ACS712-05 5V 5A Hall-Effect-Based Current Sensor IC

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ACS712-05 consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. The Hall IC transforms the magnetic field created by the applied current flowing via this copper conduction route into a proportionate voltage. The magnetic signal's near proximity to the Hall transducer improves device precision. The low-offset, chopper-stabilized Bi-CMOS Hall IC, which is configured for precision after packaging, delivers a precise, proportional voltage.
When an increasing current flows along the primary copper conduction path, which is the path utilised for current sampling (from pins 1 and 2, to pins 3 and 4), the output of the device has a positive slope (>VIOUT(Q)). This conductive channel typically has an internal resistance of 1.2 mΩ, which results in minimal power loss. The gadget can survive under conditions of up to a 5-fold overcurrent thanks to the thickness of the copper conductor. The signal leads (pins 5 through 8) are electrically insulated from the terminals of the conductive path. As a result, opto-isolators or other expensive isolation methods are not necessary when using the ACS712 in applications that call for electrical isolation.
The ACS712 is provided in a small, surface mount SOIC8 package. A normal lead (Pb)-free printed circuit board assembly technique is compatible with the lead-frame's plating because it is made entirely of matte tin. Except for the flip-chip high-temperature Pb-based solder balls, which are currently exempt from RoHS, the device is Pb-free internally.

Features :-

  • Low-noise analog signal path
  • Device bandwidth is set via the new FILTER pin
  • Total output error 1.5% at TA= 25°C
  • Small footprint, low-profile SOIC-8 package
  • 1.2 mΩ internal conductor resistance
  • 2.1 kVrms minimum isolation voltage from pins 1-4 to pins 5-8
  • 5.0 V, single supply operation
  • 66 to 185 mV/A output sensitivity
  • Output voltage proportional to AC or DC currents
  • Factory-trimmed for accuracy
  • Extremely stable output offset voltage
  • Nearly zero magnetic hysteresis
  • Ratio metric output from supply voltage

Applications :-

  • Motor control
  • Load detection and management
  • Switch-mode power supplies
  • Overcurrent fault protection
Parameter Values
Model ACS712-05
Supply Voltage 5.0 V
Supply current 5 A
Primary Conductor Current 1.2mOhm
Frequency Bandwidth 80kHz
Rise Time 5us
Output Capacitance Load 10nF
Power-On Time 35us
Optimized Accuracy Range -20A - 20A
Package SMD
Quantity 100
Country of Origin China

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