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| UTC U651 LINEAR INTEGRATED CIRCUIT SINGLE OUTPUT HALL EFFECT LATCH GENERAL DESCRIPTION The UTC U651 is a Integrated Hall sensor with latch designed for electronic commutation of brushless DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. 1 TO92S FEATURES *3.5V to 20V operation *On-chip Hall sensor with two different sensitivity and hysteresis settings. *Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range. *Open-Collector 25mA Output. *Reverse Polarity Protection. 1: Vcc 2: GND 3: OUTPUT BLOCK DIAGRAM 1 Vcc REG. Hall Sensor 3 2 OUTPUT GROUND PIN DESCRIPTIONS NAME Vcc Vss DO P/I/O P P O PIN NO. 1 2 3 DESCRIPTION Positive Power Supply Ground OUTPUT Pin UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R118-001,B UTC U651 CHARACTERISTIC Supply Voltage Reverse Vcc Polarity Voltage Magnetic flux density Output OFF Voltage Output ON Current Operating Temperature Range Storage Temperature Range Package Power Dissipation LINEAR INTEGRATED CIRCUIT SYMBOL Vcc VRCC B Vce Ic Ta Ts Pd ABSOLUTE MAXIMUM RATINGS(Ta=25C ) VALUE 20 -20 Unlimited 30 30 0 ~ 70 -65 ~ 150 400 UNIT V V V mA C C mW ELECTRICAL CHARACTERISTICS( Ta=25C,Vcc=3.5V to 20V ) CHARACTERISTIC Operating Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time SYMBOL Vcc Vce(sat) Icex Icc tr tf TEST CONDITION Vcc=14V,Ic=20mA Vce=14V,Vcc=14V Vcc=20V, Output Open Vcc=14V,RL=820,CL=20pF Vcc=14V,RL=820,CL=20pF MIN 8 TYP. 300 <0.1 5 0.3 0.3 MAX 20 700 10 10 1.5 1.5 UNIT V mV uA mA us us MAGNETIC CHARACTERISTICS CHARACTERISTIC Operate Point Release Point Hysteresis SYMBOL Min Bop Brp Bhys 10 -120 20 Ta=25C Max 120 -10 240 Min 5 -120 10 Ta=0 ~ 70C Max 120 -5 240 UNIT G G G CLASSIFICATION OF OPERATING POINT RANK Bop Brp Bhys 10 -10 20 A 70 -70 140 60 -60 120 B 120 -120 240 UTC UNISONIC TECHNOLOGIES CO. LTD 2 QW-R118-001,B UTC U651 TEST CIRCUIT LINEAR INTEGRATED CIRCUIT 14V Vout(DO) RL RL=820 CL=20pF CL2 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. UTC UNISONIC TECHNOLOGIES CO. LTD 3 QW-R118-001,B |
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