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UH4921

UTC
Part Number UH4921
Manufacturer UTC
Description DYNAMIC DIFFERENTIAL HALL EFFECT SENSOR
Published Apr 19, 2020
Detailed Description UNISONIC TECHNOLOGIES CO., LTD UH4921 Preliminary LINEAR INTEGRATED CIRCUIT DYNAMIC DIFFERENTIAL HALL EFFECT SENSOR ...
Datasheet PDF File UH4921 PDF File

UH4921
UH4921

Overview
UNISONIC TECHNOLOGIES CO.
, LTD UH4921 Preliminary LINEAR INTEGRATED CIRCUIT DYNAMIC DIFFERENTIAL HALL EFFECT SENSOR IC WITH DIGITAL SIGNAL OUTPUT  DESCRIPTION The differential Hall Effect sensor UTC UH4921 provides a superior stability and a high sensitivity over temperature and symmetrical thresholds in order to achieve a stable duty cycle.
The integrated circuit provides a digital signal output with frequency proportional to the speed of rotation.
Unlike other rotational sensors differential Hall ICs are not influenced by radial vibration within the effective airgap of the sensor and require no external signal processing.
UTC UH4921 is particularly suitable for rotational speed detection and timing applications of ferromagnetic toothed wheels such as anti-lock braking systems, transmissions, crankshafts, etc.
 FEATURES * Digital output signal * Low cut-off frequency * High sensitivity * Symmetrical thresholds * Reduced power consumption * AC coupled * Output protection against electrical disturbances * Large temperature range * Large airgap * Protection against overvoltage * Protection against reversed polarity * Two-wire and three-wire configuration possible * Advanced performance * South and north pole pre-induction possible * High piezo resistivity  ORDERING INFORMATION Ordering Number UH4921G-G04-K Package SIP-4 Packing Bulk  MARKING www.
unisonic.
com.
tw Copyright © 2015 Unisonic Technologies Co.
, Ltd 1 of 5 QW-R118-025.
b UH4921 Preliminary LINEAR INTEGRATED CIRCUIT  PIN DESCRIPTION PIN NO.
1 2 3 4 PIN NAME VS Q GND C Supply voltage Output Ground Capacitor DESCRIPTION  BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO.
, LTD www.
unisonic.
com.
tw 2 of 5 QW-R118-025.
b UH4921 Preliminary LINEAR INTEGRATED CIRCUIT  ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage (Note 1) Output Voltage VS 30 V VQ -0.
7 ~ 30 V Output Current Output Reverse Current IQ 50 mA -IQ 50 mA Capacitor Voltage Current Through Input-Protecti...


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