UNISONIC TECHNOLOGIES CO., LTD H1277 LINEAR INTEGRATED CIRCUIT HIGH SENSITIVITY HALL EFFECT SENSOR IC WITH FG OUTPUT DESCRIPTION The UTC H1277 is a semiconducting integrated Hall Effect Sensor IC. It is just like all the hall sensitive Hall Effect Sensors designed to work in the situations which the accurate track is extremely small and the changes in magnetic flux density-changes are generally too small to be operated. Besides those features shared in all Hall Effect Sensors, H1277 can apply to various kinds of applications, such as contact-less switches, motion detectors, gear tooth sensors, proximity detectors, and electric communication of DC brushless motors, etc. FEATURES * Hall Sensor On-Chip * Output Zener Diodes to Clamp the Peak Output Voltage * Frequency Generation Output * High Output Sinking Capability (nearly to 400mA) * High Sensitivity Hall Effect Sensor IC: ±65G ORDERING INFORMATION Ordering Number Lead Free Halogen Free H1277L-G04-K H1277G-G04-K Package Packing SIP-4 Bulk PIN DESCRIPTION PIN NO. 1 2 3 4 PIN NAME FG DO DOB GND DESCRIPTION Open collector pin: for rotation frequency detection Coil output or power input Coil output or Power input IC ground www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd 1 of 5 QW-R118-011.B H1277 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM SENSOR LOCATIONS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R118-011.B H1277 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25°С,unless otherwise specified) PARAMETER SYMBOL RATINGS UNITS Supply Voltage (DO/DOB Voltage) VCC 25 V FG Pin Off Voltage VOFF 25 V FG Sink Current IFG 10 mA Output Current IOUT 500 mA Power Dissipation PD 500 mW Junction Temperature TJ -20 ~ +150 °С Storage Temperature TSTG -65 ~ +150 °С 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. RECOMMENDED OPERATING CONDITIONS (Ta=25°С,unless otherwise specified) PARAMETER Supply voltage (DO/DOB Voltage) Maximum FG Pin Off Voltage Maximum Output Sink Current Maximum FG Sink Current Junction Temperature Operating Temperature RATINGS 3.7~20 20 400 5 -20~ +125 -20 ~ +85 UNITS V V mA mA °С °С ELECTRICAL CHARACTERISTICS (Ta = 25°С,VCC =12V, unless otherwise specified) PARAMETER Output Saturation Voltage Supply Current FG OFF Leakage Current FG ON Saturation Voltage Clamp Output Voltage Output Rise Time Output Fall Time Propagation Delay Time SYMBOL VCC VOFF IOUT IFG TJ TOPR SYMBOL VO(SAT) ICC IOFF VON VCLAMP tR tF tD TESE CONDITIONS IOUT = 400mA MIN IFG = 5mA TYP 700 11 0.2 33 0.4 0.1 2 RL = 200Ω, CL = 10pF MAX 900 25 1 0.4 UNITS mV mA μA V V μS μS μS MAX 65 -10 UNITS Gauss Gauss MAGNETIC CHARACTERISTICS (Ta = 25°С,VCC =12V unless otherwise specified) PARAMETER Magnetic Operate Points Magnetic Release Points SYMBOL Bop Brp UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TEST CONDITIONS MIN 10 -65 TYP 3 of 5 QW-R118-011.B H1277 LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT VFG VDD +B UTC H1277 -B L2 L1 TEST CIRCUIT V2 V1 +B UTC H1277 -B IFG VON A IOFF V A V ICC VCC Measure VCC,ICC when DO is off. Measure VON,IFG when FG is on. Measure IOFF when FG is off. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R118-011.B H1277 TYPICAL APPLICATION CIRCUITS (Ta = 25°С,VCC =12V unless otherwise noted) Supply Current, ICC (mA) Supply Current, ICC (mA) LINEAR INTEGRATED CIRCUIT Output Current vs. Output Saturation Voltage FG Sink Current vs. FG On Saturation Voltage 400 5 FG Sink Current, IFG (mA) Output Current, IOUT (mA) 350 300 250 200 150 100 50 0 0.15 0.3 0.45 0.6 0.75 Output Saturation Voltage,VO(SAT) (V) 4 3 2 1 0 0 0.05 0.10 0.15 FG On Saturation Voltage,VON (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-R118-011.B