MX887D Datasheet, PDF (1/6 Pages) Clare, Inc. – μPower Hall-Effect Switch

Features
• μPower Operation (15 μW typical at 25°C)
• Omnipolar (switches with N or S pole)
• 2.5V to 5.5V Operation
• Simple Digital Open-Drain Output
• Ultra Low Offset Canceling Amplifiers Provide
Sensitive, Accurate, Stable Switching Points and
Immunity to Mechanical Stress
• Solid State Reliability
• Operating Temperature Range: -40°C to +85°C
• RoHS Compliant TSOT-23 3-Lead Package
Applications
• Handheld Portable Devices
• White Goods
• Automotive - Body Systems
• Security Systems
• High Reliability Reed Switch Replacement
MX887D
μPower Hall-Effect Switch
Description
The MX887D integrated Hall-Effect switch targets the
requirements of low-power portable devices with
battery operating voltages from 2.5V to 5.5V. On-chip
power management circuitry reduces the effective
average current to just 5μA at V_SUPPLY = 3V_DC .
The switch output will turn “on” when either a north or
south magnetic pole is applied. The absence of a
magnetic field will set the switch into the
high-impedance “off” state. Emulating the behavior of
a traditional reed switch, together with the advantages
of high integration and solid state reliability, makes the
MX887D an ideal replacement in low-power portable
device applications.
Pb
RoHS
2002/95/EC
e3
Figure 1. Functional Block Diagram
Ordering Information
Part
MX887DHTTR
Description
TSOT-23 3L Tape & Reel (3000/Reel)
V_SUPPLY
1
Power Management Logic
Hall
Sensor
Output 2
3
DS-MX887D - August 10, 2009
www.clare.com
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