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BEFORE USING THE POWER SUPPLY UNIT
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 unit or a fire hazard.
DANGER
· Never use this product in locations where flammable gas or ignitable substances are present.
WARNING
· Do not touch this product or its internal components while it is in operation, or within 5 seconds of shut down. There may be high voltage or high temperature
present and you may receive an electric shock or burn.
· When the product is operating, keep your hands and face away from it as you may be injured by flying debris in the event of a fault.
· Do not make unauthorized changes to this product, otherwise you may receive an electric shock and void your warranty.
· Do not use this product in the event of the emission of smoke or abnormal smell and sound etc. It might lead to fire and/or electric shock. In such cases, please
contact us. Do not attempt repair by yourself, as it is dangerous for the user.
· Do not operate these products in the presence of condensation. It might lead to fire and/or electric shock.
·
Do not drop or insert anything into the product. It might lead to a failure, fire and/or electric shock.
CAUTION
· This power supply is designed for use within an end product such that it is accessible to SERVICE ENGINEERS only.
· Confirm connections to input/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.
· Do not operate and store this product in an environment where condensation might occur. In such case, waterproof treatment is necessary.
· Do not use this product in environment with a strong electromagnetic field, corrosive gas or conductive substances.
· For applications which require very high reliability (Nuclear related equipment, traffic control equipment, etc.), it is necessary to provide a fail safe
mechanism in the end equipment.
· The information in this document is subject to change without prior notice. Please refer to the latest version of the data sheet, etc., for the most up-to date
specifications of the product.
· No part of this document may be copied or reproduced in any form without prior written consent of TDK-Lambda.
· Do not inject abnormal voltages into the output or signal of this product. The injection of reverse voltage or over voltage exceeding nominal output voltage
into the output or signal terminals might cause damage to internal components.
· Operation of this product under over-current or short circuit conditions can result in damage. Failures of the product under these conditions have been
assessed and are considered to be safe within the meaning of IEC/EN/UL/CSA 60950-1.
· This product contains a printed circuit board utilizing surface mounted devices. PCB stress such as bending, twisting etc could cause damage. Therefore,
please handle with care.
· In order to maintain SELV output, the baseplate must be protectively earthed in the end application. Where the baseplate is not earthed, the output must be
considered hazardous and must not be made user accessible"
· The output of this product may, under fault conditions, exceed SELV voltage limits. Therefore the output must be earthed in the end equipment to maintain
SELV. If the output is not earthed, they must be considered hazardous and must not be made user accessible.
· These products have been assessed for use with non-isolated mains derived DC where the mains source is up to 115VAC. For mains derived DC above this
source voltage, there must be isolation equivalent to reinforced insulation at the rated mains source voltage.
· 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.
·
Use an HBC external fuse to each module to ensure safe operation and compliance with the Safety Standards to which it is approved.
Note : CE MARKING
CE Marking, when applied to a product covered by this handbook, indicates compliance with the low voltage directive.
CN-A110 SERIES
Instruction Manual
TDK-Lambda
CN-A110 Series
Instruction Manual
C256-04-11G

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Summary of Contents for TDK-Lambda CN-A110 Series

  • Page 1 · No part of this document may be copied or reproduced in any form without prior written consent of TDK-Lambda. · Do not inject abnormal voltages into the output or signal of this product. The injection of reverse voltage or over voltage exceeding nominal output voltage into the output or signal terminals might cause damage to internal components.
  • Page 2: Table Of Contents

    TDK-Lambda CN-A110 Series Instruction Manual Table of Contents ■ Block Diagram ■ Sequence Time Chart ■ Terminal Explanation ■ Explanations on Specifications Input Voltage Range Output Voltage Adjustment Range (TRM terminal) Maximum Output Ripple and Noise Maximum Line Regulation Maximum Load Regulation Baseplate Temperature vs.
  • Page 3: Block Diagram

    TDK-Lambda CN-A110 Series Instruction Manual ■ Block Diagram +Vin -Vin ※:Only 5V Model ※:5V Model only ON/OFF ※:Only 5V Model ※:5V Model only ※:Only CN200A110-12,15,24 ※:CN200A110-12,15,24 Model only : 400kHz ● Switching frequency (fixed) : 400kHz : 300kHz CN200A110-5 Model only...
  • Page 4: Terminal Explanation

    TDK-Lambda CN-A110 Series Instruction Manual ■Terminal Explanation -Vin Name Plate +Vin (a) CN30,50,100A [Input Side Terminals] [Output Side Terminals] : -Input Terminal : -Output Terminal -Vin : ON/OFF Control Terminal : -Remote Sensing Terminal +Vin : +Input Terminal TRM : Output Voltage Trimming Terminal...
  • Page 5: Explanations On Specifications

    1. Input Voltage Range Furthermore, fuse must be connected to the +Vin side if –Vin Input voltage range for CN-A110 Series is indicated below. side is used as ground, or fuse must be connected to –Vin side if +Vin side is used as a ground.
  • Page 6: Output Voltage Adjustment Range (Trm Terminal)

    TDK-Lambda CN-A110 Series Instruction Manual Take note of the maximum allowable ripple current of Reverse Input Connection Reverse input polarity would cause module damage. For cases the electrolytic capacitor used. Especially, for sudden load current changes, verify where reverse connections are possible, connect a protective diode actual ripple current and make sure that maximum and fuse.
  • Page 7 TDK-Lambda CN-A110 Series Instruction Manual Output Voltage Adjustment by External Resistor or by Variable Resistor (1) In case of adjusting output voltage lower (2) In case of adjusting output voltage higher (1-1) Allowable maximum output current = maximum output (2-1) Allowable maximum output current = maximum output current of specification.
  • Page 8: Maximum Output Ripple And Noise

    TDK-Lambda CN-A110 Series Instruction Manual 3. Maximum Output Ripple and Noise (3) To adjust output voltage for whole range Resister values, as well as, connecting methods for external Measured value according to the specified methods based on resistor (R1) and external variable resistor(VR) are described JEITA-9141 (Clause 7.12 and clause 7.13) which is described...
  • Page 9: Over Current Protection (Ocp)

    TDK-Lambda CN-A110 Series Instruction Manual 7. Over Current Protection (OCP) 10. Remote Sensing (+S, –S terminal) This power module has built-in OCP function. Remote sensing terminal is provided to compensate for When output current is overload conditions, output voltage voltage drop across the wirings from the power module output lowers.
  • Page 10: Parallel Operation (Pc Terminal)

    TDK-Lambda CN-A110 Series Instruction Manual Notes (a) Parallel connection to enhance the output and to 1. When ON/OFF control function is not used, CNT improve the reliability terminal should be shorted to –Vin terminal. 2. When using long wiring, for prevention of noise, attach a...
  • Page 11: Series Operation

    TDK-Lambda CN-A110 Series Instruction Manual 13. Series Operation Series operation is possible for CN-A110 series. Connections shown fig. 13-1 and fig. 13-2 are possible. Measurement Point of Baseplate Temperature (a) CN30,50,100A Load Measurement Point of Baseplate Temperature Fig.13-1 Series Operation due to High Output Voltage (b) CN200A Fig.14-1 Measurement Point of Baseplate Temperature...
  • Page 12: Cooling Method

    TDK-Lambda CN-A110 Series Instruction Manual 18. Cooling Method Fig.19-1 to Fig.19-3 PC/NC terminal available only for Operating temperature range is specified by the baseplate CN200A Model. temperature. Therefore, several methods of heat dissipation are possible. Withstand Voltage Testing with Attached External For details on thermal design, refer to Application Notes “Thermal...
  • Page 13: Insulation Resistance

    TDK-Lambda CN-A110 Series Instruction Manual 20. Isolation Resistance Use DC insulation tester (MAX 500V) between output and baseplate. Insulation resistance value is 100MΩ and above at 500VDC applied voltage. Make sure that during testing, the isolation testers do not produce a high pulse when the applied voltage is varied.
  • Page 14: Installation

    TDK-Lambda CN-A110 Series Instruction Manual ■Installation 1. Mounting Method (1) Method to Fix To fix a power module onto printed circuit board, use M3 screws By the following instruction shown in Fig.1-1, mount power and mount it to the M3 threaded holes of the power module.
  • Page 15: Heatsink Installation Method

    TDK-Lambda CN-A110 Series Instruction Manual 2. Heatsink Installation Method (1) Method of Fixing Heatsink To fix the heatsink onto power module, use M3 screws and mount it to the M3 threaded holes (2 places or 4 places depending on the package size) at the baseplate side.
  • Page 16: Before Concluding Power Module Damage

    TDK-Lambda CN-A110 Series Instruction Manual ■ Before concluding power module damage Verify following items before concluding power module damage. 1) No output voltage ・Is specified input voltage applied? ・ Are the ON/OFF control terminal (CNT), remote sensing terminal (+S, –S), output voltage trimming terminal (TRM) correctly connected? ・...

This manual is also suitable for:

Cn30aCn50aCn100aCn200a

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