General Purpose Hall Effect Latch
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.
● Temperature compensation.
● Wide operating voltage range.
● Open-Collector pre-driver.
● Reverse bias protection on power supply pin.
● 100% at 125oC “Hot Test”
TSH181CT B0G TO-92S 1Kpcs / Bulk Bag
Note: “G” denote for Halogen Free Product
● High temperature Fan motor
● 3 phase BLDC motor application
● Fan motor application
● Speed sensing
● Revolution counting
Absolute Maximum Rating (Ta = 25oC unless otherwise noted)
Magnetic flux density
IOUT 25 mA
Operating Temperature Range
Storage temperature range
Maximum Junction Temp
-40 to +125
-55 to +150
Thermal Resistance - Junction to Ambient
θJA 206 oC/W
Thermal Resistance - Junction to Case
θJC 148 oC/W
Package Power Dissipation
PD 606 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