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US891EVK 12V-1.2A 双线圈风扇驱动器；带转向检测（RD）
Description：
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tel：0755-83031813
email：sumzi@sumzi.com
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US891EVK技术资料：欢迎来电索取！！
Features and Benefits
- Peak output current up to 1200mA
- Low start-up voltage
- Low output resistance
- High sensitivity integrated Hall Sensor
- Power-efficient CMOS and power MOSFETs
- Built-in output protection clamping diode
- Locked rotor protection and auto-restart
- Integrated alarm signal protected output
- Low cost
- 2-coil fan driver with RD output in
- RoHS Compliant 4-pin VK package
The US891 is a one-chip solution for driving two-coil brushless DC motors and fans.
Based on the advanced Melexis CMOS process, the IC contains a Hall-effect sensor, dynamic offset correction and powerful output drivers with 1200mA peak output current capability.
Specially designed for driving large fans, the device is optimized for low start-up voltage.
The Rotation Detection open-drain output makes easier the connectivity with any external interface such as hardware monitoring or Super I/O IC.
These features are combined with the Melexis patented no-VDD design to fit the IC in a small 4-pin VK package.
响拇指报价热线：
0755－33062501，83031813，83283733, 33062500
联系人：黄少华（小姐）13802552672
QQ：623069669
MSN：sumzi002@sumzi.com sumzi003@sumzi.com
Email:sumzi@sumzi.com
http://www.sumzi.com
