• Part: A1180
  • Description: Unipolar Hall-Effect Switch
  • Manufacturer: Allegro MicroSystems
  • Size: 407.98 KB
Download A1180 Datasheet PDF
Allegro MicroSystems
A1180
A1180 is Unipolar Hall-Effect Switch manufactured by Allegro MicroSystems.
feature allows for optimization of sensor switching performance by effectively accounting for variations caused by magnet and SIP placement tolerances. These devices provide on-chip transient protection. A zener clamp on the power supply protects against over-voltage conditions on the supply line. The output of the A118X FAMILY, with the exception of the A1180/2, will switch HIGH in the presence of a sufficiently large south-pole magnetic field and will switch LOW with the removal of the field. The A1180/2 has the opposite polarity as the others, switching LOW in the presence of a sufficient magnetic field and HIGH with the removal of the field. Two package styles provide a magnetically optimized package for most applications. Suffix “LH” is a miniature low profile package for surface-mount applications; suffix “UA” is a three-lead ultra-mini Single Inline Package (SIP) for through-hole mounting. Factory programmed versions also available, see A1140/42/43/45. Programming software and/or hardware demonstration kits also available see ASEK-01 on the Allegro web site, .allegromicro.. See typical application drawing for UA pinning. ABSOLUTE MAXIMUM RATINGS Supply Voltage VCC …………………………………….. 26.5 V Reverse-Battery Voltage VRB ……………………………………… -18 V Magnetic Flux Density B …………………………………… Unlimited Package Power Dissipation θja, UA…………………………………. 206 °C/W LH1……………………………….….248 °C/W Junction Temperature, TJ ……………….. +170°C Operating Temperature Range, TA Suffix “E” …………….……. - 40 °C to + 85 °C Suffix “L” …………………. - 40 °C to + 150 °C Storage Temperature Range TS ………………………… -65 °C to +170 °C FEATURES / BENEFITS - Chopper Stabilization s Extremely low switch-point drift s Low stress sensitivity - One-time external programmability s Operate Point - On-chip Protection s Supply transient protection s Robust ESD/EMC protection s Reverse-battery protection - On-board Voltage Regulator s 3.8 V to 24 V operation Order by plete part number (i.e. A1182LUA). The “LH” PPD is based...