{"id":7239,"date":"2026-06-23T07:51:05","date_gmt":"2026-06-23T07:51:05","guid":{"rendered":"https:\/\/materialparts.com\/acs733klatr-40ab-t\/"},"modified":"2026-06-23T07:51:05","modified_gmt":"2026-06-23T07:51:05","slug":"acs733klatr-40ab-t","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/acs733klatr-40ab-t\/","title":{"rendered":"ACS733KLATR-40AB-T"},"content":{"rendered":"

Productos<\/h2>\n

The ACS733KLATR-40AB-T from Allegro MicroSystems is a 40A Hall-effect current sensor IC in a SOIC-16 package. With 2.1kV isolation and 120kHz bandwidth, it provides galvanically isolated AC\/DC current measurement with ratiometric analog output.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n
Current Range<\/td>\n+\/-40 A<\/td>\n<\/tr>\n
Sensitivity<\/td>\n33 mV\/A (typical)<\/td>\n<\/tr>\n
Tensi\u00f3n de aislamiento<\/td>\n2100 Vrms<\/td>\n<\/tr>\n
Bandwidth<\/td>\n120 kHz<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n3.0 V to 3.6 V<\/td>\n<\/tr>\n
Output Type<\/td>\nRatiometric analog (0.5x VCC at 0A)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • +\/-40A current range with 33mV\/A sensitivity for motor drive sensing<\/li>\n
  • 2100Vrms galvanic isolation for safety-rated high-voltage measurement<\/li>\n
  • 120kHz bandwidth supports switching current waveform monitoring<\/li>\n
  • 3.3V single supply with ratiometric output for direct ADC connection<\/li>\n
  • Integrated conductor eliminates external shunt resistor and isolation amplifier<\/li>\n
  • AEC-Q100 qualified for automotive current sensing applications<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Motor drive and inverter current sensing at +\/-40A<\/li>\n
    • Automotive HEV\/EV battery current monitoring<\/li>\n
    • Solar inverter current measurement with 2.1kV isolation<\/li>\n
    • Industrial UPS and power supply load current monitoring<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ACS733KLATR-40AB-T from Allegro MicroSystems is a 40A Hall-effect current sensor IC in a SOIC-16 package. With 2.1kV isolation and 120kHz bandwidth, it provides galvanically isolated AC\/DC current measurement with ratiometric analog output. Key Specifications Current Range +\/-40 A Sensitivity 33 mV\/A (typical) Isolation Voltage 2100 Vrms Bandwidth 120 kHz Supply Voltage 3.0 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,51],"tags":[],"chip_brand":[176],"class_list":["post-7239","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-optocouplers-photocouplers","chip_brand-allegro"],"acf":{"brief_explanation":"40A Hall current sensor, 33mV\/A, 2.1kV isolation, 120kHz, SOIC-16, 3.3V, AEC-Q100","date_code":"","package_case":"SOIC-16 (10.30 x 7.50 x 2.35 mm, wide body)","in_stock":7411,"datasheet":"https:\/\/www.allegromicro.com\/en\/products\/sense\/current-sensor-ics\/zero-to-fifty-amp-integrated-conductor-sensor-ics\/acs733","price":"$3.50 @ 1ku","product_introduction":"The ACS733KLATR-40AB-T from Allegro MicroSystems is a fully integrated Hall-effect current sensor IC in a SOIC-16 wide-body package. The device provides galvanically isolated AC\/DC current measurement through an integrated primary conductor that carries the current to be measured. The magnetic field generated by the current is sensed by a Hall-effect element and converted to a proportional analog output voltage with 33mV\/A sensitivity. The +\/-40A measurement range with 2.1kVrms isolation voltage makes the device suitable for motor drive, inverter, and battery monitoring applications where high-voltage isolation is required. The 120kHz bandwidth supports monitoring of switching current waveforms in PWM-driven motor drives and switch-mode power supplies. The 3.3V single supply operation is compatible with modern 3.3V ADCs and microcontrollers. The ratiometric output means the output voltage is proportional to the supply voltage (0.5 x VCC at zero current), which minimizes errors from supply voltage variation when the ADC reference is derived from the same supply.","working_principle":"The ACS733KLATR-40AB-T uses Hall-effect sensing with an integrated primary conductor. (1) Primary Conductor: The current to be measured flows through an internal copper conductor (IP+ to IP- pins). This conductor is electrically isolated from the sensing circuitry by the IC molding compound, providing the 2.1kVrms galvanic isolation barrier. (2) Hall Sensing: The current flowing through the primary conductor generates a magnetic field proportional to the current amplitude. A Hall-effect element positioned adjacent to the conductor converts this magnetic field into a small voltage signal. (3) Signal Processing: The Hall voltage is amplified, filtered, and offset-corrected by integrated circuitry. The output stage produces a ratiometric analog voltage: VOUT = (0.5 x VCC) + (Sensitivity x IP), where IP is the primary current. At zero current, the output sits at mid-supply (0.5 x 3.3V = 1.65V). (4) Isolation: The primary conductor and the sensing circuit are separated by the IC package molding compound, which provides the 2.1kVrms dielectric isolation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-3<\/td>IP+<\/td>Input<\/td>Primary current input (common)<\/td><\/tr>
      4-6<\/td>IP-<\/td>Output<\/td>Primary current output (common)<\/td><\/tr>
      7<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      8<\/td>VIOUT<\/td>Output<\/td>Analog output voltage<\/td><\/tr>
      9-11<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      12<\/td>VCC<\/td>Power<\/td>3.3V supply<\/td><\/tr><\/table>","application_scenarios":"
      • Motor drive and inverter current sensing at +\/-40A with 120kHz bandwidth<\/li>
      • Automotive HEV\/EV battery current monitoring with AEC-Q100 qualification<\/li>
      • Solar inverter current measurement with 2.1kV galvanic isolation<\/li>
      • Industrial UPS and power supply load current monitoring at 3.3V supply<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Allegro<\/td>ACS724KLATR-40AB-T<\/td>SOIC-16<\/td>5V version of same device<\/td><\/tr>
        Allegro<\/td>ACS37800LAZA-010T0<\/td>QSOP-16<\/td>Power monitor, 1A-30A<\/td><\/tr>
        Melexis<\/td>MLX91211LDC-CAV-000-RE<\/td>SOIC-8<\/td>Hall current sensor, 3.3V<\/td><\/tr>
        LEM<\/td>HO 50-NP-0000<\/td>PCB mount<\/td>50A, external sensor<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=7239"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7239\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7239"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}