Allegro CT432 HSWF30MR current sensor featuring 16 lead soic wide package and rohs compliant green design
Product Overview
The CT432 is a high-bandwidth, ultra-low noise integrated contact current sensor utilizing Allegro's XtremeSense TMR technology for high-accuracy current measurements. It offers multiple current ranges, with the integrated current carrying conductor (CCC) supporting up to 70 A and providing a linear analog output voltage. The device achieves a total output error of less than 1.0% full-scale (FS) across voltage and temperature, featuring a ~300 ns output response time and low current consumption (~6.0 mA). It is immune to common mode fields and optimized for high dV/dt applications, minimizing capacitive coupling to VOUT for use in switching applications. The CT432 is available in an industry-standard, green, RoHS-compliant 16-lead SOIC wide package.
Product Attributes
- Brand: Allegro MicroSystems
- Technology: XtremeSense TMR
- Package: 16-lead SOICW
- Certifications: UL/IEC 62368-1, UL1577, AEC-Q100 Grade 1
- Compliance: Green, RoHS compliant
Technical Specifications
| Feature/Model | Specification | Value |
|---|---|---|
| Product Name | Integrated Contact Current Sensor | CT432 |
| Current Carrying Conductor (CCC) Max Current | ICCC(MAX) | 70 A |
| Total Output Error | ETOT | < 1.0% FS |
| Output Response Time | tRESPONSE | ~300 ns |
| Current Consumption | ICC | ~6.0 mA |
| Bandwidth | fBW | 1 MHz |
| Isolation Voltage | VISO | 5 kVRMS |
| Common Mode Field Rejection Ratio | CMFRR | -54 dB |
| Supply Voltage | VCC | 4.75 to 5.50 V |
| Operating Temperature Range | TA | -40C to 125C |
| Package Dimensions (Typ.) | 10.21 mm 10.31 mm 2.54 mm | |
| Model | Current Range (IPMAX) | Sensitivity (mV/A) |
| CT432-HSWF20MR | 20 A | 100 |
| CT432-HSWF30MR | 30 A | 66.7 |
| CT432-HSWF50MR | 50 A | 40 |
| CT432-HSWF65MR | 65 A | 30.8 |
| CT432-HSWF20DR | 0 to 20 A | 200 |
| CT432-HSWF30DR | 0 to 30 A | 133.3 |
| CT432-HSWF50DR | 0 to 50 A | 80 |
| CT432-HSWF65DR | 0 to 65 A | 61.5 |
| CT432-HSWF70DR | 0 to 70 A | 57.1 |
| AEC-Q100 Grade 1 Models | (See above for ranges and sensitivities) | Grade 1 |
| Applications | Power inverters, UPS, SMPS, telecom power supplies, Motor control, Overcurrent fault protection |
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