UNISONIC TECHNOLOGIES CO., LTD UH276 LINEAR INTEGRATED CIRCUIT COMPLEMENTARY OUTPUTS HALL EFFECT LATCH IC DESCRIPTION The UTC UH276 is a Latch-Type Hall Effect sensor with built-in complementary output drivers. It’s designed with internal temperature compensation circuit and built-in protection diode prevent reverse power fault. The application is aimed for brush-less DC Fan The UH276 Outputs operate as the Hysteresis Characteristics. The Outputs alternately ON and OFF when either the magnetic flux density larger than threshold BOP or the magnetic flux density lower than BRP. FEATURES * Widen Power Supply range from 3V ~ 20V. * On-chip Hall sensor with excellent hysteresis. * Open Collector outputs had the sinking capability up to 400mA. * Output Clamping Diodes reduce the peak output voltages during switching. * Build-in reverse protection diode. ORDERING INFORMATION Ordering Number UH276G-G04-K Package SIP-4 Packing Bulk MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 5 QW-R118-013.C UH276 LINEAR INTEGRATED CIRCUIT PIN DESCRIPTION PIN NO. PIN NAME 1 VCC 2 DO 3 DOB 4 VSS P/I/O P O O P DESCRIPTION Positive Power Supply Output Pin Output Pin Ground BLOCK DIAGRAM SENSOR LOCATIONS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R118-013.C UH276 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 20 V Reverse VCC Polarity Voltage VRCC -25 V Output OFF Voltage VCE 32 V Magnetic flux density B Unlimited Continuous 0.4 Output ON Current Hold IC 0.5 A Peak (Start Up) 0.7 Power Dissipation PD 500 mW Junction Temperature TJ +150 °C Operating Temperature TOPR -20 ~ +85 °C Storage Temperature TSTG -65 ~ +150 °C Notes: 1. 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. 2. Output Zener protection voltage ELECTRICAL CHARACTERISTICS (TA =25°C, unless otherwise specified) PARAMETER Low Supply Voltage Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Switch Time Differential SYMBOL VCE VCC VCE(SAT) ICEX ICC tR tF ∆t TEST CONDITIONS VCC=3.5V, IL=100mA MIN TYP 3 VCC=14V, IL=400mA VCE=14V, VCC=14V VCC=20V, Output Open VCC=14V, RL=820Ω, CL=20pF VCC=14V, RL=820Ω, CL=20pF VCC=14V, RL=820Ω, CL=20pF 0.6 <0.1 15 0.3 0.04 0.3 MAX 0.6 20 0.9 10 25 3 1 3 UNIT V V V μA mA μS μS μS MAGNETIC CHARACTERISTICS A grade PARAMETR Operate Point Release Point Hysteresis SYMBOL BOP BRP BHYS MIN 10 -50 20 TYP MAX 50 -10 100 UNIT G G G SYMBOL BOP BRP BHYS MIN 5 -70 20 TYP MAX 70 -5 140 UNIT G G G SYMBOL BOP BRP BHYS MIN TYP MAX 100 UNIT G G G B grade PARAMETR Operate Point Release Point Hysteresis C grade PARAMETR Operate Point Release Point Hysteresis UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw -100 20 200 3 of 5 QW-R118-013.C UH276 CHYSTERESIS CHARACTERISTICS DOB Output Voltage in Volts Output Voltage in Volts LINEAR INTEGRATED CIRCUIT OFF BHY ON DOB Brp OFF DO BHY DO Bop ON Brp Bop 0 0 Magnetic Flux Density in Gauss Magnetic Flux Density in Gauss TYPICAL APPLICATION CIRCUIT TEST CIRCUIT 14V UH276 DO RL1 820Ω RL2 820Ω CL1 20pF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw DOB CL2 20pF 4 of 5 QW-R118-013.C UH276 LINEAR INTEGRATED CIRCUIT PERFORMANCE CHARACTERISTICS TA(°C) PD (mW) 25 550 50 525 60 515 70 505 80 485 85 475 90 465 95 455 100 445 105 425 110 405 115 385 120 365 Typical Magnetic Switch Point VS.Supply Voltage 75 BHYS 50 BOP 25 0 BRP -25 5 12 20 24 Supply Current (mA) Supply Voltage (V) 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 5 of 5 QW-R118-013.C