S-5721A Datasheet | Seiko Instruments

Rev.2.1_00 BIPOLAR DETECTION TYPE HALL IC WITH POWER-DOWN FUNCTION S-5721A/5722A Series The S-5721A/5722A Series, developed using CMOS technology, is a bipolar detection type Hall IC with a high-sensitivity that operates on a low current. The output voltage changes when the S-5721A/5722A Series detects the intensity level of flux density and a polarity change. Using the S5721A/5722A Series with a magnet makes it possible to detect rotation in various devices. High-density mounting is possible by using the super-small SNT-4A package. Also, the S-5721A/5722A Series is the most suitable for portable devices due to the included power-down circuit. - Features - Built-in chopping stabilized amplifier - Detection of bipolar magnetic fields - Applicable in various devices with wide range of option Detection logic for magnetism : Level “H” at S pole detection, level “L” at S pole detection Output types : CMOS output, Nch open drain output - Wide power supply voltage range : 2.4 V to 5.5 V - Low current consumption : 80 µA typ., 120 µA max. (S-5721A Series) - High speed detection : Operating cycle 132 µs typ., 240 µs max. (S-5722A Series) - Built-in power-down circuit : Extends battery life In the power-down mode 1.0 µA max. - Operating temperature range : - 40°C to +85°C Small dependency magnetic characteristics against temperature - Small package : SNT-4A - Lead-free product - Applications .. - Jog dials, wheel keys - Trackballs, mouse devices - Operation keys - Playthings, portable games - Home appliances - Package Package Name SNT-4A Package PF004-A Drawing Code Tape Reel PF004-A PF004-A Land PF004-A Seiko Instruments Inc. BIPOLAR DETECTION TYPE HALL IC WITH POWER-DOWN FUNCTION Rev.2.1_00 S-5721A/5722A Series - Block Diagrams 1. CMOS output product - 1 Power-down circuit...