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UNISONIC TECHNOLOGIES CO., LTD U3144 Preliminary LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 4 Copyright © 2016 Unisonic Technologies Co., Ltd QW-R118-026 .a SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION DESCRIPTION UTC U3144 is a semiconductor integrated circuit utilizing the Hall effect. It has been so designed as to operate in the alternating magnetic field especially at low su pply voltage and operation over extended temperature ranges to +85° С.This Hall IC is suitable for application to various kinds of s ensors, contact-less switches, and the like. FEATURES * Wide temperature operation range of -20°С ~ +85°С * Wide supply voltage range of 4.5V to 24V * TTL and MOS IC are directly drivable by the output * Reverse Battery Protection * Activate with Small, Commercially Available Permanent Magnets * Solid-State Reliability * SOT-89 package * Resistant to Physical Stress SOT-89 ORDERING INFORMATION Ordering Number Package Packing U3144G-AB3-R SOT-89 Tape Reel MARKING
U3144 Preliminary LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 4 www.unisonic.com.tw Q W - R 1 1 8 - 0 2 6 . a PIN CONFIGURATION PIN DESCRIPTION PIN NO. PIN NAME DESCRIPTION
1 V CC Power supply
2 GND Ground pin
3 OUTPUT Output pin
BLOCK DIAGRAM
U3144 Preliminary LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 4 www.unisonic.com.tw Q W - R 1 1 8 - 0 2 6 . a ABSOLUTE MAXIMUM RATING (TA = 25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC 28 V Reverse Battery Voltage V RCC -35 V Magnetic Flux Density B Unlimited Output OFF Voltage V OUT 28 V Reverse Output Voltage V OUT -0.5 V Continuous Output Current I OUT 25 mA Operating Temperature Range T A -40 ~ +85 °C Storage Temperature Range, T STG -65 ~ +170 °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 RESISTANCES CHARACTERISTICS (VCC=8 V over operating temperature range) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltage V CC Operating 4.5 24 V Output Saturation Voltage V OUT(SAT) IOUT=20mA, B>BOP 175 400 mV Output Leakage Current I OFF V OUT=24V, B<BRP <1.0 10 µA Supply Current I CC B<BRP(Output OFF) 4.4 9.0 mA Output Rise Time t r R L=820Ω, CL=20pF 0.04 2.0 µs Output Fall Time t f R L= 820Ω, CL=20pF 0.18 2.0 µs MAGNETIC CHARACTERISTICS IN GAUSS OVER OPERATING SUPPLY VOLTAGE RANGE (TA = 25°C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Operate Point B OP 70 350 G Release Point B RP 50 330 G Hysteresis B hys 25 G Notes: 1. Typical values are at TA=+25°C and VCC=8 V 2. BOP=operate point (output turns ON); BRP=release point (output turns OFF); Bhys=hysteresis (BOP-BRP) 3. 1 gauss (G) is exactly equal to 0.1 millitesla (mT)
U3144 Preliminary LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 4 of 4 www.unisonic.com.tw Q W - R 1 1 8 - 0 2 6 . a TYPICAL APPLICATION CIRCUIT 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.