1 Pin Confi guration
3.1 Wiring input pin
(1) External fuse
¡
The input circuit of CBS Series does not come with a built-in fuse.
In order to protect the power module, a normal-blow fuse should
be installed to +VIN.
¡
When multiple modules get input voltage from a single front-end
power supply, a normal-blow fuse must be installed to each mod-
ule.
Model
CBS5024 CBS10024
CBS20024
CBS35024
1R8/2R5/03/05
12/15/24/28
Rated current
6A 12A 20A 25A 30A
Model
CBS5048 CBS10048
CBS20048
CBS35048
CBS45048
1R8/2R5/03/05
12/15/24/28/48
Rated current
3A 6A 10A 12A 20A
(2) Noise Filter/Grounding Capacitor
¡
A grounding capacitor C
Y
must be used to reduce the line noise
on the input line and stabilize the power module operation (Fig.
2.1). Note that resonance and inductance from the input line fi lter
may cause the power module to become unstable.
¡
An appropriate fi lter must be used if conformance to the conduct-
ed noise regulation is required or if surge voltage may be applied
to the unit. Please consult us for more details.
¡
Install a grounding capacitor C
Y
of at least 4700 pF as close to the
input pins as possible (within 50mm of the pins).
2 Connection for
Standard Use
¡
The power module needs input and output connections as shown
in Fig. 2.1.
Reference: 3 ”Wiring Input/Output Pin”
6.5 ”Derating”
¡
Short the following pins to turn on the power module.
-VIN
RC, +VOUT +S, and -VOUT -S
Reference: 4.4 ”Remote ON/OFF”
4.5 ”Remote sensing”
¡
Only DC voltage can be applied to CBS Series. Applying AC volt-
age will damage the power module.
¡
The power module is designed for conduction cooling. Make
sure that heat sinks, fans, etc. are used for heat dissipation.
Refer to 6.5 ”Derating”
3
Wiring Input/Output Pin
DC-DC Converters Bus Converter
.
Power Module Type
Instruction Manual
CBS-14
CBS
Table 1.1 Pin Assignment
No. Pin Name Function
1
+VIN +DC input
2
RC Remote ON/OFF
3
NC No connection (CBS350/450)
CASE Wiring base plate (CBS50/100/200)
4
-VIN -DC input
5
+VOUT +DC output
6
+S +Remote sensing
7
TRM Adjustment of output voltage
8
-S -Remote sensing
9
-VOUT -DC output
Mounting hole Mounting hole
No. Pin Name Reference
1
+VIN 3.1 ”Wiring input pin”
2
RC 4.4 ”Remote ON/OFF”
3
NC
CASE
3.1 ”Wiring input pin”
4
-VIN
5
+VOUT 3.2 ”Wiring output pin”
6
+S 4.5 ”Remote sensing”
7
TRM 4.6 ”Adjustable voltage range”
8
-S 4.5 ”Remote sensing”
9
-VOUT 3.2 ”Wiring output pin”
Mounting hole 6.1 ”Mounting method”
Fig.2.1 Connection for Standard Use
Table 3.1 Recommended Fuses (Normal-Blow Type)
Fig.1.1 Pin Confi guration (bottom view)
5 +VOUT
9 -VOUT
8 -S
7 TRM
6 +S
-VIN 4
3
RC 2
+VIN 1
4-Mounting hole
(CBS50/100/200) CASE
(CBS350/450)NC
+
Co
Load
+VIN
-VIN
+VOUT
-VOUT
RC
Fuse
DC
input
Cin
+
CY
+S
-S
CASE (CBS50/100/200)
Mounting hole (CBS350/450)
Cin : External capacitor on the input side
Co : External capacitor on the output side
C
Y
: Primary decoupling capacitor