Broadcom ACHS-719x Series: Fully Integrated Hall-Effect Linear Current Sensor ICs
Product Overview
The Broadcom ACHS-719x series are fully integrated, Hall-effect based linear current sensors designed for AC or DC current sensing in industrial, commercial, and communications systems. These isolated sensors feature a low-offset, linear Hall circuit with an integrated copper conduction path, providing a precise voltage output proportional to the applied current. Optimized for accuracy across a wide operating temperature range, the ACHS-719x series offers a low-resistance current path (0.7 m typical) for minimal power loss. Housed in a compact, surface-mountable SO-8 package, these sensors meet worldwide regulatory safety standards, including 3 kVRMS isolation. Key applications include low-power inverter current sensing, eBikes, motor phase and rail current sensing, solar inverters, chargers, converters, and switching power supplies.
Product Attributes
- Brand: Broadcom
- Technology: Hall-effect based
- Isolation: 3 kVRMS
- Package: SO-8 (Surface Mount)
- Regulatory Approvals: UL/cUL, IEC/EN 62368-1
Technical Specifications
| Model | Current Range | Sensitivity (Typ.) | Internal Resistance (Typ.) | Bandwidth (Typ.) | Supply Voltage (VDD) | Operating Temperature | Isolation Voltage |
|---|---|---|---|---|---|---|---|
| ACHS-7191 | 10A | 185 mV/A | 0.7 m | 80 kHz | 5.0V | 40C to +110C | 3 kVRMS |
| ACHS-7192 | 20A | 100 mV/A | 0.7 m | 80 kHz | 5.0V | 40C to +110C | 3 kVRMS |
| ACHS-7193 | 30A | 66 mV/A | 0.7 m | 80 kHz | 5.0V | 40C to +110C | 3 kVRMS |
| ACHS-7194 | 40A | 50 mV/A | 0.7 m | 80 kHz | 5.0V | 40C to +110C | 3 kVRMS |
| ACHS-7195 | 50A | 40 mV/A | 0.7 m | 80 kHz | 5.0V | 40C to +110C | 3 kVRMS |
| General Specifications: | |||||||
| Internal Conductor Resistance | 0.7 m typical | ||||||
| Ratiometric Output | Yes | ||||||
| Single Supply Operation | 5.0V | ||||||
| Low-Noise Analog Signal Path | Yes | ||||||
| Factory-Trimmed for Accuracy | Yes | ||||||
| Extremely Stable Output Offset Voltage | Yes | ||||||
| Near-Zero Magnetic Hysteresis | Yes | ||||||
| Maximum Output Error (across TA) | 6.0% | ||||||
| Common Mode Transient Immunity (CMTI) | >25 kV/s | ||||||
| Input-Output Momentary Withstand Voltage | 3000 VRMS (1 minute) | ||||||
| Input-Output Resistance | 1014 (typical) | ||||||
| Input-Output Capacitance | 1.3 pF (typical at 1 MHz) | ||||||
2506111756_Broadcom-ACHS-7191-000E_C6854440.pdf
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