MD3221N Просмотр технического описания (PDF) - Unspecified

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MD3221N

DC-DC Converter Power IC

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1 Using the MD3221N DC to DC Converter Power IC

Thank you for purchasing the MD3221N DC to DC Converter Power IC. This manual contains important

information on the safe use of the MD3221N. Your safety is most important to our company. Please read these

instructions carefully before using this device.

CAUTION

The improper use of this device can result in serious injury or death.

Expensive damage to this and other equipment can result. Failure to observe the cautions in

this Manual can also result in minor injuries and annoying equipment damage.

CAUTION

The MD3221N is intended for use with general electronic equipment (office automation,

communication, measurement, household, etc.) It is not intended for use with equipment whose

failure might result in the death or injury of those depending upon it (medical treatment, air

navigation, railroad, cargo handling, nuclear power, etc.)

If you intend to use the MD3221N with other than the general equipment listed above, please consult

with our company.

Under no conditions attempt to repair or modify this device by yourself. Doing so can result in

electric shock, equipment breakage, fire, and unreliable (and dangerous) equipment operation.

Abnormal operating conditions may result in excessive voltage at the output terminal or excessive

voltage drops elsewhere in the device. Take steps to prevent load mishandling and breakage

(overvoltage and overcurrent prevention) at the final point in the equipment chain.

Overvoltage protection

The MD3221N is not equipped with an overvoltage protection function. In the event excessive

voltage appears within a module, the high input voltage may remain together with a high output

voltage even when the equipment is turned off. Smoke and flame may appear. To prevent this, be sure

to install some sort of overvoltage protection circuitry before using the equipment.

Before providing electrical power to the device, check that the polarity of the input and output

terminals is correct (check for misconnections). If circuit protection circuitry is cut off from the rest

of the equipment, smoke and flames may appear.

Be sure that input voltage level is maintained at the specified level. This may require the installation

of a voltage regulator to the input line. Voltage fluctuations may result in the appearance of smoke

and flames.

If a breakdown or other abnormal condition occurs during equipment use, immediately stop power to

the equipment. Contact our company at your earliest possible convenience.

■ The information appearing in this Manual is the latest available at the time of publication. We reserve the right to make changes to the device

without prior notice. Therefore, your device may differ slightly from that described in this Manual.

■ Every effort has been made to make the information in this Manual accurate and reliable. However, our company takes no responsibility for

injuries or damage incurred when using the device as described in this Manual. Neither do we take responsibility for damages incurred as a

result of patent or other defined rights.

■ We do not give consent for a third person to use our patent or other rights based on this material. We do not guarantee these rights.

■ No part of this material may be reproduced or copied without the specific written consent of our company.

■ This device fully meets the reliability and quality control standards described in our company's catalog. If this device is to be used in a situation

where its misuse or failure might cause serious injury or death, consult with our company.

■ Reliability and quality control standards for this device are considered adequate when it is used with the following types of end equipment.

Computer - Office automation - Communication terminal - Measurement • Machine tools - Audio-visual - Games and other amusements -

Household appliance - Personal items - Industrial robot.

Special applications where the device may or may not be suitable include the following.

Transportation and conveyance (cargo loading) equipment- Primary communications equipment - Traffic signal control equipment - Fire and

burglary alarms - Various safety devices - Medical equipment

Other special applications where the device reliability is not considered high enough include the following.

Atomic energy control systems - Aviation equipment- Aeronautics and space equipment - Ocean depth sounding equipment - Life

supportequipment

■ Our company makes a constant effort to improve the quality and reliability of our products. However, it is the customer's responsibility to

provide safety. Take the appropriate steps to prevent personal injury, fire, and damage by providing redundancy equipment, fire containment

equipment, and devices to protect personnel and equipment from operational mistakes.

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