ACS758xCB Thermally Enhanced, Fully Integrated, Hall-Effect-Based Linear Current Sensor IC with 100 Current Conductor Not for New Design These parts are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available. Date of status change: June 5, 2017 Recommended Substitutions: For existing customer transition, and for new customers or new appli- cations, use ACS770xCB or ACS772xCB. NOTE: For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative. Allegro MicroSystems reserves the right to make, from time to time, revisions to the anticipated product life cycle plan for a product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The infor- mation included herein is believed to be accurate and reliable. However, Allegro MicroSystems assumes no responsibility for its use nor for any infringements of patents or other rights of third parties which may result from its use.ACS758xCB Thermally Enhanced, Fully Integrated, Hall-Effect-Based Linear Current Sensor IC with 100 Current Conductor FEATURES AND BENEFITS DESCRIPTION Industry-leading noise performance through proprietary The Allegro ACS758 family of current sensor ICs provides amplifier and filter design techniques economical and precise solutions for AC or DC current sensing. Integrated shield greatly reduces capacitive coupling Typical applications include motor control, load detection and from current conductor to die due to high dV/dt signals, management, power supply and DC-to-DC converter control, and prevents offset drift in high-side, high-voltage inverter control, and overcurrent fault detection. applications The device consists of a precision, low-offset linear Hall Total output error improvement through gain and offset circuit with a copper conduction path located near the die. trim over temperature Applied current flowing through this copper conduction path Small package size, with easy mounting capability generates a magnetic field which the Hall IC converts into a Monolithic Hall IC for high reliability proportional voltage. Device accuracy is optimized through the Ultralow power loss: 100 internal conductor close proximity of the magnetic signal to the Hall transducer. resistance A precise, proportional output voltage is provided by the Galvanic isolation allows use in economical, high-side low-offset, chopper-stabilized BiCMOS Hall IC, which is current sensing in high-voltage systems programmed for accuracy at the factory. AEC-Q100 qualified High-level immunity to current conductor dV/dt and stray Continued on the next page electric fields, offered by Allegro proprietary integrated shield technology, provides low output voltage ripple and low offset TV America UL Certified File Certificate Number: drift in high-side, high-voltage applications. No.: US-29755-UL U8V 15 05 54214 037 The output of the device has a positive slope (>V / 2) when an CC increasing current flows through the primary copper conduction PACKAGE: 5-Pin CB Package path (from terminal 4 to terminal 5), which is the path used for current sampling. The internal resistance of this conductive path is 100 typical, providing low power loss. The thickness of the copper conductor allows survival of the device at high overcurrent conditions. The terminals of the conductive path are electrically isolated from the signal leads PFF PSF PSS Continued on the next page Leadform Leadform Leadform +3.3 or 5 V 1 4 VCC IP+ C BYP ACS758 0.1 F 2 I GND P C F 5 IP 3 VIOUT V OUT R F Application 1: The ACS758 outputs an analog signal, V , OUT that varies linearly with the uni- or bi-directional AC or DC primary sampled current, I , within the range specified. C is P F for optimal noise management, with values that depend on the application. Typical Application ACS758-DS, Rev. 14 May 31, 2019 MCO-0000203