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MV1001SC PDF даташит

Спецификация MV1001SC изготовлена ​​​​«SHINDENGEN» и имеет функцию, называемую «LED Driver IC».

Детали детали

Номер произв MV1001SC
Описание LED Driver IC
Производители SHINDENGEN
логотип SHINDENGEN логотип 

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MV1001SC Даташит, Описание, Даташиты
LED driver IC
CAT.No.1A0102-1E
MV1001SC
Application Note
Version 3.0









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MV1001SC Даташит, Описание, Даташиты
MV1001SC
Precautions
Thank you for purchasing this product. 1A0102-1E
When using this IC, please follow the warnings and cautions given below to ensure safety.
Warning ! Improper handling may result in death, serious injury, or major property damage.
Caution
! Improper handling may result in minor injury or property damage.
This IC is intended to be used for general electronic equipment (office equipment, communication equipment,
measurement equipment, consumer electronics, etc.). Do not use the product for medical equipment,
Warning ! aerospace planes, trains, transportation equipment (vehicles, ships, etc.), or nuclear power control systems
that may directly affect human life or health in case of a malfunction or trouble. Contact us before using the
product in applications other than general electronic equipment.
Never attempt to repair or modify the product. Doing so may lead to serious accidents.
! <<Electric shock, destruction of property, fire, or malfunctions may result.>>
In the event of a problem, an excessive voltage may arise at an output terminal, or the voltage may drop.
!
Anticipate these fluctuations and any consequential malfunctions or destruction and provide adequate
protection for equipment, such as overvoltage or overcurrent protection.
Caution ! Check the polarity of the input and output terminals. Make sure they are properly connected before turning on
power.
<<Failure to do so may lead to failure of the protective element or generate smoke or fire.>>
! Use only the specified input voltage. Deploy a protective element on the input line.
<<Problems may result in smoke or fire.>>
! In the event of a malfunction or other anomaly, shut power off and contact us immediately.
The contents of this document are subject to change without notice.
Use of this product constitutes acceptance of the formal specifications.
We have taken every possible measure to ensure the accuracy of the information in this document. However, we will not be held
liable for any losses or damages incurred or infringements of patents or other rights resulting from use of this information.
This document does not guarantee or license the execution of patent rights, intellectual property rights or any other rights of Shindengen
or third parties.
No part of this document may be reproduced in any form without prior consent from Shindengen.
! Although we continuously make every effort to enhance the quality and reliability of our products, there is a certain probability of
failure or malfunction in semiconductor products. It is advisable for customers to consider taking any safety measures in their design,
such as redundancy, fire containment, and malfunction prevention to avoid personal injury, fires, or social damages.
! Our semiconductor products contained in this manual require especially high grade of quality and reliability and are not designed and
manufactured to be used in equipment or systems of which failures or malfunctions may directly affect human life or health. When
using the product in special or specific applications described below, be sure to contact us to confirm whether the intended use of the
product is appropriate.
Special applications
Transportation equipment (vehicles, ships, etc.), trunk-line communication equipment, traffic signal control systems, disaster/crime
prevent systems, various safety equipment, medical equipment, etc.
Specific applications
Nuclear power control systems, aircraft equipment, aerospace equipment, submarine repeaters, life-support systems, etc.
! Not only for the above special and specific applications, when you use our IC products also for equipment and systems that are
intended for continuous operation and expected to last for a long time, please contact us.
We provide support for circuit design to ensure safe use of our IC products. Please contact our sales
representative or product marketing department if you have any questions.
CAT.No.1A0102-1E
1









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MV1001SC Даташит, Описание, Даташиты
MV1001SC
Contents
1. Overview........................................................................................................................................................................ 4
1.1 Features................................................................................................................................................................... 4
1.2 Block diagram .......................................................................................................................................................... 4
1.3 Pin assignment ........................................................................................................................................................ 5
1.4 Pin functions ............................................................................................................................................................ 5
2. Explanation of basic operations..................................................................................................................................... 6
2.1 Starting sequence .................................................................................................................................................... 7
3. Component selection procedure and calculation method .............................................................................................. 8
3.1 Basic circuit configuration ........................................................................................................................................ 8
3.2 Component selection ............................................................................................................................................... 9
3.2.1 MOSFET (Q1) ............................................................................................................................................ 9-10
3.2.2 Fly-wheel diode (D1) ..................................................................................................................................... 10
3.2.3 Current detection resistor (R1 and R2).......................................................................................................... 10
3.2.4 Inductor (L1) .................................................................................................................................................. 11
3.2.5 Gate drive circuit (R4, R9, and D2)................................................................................................................ 11
3.2.6 Resistors for Svin and Svout pins(R5, R6, R7 and R8) ................................................................................. 12
3.2.7 CS pin filter (R3 and C4) ............................................................................................................................... 12
3.2.8 Vcc pin smoothing capacitor (C3).................................................................................................................. 13
3.2.9 REF pin capacitor (C5) .................................................................................................................................. 13
3.2.10 Svin pin capacitor (C9) .................................................................................................................................. 13
3.2.11 Resonant capacitor (Cr) ................................................................................................................................ 13
3.2.12 Input capacitor (C1) and Output capacitor (C2)............................................................................................. 13
3.2.13 Svout pin capacitor (C8) ........................................................................................................................... 13-14
3.3 Winding voltage supply .......................................................................................................................................... 15
3.3.1 Configuration of a winding voltage supply ..................................................................................................... 15
3.3.2 Selecting the auxiliary winding (Nc)............................................................................................................... 15
3.3.3 Selecting the auxiliary winding rectifier diode (D3) ................................................................................... 15-16
3.3.4 LED open-circuit protection using auxiliary winding....................................................................................... 16
3.3.5 High-side drive cuircuit .................................................................................................................................. 17
4. Cautions on pattern designing ..................................................................................................................................... 18
4.1 Cautions................................................................................................................................................................. 18
4.2 PCB pattern example............................................................................................................................................. 19
CAT.No.1A0102-1E
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