Low-Voltage, High-Sensitivity Hall Effect Latch Switch
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The DIODES AH1711/AH1712/AH1713/AH1714 is a low-voltage, high-sensitivity Hall effect latch IC designed for brushless DC-motor commutation speed measurement, angular or linear encoders and position sensors in industrial applications. To support a wide range of demanding applications, the design is optimized to operate at 2.4V to 5.5V. With chopper stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the AH1711/AH1712/AH1713/AH1714 provides a reliable solution over the whole operating range.
The open-drain output of AH1711/AH1712/AH1713 can be switched on when applying South pole with sufficient magnetic near the top of the package, while North pole with sufficient magnetic strength causes the open-drain output switched off. (AH1714 polarity inverted) When the magnetic flux density (B) perpendicular to the package is larger than the operate point (Bop) the output is switched on (pulled low). The output is held latched until magnetic flux density reverses and becomes lower than the release point (Brp).
|Compliance(Only Automotive supports PPAP)||Standard|
|Output Type||Open Drain|
|Active Output State (B > Bop)||Low|
|Inactive Output State (B < Brp)||High-Z|
|Operating Voltage (V)||2.4 to 5.5|
|Average Supply Current (mA)||2.3|
|Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)||5|
|Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)||18|
|Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)||37|
|Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)||-37|
|Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)||-18|
|Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)||-5|
|Output Current Capability (mA)||30|
|Operating Ambient Temperature (°C)||-40 to 125|