Related Manuals for Shindengen MD1320N
Summary of Contents for Shindengen MD1320N
- Page 1 CAT.No.U085 3.3V/5V Stepdown DC to DC Converter Power IC MD1320N Application Manual SHINDENGEN ELECTRIC MFG. CO., LTD.
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Page 2: Using The Md1320N Dc To Dc Converter Power Ic
Thank you for purchasing the MD1320N DC to DC Converter Power IC. This manual contains important information on the safe use of the MD1320N. Your safety is most important to our company. Please read these instructions carefully before using this device. -
Page 3: Table Of Contents
DC to DC Converter Power IC MD1320N Application Manual Table of Contents CONTENTS Using the MD1320N DC to DC Converter Power IC ..........1 General description of the DC to DC Converter Power IC MD1320N ..... 3 2 - 1 Features 2 - 2... -
Page 4: General Description Of The Dc To Dc Converter Power Ic Md1320N
General description of the DC to DC Converter Power IC MD1320N The MD1320N is a non-isolated step-down DC to DC converter power IC with built-in main switch MOSFET and SBD flywheel. The maximum output is 7.5W (5V, 3.5A). The highly efficient power IC can be used over a wide range of applications. -
Page 5: Terminal Functions
2 - 5 Terminal functions... -
Page 6: Block Diagrams
2 - 6 Block diagrams External dimensions ( Diagram ) ( SSOP-32 ) -
Page 7: Characteristics
Characteristics 1 ) Absolute maximum rating (Ta=25 2 ) Recommended operating conditions 3 ) Electrical characteristics (Ta=25... -
Page 8: Mounting
Mounting 5 - 1 Soldering pattern reference (Reflow-type) 5 - 2 Mounting cautions 1 ) Mounting Vibration and other mechanical disturbances can exert stress on the internal parts of the device. Carefully examine your equipment and place the device where vibration and other shock is minimal. -
Page 9: Printed Circuit Board Patterns And Design Considerations(Reference)
5 - 3 Printed circuit board patterns and design considerations(Reference) 3.3V5V 3.3V5V +Vin +Vin C1-1 C1-2 C1-1 C1-2 Typical 1.5A surface mounted parts model 3.3V5V 3.3V5V +Vin +Vin Typical 1.5A lead parts model The device does not have a voltage surge protection circuit or an input fuse. The user should install an input fuse to protect the device and equipment before using the device. -
Page 10: Operating Instructions
Operating instructions The MD1320N power IC device uses chopper circuitry and can be referred to as a chopper type DC to DC converter. The device requires an external choke and capacitor to be connected to it. The characteristics of these external parts and the way they are packaged and connected will greatly affect the performance of the device and its circuits. -
Page 11: Input Protection Element Connection
Caution The MD1320N device has an output current drop function. In the event of power IC device malfunction resulting in excessive input current flow, smoke and flame may be emitted from the equipment. To prevent this, install a fuse or protective circuitry to the power IC device input line. -
Page 12: Remote On/Off Control Function
Remote ON/OFF Control The MD1320N is not provided with remote ON/OFF control functions. When necessary, be sure to add the recommended circuit shown below. The use of remote control (R/C) circuit turns the output ON and OFF without making or breaking the input. -
Page 13: Reference Parts
6 - 5 Reference parts used with standard circuits 6 - 6 Electrical characteristics (Ta = 25 Efficiency and ripple are measured according to external reference parts circuit configuration that is based on standard circuit configuration. Efficiency and ripple voltage conditions: Vin = 12V and Io = rated output current... -
Page 14: Overcurrent Detecting Resistor (R1) Selection
Basic device set-up standards Set-up sequence below Areas that must be carefully considered in the set-up of the device include the overcurrent detecting resistor, circuit inductance, output capacitor, input capacitor, and thermal characteristics. 7 - 1 Overcurrent detecting resistor (R1) selection Detects a peak voltage across the resistor of 0.19V + - 15% Switching noise and other factors may cause some variation in the calculated drop point value. -
Page 15: Output Capacitor Selection
7 - 5 Thermal management The MD1320N is so designed that heat is radiated when Pins 11, 12, 13, 14, and Pins 18, 19, 20 and 21 are connected to the substrate pattern. The necessary area of heat radiation pattern... -
Page 16: Electrical Measurement Data
Electrical data measurement This data results from measurements taken using equipment connected as shown in the standard connection diagram and using reference part and reference circuitry patterns. 8 - 1 Output voltage - 3.3V Line regulation Load regulation Temperature drift Efficiency and loss characteristics IC temperature increase Derating curve... - Page 17 Input curreent/ input voltage characteristics Input voltage/output voltage characteristics Current limit characteristic (Input fluctuation) Current limit characteristic (Temperature fluctuation) Start-up rising characteristics Shut-down falling characteristics...
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Page 18: Output Voltage - 5V
8 - 1 Output voltage - 5V Line regulation Load regulation Temperature drift Efficiency and loss characteristics IC temperature increase Derating curve... - Page 19 Input curreent/ input voltage characteristics Input voltage/output voltage characteristics Current limit characteristic (Input fluctuation) Current limit characteristic (Temperature fluctuation) Start-up rising characteristics Shut-down falling characteristics...
- Page 20 Packing 9 - 1 Tape & Reel 1 ) Tape Material : PVC Dimensions Comply with JIS, C-0806 2 ) Reel Material : Polystyrene Demensions Comply with EIAJ, ETX-7001 Label Type No. Code No. Date Code Quantity Manufacturer 3 ) Leader and Trailer Trailer 120mm(min) Device Top cover 400mm(min)
- Page 21 9 - 2 Packing / Outer Carton Tape & Reel : 6,000pcs (3 Reels) Stick : 4,000pcs (160 Sticks) / Outer Carton Label Marking Type No. Code No. Date Code Quantities 9 - 3 Ordering and Dimensions Quantities per Outer Carton (mm) Quantities Per Outer Carton Minimum Ordering...
- Page 22 MEMO...
- Page 23 MEMO...
- Page 24 This product is classified as the integrated circuit specified in Item 7 in the Attached Table No. 1 to the Export Trade Control Order and in Article 6 of the Ordinance of the Ministry of International Trade and Industry. This product is subject to the KNOW regulation. October 2000 Shindengen America, Inc. Head Office 2985 E. Hillcrest Drive, Suite 140 Westlake Village, CA91362, U.S.A.
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