7.1 Holdup time
■
Holdup time is determined by the capacitance of Cbc.
Fig.7.1
TUNS300F
Relationship
between
holdup time
and Cbc
Fig.7.2
TUNS500F
Relationship
between
holdup time
and Cbc
Fig.7.3
TUNS700F
Relationship
between
holdup time
and Cbc
Fig.7.1, Fig.7.2 and Fig.7.3 show the relationship between holdup time and output current
within the allowable capacitance of Cbc.
A-16
10
100
1000
0
20
40
60
80
100
120
Output current [%]
Ho
ldu
p t
im
e [
ms
]
Cbc=390uF
Cbc=470uF
Cbc=1,560uF
Cbc=2,200uF
10
100
1000
0
20
40
60
80
100
120
Output current [%]
Ho
ldu
p t
im
e [
ms
]
Cbc=390uF
Cbc=780uF
Cbc=1,560uF
Cbc=2,200uF
2.1 Pin configuration
7. Holdup Time
Applications Manual
TUNS300/500/700
