TSH181

General Purpose Hall Effect Latch

1/7

Version: B13

TO-92S

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 125

Ordering Information

Part No.

Package

Packing

TSH181CT B0G

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

Characteristics

Limit

Value

Unit

Supply voltage

20

V

Output Voltage

30

V

Reverse voltage

-20

V

Magnetic flux density

Unlimited

Gauss

Output current

25

mA

Operating Temperature Range

-40 to +125

Storage temperature range

-55 to +150

Maximum Junction Temp

150

Thermal Resistance - Junction to Ambient

θ

JA

206

Thermal Resistance - Junction to Case

θ

JC

148

Package Power Dissipation

606

mW

Pin Definition:

2. GND

3. Output