سنسور و مبدل سنسور جریان

Product Attributes

Introduction

The ACS758 series is an open-loop current sensor module based on the Hall effect principle, providing an economical and accurate solution for AC or DC current sensing. It is widely used in industrial, commercial, and communication systems for AC or DC current detection. Typical applications include motor control, load detection and management, power supplies and DC-DC converters, photovoltaic inverters, UPS, overcurrent protection, and current sensing in medium- and low-power variable frequency drives.

The ACS758 consists of a high-precision, low-noise, low-temperature-drift linear Hall IC, a magnetic core, and a low insertion resistance (0.12mΩ) current conductor path located near the surface of the die. The applied current flowing through this conductor path generates a magnetic field, which the IC converts into a voltage output proportional to the input current.

The ACS758 output voltage is provided by a low-offset, chopper-stabilized BCDMOS Hall IC, and the output voltage is precisely calibrated in the factory according to different current ranges. When the applied external current flows through the conduction path (from pin 4 to pin 5), the device output has a positive slope (>VOQ). The typical internal resistance of this conduction path is 120μΩ, enabling low power dissipation. The terminals of the conductive path (pins 4 and 5) are electrically isolated from the signal terminals (pins 1 through 3). This allows the ACS758 current sensor module to be used in current sensing applications without the need for additional costly isolation techniques.

All pins of the ACS758 series are tin-plated, and the package material is lead-free and RoHS compliant.

Features

• Fast output step response time: 4μS
• Single supply voltage: 4.5~5.5V
• 120kHz signal bandwidth
• Zero hysteresis
• Internal conductor resistance: 120μΩ
• Output voltage: 50%Vcc
• Extremely stable quiescent output voltage
• Operating temperature: -40℃~150℃
• Detection range: 50A/100A/150A/200A
• Safety certification: (UL Ready)
• Dielectric strength: 4800Vrms 1min
• Isolation working voltage: 990VDC or VPK, 680Vrms
• Clearance: 5.2mm
• Creepage distance: 7.2mm
• Package: CB-2-3 (PFF)

Applications

• UPS (Uninterruptible Power Supply)
• Motor phase and rail current sensing
• DC power supplies
• Overcurrent protection
• Current sensing for low-to-medium power inverters
• Chargers and converters