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 Driver Output vs Magnetic Pole 4 9 Detailed General Description 5 10 Unique
Key Features
0 0 0 0 0 0 0 0 Peak output current up to 1200mA Low start-up voltage Low output resistance High sensitivity integrated Hall Se en n sor Power-efficient CMOS and power MOSFETs Built-in output protection clamping diode Locked rotor protection and auto-r estart Integrated tachometer (US890) or alarm (US891) signal protected output 0 Low cost 0 2-coil fan driver with FG/RD output in RoHS Compliant 4-pin VK packa ge age.
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US890 0 / US891 Two-Coil Fan Driver – High Ou utput Current Features and Benefits 0 0 0 0 0 0 0 0 Peak output current up to 1200mA Low start-up voltage Low output resista...
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ak output current up to 1200mA Low start-up voltage Low output resistance High sensitivity integrated Hall Se en n sor Power-efficient CMOS and power MOSFETs Built-in output protection clamping diode Locked rotor protection and auto-r estart Integrated tachometer (US890) or alarm (US891) signal protected output 0 Low cost 0 2-coil fan driver with FG/RD output in RoHS Compliant 4-pin VK packa ge age Application Examples 0 0 0 0 5V/12V DC brushless moto r/fan PC, server, laptop cooling f fan Power supply cooling fan Large and small fan size Ordering Code Product Code US891 US890 Temp Tempera ture Code erature E E Package Cod