Instructions
INSTRUCTION MANUAL
CCG
TDKLambda
<Page>
16/20
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
85
40
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
8540
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
85
40
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
85
40
72. Output Derating Curve
The following Output Current VS Ambient Temperature is a measurement data when mounting on our 
evaluation PCB. The output derating curve is affected by the mounting board, the external components, 
and the ambient conditions. Therefore, use it after confirming the case temperature when the power 
supply operates with actual device does not exceed 110ºC (Temperature Measurement Point On The 
Case). Moreover, use below 85ºC ambient temperature.
*Evaluation PCB Specification
Size 150mm×70mm t = 1.6mm
Material FR4 (Double sided)
Copper 35μm
(3) Temperature Measurement Point on The Case 
Confirm the temperature measurement point on the case of Fig.73 is below 110ºC.
Moreover, clear the hole at the center of the label, and measure the metal part when you measure the 
case temperature. 
Fig.73 Temperature Measurement Point on The Case 
CL
Temperature Measurement Point on The 
Case (Center of the case)
CCG302412S CCG302415S
CCG302403S CCG302405S
(1) Output Current VS Ambient Temperature (Reference data : Vin=Typ.)
Natural 
Convection
0.5m/s
1.0m/s
Natural 
Convection
0.5m/s
1.0m/s
Natural 
Convection
0.5m/s
Natural 
Convection
0.5m/s
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