特价供应双磁极霍尔传感器U79 US79KUA

价格：

面议

详细介绍
企业详情

品牌:Melexis 型号:U79 US79KUA 种类:霍尔材料:聚合物材料物理性质:半导体制作工艺:集成输出信号:数字型防护等级:NA 线性度:NA（%F.S.）迟滞:NA（%F.S.）重复性:NA（%F.S.）灵敏度:NA 漂移:NA 分辨率:NA

双磁极霍尔传感器U79 US79KUA

US79 Series
CMOS Power Hall IC
Features and Benefits
• 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
• Eliminate 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 No. Temperature Suffix Package Code
US79 K (-40°C to 125°C) UA (TO-92 flat)

1. Functional Diagram

2. Description
The US79KUA is the most advanced Smart Fan
Control Hall IC. It is designed for 5V and 12V
cooling commutation. The chip contains many
features to allow survival in a harsh
environment. The IC was designed to eliminate
all discrete components such as capacitors,
resistors, transistors, diodes, PC board and
associated labor, replacing US$0.25 to US$0.35
in direct cost.

The K rating guarantees proper operation up to
an ambient temperature of 125°C. Hall IC
circuitry and power FET output provide a low
power dissipation cool chip.

Locked Rotor conditions are detected by the IC
when there is no motion for one second and will
shut off the motor drive for five seconds. Then,
the IC will turn on the drive current for one
second. This sequence continues indefinitely
until the locked rotor condition is fixed. This
feature prevents overheating.