Broadcom ACHS-7121
the ACHS-7121/7122/7123 consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. The output of the device has a positive slope (>VOUT(Q)) when an increasing current flows through the primary copper conduction path (from pins 1 and 2, to pins 3 and 4), which is the path used for current sampling.| Part No. | ACHS-7121 |
|---|---|
| Datasheet | ACHS-7121 Download |
| Manufacturer |  Broadcom |
| Description | Hall Effect-Based Linear Current Sensor |
| Buy | Stock & Price |
FEATURES
● Wide Operating Temperature: –40ºC to 110ºC● Primary conductor resistance: 0.7 mΩ typ.
● Sensing current range: ±10A, ±20A, and ±30A
● Output sensitivity: 66 to 185 mV/A
● Output voltage proportional to AC or DC currents
● Ratiometric output from supply voltage
● Single supply operation: 5.0V
● Low-noise analog signal path
● Device bandwidth is set via FILTER pin: 80 kHz typ. Bandwidth with 1 nF filter capacitor
● Factory-trimmed for accuracy
● Extremely stable output offset voltage
● Near zero magnetic hysteresis
● Typical total output error of ±1.5%
● >25 kV/μs Common-Mode Transient Immunity
● Small footprint, low-profile SO-8 package
● Worldwide Safety Approval: UL, CSA: Isolation Voltage 3 kVRMS, 1 minute
APPLICATIONS
● Low-power inverter current sensing● Motor phase and rail current sensing
● Solar inverters
● Chargers and Converters
● Switching Power Supplies CAUTION! It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD.
