U651 UTC | Alldatasheet
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UTC U651 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R118-001,B 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.
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. TO92S 1: Vcc 2: GND 3: OUTPUT BLOCK DIAGRAM PIN DESCRIPTIONS NAME P/I/O PIN NO. DESCRIPTION Vcc P 1 Positive Power Supply Vss P 2 Ground DO O 3 OUTPUT Pin REG. Hall Sensor 3 OUTPUT GROUND Vcc
UTC U651 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO. LTD 2 QW-R118-001,B ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) CHARACTERISTIC SYMBOL VALUE UNIT Supply Voltage Vcc 20 V Reverse Vcc Polarity Voltage V RCC -20 V Magnetic flux density B Unlimited Output OFF Voltage Vce 30 V Output ON Current Ic 30 mA Operating Temperature Range Ta 0 ~ 70 °C Storage Temperature Range Ts -65 ~ 150 °C Package Power Dissipation Pd 400 mW ELECTRICAL CHARACTERISTICS( Ta=25°C,Vcc=3.5V to 20V ) CHARACTERISTIC SYMBOL TEST CONDITION MIN TYP. MAX UNIT Operating Supply Voltage Vcc 8 20 V Output Saturation Voltage Vce(sat) Vcc=14V,Ic=20mA 300 700 mV Output Leakage Current Icex Vce=14V,Vcc=14V <0.1 10 uA Supply Current Icc Vcc=20V, Output Open 5 10 mA Output Rise Time tr Vcc=14V,RL=820Ω,CL=20pF 0.3 1.5 us Output Falling Time tf Vcc=14V,RL=820Ω,CL=20pF 0.3 1.5 us MAGNETIC CHARACTERISTICS CHARACTERISTIC SYMBOL Ta=25°C Min Max Ta=0 ~ 70°C Min Max UNIT Operate Point Bop 10 120 5 120 G Release Point Brp -120 -10 -120 -5 G Hysteresis Bhys 20 240 10 240 G CLASSIFICATION OF OPERATING POINT RANK A B Bop 10 70 60 120 Brp -10 -70 -60 -120 Bhys 20 140 120 240
UTC U651 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO. LTD 3 QW-R118-001,B TEST 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. 14V RL RL=820Ω CL=20pF CL2 Vout(DO)