UNI SONI C TECHNOLOGI ES CO., LTD

UHS41

Preliminary

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

1 of 4

Copyright © 2018 Unisonic Technologies Co., Ltd

QW-R118-021.c

H ALL-EFFECT LAT CH ED

SEN SOR



DESCRI PT I ON

The UTC UHS41 is an integrated Hall effect latched sensor

designed for electronic commutation of brush-less DC motor

applications. The device includes a voltage regulator, reverse

battery

protection

diode,

Hall

sensor

with

dynamic

offset

cancellation system, temperature compensation circuitry, small

signal amplifier, Schmitt trigger and an open-collector output to sink

up to 25mA.

These Hall-effect switches are monolithic integrated circuits with

tighter magnetic specifications, and are more stable with both

temperature and supply voltage changes. If a magnetic flux density

larger than threshold Bop, Output is turned on (low). The output

state is held until a magnetic flux density reversal falls below Brp,

causing Output to be turned off (high).

Thanks to its wide operating voltage range and extended choice

of temperature range, it is quite suitable for use in DC motor

applications. It also can be used for Automotive, Consumer and

Industrial, Solid-state switch, Speed measurement, Revolution

counting, Angular position detection and Proximity detection.



FEAT U RES

* wide operating voltage range：4.5V~24V

* Wide ambient temperature range: –40°~+125°C

* Bipolar technology

* Open-collector 25mA output

* Reverse battery protection

* Solid-state reliability

* Resistant to physical stress

* Activate with small, commercially available permanent magnets

SOT-23

(EIAJ SC-59)

2

1

3

SIP-3

1

 ORDERING INFORMATION

Ordering Number

Pin Assignment

Lead Free

Halogen Free

Package

1

2

3

Packing

UHS41L-AE3-R

UHS41G-AE3-R

SOT-23

I

O

G

Tape Reel

UHS41LG03-B

UHS41G-G03-B

SIP-3

I

G

O

Tape Box

UHS41LG03-K

UHS41G-G03-K

SIP-3

I

G

O

Bulk

Note:

O: Output

G: GND