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Table of contents for the manual
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Description The A132X family of linear Hall-effect sensors are optimized, sensitive, and temperature-stable. These ratiometric Hall-ef fect sensors provide a voltage output that is proportional to the applied magnetic field. The A132X family has a quiescent output voltage that is 50% of the supply voltage and output sensitivity options of 2.5mV/G, [...]
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recoverability after temperature cycling. Having the Hall element and an amplifier on a single chip minimizes many problems normally associated with low-level analog signals. Output precision is obtained by internal gain and offset trim adjustments made at end-of-line during the manufacturing process. The A132X family is provided in a 3-pin single [...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 3 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com DEVICE CHARACTERISTICS 1 over operating temperature (T A ) range, unless otherwise noted Characteristic Symbol T est Conditio[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 4 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com MAGNETIC CHARACTERISTICS 1,2 over operating temperature range, T A ; V CC = 5 V , I out = –1 mA; unless otherwise noted Cha[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 5 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Quiescent V oltage Output. In the quiescent state (no magnetic fi eld), the output equals one half of the supply voltage ove[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 6 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com T ypical Characteristics (30 pieces, 3 fabrication lots) Av erage Supply Current (I CC )v sT e m p e r a t u r e V cc =5V 0 0[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 7 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com T ypical Characteristics, continued (30 pieces, 3 fabrication lots) Av erage Absolute Quiescent Output Voltage, V out(q) , vs[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 8 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information Characteristic Symbol T est C[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 9 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Power Derating The device must be operated below the maximum junction temperature of the device, T J(max) . Under certain com[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 10 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Package LH, 3-Pin; (SOT -23W) T erminal List Symbol Number Description Package LH Package UA VCC 1 1 Connects power supply t[...]
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Ratiometric Linear Hall Ef fect Sensor for High-T emperature Operation A1321, A1322, and A1323 11 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Package UA, 3-Pin SIP For the latest version of this document, visit our website: www .allegromicro.com Copyright ©2004-200[...]