3501 ALLEGRO
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ALLEGRO MICROSYSTEMS INC BLE D M@@ 0504338 OO0b167 13T MALGR Utilizing the Hall effect for sensing a magnetic field, UGN3501U and UGN3501UA integrated circuits provide a linear single-ended output that is a function of magnetic field intensity. These devices can sense relatively small changes in a magnetic x > field — changes that are too small to operate a Hall effect switch. They can be capacitively coupled to an amplifier, to boost the output toa higher level.” The UGN3501U/UA include a Hall cell, linear amplifier, emitter- follower output, and a voltage regulator. Integrating the Hall cell and the amplifier into one monolithic device minimizes problems related to the handling of millivolt analog signals.
3 Both devices are rated for continuous operation over the tempera-
ture range of 0°C to +70°C and over a supply voltage range of 8V to12 V. > a 5 FEATURES ij z z z 2 = @ Excellent Sensitivity > vd 3 @ Flat Response to 25 kHz (typ.) ® 6 @ Internal Voltage Regulation wo. No. PH.006 ™ Excellent Temperature Stability Pinning is shown viewed from branded side. ABSOLUTE MAXIMUM RATINGS Supply Voltage, Veg ose. seee rece TEV Output Current, loyp <= eee eee 4A ting Temperature . Always order by complete part number: Tg eee e cece eee ee 65°C to 4150°C [waesrUA | 5m vie MS ES 4-48
| ALLEGRO MICROSYSTEMS INC BLE D MM 0504338 0006168 O7b MMALGR 3501 LINEAR OUTPUT HALL EFFECT SENSORS FUNCTIONAL BLOCK DIAGRAM ® output 4kQ @ GROUND Dg, No F008 ELECTRICAL CHARACTERISTICS at T, = +25°C, V,, = 12 V | cmnewes gma | rcnnnnn ama To] SO a [ BostandOupnnese |e, | onmerewe | 7 — [wv | [ouwanewane | Re | COC~sSC tw | NOTE 1. All output voltage measurements are made with a voltmeter having an input impedance of 10 kK or greater. NOTE 2. Magnetic flux density is measured at the most sensitive area of the device, which is 0.017" (0.43 mm) below the branded side of the “U" package; 0.020" (0.51 mm) below the branded side of the “UA" package. SS 4-49
ALLEGRO MICROSYSTEMS INC BLE D m@ 0504338 0006169 TO2 MBALGR 3501 LINEAR OUTPUT HALL EFFECT SENSORS NORMALIZED SENSITIVITY NORMALIZED SENSITIVITY AS A FUNCTION OF V,,, AS A FUNCTION OF TEMPERATURE BREA RARER EOROAERE iat > + tot pot Cer Dance gaiannaee 2” S Eva eon ii VTL ETT of ain P/E Ty tere HS
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Yee vous on Es ES % OUTPUT VOLTAGE AS A FUNCTION OUTPUT VOLTAGE OF MAGNETIC FLUX DENSITY AS A FUNCTION OF AIR GAP OTe TTT /& 7 \\ stasze P| teri “E+ Le a ae |-—+-_ a 4-50
ALLEGRO MICROSYSTEMS INC BLE D MM 0504338 0006170 724 MBALGR 3501 — _ +» NOISE SPECTRAL DENSITY AS A FUNCTION OF FREQUENCY A eee Na Ch nh COSC COUCH : ‘Dwg. No. A-10,5208 TYPICAL APPLICATIONS ; SENSITIVE PROXIMITY DETECTOR FERROUS METAL SENSOR . FERROUS =\\ _. nS a¢3 ee a 10 mv i i s D=0.250° N LOBE OR COG SENSOR NOTCH OR HOLE SENSOR UP Sa ae Sure. "A camara cabal permanent magnet NGO" Sk cy Sa a aoe Ga oe eae las soporte 800 gauss at the