ACS730KLC Current Sensor IC

By Allegro MicroSystems, LLC 123

ACS730KLC Current Sensor IC

The ACS730 current sensor IC is Allegro MicroSystems' first-ever 1 MHz bandwidth Hall effect current sensor IC with a lighting-fast 210 ns response time. The ACS730 provides an economical and precise solution for AC or DC current sensing in industrial, commercial, and communications systems. The device is targeted at high-speed applications, including motor control, solar inverters, load detection and management, and switched-mode power supplies. These devices are not for use in automotive applications.

The device is available in a small SOIC8 footprint package with isolation, that is ideal for space-constrained applications while also saving costs due to reduced board area.

  • Wide operating bandwidth: 1 MHz options
  • Fast 250 ns typical response time
  • Improved accuracy:
    • 3% total error from -40°C to +125°C
    • Non-ratiometric output
    • Electrostatic shield for dv/dt events
    • Very low noise: 40 µA/√Hz
  • Wide operating temperature ranges:
    • -40°C to +125°C for commercial
    • -40°C to +150°C for automotive Grade 0
  • Low primary conductor resistance and inductance: 1.2 mΩ and 4.45 nH
  • High isolation:
    • Dielectric withstand voltage: 2.1 kVRMS
    • Basic working voltage: 1600 VPK/DC
  • Compact SOIC8/LC SMT package
    • Typ. footprint: 4.9 mm x 6.0 mm
    • Typ. body size: 4.9 mm x 3.9 mm
    • Max height: 1.75 mm