US65 datasheet(2/12 Pages) MELEXIS

2 / 12 page

US65 / US66

Two-Coil Low Noise Fan Driver

High Output Current

3901090209

Page 2 of 12

Preliminary Datasheet

Rev 006

Jan/07

Table of Contents

1 Functional Diagram ........................................................................................................ 1

2 General Description........................................................................................................ 1

3 Glossary of Terms .......................................................................................................... 3

4 Absolute maximum ratings ............................................................................................ 3

5 Pin definitions and descriptions.................................................................................... 3

6 General Electrical Specifications .................................................................................. 4

7 Magnetic Specifications ................................................................................................. 4

8 Output Behaviour vs Magnetic Pole.............................................................................. 5

9 Detailed General Description ......................................................................................... 5

10 Unique Features............................................................................................................ 6

10.1 Soft Switching & Slope setting.................................................................................................................6

10.2 Enhanced Locked Rotor Protection.........................................................................................................7

11 Performance Graphs .................................................................................................... 7

11.1 RDSON vs TJ ...............................................................................................................................................7

11.2 RDSON vs VDD ............................................................................................................................................7

11.3 IDD vs TJ....................................................................................................................................................7

11.4 IDD vs VDD .................................................................................................................................................7

11.5 Internal Slope Duration vs VDD ................................................................................................................8

11.6 Slope Duration vs VDD..............................................................................................................................8

11.7 VOL vs. TJ .................................................................................................................................................8

11.8 ILEAK vs. TJ ................................................................................................................................................8

11.9 IFGLIM vs. VDD ............................................................................................................................................8

11.10 PDmax vs. TA ............................................................................................................................................8

12 Application Information................................................................................................ 9

13 Application Comments ................................................................................................. 9

14 Standard information regarding manufacturability of Melexis products with

different soldering processes......................................................................................... 10

15 ESD Precautions ......................................................................................................... 10

16 DC Package Information (8-pin narrow SOIC) .......................................................... 11

17 Disclaimer.................................................................................................................... 12

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