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US73 Datasheet

Part Number US73
Manufacturers Melexis
Logo Melexis
Description (US72 / US73) Single Coil Fan Driver
Datasheet US73 DatasheetUS73 Datasheet (PDF)

www.DataSheet4U.com US72/73 Single Coil Fan Driver Features and Benefits Full Bridge Driver High Sensitivity Hall Sensor Locked Rotor Shutdown and Auto-Restart Power-Efficient CMOS and Power MOSFETs Integrated tachometer (US72) or alarm (US73) signal outputs Applications For 12V/24V Fans Ordering Information Part No. US72 US73 Temperature Suffix E (-40° C to 85° C) E (-40° C to 85° C) Package Code DC (8-Pin narrow SOIC) DC (8-Pin narrow SOIC) Functional Diagram Out1 3 Out2 6 Vdd 1 Regulator .

  US73   US73






Part Number US79
Manufacturers ETC
Logo ETC
Description CMOS Power Hall IC
Datasheet US73 DatasheetUS79 Datasheet (PDF)

US79 Series CMOS Power Hall IC Features and Benefits ESD Tolerance IC>7,000V ESD Tolerance of Fan >15,000V Built-in Reverse Voltage Protection Built-in RFI Filter Power Efficient CMOS and Power MOSFET Drivers allow 400mA without overheating Built-in Zener Diodes Protect Outputs Eliminates all Fan Components Eliminate PC Board 5V and 12V Operation High Sensitivity for switching symmetry Locked Rotor Shutdown Applications Fan Sizes up to 90mm Current Range up to 400mA Ordering Information Part .

  US73   US73







Part Number US72
Manufacturers Melexis
Logo Melexis
Description (US72 / US73) Single Coil Fan Driver
Datasheet US73 DatasheetUS72 Datasheet (PDF)

www.DataSheet4U.com US72/73 Single Coil Fan Driver Features and Benefits Full Bridge Driver High Sensitivity Hall Sensor Locked Rotor Shutdown and Auto-Restart Power-Efficient CMOS and Power MOSFETs Integrated tachometer (US72) or alarm (US73) signal outputs Applications For 12V/24V Fans Ordering Information Part No. US72 US73 Temperature Suffix E (-40° C to 85° C) E (-40° C to 85° C) Package Code DC (8-Pin narrow SOIC) DC (8-Pin narrow SOIC) Functional Diagram Out1 3 Out2 6 Vdd 1 Regulator .

  US73   US73







Part Number US70A
Manufacturers Microsemi Corporation
Logo Microsemi Corporation
Description RECTIFIERS ASSEMBLIES
Datasheet US73 DatasheetUS70A Datasheet (PDF)

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  US73   US73







(US72 / US73) Single Coil Fan Driver

www.DataSheet4U.com US72/73 Single Coil Fan Driver Features and Benefits Full Bridge Driver High Sensitivity Hall Sensor Locked Rotor Shutdown and Auto-Restart Power-Efficient CMOS and Power MOSFETs Integrated tachometer (US72) or alarm (US73) signal outputs Applications For 12V/24V Fans Ordering Information Part No. US72 US73 Temperature Suffix E (-40° C to 85° C) E (-40° C to 85° C) Package Code DC (8-Pin narrow SOIC) DC (8-Pin narrow SOIC) Functional Diagram Out1 3 Out2 6 Vdd 1 Regulator Clamp 8 Description The US72 and US73 provide a monolithic solution for driving single-coil fans. The bridge drivers provide bi-directional current through the single phase motor winding. US72: The tachometer/Frequency Generator (FG) version produces a logic signal, which is aligned with the Hall plate signal. US73: The Rotation Detector (RD) / Alarm Signal version has a low output in the normal condition. When a locked rotor condition occurs the RD changes to a high state. P1 Hall Amp. P2 Gate Drive Switching Logic Gate Drive 2 FG/RD N1 Locked-Rotor Protection N2 Gnd 4 7 5 3901090261 Rev. 002 Page 1 of 9 Data Sheet May/04 US72/73 Single Coil Fan Driver TABLE OF CONTENTS FEATURES AND BENEFITS .. 1 APPLICATIONS .. 1 ORDERING INFORMATIO.


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