TDK-Lambda CCG-30-24-12S, CCG-30-24-05S, CCG-30-48-12S User guide

TDKLambda

CCG

INSTRUCTION MANUAL

CCG Series

Instruction Manual

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 mounted in environments where there is conductive foreign matter, dust or liquid, there is possibility of product failure

or malfunction. Such as install filter, please consider that a conductive foreign matter, dust and liquid do not invade inside the
power supply.

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TDKLambda

CCG

INSTRUCTION MANUAL

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.

As our product is standard industrial use product that was manufactured by purpose that is used to an general electronics

equipment etc., it is not products that to designed for High Safety uses (Uses extremely high reliability and safety are required,
if reliability and safety has not been secured, with significant dangerousness for directly life or body) is expected. Please
consider a fail safe (systems that was provided with protection circuit protective devices or systems that redundant circuit was
mounted so that was not unstable in single failure) design enough.

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.

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.

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.

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.

Note : CE MARKING

CE Marking indicated on the products which is covered by this handbook is applied to CCG3024xxS with RoHS compliance
and to CCG3048xxS with low voltage directive and RoHS compliance.

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1. Model name identification method

CCG 30 24 05 S

TDKLambda

CCG

INSTRUCTION MANUAL

Symbol for number of output S Single Output

Output Voltage

Input Voltage

Output Power type

Series Name

2. Terminal Explanation

Top view

Name Plate

Bottom view

①

②

③ ⑥

④

⑤

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

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3. Block Diagram

TDKLambda

CCG

INSTRUCTION MANUAL

+Vin

Vin

RC

Input Filter

Remote

ON/OFF

Control

+Vout

Switching

Detector

Input Voltage

OCP

Supply

Bias Power

Control Circuit

Synchronous

Rectifier CircuitorRectifier Circuit

Supply

Bias Power

＊3.3V,5V Model only

Output Filter

Driver Circuit

Detector

Output Voltage

Vout

TRM

Switching Frequency(fixed) 3.3V, 5V : 270kHz

12V, 15V : 360kHz

4. Sequence Time Chart

Vin

Input

Voltage

0V

Vout

Output

Voltage

0V

Hi

RC

Voltage

Low

Input ON

OCP set point

OCP trip

Remote ON

Remote OFF

OCP reset

Input ON

Input OFF

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TDKLambda

CCG

INSTRUCTION MANUAL

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.

F1

+Vin

C1

Vin

CCG

Vin

+Vout

TRM

+

Load

RC

Fig.51 Basic connection

Vout



F1 : Input Fuse

This CCG series has no builtin fuse.
Use external fuse to comply various Safety Standards and to improve safety.
Moreover, use normal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

CCG3024xxS : 10A or lower
CCG3048xxS : 6.3A or lower

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

CCG3024xxS : 120μF or more
CCG3048xxS : 47μF or more

Note) 1.Use low impedance electrolytic capacitor with excellent temperature characteristics.

(Nippon ChemiCon KZE series or equivalent)

2.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.

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TDKLambda

CCG

INSTRUCTION MANUAL

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.

F1

+Vin

C1

Vin

Fig.52 Protection for Reversed Input Connection

Protective

Diode

Vin

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 between

+Vout and Vout terminal.

Maximum capacitance of external output capacitor is shown in Table 51.

Table 51 Maximum Capacitance of External Output Capacitor

Output Voltage

3.3V

5V

12V

15V

Note) For 3.3V and 5V output models, 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.

Maximum Capacitance

10,000μF

7,200μF

1,200μF

1,000μF

Vin

F1

Input Voltage

Retention Diode

C1

Fig.53 Caution about Connecting Output Capacitor

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+Vin

Vin

TDKLambda

CCG

INSTRUCTION MANUAL

6. Explanation of Functions and Precautions

61. Input Voltage Range

Input voltage range for CCG series is indicated below.

Input Voltage Range

CCG3024xxS : 9  36VDC
CCG3048xxS : 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 may become 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

Input Voltage

Fig.61 Input Ripple Voltage

2V or lower

Times

Range

Input Voltage

62. Output Voltage Adjustment Range

Output voltage could be adjusted within the range described below by external resistor or variable
resistor.
However, take note that power supply might be damaged at increased output voltage which is out 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 still rated maximum
output current of specification.

Output Voltage Adjustment Range : ±10% of Nominal Output Voltage

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TDKLambda

CCG

INSTRUCTION MANUAL

Output Voltage Adjustment by External Resistor or Variable Resistor

(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)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.

+Vout

Ra

TRM

Vout

Fig.62 Basic Connection for Output Voltage Trim Down

Table 61 Equation of External Resistor and Output Voltage

Model

CCG30xx03S

CCG30xx05S

CCG30xx12S

CCG30xx15S

Equation of External Resistor and Output Voltage

Vout = 3.3 

Vout = 5.01 

Vout = 12.01 

Vout = 15 

16.05

22.8+Ra

53.95

32.3+Ra

450.01

63.3+Ra

738.3

74.9+Ra

Ra = 22.8

Ra = 32.3

Ra = 63.3

Ra = 74.9

+

Load



16.05

3.3Vout

53.95

5.01Vout

450.01

12.01Vout

738.3

15Vout

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.

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TDKLambda

CCG

INSTRUCTION MANUAL

(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)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.

+Vout

TRM

Rb

Vout

Fig.63 Basic Connection for Output Voltage Trim Up

Table 62 Equation of External Resistor and Output Voltage

Model

CCG30xx03S

CCG30xx05S

CCG30xx12S

CCG30xx15S

Equation of External Resistor and Output Voltage

Vout = 3.3 +

Vout = 5.01 +

Vout = 12.01+

Vout = 15 +

9.67

15+Rb

17.73

18+Rb

51.21

22+Rb

65.6

22+Rb

+

Rb = 15

Vout3.3

Rb = 18

Vout5.01

Rb = 22

Vout12.01

Rb = 22

Load



9.67

17.73

51.21

65.6

Vout15

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.

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TDKLambda

CCG

INSTRUCTION MANUAL

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 : 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.

50mm

CCG series

Note1)

+Vout

Vout

C2 : 22μF Ceramic Capacitor

C2

1.5m 50Ω

Coaxial Cable

JEITA attachment

R:50Ω
C:4700pF

+



Load

As short as possible

R

C

Oscilloscope

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.
Moreover, connecting ceramic capacitor can reduce output spike noise voltage.

Note1）For 3.3V and 5V output models, use two ceramic capacitors in parallel when ambient temperature

becomes lower than 20ºC to reduce ESR.

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.
A thorough preevaluation must be performed before using this power supply.

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TDKLambda

CCG

INSTRUCTION MANUAL

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.

67. Remote ON/OFF Control (RC terminal)

Without turning the input supply on and off, the output can be enabled and disabled using this function.
Standard type is negative logic.
In order to use remote ON/OFF control function, attach transistor, relay or equivalent between

RC and Vin terminal as shown Fig.65.

For secondary control, isolation can be achieved through the use of a photocoupler or equivalent as
shown in Fig.66.

Vin

F1

C1

Transistor, Relay

or Equivalent

Fig.65 RC Connection (1)

+Vin

Vin

Vin

RC

F1

+Vin

C1

Vin

Secondary

(output side)

RC

Fig.66 RC Connection (2)

Table 63 RC Connection

Logic Output Status

Negative Logic

Note) 1. When remote ON/OFF control function is not used, RC terminal should be shorted to Vin terminal.

2. Source current from RC terminal to Vin terminal is 1mA or lower.

3. The maximum RC terminal voltage is 18V.

4. 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.

Short (0V≦VRC≦0.5V)

Open (4V≦VRC≦18V)

Switch

ON

OFF

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TDKLambda

CCG

INSTRUCTION MANUAL

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.

+Vout

CCG

Vout

+Vout

CCG

Vout

Fig.67 Redundant Operation Connection

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8 and Fig.69 are possible.

+Vout

+

+Vout

+

Load



+

CCG

Vout

Load

+Vout

CCG

Vout



Fig.68 Series Operation for High Output Voltage

CCG

Vout

+Vout

CCG

Vout

Fig.69 ±Output Series Operation

Load



+

Load



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TDKLambda

CCG

INSTRUCTION MANUAL

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.

Withstand

voltage tester

+Vin

Vin

RC

+Vout

TRM

Vout

Fig.610 Withstand Voltage Test for Input – Output

+Vin

Withstand

voltage tester

Vin

RC

Fig.611 Withstand Voltage Test for Input – Case

Case

+Vout

TRM

Vout

+Vin

Vin

RC

Case

+Vout

TRM

Vout

Withstand voltage tester

Fig.612 Withstand Voltage Test for Output – Case

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TDKLambda

CCG

INSTRUCTION MANUAL

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.

+Vin

Vin

RC

Case

+Vout

TRM

DC Isolation Tester

Vout

Fig.613 Isolation Resistance 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.

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TDKLambda

CCG

INSTRUCTION MANUAL

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)

Ambient temperature
measurement point

Power supply

12.7mm

76mm

PCB

Fig.71 Output Current VS Ambient Temperature Measurement Method (for convection cooling)

(2) Output Current VS Ambient Temperature Measurement Method (for forced cooling)

25.4mm

PCB

CL

Power supply

Top view

Ambient
temperature and
air velocity

Airflow

measurement
point

12.7mm

Airflow

76mm

Fig.72 Output Current VS Ambient Temperature Measurement Method (for forced cooling)

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TDKLambda

CCG

INSTRUCTION MANUAL

(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.

CL

Temperature Measurement Point on The
Case (Center of the case)

CL

Fig.73 Temperature Measurement Point on The Case

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

(1) Output Current VS Ambient Temperature (Reference data : Vin=Typ.)

CCG302403S CCG302405S

120

100

80

60

40

Output current (%)

20

0

Natural

Convection

40

40 50 60 70 80 90 100

0.5m/s

Ambient temperature (ºC)

1.0m/s

85

120

100

80

60

40

Output current (%)

20

Natural

Convection

0

40 50 60 70 80 90 100

40

Ambient temperature (ºC)

CCG302412S CCG302415S

120

100

0.5m/s

120

100

1.0m/s

0.5m/s

85

0.5m/s

80

60

40

Output current (%)

20

0

Natural

Convection

40 50 60 70 80 90 100

Ambient temperature (ºC)

8540

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80

60

40

Output current (%)

20

Natural

Convection

0

40

40 50 60 70 80 90 100

Ambient temperature (ºC)

85

TDKLambda

CCG

INSTRUCTION MANUAL

CCG304803S CCG304805S

120

100

80

60

40

Output current (%)

20

0

Natural

Convection

40 50 60 70 80 90 100

0.5m/s

Ambient temperature (ºC)

1.0m/s

8540

CCG304812S CCG304815S

120

100

80

60

40

Output current (%)

20

0

Natural

Convection

40 50 60 70 80 90 100

0.5m/s

Ambient temperature (ºC)

8540

1.0m/s

120

100

80

Natural

Convection

60

40

Output current (%)

20

0

40 50 60 70 80 90 100

120

100

80

60

40

Output current (%)

20

0

40 50 60 70 80 90 100

Natural

Convection

0.5m/s

1.0m/s

Ambient temperature (ºC)

Ambient temperature (ºC)

1.5m/s

8540

0.5m/s

8540

＊Please see reliability data for Output Current VS Ambient Temperature.

(2) Output current VS Case Temperature

120

100

80

60

40

Output current (%)

20

0

40 5 0 60 70 8 0 90 100 110 120

40

Case temperature (ºC)

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8. Mounting Method, Soldering and Cleaning Condition

81. Mounting Method

(1) Mounting Holes on PCB

There is the recommended diameter of hole and pad of PCB in Table 81.
The mounting hole position is in Fig.81.
Also, see outline drawing for outline of the power supply.

Table 81 Recommended diameter of Hole and Pad of PCB

Input / Output terminals

Pin diameter

Hole diameter

Pad diameter 2.8mm

Top view

1.0mm

1.5mm

TDKLambda

CCG

INSTRUCTION MANUAL

RC

7.62

Vin

5.08
+Vin

20.32

Vout

10.16

TRM

10.16

+Vout

Outline of power supply

unit : mm

Fig.81 Dimension of Mounting Hole Position

(2) Recommended Material of PCB

Recommended materials of the printed circuit board is double sided glass epoxy with through holes.
(thickness : 1.6mm, copper : 35µm)

(3) 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. It is definitely
necessary to confirm on manufactures of printed circuit board for designing pattern.

(4) Method of Connecting Terminals

Connect +Vin, Vin, +Vout, Vout with consideration of contact resistance.

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TDKLambda

CCG

INSTRUCTION MANUAL

82. Recommended Soldering Condition

Recommended soldering conditions are as follows.
(1) Soldering Dip

Dip condition ： 260ºC within 10 seconds
Preheat condition : 110ºC for 30 – 40 seconds

(2) Soldering Iron

350ºC within 3 seconds

Note) Soldering time changes according to heat capacity of soldering iron, pattern on printed circuit board

etc. Please confirm actual performance.

83. Recommended Cleaning Condition

Recommended cleaning condition after soldering is as follows.
(1) Cleaning Solvent

IPA (isopropyl alcohol)

(2) Cleaning Procedure

Use brush and dry the solvent completely before use.

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TDKLambda

CCG

INSTRUCTION MANUAL

9 Before Concluding Power Module Damage

Verify following items before concluding power supply damage.
(1) No output voltage

・Is specified input voltage applied?
・Are the remote ON/OFF control terminal (RC), output voltage trimming terminal (TRM) correctly

connected?

・For case where output voltage adjustment is used, is resistor or variable resister setting,

connections correctly done?

・Are there no abnormalities in the output load used?
・Is the case temperature within the specified temperature range?
・Is the ambient temperature within the specified temperature range?

(2) Output voltage is high

・For case where output voltage adjustment is used, is resistor or variable resister setting,

connections correctly done?

・Is the ambient temperature within the specified temperature range?

(3) Output voltage is low

・Is specified input voltage applied?
・For cases where output voltage adjustment is used, is resistor or variable resistor setting,

connections correctly done?

・Are there no abnormalities in the output load used?

(4) Load regulation or line regulation is large

・Is specified input voltage applied?
・Are the input terminals and the output terminals firmly connected?
・Is the input or output wire too thin?
・Is the input or output wire too long?

(5) Output ripple voltage is large

・Is the measurement done according to methods described in the Instruction Manual or is it an

equivalent method?

・Is the input ripple voltage value within the specified value?

10. Warranty Period

Warranty period is 5 years.
For damages occurring at normal operation within this warranty period, repair is free of charge.

Following cases are not covered by warranty
(1) Improper usage like dropping products, applying shock and defects from operation exceeding

specification of the power supply.
(2) Defects resulting from natural disaster (fire, flood etc.).
(3) Unauthorized modifications or repair by the buyer's defects not cause by our company.

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