Si720x Hall Effect Magnetic Sensor

The Si720x switch and latch devices have a digital output that changes state with change in magnetic field settings. This product family has omni-polar and latch type outputs. The best in class sensitivity and low power of these devices allows you to detect fields over longer ranges and extend battery life.

AN1018: Using the Si72xx Hall Effect Sensors

Electrical, mechanical, and magnetic considerations surrounding the use of Si72xx devices.

Features

  • 400nA current at 5 samples/second
  • High sensitivity – Bop as low as 0.9 mT
  • Second threshold for tamper detection
  • Omnipolar Switch and Latch outputs available
  • LV (1.71 V - 5.5 V) and HV (3.3 V - 26.5 V) supply ranges available
  • AECQ-100 automotive qualified
  • Available in industry standard SOT23 and TO92 packages

Si720x Product Matrix

Status
Devices
Part Number Data Sheet Dev Kit Description Output Type Output Configuration idd (typ) (µA) Bop (max) Brp (min) |Bop-Brp| (typ) Full Scale Field Strength (mT) Sample Rate (Hz) Temp Compensation Tamper Threshold (mT) Vdd (min) Vdd (max) Temperature Range (°C) Package Type
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch Low (Push-Pull) 0.4 1.1 0.2 0.4 20 5 0 1.7 3.6 0 70 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch Low (Push-Pull) 0.4 1.1 0.2 0.4 20 5 19.8 1.7 3.6 0 70 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch High (Push-Pull) 1.1 0.9 0.2 0.2 20 5 0.12% 19.8 1.7 3.6 0 70 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch High (Push-Pull) 57 2.8 1.1 0.6 20 1000 0 1.7 3.6 0 125 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch Low (Push-Pull) 0.4 1.4 1.1 0.4 20 5 0 1.7 5.5 -40 125 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch Low (Push-Pull) 0.4 2 0.6 0.6 20 5 19.8 1.7 5.5 -40 125 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch Low (Open Drain) 0.4 2 0.6 0.6 20 5 0 1.7 5.5 -40 125 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch Low (Open Drain) 0.4 2 0.6 0.6 20 5 19.8 1.7 5.5 -40 125 SOT23-3
Si72xx-EVAL-KIT Switch Magnetic Sensor Omnipolar Switch Low (push-pull) 0.4 1.4 1.1 0.4 20 20 0 1.7 5.5 -40 125 TO92
Si72xx-EVAL-KIT Switch Magnetic Sensor Omnipolar Switch High (push-pull) 57 2.8 1.1 0.6 20 8000 0 1.7 3.6 0 125 TO92
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Latch High (Push-Pull) 0.4 0.65 0.65 0.8 20 5 0 1.7 3.6 0 70 SOT23-3
Si72xx-EVAL-KIT Latch Magnetic Sensor Latch Low (push-pull) 57 1.4 0.65 2 20 8000 0 1.7 5.5 -40 125 TO92
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch High (Open Drain) 0.4 1.1 0.2 0.4 20 1000 19.8 1.7 3.6 0 70 SOT23-5
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Latch High (Push-Pull) 0.4 1.1 1.1 1.8 20 1000 0 1.7 3.6 0 70 SOT23-5
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Omnipolar Switch Low (Open Drain) 5 3 0.8 0.6 20 100 0 3.3 26.5 -40 125 SOT23-3
Si72xx-EVAL-KIT Hall Effect Magnetic Sensor Latch Low (Open Drain) 5 1.4 1.4 2 20 100 0 3.3 26.5 -40 125 SOT23-3
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