TSH181 General Purpose Hall Effect Latch TO-92S Pin Definition: 1. VDD 2. GND 3. Output Description TSH181, Hall-Effect sensor, designed for electronic commutation of brush-less 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 band gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. The device is identical except for magnetic switch points. The device includes on a single silicon chip a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, open-collector output to sink up to 25mA. A south pole of sufficient strength will turn the output on. The North Pole is necessary to turn the output off. An on-board regulator permits operation with supply voltages of 3.5V to 20 V. Features ● ● ● ● ● Temperature compensation. Wide operating voltage range. Open-Collector pre-driver. Reverse bias protection on power supply pin. o 100% at 125 C “Hot Test” Ordering Information Part No. TSH181CT B0G Package Packing TO-92S 1Kpcs / Bulk Bag Note: “G” denote for Halogen Free Product Application ● ● ● ● ● High temperature Fan motor 3 phase BLDC motor application Fan motor application Speed sensing Revolution counting Absolute Maximum Rating (Ta = 25oC unless otherwise noted) Characteristics Limit Value Unit Supply voltage VCC 20 V Output Voltage VOUT 30 V Reverse voltage VCC/OUT -20 V Unlimited Gauss mA Magnetic flux density Output current IOUT 25 Operating Temperature Range TOPR -40 to +125 Storage temperature range TSTG o C o C -55 to +150 o Maximum Junction Temp TJ 150 C Thermal Resistance - Junction to Ambient θJA 206 o Thermal Resistance - Junction to Case θJC 148 o Package Power Dissipation PD 606 C/W C/W mW Note: Do not apply reverse voltage to VCC and VOUT Pin, It may be caused for Miss function or damaged device. 1/7 Version: B13 TSH181 General Purpose Hall Effect Latch Block Diagram Typical Application Circuit C1：1000pF C2：15pF R1：10KΩ Electrical Specifications (DC Operating Parameters：TA=+25oC,VCC=12V) Parameters Test Conditions Min Typ Max Units 3.5 -- 20 V Supply Voltage Operating Supply Current B< BOP -- 4 8 mA Output Saturation Voltage IOUT = 10mA, B>BOP -- -- 700 mV Output Leakage Current IOFF B<BRP, VOUT = 12V -- -- 10 uA Output Rise Time RL=820Ω, CL =20pF -- -- 1.5 uS Output Fall Time RL=820Ω; CL =20pF -- -- 1.5 uS 2/7 Version: B13 TSH181 General Purpose Hall Effect Latch Magnetic Specifications Parameters Test Conditions Operate Point Release Point Hysteresis Min Typ Max Units 5 -90 -- --100 90 -5 -- Gauss Gauss Gauss Note: 1G (Gauss) = 0.1mT (millitesta) Output Behavior versus Magnetic Pole o DC Operating Parameters: TA = -40 to 125 C, VCC = 3.5 to 20V Parameter Test condition OUT North pole B>BOP Open South pole Low B<BRP TO-92S OUT=Open (Pull-up Voltage) OUT=Low (VDSon) 3/7 Version: B13 TSH181 General Purpose Hall Effect Latch Characteristic Performance Figure 1. Supply Voltage vs. Flux Density Figure 2. Temperature vs. Flux Density Figure 3. Supply Voltage vs. Output Voltage Figure 4. Temperature vs. Output Voltage Figure 5. Supply Voltage vs. Leakage Current Figure 6. Power Dissipation vs. Temperature 4/7 Version: B13 TSH181 General Purpose Hall Effect Latch Characteristic Performance Figure 7. Temperature vs. Supply Current Figure 8. Temperature vs. Power Dissipation 5/7 Version: B13 TSH181 General Purpose Hall Effect Latch TO-92S Mechanical Drawing Unit: Millimeters Marking Diagram 181 Y WW = Device Code = Year Code = Week Code (01~52) 6/7 Version: B13 TSH181 General Purpose Hall Effect Latch Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 7/7 Version: B13