TSH181General Purpose Hall Effect Latch Pin Definition: 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. • 100% at 125oC “Hot Test” Ordering Information Part No. 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) Note: Do not apply reverse voltage to VCC and VOUT Pin, It may be caused for Miss function or damaged device.

TAIWAN SEMICONDUCTOR TSH181General Purpose Hall Effect Latch Block Diagram Typical Application Circuit Electrical Specifications (DC Operating Parameters : Ta=+25oC,Vcc=12V)

TAIWAN SEMICONDUCTOR TSH181General Purpose Hall Effect Latch Magnetic Specifications Parameters Note: 1G (Gauss) = 0.1mT (millitesta) Output Behavior versus Magnetic Pole DC Operating Parameters: TA = -40 to 125oC, VCc = 3.5 to 20V

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

Characteristic Performance TSH181General Purpose Hall Effect Latch 300 Temper ature( tC) Figure 8. Temperature vs. Power Dissipation

TSH181 General Purpose Hall Effect Latch Unit: Millimeters = Device Code = Year Code = Week Code (01~52)

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