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ACS713TELC-20/30A
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The Allegro
?
ACS713 provides economical and precise
solutions for DC current sensing in industrial, automotive,
commercial, and communications systems. The device
package allows for easy implementation by the customer.
Typical applications include motor control, load detection and
management, switched-mode power supplies, and overcurrent
fault protection.
The device consists of a precise, low-offset, linear Hall
sensor circuit with a copper conduction path located near the
surface of the die. Applied current flowing through this copper
conduction path generates a magnetic field which is sensed
by the integrated Hall IC and converted into a proportional
voltage. Device accuracy is optimized through the close
proximity of the magnetic signal to the Hall transducer. A
precise, proportional voltage is provided by the low-offset,
chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging.
? Low-noise analog signal path
? Device -3 dB point is set via the new FILTER pin
? Total output error 1.5% at T
A
= 25°C, 4% at -40°C to 85°C
? Small footprint, low-profile SOIC8 package
? 1.2 mΩ internal conductor resistance
? 2.1 kV
RMS
minimum isolation voltage from
pins 1-4 to pins 5-8
? 5.0 V, single supply operation
? 50 kHz bandwidth
? 133 to 185 mV/A output sensitivity
? 5 μs output rise time in response to step input current
? Output voltage proportional to sensed DC current
? Factory-trimmed for accuracy
? Extremely stable output offset voltage
? Nearly zero magnetic hysteresis
? Ratiometric output from supply voltag
? Ratiometric output from supply voltag