霍尔开关OCH168,OCH168A_1.3_20070801.pdfVIP

OCH168/OCH168A Micro Power, Ultra-sensitive Hall Switch General Description Features The OCH168(OCH168A) is an Integrated Hall effect Micro power design sensor designed specifically to meet the requirements of Operation with North or South pole(omni polar) low-power devices. e.g. as an On/Off switch in Cellular 2.4V to 5.5V battery operation Flip-Phones, with battery operating voltages of 2.4V~ High sensitivity and high stability of the magnetic 5.5V. switching points Precise magnetic switching points and high temperature High resistance to mechanical stress stability are achieved through the unique design of the Digital output signal internal circuit. Good RF noise immunity An onboard clock scheme is used to reduce the average -40 ℃ to 85 ℃ operating temperature operating current of the IC. Package: SOT23-3L/TSOT23-3L/SIP3/SC70M-3L During the operate phase the IC compares the actual magnetic field detected with the internally Applications compensated switching points. The output is switched Cellular Phone at the end of each operating phase. PDA During the Stand-by phase the output stage is latched Cordless Phone and the current consumption of the device reduced to some µA. The IC switching behavior is Omnipolar, i.e. it can be switched on