TDK-Lambda CCG15 Series User manual

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
BEFORE USING THE POWER SUPPLY
Be sure to read this instruction manual thoroughly before using this product. Pay attention to all cautions and warnings before
using this product. Incorrect usage could lead to an electrical shock, damage to the power supply or a fire hazard.
DANGER
Never use this product in locations where flammable gas or ignitable substances are present.
INSTALLATION WARNING
·When installing, ensure that work is done in accordance with the instruction manual. When installation is improper, there is
risk of electric shock and fire.
·Installation shall be done by Service personnel with necessary and appropriate technical training and experience. There is a
risk of electric shock and fire.
·Do not cover the product with cloth or paper etc. Do not place anything flammable around. This might cause damage, electric
shock or fire.
WARNING on USE
·Do not touch this product or its internal components while circuit in operation, or shortly after shutdown. You may receive a
burn.
·While this product is operating, keep your hands and face away from it as you may be injured by an unexpected situation.
·There are cases where high voltage charge remains inside the product. Therefore, do not touch even if they are not in operation
as you might get injured due to high voltage and high temperature. You might also get electric shock or burn.
·Do not make unauthorized changes to this product nor remove the cover as you might get an electric shock or might damage
the product. We will not be held responsible after the product has been modified, changed or disassembled.
·Do not use this product under unusual condition such as emission of smoke or abnormal smell and sound etc. Please stop using
it immediately and shut off the product. It might lead to fire and electric shock. In such cases, please contact us. Do not
attempt repair by yourself, as it is dangerous for the user.
·Do not operate and store these products in environments where condensation occurs due to moisture and humidity. It might
lead fire and electric shock.
·Do not drop or apply shock to this product. It might cause failure. Do not operate these products mechanical stress is applied.
CAUTION on MOUNTING
·Confirm connections to input terminals, output terminals and signal terminals are correct as indicated in the instruction manual
before switching on.
·Input voltage, Output current, Output power, ambient temperature and ambient humidity should be kept within specifications,
otherwise the product will be damaged or malfunction.
·Input line and output line, please use the wires as short and thick as possible.
·Do not use this product in special environment with strong electromagnetic field, corrosive gas or conductive substances and
direct sunlight, or places where product is exposed to water or rain.
·Mount this product properly in accordance with the instruction manual, mounting direction and shall be properly be ventilated.
·Please shut down the input when connecting input and output of the product.
·When installing in environment where conductive foreign, dust and liquid may be present, please consider penetration of
above foreign material in the power supply by installing filter, to prevent trouble or malfunction.
1/23 C266-04-11F
CCG15
・ 30 Series
Instruction Manual

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
2/23
CAUTION on USE
·Product individual notes are shown in the instruction manual. If there is any difference with common notes, individual notes
shall have priority.
·Before using this product, be sure to read the catalog and instruction manual. There is risk of electric shock or damage to the
product or fire due to improper use.
·Input voltage, Output current, Output power, ambient temperature and ambient humidity should be kept within specifications,
otherwise the product will be damaged, or cause electric shock or fire.
·For products without built-in protection circuit (element, fuse, etc.), insert fuse at the input to prevent smoke, fire during
abnormal operation.
·For externally mounted fuse do not use other fuses aside from our specified and recommended fuse.
·This product was made for general purpose electronic equipment use and is not designed for applications requiring high safety
(such as extremely high reliability and safety requirements. Even though high reliability and safety are not required, this
product should not be used directly for applications that have serious risk for life and physical safety. Take sufficient
consideration in fail-safe design (such as providing protective circuit or protective device inside the system, providing
redundant circuit to ensure no instability when single device failure occurs).
·When used in environments with strong electromagnetic field, there is possibility of product damage due to malfunction.
·When used in environment with corrosive gas (hydrogen sulfide, sulfur dioxide, etc.), there is possibility that they might
penetrate the product and lead to failure.
·When used in environments where there is conductive foreign matter, dust or liquid, there is possibility of product failure or
malfunction.
·Provide countermeasure for prevention of lightning surge voltage as there is risk of damage due to abnormal voltage.
·Take care not to apply external abnormal voltage to the output terminals and signal terminals. Especially, applying reverse
voltage or overvoltage more than the rated voltage to the output might cause failure, electric shock or fire.
·Never operate the product under overcurrent or short circuit condition. Insulation failure, or other damages may occur.
·The application circuits and their parameters are for reference only. Be sure to verify effectiveness of these circuits and their
parameters before finalizing the circuit design. Moreover, we will not be responsible on application patent or utility model.
·Excessive stress could cause damage. Therefore, please handle with care.
·Use recommended external fuse to each products to ensure safe operation and compliance with the Safety Standards to which
it is approved.
·The input power source to this product must have reinforced or double insulation from the mains.
·This product has possibility that hazardous voltage may occur in output terminal depending on failure mode. The output of
these products must be protected by over voltage protection circuit in the end use equipment to maintain SELV.
Note
·Consider storage of the product at normal temperature and humidity avoiding direct exposure to sunlight at environment with
minimal temperature and humidity changes. Storage of product at high temperature, high humidity and environments with
severe changes in temperature and humidity might cause deterioration, and occurrence of condensation in the product.
·When disposing product, follow disposal laws of each municipality.
·Published EMI (CE, RE) or immunity is the result when measured in our standard measurement conditions and might not
satisfy specification when mounted and wired inside end-user equipment.
·Use the product after sufficiently evaluating at actual end-user equipment.
·If products are exported, please register the export license application etc. by the Government of Japan according to Foreign
Exchange and Foreign Trade Control Law.
·The information in the catalog or the instruction manual is subject to change without prior notice. Please refer to the latest
version of the catalog or the instruction manual.
·No part of this document may be copied or reproduced in any form without prior written consent TDK-Lambda.

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
1. Model name identification method
CCG 30 – 24 – 05 S / □
Option(*1) (*1) Blank :Standard
/P :Remote ON/OFF
Positive Logic
Symbol for number of output S：Single Output
D：Dual Output
Output Voltage
Input Voltage
Output Power type
Series Name
2. Terminal Explanation
Top view
Bottom view
3/23
CCG-S
① +Vin : +Input Terminal
② -Vin : -Input Terminal
③ RC : Remote ON/OFF Control Terminal
④ +Vout : +Output Terminal
⑤ TRM : Output Voltage Trimming Terminal
⑥ -Vout : -Output Terminal
①
②
③ ⑥
⑤
④
CCG-D
① +Vin : +Input Terminal
② -Vin : -Input Terminal
③ RC : Remote ON/OFF Control Terminal
④ +Vout : +Output Terminal
⑤ COM : Common Ground Terminal
⑥ -Vout : -Output Terminal
Name Plate
④
⑤
⑥
②
①
③

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
4/23
3. Block Diagram
CCG30-S
CCG15-S
CCG-D
Rectifier Circuit
or
Synchronous
Rectifier Circuit
Switching Frequency(fixed) : 430kHz
+Vin
Remote
ON/OFF
Control
-Vin
RC
+Vout
-Vout
TRM
＊3.3V,5V Model only
Input Filter
Input Voltage
Detector
OCP
SwitchingControl Circuit
Bias Power
Supply
Bias Power
Supply
Driver Circuit
Output Voltage
Detector
Output Filter
Rectifier Circuit
or
Synchronous
Rectifier Circuit
Switching Frequency(fixed) : 3.3V、 5V : 270kHz
12V、 15V : 360kHz
+Vin
Remote
ON/OFF
Control
-Vin
RC
+Vout
-Vout
TRM
＊3.3V,5V Model only
Input Filter
Input Voltage
Detector
OCP
SwitchingControl Circuit
Bias Power
Supply
Bias Power
Supply
Driver Circuit
Output Voltage
Detector
Output Filter
Switching Frequency(fixed) : 430kHz
+Vin
Remote
ON/OFF
Control
-Vin
RC
+Vout
-Vout
COM
Rectifier Circuit
Input Filter
Switching
Input Voltage
Detector
OCP
Control Circuit
Bias Power
Supply
Output Filter
Output Voltage
Detector

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
5/23
4. Sequence Time Chart
*1 For example on above, RC Voltage shows Negative Logic control operation. For details on this function,
please refer to Application Notes “6-7. Remote ON/OFF Control (RC terminal)” section.
RC
Voltage
(*1)
Vin
0V
Vout
0V
Hi
Low
Input
Voltage
Output
Voltage
Input ON
OCP set point
Input OFF
Input ON
Remote ON
OCP reset
OCP trip
Remote OFF

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
6/23
5. Terminal Connecting Method
In order to use the CCG series, this power supply must be connected with external components
according to Fig.5-1.
If it is connected to wrong terminal, the power supply will be damaged. Pay attention to each wiring.
Fig.5-1 Basic connection
F1 : Input Fuse
CCG series has no internal fuse.
Use external fuse to comply various Safety Standards and to improve safety.
Moreover, use fast-blow type for every power supply.
Furthermore, fuse must be connected to +Vin side if -Vin side is used as ground, or fuse must be
connected to -Vin side if +Vin side is used as ground.
Consider margin over the actual input voltage to be used when selecting fuse. Moreover, consider
I2t fuse rating for surge current (inrush current) during line throw-in.
Input Fuse Recommended Current Rating
CCG15-24-xxS/D : 6.3A or lower
CCG15-48-xxS/D : 5.0A or lower
CCG30-24-xxS/D : 10A or lower
CCG30-48-xxS/D : 6.3A or lower
CCG-S
+Vin
RC
+Vout
-Vout
C1
-Vin
LoadTRM
F1
+
-
Vin
CCG-D
+Vin
RC
+Vout
-Vout
C1
-Vin
Load
COM
F1
+
-Vin
Load
+
-
CCG-S
+Vin
RC
+Vout
-Vout
C1
-Vin
LoadTRM
F1
+
-
Vin
CCG-D
+Vin
RC
+Vout
-Vout
C1
-Vin
Load
COM
F1
+
-Vin
Load
+
-
(a) Standard model (Negative Logic model)
(b) Positive Logic model

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
7/23
C1 : External Input Capacitor
To prevent the effect of input line inductance to the power supply, connect electrolytic capacitor
between +Vin and -Vin terminals.
Recommended Capacitance
CCGxx-24-xxS/D : 120μF or more
CCGxx-48-xxS/D : 47μF or more
Note) 1.Use low impedance electrolytic capacitor with excellent temperature characteristics.
(Nippon Chemi-Con KZE series or equivalent)
2.When using CCG15-24-xxS below -10℃ ambient temperature, connect more than two
recommended capacitor in parallel to reduce ESR.
3.When input line inductance becomes excessively high due to insertion of choke coil,
operation of the power supply could become unstable. For this case, increase capacitance
of electrolytic capacitor more than recommended capacitance.
4.When steeply to open the input line by using the relay etc. when the power supply is operating,
there is possibility of the power supply restarts due to the power input voltage rises.
It is influenced by the impedance characteristics of pattern on printed circuit board, C1 and choke
coil etc.
Please use it on the actual machine sufficiently.

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
8/23
Fig.5-3 Caution about Connecting Output Capacitor
C1
F1
+Vin
-Vin
Input Voltage
Retention Diode
Vin
● Protection for Reversed Input Connection
Reverse input polarity would cause power supply damage. For cases where reverse connections
are possible, connect a protective diode and fuse. Use protective diode with higher voltage rating
than the input voltage, and with higher surge current rating than fuse current rating.
● External Output Capacitor
This power supply is capable of operating without external output capacitor.
For case of abrupt changes in load current or the line to the load is long, operation might become
unstable. In this case, it is possible to stabilize the output voltage by attaching capacitor.
CCG-S : between +Vout and -Vout terminal
CCG-D : between +Vout and COM terminal, -Vout and COM terminal
Maximum capacitance of external output capacitor is shown in Table 5-1.
Note) When using 3.3V and 5V output models of CCG30-S, output voltage might become unstable at
input voltage dips or short interruption on connection output capacitor. In this case, it is possible
to stabilize the output voltage by attaching input voltage retention diode and increase capacitance
of C1 as shown in Fig.5-3. Use input voltage retention diode with higher current rating than fuse
current rating. Moreover, choose a suitable capacitance of C1 in accordance with operating
condition.
Table 5-1 Maximum Capacitance of External Output Capacitor
Fig.5-2 Protection for Reversed Input Connection
C1
F1
+Vin
-Vin
Protective
Diode
Vin
Model
3.3V
5V
Maximum capacitance
10,000μF
7,200μF
12V, ±12V
15V, ±15V
1,200μF
1,000μF

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
9/23
6-2. Output Voltage Adjustment Range (Only CCG-S)
Output voltage could be adjusted within the range described below by connecting external resistor
or variable resistor.
However, take note that power supply might be damaged when output voltage exceeds the range
described below.
When increasing the output voltage, reduce the output current accordingly so as not to exceed the
maximum output power.
Take note that when output voltage is decreased, maximum output current is until rated maximum
output current of specification.
Output Voltage Adjustment Range : ±10% of Nominal Output Voltage
6. Explanation of Functions and Precautions
6-1. Input Voltage Range
Input voltage range for CCG series is indicated below.
Input Voltage Range
CCGxx-24-xxS/D : 9 - 36VDC
CCGxx-48-xxS/D : 18 - 76VDC
Take note that power supply might be damaged or not meet specification when applied input voltage
which is out of specified range.
Ripple voltage(Vrpl) which results from rectification and filtering of commercial AC line is might be
included within the input voltage as shown in Fig.6-1.
In this case, ripple voltage must be limited within the voltage described below.
Allowable Input Ripple Voltage：2Vp-p
When input ripple voltage exceed above value, the output ripple voltage might be large.
Take note that sudden input voltage change might be cause variation of output voltage transitionally.
Moreover, maximum value and minimum value of input voltage waveform must not go beyond the limit
of above input voltage range.
Vrpl
2V or lower
Input Voltage
Range
Times
Input Voltage
Fig.6-1 Input Ripple Voltage

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
10/23
● Output Voltage Adjustment by External Resistor or Variable Resistor (Only CCG-S)
(1) In case of adjusting output voltage lower
(1-1) Maximum output current
In case of adjusting output voltage lower, maximum output current is until rated maximum
output current of specification.
ex)In case of CCG30-xx-12S
When setting 12V Model to 10.8V output, maximum output power = 10.8V×2.5A = 27W.
(1-2) External resister connecting method
Connect an external resistor or variable resister Ra between TRM and +Vout terminal.
To prevent the effect of noise or other, connect as short as possible because TRM terminal is
relatively high impedance.
Please refer to Table 6-1 when adjusting output voltage.
Output Voltage：Vout(V), External Resistor Value：Ra(kΩ)
Output voltage could be adjusted within the -10% of nominal output voltage
by external resistor Ra.
Fig.6-2 Basic Connection for Output Voltage Trim Down
Table 6-1 Equation of External Resistor and Output Voltage
+Vout
-Vout
Load
TRM
+
-
Ra
CCG-S
CCGxx-xx-03S
CCGxx-xx-05S
CCGxx-xx-12S
CCGxx-xx-15S
Model Equation
Vout (V) = 3.3 - 16.05
22.8+Ra (kΩ)
Vout (V) = 5.01 - 53.95
32.3+Ra (kΩ)
Vout (V) = 12.05 - 445.7
63.1+Ra (kΩ)
Vout (V) = 15.08 - 732.7
74.7+Ra (kΩ)
Ra (kΩ)= 22.8-
16.05
3.3-Vout (V)
Ra (kΩ)= 32.3-
53.95
5.01-Vout (V)
Ra (kΩ)= 63.1-
445.7
12.05-Vout (V)
Ra (kΩ)= 74.7-
732.7
15.08-Vout (V)

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
11/23
(2) In case of adjusting output voltage higher
(2-1) Maximum output current
When increasing the output voltage, reduce the output current accordingly so as not to exceed
the maximum output power.
ex)In case of CCG30-xx-12S
When setting 12V Model to 13.2V output, maximum output current = 30W÷13.2V = 2.272A.
(2-2) External resister connecting method
Connect an external resistor or variable resister Rb between TRM and -Vout terminal.
To prevent the effect of noise or other, connect as short as possible because TRM terminal is
relatively high impedance.
Please refer to Table 6-2 when adjusting output voltage.
Fig.6-3 Basic Connection for Output Voltage Trim Up
+Vout
-Vout
Load
TRM
+
-
Rb
Table 6-2 Equation of External Resistor and Output Voltage
Output Voltage：Vout(V), External Resistor Value：Rb(kΩ)
Output voltage could be adjusted within the +10% of nominal output voltage
by external resistor Rb.
CCG-S
CCGxx-xx-03S
CCGxx-xx-05S
CCGxx-xx-12S
CCGxx-xx-15S
Model Equation
Vout (V) = 3.3 + 9.67
15+Rb (kΩ)Rb (kΩ)= 15-
9.67
Vout (V)-3.3
Vout (V) = 5.01 + 17.73
18+Rb (kΩ)
Vout (V) = 12.05 + 50.96
22+Rb (kΩ)
Vout (V) = 15.08 + 65.35
22+Rb (kΩ)
Rb (kΩ)= 18-
17.73
Vout (V)-5.01
Rb (kΩ)= 22-
50.96
Vout (V)-12.05
Rb (kΩ)= 22-
65.35
Vout (V)-15.08

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
12/23
6-3. Maximum Output Ripple and Noise
This output ripple and noise voltage is measured at connection as shown in Fig.6-4.
Connect ceramic capacitor (C2, C3 : 22μF) at 50mm distance from the output terminal.
Measure at C2 terminals as shown in Fig.6-4 using coaxial cable with JEITA attachment.
Use oscilloscope with 20MHz frequency bandwidth or equivalent.
Fig.6-4 Measurement of Maximum Output Ripple and Noise
Take note that, PCB wiring design might influence output ripple voltage and spike noise voltage.
Generally, increasing capacitance value of external capacitor can reduce output ripple voltage and
connecting ceramic capacitor can reduce output spike noise voltage.
Note1）When using 3.3V and 5V output models of CCG30-S below -20ºC ambient temperature, use
two ceramic capacitors in parallel to reduce ESR.
Note1)
+
-
C2
50mm
※As short as possible
+Vout
-Vout
CCG-D
C2, C3 : 22μF Ceramic Capacitor
Oscilloscope
JEITA attachment
R:50Ω
C:4700pF
R
C
1.5m 50Ω
Coaxial Cable
R
C
1.5m 50Ω
Coaxial Cable
JEITA attachment
R:50Ω
C:4700pF
C3
Load
+
-
Load
COM
Load
+
-
C2
50mm
※As short as possible
+Vout
-Vout
CCG-S
C2 : 22μF Ceramic Capacitor
Oscilloscope
JEITA attachment
R:50Ω
C:4700pF
R
C
1.5m 50Ω
Coaxial Cable

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
13/23
6-4. Maximum Line Regulation
Maximum value of output voltage change when input voltage is gradually varied (steady state) within
specified input voltage range.
6-5. Maximum Load Regulation
Maximum value of output voltage change when output current is gradually varied (steady state) within
specified output current range.
When using at dynamic load mode, output voltage fluctuation might increase.
Also, when CCG-D is used with unbalanced load, the output voltage with the higher load factor
decreases and the output voltage with the lower load factor increases.
A thorough pre-evaluation must be performed before using this power supply.
6-6. Over Current Protection (OCP)
This power supply has built-in OCP function.
When short circuit or output current is in overload condition, it becomes intermittent operation.
Output will recover when short circuit or overload conditions are released.
Take note that power supply might be damaged at continuous overload conditions depending on
thermal conditions.

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
14/23
6-7. Remote ON/OFF Control (RC terminal)
The output can be enabled/disabled by RC terminal without turning the input supply on and off.
There are two type of control logic, Negative Logic and Positive Logic. Polarity of control logic is
Determined by Product Specification.
In order to use remote ON/OFF control function, attach transistor, relay or equivalent switch between
RC and -Vin terminal as shown in Fig.6-5.
For secondary control, isolation can be achieved through the use of a opto-coupler or equivalent as
shown in Fig.6-6.
Note) 1. When remote ON/OFF control function is not used, between RC and -Vin terminals should be
shorted on Negative Logic model. In contrast, RC and -Vin terminals should be opened on Positive
Logic model.
2. Source current from RC terminal to -Vin terminal is 1mA or lower.
3. The allowable maximum RC terminal voltage of Negative Logic model is 18V, and Positive Logic
model is 7V.
4. In case of applying external voltage into RC terminal with Positive Logic model, please contact us.
5. When using long wiring, for prevention of noise, attach capacitor between RC and -Vin terminal.
The maximum capacitance between RC and -Vin terminal is 1μF.
Fig.6-5 RC Connection (1)
Table 6-3 RC Connection
Vin
+Vin
-Vin
F1
C1
RC
Transistor, Relay
or Equivalent
Fig.6-6 RC Connection (2)
Vin
+Vin
-Vin
F1
C1
RC
Secondary
(output side)
Logic Output Status
Negative Logic ON
OFF
Switch
Short
Open
Positive Logic OFF
ON
Short
Open
RC Voltage Range
0V≦VRC≦0.5V
4V≦VRC≦18V
0V≦VRC≦0.5V
OpenNote4)

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
15/23
6-8. Redundant Operation
Redundant operation is possible for loads that are within the maximum output power of one power
supply. When one power supply is shut-down by the power failure etc., another one can continue to
provide power.
6-9. Parallel Operation
Parallel operation cannot be used.
6-10. Series Operation
Series operation is possible for CCG series.
Connections shown in Fig.6-9 and Fig.6-10 are possible.
Fig.6-7 Redundant Operation Connection (CCG-S)
Fig.6-9 Series Operation for High Output Voltage
+Vout
-Vout
CCG
+Vout
-Vout
CCG
+
-
Load
+
-
Load
+Vout
-Vout
CCG
+Vout
-Vout
+
-
Load
CCG
Fig.6-10 ±Output Series Operation
+Vout
-Vout
CCG-D
+Vout
-Vout
CCG-D
+
-
LOAD
GND
COM
COM
Fig.6-8 Redundant Operation Connection (CCG-D)
＜Reference＞
CCG-D can be used as 24V or 30V single output by connecting + Vout and -Vout to the load.
+Vout
-Vout
CCG-D
+
-
LOAD
COM
Fig.6-11 Connection when CCG-D single output is used
+Vout
-Vout
CCG-S
+Vout
-Vout
CCG-S
+
-
Load

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
16/23
6-11. Operating Ambient Temperature
This is the allowable operating range.
Output load needs to be derated depending on the ambient temperature. There is no restriction on
mounting direction but there should be enough consideration for airflow so that heat does not
accumulate around the power supply vicinity. Determine external components configuration and
mounting direction on PCB such that air could flow around the power supply at forced cooling and
convection cooling. For better improvement of power supply reliability, derating of ambient
temperature is recommended. For details, refer to "7.Output Derating" section.
6-12. Operating Ambient Humidity
Take note that condensation could lead to power supply abnormal operation or damage.
6-13. Storage Ambient Temperature
Take note that sudden temperature change can cause dew condensation, and it may affect solderability
of terminals.
6-14. Storage Ambient Humidity
Take enough care when storing the power supply because rust which causes poor solderability would
occurred on terminals when stored in high temperature, high humidity environment.
6-15. Withstand Voltage
This power supply is designed to have a withstand voltage of 1.5kVDC between input and output,
1.0kVDC between input and case and 1.0kVDC between output and case for 1 minute. When
conducting withstand voltage test during incoming inspection, set the current limit value of the
withstand voltage testing equipment to 10mA. Furthermore, avoid throw in or shut off of the testing
equipment when applying or when shutting down the test voltage. Instead, gradually increase or
decrease the applied voltage. Take note especially when using the timer of the test equipment because
when the timer switches the applied voltage off, impulse voltage which has several times the magnitude
of the applied voltage is generated causing damage to the power supply. Connect the terminals as shown
in the diagram below.
Fig.6-12 Withstand Voltage Test for Input – Output
Fig.6-14 Withstand Voltage Test for Output – Case Fig.6-13 Withstand Voltage Test for Input – Case
+Vin
RC
+Vout
-Vout
-Vin TRM,COM
Withstand
voltage tester
Case
+Vin
RC
+Vout
-Vout
-Vin TRM,COM Withstand
voltage tester
Case
+Vin
RC
+Vout
-Vout
-Vin TRM,COM
Withstand
voltage tester

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
17/23
6-16. Isolation Resistance
Isolation resistance value is 100MΩ and above at 500VDC applied voltage.
Use DC isolation tester (MAX 500V) between output and case.
Make sure that during testing, the isolation testers do not generate a high pulse when the applied
voltage is varied. Ensure that the tester is fully discharged after the test.
6-17. Vibration
Vibration of power supply is defined when mounted on PCB.
6-18. Shock
Withstand shock value is define to be the value at TDK-Lambda shipment and packaging conditions,
or when mounted on PCB.
6-19. Capacitance of Input - Output
This product has internal capacitor connected between input and output.
Capacitance of input - output : 1000pF
In case that high level and high frequency AC voltage is applied, loss of internal capacitor increase
and the product might be damaged.
In case that voltage between input and output changes suddenly on the application or the load of high
frequency pulse is connected to the output side, please contact us.
Fig.6-15 Isolation Resistance Test
DC Isolation Tester
+Vin
RC
+Vout
-Vout
-Vin TRM,COM
Case

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
18/23
Fig.7-2 Output Current vs. Ambient Temperature Measurement Method (for forced cooling)
Fig.7-1 Output Current vs. Ambient Temperature Measurement Method (for convection cooling)
(2) Output Current vs. Ambient Temperature Measurement Method (for forced cooling)
7. Output Derating
7-1. Output Derating Measurement Method
There is no restriction on mounting direction but there should be enough consideration for airflow so
that heat dose not accumulate around the power supply vicinity. Determine external components
configuration and mounting direction on PCB such that air could flow around the power supply at
forced cooling and conventional cooling. The derating of the output current is necessary when the
ambient temperature is high. (See Output Current vs. Ambient Temperature.) Output Current vs.
Ambient Temperature is measured according to Fig.7-1 and Fig.7-2. When mounting on actual
device, do actual measurement based on measurement points shown in Fig.7-1 and Fig.7-2.
For this measurement, in order not to exceed the Rating temperature of the critical component, refer to
the case temperature measurement point shown on Fig.7-3.
(1) Output Current vs. Ambient Temperature Measurement Method (for convection cooling)
76mm
12.7mm
PCB
Power supply
Ambient temperature
measurement point
CL
25.4mm
PCB
Power supply
Ambient temperature
and air velocity
measurement point
76mm
12.7mm
Airflow
Top view
Airflow

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
85-40
19/23
7-2. 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 FR-4 （Double sided）
Copper 35μm
(3) Temperature Measurement Point on The Case
Confirm the temperature measurement point on the case of Fig.7-3 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.7-3 Temperature Measurement Point on The Case
CL
Temperature Measurement Point on The
Case (Center of the case)
(1) Output Current vs. Ambient Temperature (Reference data : Vin=Typ.)
Natural
Convection
0.5m/s or more
CL
【CCG15-S】（All model）
◆CCG30-24-03S
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
85
-40
0.5m/s
1.0m/s or more
◆CCG30-24-05S
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
85
-40
0.5m/s
1.0m/s or more
【CCG30-S】
Natural
Convection Natural
Convection

INSTRUCTION MANUAL
CCG15
・ 30 Series
TDK-Lambda
<Page>
20/23
(2) Output Current vs. Case Temperature
＊Please see reliability data for Output Current vs. Ambient Temperature, when other input voltage
is appeied.
0
20
40
60
80
100
120
40 50 60 70 80 90 100 110 120
Output current (%)
Case temperature (ºC)
-40
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
0.5m/s
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
1.0m/s
0.5m/s
1.5m/s or more
0.5m/s
1.0m/s or more
◆CCG30-48-03S ◆CCG30-48-05S
1.0m/s or more
0.5m/s
◆CCG30-48-12S
Natural
Convection
Natural
Convection
Natural
Convection
Natural
Convection
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
◆CCG30-24-12D
Natural
Convection 0.5m/s
1.0m/s
1.5m/s or more
◆CCG30-24-12S、CCG30-24-15S、CCG30-48-15S、
CCG30-24-15D、CCG30-48-15D
0
20
40
60
80
100
120
40 50 60 70 80 90 100
Output current (%)
Ambient temperature (ºC)
◆CCG30-48-12D
0.5m/s
1.0m/s or more
Natural
Convection