JSMSEMI ACS712ELCTR-20A-T-JSM

The ACS712 is a high-performance Hall-effect current sensor capable of measuring AC or DC current with greater efficiency, widely used in industrial, consumer, and communications equipment. The series 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 current path, the resulting magnetic field induces a corresponding electrical signal in the Hall circuit, which is processed by the signal conditioning circuitry to produce a voltage output 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. With no magnetic field present, the quiescent output of the current sensor is 50% Vcc. At a supply voltage of 5V, the sensor quiescent output varies linearly with the magnetic field in the range of 0.2 ~ 4.8V, with a linearity of up to 0.4%. The dynamic offset cancellation circuit integrated within the ACS712 ensures that sensor sensitivity is unaffected by external stress or IC package-induced stress. It is available in an SOP8 package, operates over a temperature range of -40 ~ 150°C, and is RoHS compliant.

• Supply 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
• High noise immunity
• 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