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Supply Voltage, VCC ........................... 26.5 V Reverse Battery Voltage, VRCC............. -18 V Zener Current, IZ ............................. 100 mA Magnetic Flux Density, B.................Unlimited Output Off Voltage, VOUT...................... VCC Output Current, IOUT ......................... 30 mA Reverse Output Current, IOUT ......... -50 mA Package Power Dissipation, PD. See Graph Junction Temperature, TJ ............... +170°C Operating Temperature Range, TA, ............................. -40°C to +150°C Storage Temperature Range, TS .............................. -65°C to +170°C
3425 Features
Two Matched Hall Switches On A Single Substrate
1 mm Sensor-to-Sensor Spacing
Superior Temperature Stability
Resistant to Physical Stress
Output Short-Circuit Protection
Operation From Unregulated Supply
Reverse Battery Protection
Solid-State Reliability
Integrated ESD Protection on Outputs and Supply
3425 Typical Application
It is strongly recommended that an external 0.01 F bypass capacitor be connected (in close proximity to the Hall sensor) between the supply and ground of the device to reduce both external noise and noise generated by the internal logic.
The simplest form of magnet that will operate these devices is a ring magnet. Other methods of operation, such as linear magnets, are possible. Extensive applica-tions information on magnets and Hall-effect sensors is also available in the "Hall-Effect IC Applications Guide"which can be found in the latest issue of the Allegro MicroSystems Electronic Data Book, AMS-702 or Appli-cation Note 27701, or at www.allegromicro.com