Ultra-Low Power Digital-Latch Hall Effect Sensor - DRV5012

DRV5012 (ACTIVE)

Ultra-Low Power Digital-Latch Hall Effect Sensor

 

Description

The DRV5012 device is an ultra-low-power digital-latch Hall effect sensor with a pin-selectable sampling rate. ™

When a south magnetic pole is near the top of the package and the BOP threshold is exceeded, the device drives a low voltage. The output stays low until a north pole is applied and the BRP threshold is crossed, which causes the output to drive a high voltage. Alternating north and south poles are required to toggle the output, and integrated hysteresis separates BOP and BRP to provide robust switching.

Using an internal oscillator, the DRV5012 device samples the magnetic field and updates the output at a rate of 20 Hz or 2.5 kHz, depending on the SEL pin. This dual-bandwidth feature can allow systems to monitor changes in movement while using minimal power.

The device operates from a VCC range of 1.65 V to 5.5 V, and is packaged in a small X2SON.

Features

  • Industry-Leading Low-Power Consumption
  • Pin-Selectable Sampling Rate:
    • SEL = Low: 20 Hz Using 1.3 µA (1.8 V)
    • SEL = High: 2.5 kHz Using 142 µA (1.8 V)
  • 1.65- to 5.5-V Operating VCC Range
  • High Magnetic Sensitivity: ±2 mT (Typical)
  • Robust Hysteresis: 4 mT (Typical)
  • Push-Pull CMOS Output
  • Small and Thin X2SON Package
  • –40°C to +85°C Operating Temperature Range

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Parametrics Compare all products in Hall Effect Latches & Switches

 
Supply Voltage (Vcc) (Min) (V)
Supply Voltage (Vcc) (Max) (V)
Operate Point (Max) (mT)
Release Point (Min) (mT)
Output
Type
Operating Temperature Range (C)
Package Group
Pin/Package
DRV5012 DRV5013
1.65    2.5   
5.5    38   
3.3    3.4
5
9
18   
-3.3    -3.4
-5
-9
-18   
Push-pull output driver    Open drain   
Latch    Latch   
-40 to 85    -40 to 125   
X2SON    SOT-23   
4X2SON    3SOT-23   

Magnetic Field Calculator

Gauss
Rectangle Cylinder
rec

Calculated magnetic field B = 26.05 mT