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TMCS1101A2BQDR

TITMCS1101A2BQDR

Texas Instruments
Current Sensor 22.5A 1 Channel Hall Effect Bidirectional 8-SOIC (0.154", 3.90mm Width)
Active3,066 in stock

Overview

The TMCS1101A2BQDR is a galvanically isolated Hall effect current sensor designed for high-precision AC or DC current measurement. It features an 80kHz bandwidth and a ratiometric analog output with 100mV/A sensitivity, making it suitable for systems requiring low drift and high linearity over a wide temperature range. The device includes a zero-drift internal reference and is housed in a compact 8-SOIC package for surface-mount applications.

Why Choose This Part

This sensor offers exceptional accuracy with a linearity of +/-0.05% and an integrated zero-drift reference that minimizes temperature-induced measurement errors. Its 80kHz bandwidth and 6.5us response time provide the speed necessary for high-frequency switching applications while maintaining 330 nV/rtHz noise performance. The galvanic isolation simplifies high-side sensing without the need for complex level-shifting circuitry.

Applications

Motor and Load Control
Precise current sensing for phase current measurement in AC induction and brushless DC motor drives.
Inverter and H-Bridge Systems
Bidirectional current monitoring for solar inverters and full-bridge power stages to ensure efficient energy conversion.
Overcurrent Protection
High-speed response time of 6.5us allows for rapid fault detection and system shutdown during short-circuit events.
Power Factor Correction (PFC)
Monitoring input current in power supplies to improve efficiency and comply with regulatory power standards.

Key Specifications

Output Ratiometric, Voltage
Frequency 80kHz
Linearity +/-0.05%
Sensitivity 100mV/A
Sensor Type Hall Effect
Polarization Bidirectional
For Measuring AC/DC
Mounting Type Surface Mount
Response Time 6.5us
Package / Case 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 3V ~ 5.5V
Current - Sensing 22.5A
Number of Channels 1
Operating Temperature -40degC ~ 125degC
Current - Supply (Max) 6mA
Supplier Device Package 8-SOIC

Getting Started

To evaluate this part, use the TMCS1101EVM evaluation module which provides a test platform for all sensitivity variants. Connect the analog output to a high-impedance ADC input on a microcontroller and ensure the VDD supply is decoupled with a 0.1uF ceramic capacitor placed close to the device pins. The ratiometric output scales with VDD, so use the same voltage reference for your ADC for maximum measurement precision.

TMCS1101A2 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Polarization Stock
TMCS1101A2BQDR (this part) Bidirectional 3,066
TMCS1101A2UQDRQ1 Unidirectional 2,905

Also Consider

ACS724LLCTR-20AB-T Allegro MicroSystems - Provides a similar Hall effect solution with a higher 120kHz bandwidth for faster switching applications.