JSMSEMI ACS712ELCTR-05B-T-JSM

The ACS712 is a high-performance Hall-effect current sensor capable of measuring both AC and DC currents, widely used in industrial, consumer, and communications equipment. The device integrates a high-precision, low-noise linear Hall circuit and a low-resistance primary current-carrying conductor. When the sampled current flows through the primary conductor, the resulting magnetic field induces a corresponding electrical signal in the Hall circuit; the signal conditioning circuit then outputs a voltage signal strictly proportional to the measured current. The linear Hall circuit is fabricated using an advanced BCDMOS process and incorporates a high-sensitivity Hall sensor, Hall signal preamplifier, high-precision Hall temperature compensation unit, oscillator, dynamic offset cancellation circuit, and amplifier output stage. In the absence of a magnetic field, the quiescent output of the current sensor is 50% Vcc. With a 5V supply voltage, the sensor output varies linearly with the magnetic field over the range of 0.2 ~ 4.8V, with a linearity of up to 0.4%. The integrated dynamic offset cancellation circuit ensures that the sensor sensitivity is unaffected by external mechanical stress or IC package stress. The ACS712 is available in an SOP8 package, operates over a temperature range of -40 ~ 150°C, and is RoHS compliant.

• Operating voltage: 4.5V ~ 5.5V
• Quiescent common-mode output: 50% Vcc
• Wide measurement range: 5A / 20A / 30A
• Isolation voltage: 2500V
• High bandwidth: 120kHz
• Output response time: 4μs (typical)
• In-range stability: 1.5% @ 25°C ~ 150°C; 1% @ -40°C ~ 25°C
• Low-noise analog signal path
• Strong immunity to interference
• High mechanical stress resistance — magnetic parameters unaffected by external pressure
• ESD (HBM): 5kV
• Operating temperature: -40°C ~ 150°C
• RoHS compliant: (EU) 2015/863

• Inverter current sensing
• Motor phase current sensing (motor control)
• Photovoltaic inverters
• Battery load detection systems
• Current transformers
• Switching power supplies
• Overload protection devices