Allegro MicroSystems ACS37035 AEC-Q100 1MHz Hall-Effect Current Sensor
Allegro MicroSystems ACS37035 AEC-Q100 1MHz Hall-Effect Current Sensor is ideal for high-frequency switching applications, serving as a superior alternative to bulky and less efficient current transformers. This sensor integrates a sensing element and signal processing into a small SOIC-16 wide-body package, reducing both bill-of-materials and PCB space and improving the overall design quality and efficiency. Two Hall plates are utilized for differential sensing, effectively subtracting interfering common-mode magnetic fields for robust performance in loud environments. Additionally, the low internal resistance of typically 1mΩ on the conductive path contributes to minimal power loss and increased efficiency in applications. Allegro MicroSystems ACS37035 Sensor is suitable for xEV onboard chargers, xEV DC-DC, and server power supplies.
Features
- High operating bandwidth for fast control loops
- High performance for optimized energy applications
- Ratiometric operation
- Differential sensing for high immunity to external magnetic fields
- No magnetic hysteresis
- Adjustable fast overcurrent fault
- Low internal primary conductor resistance
- High-withstand surge power ratings
Applications
- Motor control
- Load detection and management
- Switch-mode power supplies
- xEV onboard chargers
- xEV DC-DC
Specifications
- AEC-Q100 Grade 1 compliant
- 1MHz bandwidth
- 0.45µs typical response time
- ±1.5% sensitivity error over temperature
- ±10mV maximum offset voltage over temperature
- 0.5µs typical response time (overcurrent fault)
- UL 62368 certification
- Highly isolated compact SOICW-16 surface-mount package
- 4242VRMS rated withstand voltage
- 1000VRMS /1414VDC basic isolation
- 500VRMS /707VDC reinforced isolation
- -40°C to +125°C operating temperature range
Application Circuit
