h
in
V
V
Po
u
u
η
t
hold
[sec]
：
Hold-up time
V
in
[ V ]
：
Input Voltage
V
h
[ V ]
：
Minimum input voltage for regulated output voltage
Po [ W ]
：
Output power
η [ % ]
：
Power supply efficiency
2.1 Pin configuration
5. Hold-up Time, Hold-up Voltage
TUHS3 Hold-up time (AC100V)
TUHS3
Hold-up time
(AC200V)
TUHS5
Hold-up time
(AC100V)
TUHS5
Hold-up time
(AC200V)
TUHS10
Hold-up time
(AC100V)
TUHS10
Hold-up time
(AC200V)
TUHS15
Hold-up time
(AC100V)
TUHS15
Hold-up time
(AC200V)
（
Reference
）
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Load factor[%]
H
ol
d-
up
tim
e
[m
se
c]
Applications Manual
TUHS series
（
Reference
）
（
Reference
）
（
Reference
）
（
Reference
）
（
Reference
）
（
Reference
）
（
Reference
）
