INSTRUCTION MANUAL
CCG 1R5/3
TDK-Lambda
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(3) Recommended Material of PCB
Recommended materials of the printed circuit board is double sided glass epoxy with through holes.
(thickness : 1.6mm, copper : 18µm or more)
(4) Input / Output Pattern Width
Large current flows through input and output pattern. If pattern width is too narrow, heat on pattern
will increase because of voltage drop of pattern. Relationship between allowable current and pattern
width varies depending on materials of printed circuit board, thickness of conductor and allowable
temperature rise of pattern, etc. It is definitely necessary to confirm on manufactures of printed circuit
board for designing pattern.
(5) Method of Connecting Terminals
CVin, -Vin, RC, +Vout, -Vout, TRIM/COM with consideration of contact resistance.
On CCG1R5 and CCG3, there is a possibility of reverse mounting (it means that input and output
terminals are opposite orientation) might happen as shown in Fig.8-4.
Power supply would be damaged when input voltage was applied it of reverse mounting situation.
Prevent reverse mounting by confVin terminal marking and orientation of words printed
on case as shown in Fig.8-5.
(2) Prohibition Area of Pattern Wiring
When power supply mount on PCB, avoid wiring pattern to prohibition area as shown in Fig.8-3.
Because there is a possibility to occur insulation failure.
When wiring signal pattern under the power supply even in non-prohibition area,
evaluate enough on actual system because it is susceptible to noise.
Fig.8-3 Prohibition Area of Pattern Wiring
Outline of Power Supply
unit : mm
5.50
-Vin
+Vin
RC
-Vout
+Vout
TRM,COM
3.50
①
②
② ：
Wiring prohibition area of primary circuit pattern
① ：
Wiring prohibition area of secondary circuit pattern
Fig.8-4 Image of Reverse Mounting
Image of
Reverse Mounting
Image of
Correct Mounting
Fig.8-5 Printed Image of +Vin Terminal Marking and words
+Vin Terminal Mark
+Vin
RC
+Vout
-Vout
-Vin
TRM,COM
