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TMCS1100 Datasheet(PDF) 1 Page - Texas Instruments |
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TMCS1100 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 50 page Bridge Driver Passive / PFC Rectifier DC V+ AC DC V± Controller Current Sense Loads TMCS1100 TMCS1100 TMCS1100 Current Sense Current Sense Control Control Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TMCS1100 SBOS820A – SEPTEMBER 2019 – REVISED JUNE 2020 TMCS1100 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V Working Voltage 1 1 Features 1 • Total error: ±0.4% typical, ±0.9% maximum, –40ºC to 85ºC – Sensitivity error: ±0.4% – Offset error: 7 mA – Offset drift: 0.04 mA/ºC – Linearity error: 0.05% • Lifetime and environmental drift: <±0.5% • 3-kVRMS isolation rating • Robust 600-V lifetime working voltage • Bidirectional and unidirectional current sensing • External reference voltage • Operating supply range: 3 V to 5.5 V • Signal bandwidth: 80 kHz • Multiple sensitivity options: – TMCS1100A1: 50 mV/A – TMCS1100A2: 100 mV/A – TMCS1100A3: 200 mV/A – TMCS1100A4: 400 mV/A • Safety related certifications (planned) – UL 1577 Component Recognition Program – IEC/CB 62368-1 2 Applications • Motor and load control • Inverter and H-bridge current measurements • Power factor correction • Overcurrent protection • DC and ac power monitoring 3 Description The TMCS1100 is a galvanically isolated Hall-effect current sensor capable of dc or ac current measurement with high accuracy, excellent linearity, and temperature stability. A low-drift, temperature- compensated signal chain provides < 1% full-scale error across the device temperature range. The input current flows through an internal 1.8-mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor. This structure eliminates external concentrators and simplifies design. Low conductor resistance minimizes power loss and thermal dissipation. Inherent galvanic insulation provides a 600-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. Integrated electrical shielding enables excellent common-mode rejection and transient immunity. The output voltage is proportional to the input current with four sensitivity options. Fixed sensitivity allows the TMCS1100 to operate from a single 3-V to 5.5-V power supply, eliminates ratiometry errors, and improves supply noise rejection. The current polarity is considered positive when flowing into the positive input pin. The VREF input pin provides a variable zero-current output voltage, enabling bidirectional or unidirectional current sensing. The TMCS1100 draws a maximum supply current of 6 mA, and all sensitivity options are specified over the operating temperature range of –40°C to +125°C. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TMCS1100 SOIC (8) 4.90 mm × 3.90 mm (1) For all available packages, see the package option addendum at the end of the data sheet. Typical Application |
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