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Details, datasheet, quote on part number:177
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Datasheet text preview:
Hall Integrated Circuit Sensor
177
Features
3.5V to 20V operation Hall sensor Open-Collector Output. Reverse Voltage Protection.
Descriptions
177 is an integrated Hall sensors that 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. a north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the output is OFF.
Applications
Brushless DC Fan Brushless DC Motor Speed Measurement
Device Selection Guide Part No.
HALL IC
Chip Material
SI
Color
BLACK
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177
Package Dimensions
Package Sensor Location
2.1mm
Active Area Depth
1.55mm
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177
Pin Description
177
AB2
Name Vcc Gnd Output
P/I/O P P O
Pin # 1 2 3 Ground Output Pin
Description Positive Power Supply
Absolute Maximum Ratings at TA = 25°C
Parameter Supply Voltage Magnetic flux density Maximum Power Dissipation Output ON current,Ic (continous) Operating Ambient Temperature Storage Temperature Symbol Vcc B PD Ic TA Tstg Rating 20 Unlimited 400 20 -20 ~ +85 -55 ~ +150 Unit V Gauss mW mA °C °C
Notice
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177
Electronic Characteristics :( TA = 25°C, Vcc=3.5V to 20V )
Parameter Supply Voltage Output Saturation Voltage Supply Current Output Leakage Current Output Rise Time Output Fall Time Symbol Vcc VCE(SAT) Icc ILEAK tr tf MIN. 3.5 ----------TYP. --590 3.5 --0.2 0.5 MAX. 20 700 10 10 1.5 1.5 Unit V mV mA µA µS µS Condition Operating Vcc=14V Ic=20mA Vcc=20V Output Open VCE=14V Vcc=14V Vcc=14V, RL=820, CL=20pF
Magnetic Characteristics
Character Operate Point Release Point Hysteresis 177 177 177 Symbol Bop Brp Bhys Ta=+25°C Min -----60 Max . 60 ----120
Units
G G G
Magnetic Specification :
Condition:Vcc=20V,Bs=MAX[ABS(Bop),ABS(Brp)] Bin Number BS Bin1 <60 Bin2 <90 Bin3 <120
TA = 25°C
Unit:: Gauss
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177
Block Diagram
VCC
1
Regulator
Hall Sensor
3 Output
2 Gnd
Test Circuit
177
AB2
Vout
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