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

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

Specifications