- 4 -
TDK-Lambda
CN-A110 Series
Instruction Manual
■
Explanations on Specifications
1. Input Voltage Range
Input voltage range for CN-A110 Series is indicated below.
Input Voltage Range : 60 - 160VDC
Basically
，
ripple voltage (Vrpl) which results from rectification
and filtering of commercial AC line is included within the input
voltage as shown in Fig. 1-1. Ripple voltage must be limited within
the voltage described below.
Allowable Input Ripple Voltage : 10Vp-p
When this value is exceeded, the output ripple voltage
becomes large.
Note that sudden input voltage change may cause variation of
output voltage transitionally.
Also, input voltage waveform peak value must not exceed
above input voltage range.
Fig.1-1 Input Ripple Voltage
Basic Connection
Fig.1-2 Basic Connection
Input Fuse
This power module has no built-in fuse. Use external fuse to
acquire various Safety Standards and to improve safety.
Also, use fast-blow type or nomal-blow type for every module.
Furthermore, fuse must be connected to the +Vin side if –Vin
side is used as ground, or fuse must be connected to –Vin side
if +Vin side is used as a ground.
Input Fuse Recommended Current Rating:
CN100A110 : DC400V and above , 5A
CN30,50A110 : DC400V and above , 4A
CN200A110 : DC400V and above , 10A
C1 :
To prevent the effect of input line inductance to the power
module, connect electrolytic capacitor bVin and –Vin
terminals.
Furthermore, use electrolytic capacitor with small ESR value.
Especially take note that during line turn off at low ambient
temperature, power module output will not normally shut down.
CN30,50,100A
Recommended Capacitor Value : 47
μ
F and above
(Voltage Rating 200V and above)
CN200A
Recommended Capacitor Value : 100
μ
F and above
(Voltage Rating 200V and above)
Notes
1.
Use low impedance electrolytic capacitor with excellent
temperature characteristics.
CN30,50,100A
(Nippon Chemi-con KMQ, KXJ Series or equivalent)
CN200A
(Nippon Chemi-con KXJ Series or equivalent)
2.
When using at
–
20
℃
ambient temperature,
connect capacitors as below to reduce equivalent
series resistance.
CN30,50,100A
Use two capacitors (100
μ
F,100V) in series.
CN200A
Use two series capacitors (120
μ
F,100V) in two parallel.
(Nippon Chemi-con LXV Series or Nichicon PM Series or
equivalent)
3.
When input line inductance becomes excessively high
due to insertion of choke coil, operation of the power
module could become unstable. For this case, increase C1
value more than the value indicated above.
In
pu
t V
ol
ta
ge
Time
Vrpl
below
10V
In
pu
t V
ol
ta
ge
R
an
ge
Fuse
CN-A110
+Vin
-Vin
+V
-V
+S
-S
TRM
Baseplate
CNT
C1
C3
C2
+
-
Load
PC/NC*
* PC/NC terminal : Only CN200A
