Plano, Texas – Diodes Incorporated (Diodes) today announces the release of the AHC1724Q and AHC1725Q automotive-compliant* Hall effect current sensors. Addressing the growing electric vehicle (EV) market and its expanding charging infrastructure, these sensors provide accurate, galvanically isolated AC and DC current measurements in applications including onboard chargers (OBC) and charging stations. Their ultra-low primary conductor resistance minimizes power loss, while their compact design enables smaller PCBs in space-constrained applications.
The AHC1724Q and AHC1725Q integrate a low-resistance copper conduction path and linear Hall sensor circuit. With a typical primary conductor resistance of just 1.2mΩ, the devices minimize power dissipation and withstand high inrush currents. Current measurement ranges extend up to ±50A, with uni-directional and bi-directional options available.
The electrically isolated primary conductive path and sensor enable high-side current sensing without high-side differential amplifiers or other costly isolation techniques. The AHC1724Q and AHC1725Q sensors support a 420VDC maximum working voltage for basic isolation according to UL 62368-1.
A low-offset, chopper-stabilized architecture with post-packaging trimming provides a precise output proportional to the measured current. The devices feature a 120kHz analog output bandwidth, with a typical response time of 4.0µs and typical propagation delay of 2.0µs, supporting fast detection of changing current conditions. The analog output is also ratiometric to the supply voltage.
The AHC1724Q operates from a 4.5V to 5.5V supply and supports current ranges from ±2.5A to ±50A. The AHC1725Q operates from 3.0V to 3.6V and supports current ranges from ±5A to ±50A. Both devices are supplied in a compact, low-profile SO-8 (Type CJ2) surface-mount package and operate in the -40°C to +150°C temperature range.
Standard-compliance versions, the AHC1724 and AHC1725, are also available and are suitable for industrial and commercial applications requiring accurate, galvanically isolated AC and DC measurements in harsh and high-temperature environments. Examples include switched-mode power supplies, load detection and management, HVAC systems, and overcurrent fault protection.
The AHC1724Q and AHC1725Q are shown for the first time at electronica 2026 (Hall C6, Booth 211) alongside other technologies from Diodes that help engineers improve power efficiency in automotive and industrial power architectures.
The AHC1724Q is priced at $1.30 and the AHC1725Q is priced at $2.20 in 4,000-piece quantities.
Further information about Diodes’ Hall effect sensor portfolio is available at: https://www.diodes.com/
