unisonic technologies co., ltd uhs41 preliminary linear integrated circuit www.unisonic.com.tw 1 of 4 copyright ? 2015 unisonic technologies co., ltd qw-r118-021.a hall-effect latched sensor ? description the utc uhs41 is an integrated hall effect latched sensor designed for electronic commutation of brush-less dc motor applications. the device includes a voltage regulator, reverse battery protection diode, hall sensor with dynamic offset cancellation system, temperature compensation circuitry, small signal amplifier, schmitt trigger and an open-collector output to sink up to 25ma. these hall-effect switches are monolithic integrated circuits with tighter magnetic specifications , and are more stable with both temperature and supply voltage c hanges. if a magnetic flux density larger than threshold bop, output is turned on (low). the output state is held until a magnetic flux density reversal falls below brp, causing output to be turned off (high). thanks to its wide operating voltage range and extended choice of temperature range, it is qui te suitable for use in dc motor applications. it also can be used for automotive, consumer and industrial, solid-state switch , speed measurement, revolution counting, angular position detect ion and proximity detection. ? features * wide operating voltage range 4.5v~24v * wide ambient temperature range: ?40~150c * bipolar technology * open-collector 25ma output * reverse battery protection * solid-state reliability * resistant to physical stress * activate with small, commercially available permanent magnets sip-3 1 ? ordering information pin assignment ordering number package 1 2 3 packing uhs41g-g03-b sip-3 i g o tape box UHS41G-G03-K sip-3 i g o bulk note: pin assignment: i: v dd g: gnd o: v out ? marking
uhs41 preliminary linear integrated circuit unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r118-021.a ? pin description pin no. pin name description 1 v dd supply voltage pin 2 out open drain output pin 3 gnd ground pin ? block diagram
uhs41 preliminary linear integrated circuit unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r118-021.a ? absolute maximum rating parameter symbol ratings unit supply voltage v dd 28 v supply current i dd 50 ma output voltage v out 28 v output current i out 50 ma storage temperature range t s -65~170 c operating temperature range operating temperature t a -40~+85 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? electrical characteristics (dc operating parameters t a = 25c, v dd = 4.5v~24v, unless otherwise specified) parameter symbol test conditions min typ max unit supply voltage v dd operating 4.5 24 v supply current i dd bb op 0.4 0.5 v output leakage current i off b uhs41 preliminary linear integrated circuit unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r118-021.a ? typical application circuit 3 2 1 p t c t x v cc r=10k supply output utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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