Fujitsu MB3788 manual Fujitsu Limited

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MB3788

FUJITSU LIMITED

All Rights Reserved.

The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering.

The information, such as descriptions of function and application circuit examples, in this document are presented solely for the purpose of reference to show examples of operations and uses of Fujitsu semiconductor device; Fujitsu does not warrant proper operation of the device with respect to use based on such information. When you develop equipment incorporating the device based on such information, you must assume any responsibility arising out of such use of the information. Fujitsu assumes no liability for any damages whatsoever arising out of the use of the information.

Any information in this document, including descriptions of function and schematic diagrams, shall not be construed as license of the use or exercise of any intellectual property right, such as patent right or copyright, or any other right of Fujitsu or any third party or does Fujitsu warrant non-infringement of any third-party’s intellectual property right or other right by using such information. Fujitsu assumes no liability for any infringement of the intellectual property rights or other rights of third parties which would result from the use of information contained herein.

The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for use requiring extremely high reliability (i.e., submersible repeater and artificial satellite).

Please note that Fujitsu will not be liable against you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products.

Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions.

If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan.

F0309

FUJITSU LIMITED Printed in Japan

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Contents Features DescriptionPackage PIN Assignment MB3788Pin No Pin name Descriptions PIN DescriptionMB3788 Block DiagramFunctional Description Low input voltage malfunction fail-safe circuit Timer and latch-type short-circuit protection circuitParameter Symbol Conditions Values Unit Min Typ Max Parameter Symbol Conditions Ratings Unit Min MaxAbsolute Maximum Ratings Recommended Operating ConditionsParameter Symbol Conditions Value Unit Min Typ Max Electical CharacteristicsPWM TA = +25C Supply voltage VCC 8 12 16 Standard Characteristic Curves180 HOW to SET Output Voltage OFF HOW to SET Output CurrentLatch-Type Short-Circuit Protection Circuit Processing without using SCP Pin Processing Without Using SCP PINBasic Voltage-Drop Type DC/DC Converter Circuit DC/DC Converter a V φ Characteristic Measurement Diagram SCP Inpwm GND Application CircuitPart number Package Remarks Ordering InformationIndex Package DimensionFujitsu Limited