UNISONIC TECHNOLOGIES CO., LTD UHS41 Preliminary LINEAR INTEGRATED CIRCUIT 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 changes. 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 quite 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 detection and Proximity detection. 1 SIP-3 FEATURES * wide operating voltage range：4.5V~24V * Wide ambient temperature range: –40°~+125°C * Bipolar technology * Open-collector 25mA output * Reverse battery protection * Solid-state reliability * Resistant to physical stress * Activate with small, commercially available permanent magnets ORDERING INFORMATION Ordering Number Note: UHS41G-G03-B UHS41G-G03-K Pin Assignment: I: VDD G: GND Package SIP-3 SIP-3 Pin Assignment 1 2 3 I G O I G O Packing Tape Box Bulk O: Output www.unisonic.com.tw Copyright © 2016 Unisonic Technologies Co., Ltd 1 of 4 QW-R118-021.b UHS41 Preliminary MARKING PIN DESCRIPTION PIN NO. 1 2 3 PIN NAME VDD GND Output LINEAR INTEGRATED CIRCUIT DESCRIPTION Supply Voltage pin Ground pin Open Drain Output pin BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R118-021.b UHS41 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage VDD 28 V Supply Current IDD 50 mA Output Voltage VOUT 28 V Output Current IOUT 50 mA Storage Temperature Range TS -65 ~ +170 °C OPERATING TEMPERATURE RANGE Operating Temperature TA -40 ~ +125 °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 operation is not implied. ELECTRICAL CHARACTERISTICS (DC Operating Parameters TA= 25°C, VDD= 4.5V~24V, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN Supply Voltage VDD Operating 4.5 Supply Current IDD B<BRP Output Saturation Voltage VDSon IOUT=20mA, B>BOP Output Leakage Current IOFF B<BRP, VOUT=24V Output Rise Time tR RL=1KΩ, CL=20pF Output Fall Time tF RL=1KΩ, CL=20pF TYP 5 0.4 0.01 0.3 0.3 MAX 24 10 0.5 5 1.5 1.5 UNIT V mA V uA us us MAX 70 -5 UNIT G G G MAGNETIC SPECIFICATIONS DC Operating Parameters VDD= 4.5V~24V (unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS Operating Point BOP TA=25°C, VDD=5V DC Release Point BRP Hysteresis BHYS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 5 -70 TYP 37 -37 75 3 of 4 QW-R118-021.b UHS41 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT 3 P T C T X 2 VCC 1 OUTPUT R=10K SUPPLY 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. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R118-021.b