The AH9247DNTR-G1 is a high sensitivity Hall-effect switch with internal pull-up resistor on the output, designed for battery-operation, handheld equipments.
A chopper stabilized amplifier improves stability of magnetic switch points. A sleep-awake logic controls the IC in sleep time or awake time. This function will reduce the average operating current of the IC. During the awake time, the output is changed with the magnetic flux density. During the sleep time, the output is latched in its previous state and the current consumption will reduce to some µA.
The output can be switched on with either north or south pole of sufficient strength. If the magnetic flux density perpendicular to the part marking surface is larger than operating point (BOP), the output will be turned on; if it is less than releasing point (BRP), the output will be turned off.
The AH9247DNTR-G1 is available in TO92S (Type B), SC59 and DFN-2X2-3 packages which are optimized for most applications.
Feature
- Micropower Operation
- 2.5V to 5.5V Power Supply
- Switching for Both Poles of a Magnet (Omnipolar)
- Stabilized Chopper
- Superior Temperature Stability
- Digital Output Signal
- Built-In Pull-Up Resistor
- ESD (HBM): 6000V
- Small Low Profile DFN-2X2-3 and Industry Standard SC59 and TO92S (TYPE B) Packages
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Applications
- Cover Switch in Notebook PC/PDA
- Handheld Wireless Application Awake Switch
- Magnet Switch in Low Duty Cycle Applications
