Products Overview
ACS724/ACS725 ISOLATED CURRENT SENSOR
Allegro MicroSystems
ACS724 and ACS725: High-Accuracy, Isolated Current Sensor with Stray Field Rejection
The Allegro ACS724/ACS725 family of current sensor ICs are economical and precise solutions for AC or DC current sensing in industrial, automotive, consumer, and communications systems. They are offered in multiple compact packages with a high level of integration that fits various application needs. These devices consist of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field that is sensed by the integrated Hall IC and converted into a proportional voltage. The current is sensed differentially in order to reject stray fields, improving accuracy in magnetically noisy environments. The current conductor is inherently isolated from the device signal leads due to its internal structure which results in a high isolation voltage rating for the various offered packages. All of these devices offer very low ohmic losses as low as 265 µΩ.
The ACS724/ACS725 devices are provided in small, low-profile surface-mount SOIC8 (LC) and custom SOIC16 packages (MA and MC). The leadframe is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes.
The MA and LC packages offer high isolation voltage with a maximum nominal current of 50 A, while the MC (20 Mil) package offers up to 90 A nominal current measurement. These current ratings vary depending on the ambient operating temperatures.
| Part Number | Output Type | Frequency | Current Rating | Operating Supply Voltage | Response Time | Moisture Sensitive | Isolation Voltage | Operating Temperature | Supply Voltage | Package Type |
|---|---|---|---|---|---|---|---|---|---|---|
| ACS724 | Analog | 120 kHz | 20A | 5 V | 4µs | Yes | 24,004,800 | -40 °C ~ 125 °C(TA) | 5 V | 8-Pin SOIC,16-pin SOICW |
| ACS725 | Analog | 120 kHz | 20A | 5 V | 4µs | Yes | 24,004,800 | -40 °C ~ 125 °C(TA) | 3.3 V | 8-Pin SOIC,16-Pin SOICW,16-Pin SOIC |
Main Products
Allegro Micro Systems
A33115 Precision TMR Angle Sensor
360° angle sensor that provides high-resolution angular position information.
Current Sensor
Integrated shield virtually eliminates capacitive coupling from current conductor to die, greatly suppressing output noise due to high dv/dt transients.
A31010 Unidirectional Linear Hall-Effect Sensors
Provide a voltage output proportional to the applied magnetic field.
A89506 Full-Bridge PWM Gate Driver
Ideal for DC motors and actuators in conventional, hybrid, and electric vehicles.
Brushless DC Drivers
Engineered to meet market challenges, delivering cost-optimized systems and improved time-to-market.
Brush DC Drivers
Broad portfolio of safe and robust brush DC solutions with both integrated and MOSFET gate drivers.
Stepper Motor Drivers
Delivers quiet, efficient, smooth motion to minimize noise and vibration in stepper motor designs.
Sensor Interface ICs
Allegro’s interface sensor ICs for speed and pressure sensors deliver fast and accurate output ideal for today’s demanding, space-constrained automotive and industrial applications.
Industrial Regulators
Allegro’s multiple-output DC/DC regulators enable smart and robust industrial designs.
Devoted to Excellent Professional Technical Support Throughout the Supply Chain
Everstar currently serves global semiconductor brands, including Allegro, AOS, Vincotech, and SHARP photocoupler, to offer products with complementary features. The products we carried integrate magnetic sensor chips, motor driver chips, power components, power modules, etc., to offer an extensive hardware infrastructure system design solution. The product applications focus on cloud server power suppliers, server cooling fan motor drivers, automotive power supply systems, LED lights, industrial motors, etc., targeted to broadly cover our customers' needs.
