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UNISONIC TECHNOLOGIES CO., LTD U18
BIPOLAR LATCH TYPE HALL-EFFECT FOR HIGH-TEMPERARURE OPERATION
DESCRIPTION
U18 is a semiconductor integrated circuit utilizing the Hall effect. It has been so designed as to operate in the alternating magnetic field especially at low supply voltage and operation over extended temperature ranges to +125℃.This Hall IC is suitable for application to various kindsof sensors, contact less switches, and the like.

LINEAR INTEGRATED CIRCUIT

1 SIP-3

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Package SIP-3

APPLICATION
* Speed sensor * Position sensor * Rotation sensor * Contact-less sensor * Motor control * Built-in protection diode

ORDERING INFORMATION

Order Number Normal Lead Free Plating U18-G03-D-K U18L-G03-D-K

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G:GND
(1)Packing Type (2)PinAssignment (3)Package Type (4)Lead Plating

ce. c
Pin Assignment 1 2 3 I G O Packing Bulk 1 of 6
QW-R118-007,A

* Wide supply voltage range of 2.5V to 20V * Wide temperature operation range of -20℃~+125℃ * Alternating magnetic field operation * TTL and MOS IC are directly drivable by the output * The life is semipermanent because it employs contact less parts * SIP-3 package

Note: PinAssignment: I:VCC O:VOUT
U 1 8 L -G 0 3 -D - K

(1) K: Bulk (2) refer to Pin Assignment (3) G03: SIP-3 (4) L: Lead Free Plating, Blank: Pb/Sn

www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd

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FEATURES

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*Pb-free plating product number: U18L

U18
MARKING INFORMATION

LINEAR INTEGRATED CIRCUIT

SIP-3 U18

L: Lead Free Plating Blank: Pb/Sn ,

BLOCK DIAGRAMREGULATOR

Vcc Output

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Schmidt trigger

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GND
2 of 6
QW-R118-007,A

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www.unisonic.com.tw

UNISONIC TECHNOLOGIES CO., LTD

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Hall element

Amplifier

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Output stage

U18
ABSOLUTE MAXIMUM RATINGS

LINEAR INTEGRATED CIRCUIT

PARAMETER SYMBOL RATING UNIT Supply Voltage VCC 2.5V ~ 20V V Supply Current ICC 10 mA Circuit CurrentIOUT 20 mA Power Dissipation PD 400 mW Operating Temperature TOPR -20~+125 ℃ Storage Temperature TSTG -40~+150 ℃ Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. The device is guaranteed to meet performance specification within 0℃~+70℃ operatingtemperature range and assured by design from -20℃~+125℃.

ELECTRICAL CHARACTERISTICS (Ta=25℃)
PARAMETER Low-Level Output Voltage Output Leakage Current Output Short Circuit Current Supply Current SYMBOL VOL IO(LEAK) -Ios ICC CONDITIONS VCC=16V,IOUT=12mA,B=30mT VCC=3.6V,IOUT=12mA,B=30mT VCC=16V,B=-30mT VCC=16V,VOUT=0V,B=-30mT VCC=16V VCC=3.6V MIN TYP MAX 0.7 0.7 10 6 5.5 UNIT V V µA mA mA mA mTmT mT

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1 0.8

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UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw

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MAGNETIC CHARACTERISTICS Operate Point BOP At Ta = +25℃ 5 Release Point BRP At Ta = +25℃ -5 Hysteresis BHYS At Ta = +25℃ 5.5 Note 1.BOP = operate point (output turns ON ); BRP = release point ( output turns OFF); BHYS = hysteresis (BOP –BRP).As used here, negative flux densities are definedas less than zero (algebraic convention). Typical values are at Ta = +25℃ and VCC = 12V. 2.1mT=10 gauss

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3 of 6
QW-R118-007,A

U18
PACKAGE INFORMATION

LINEAR INTEGRATED CIRCUIT

SIP-3
4.1 mm 0.95 mm 3.0 mm

2.01 mm

Fig. 1 SENSOR LOCATIONS

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H

Marked face
3

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SIP-3

1

2

1. Vcc 2. GND 3. Output

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Brp

S

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Vout Bh LBop
4 of 6
QW-R118-007,A

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www.unisonic.com.tw

Fig. 2 APPLYING DIRECTION OF MAGNETIC FLUX

UNISONIC TECHNOLOGIES CO., LTD

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0 Magnetic flux density

U18
TYPICAL CHARACTERISTICS

LINEAR INTEGRATED CIRCUIT

Temperature vs. Magnetic field 60 Magnetic field ( G ) 46 47 49 42 43 44 41 42 44 37 38 35 31 32 36 37 39 29 Bop Brp BW -6 -6 -6 -6 -6 -5 -5 -5 -5...
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