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TMCS1108A4BQDRQ1

TITMCS1108A4BQDRQ1

Texas Instruments
Current Sensor 5.6A 1 Channel Hall Effect Bidirectional 8-SOIC (0.154", 3.90mm Width)
Active10,608 in stock

Overview

The TMCS1108A4BQDRQ1 is an AEC-Q100 qualified, galvanically isolated Hall-effect current sensor designed for high-precision DC or AC current measurement. It features a ratiometric voltage output with a high sensitivity of 400mV/A and a 100V isolation rating, making it suitable for low-to-medium voltage systems requiring functional safety. The device integrates a zero-drift internal reference to maintain accuracy across its -40C to 125C operating temperature range.

Why Choose This Part

The sensor offers excellent linearity of +/-0.5% and a zero-drift architecture that minimizes offset errors over temperature. Its 80kHz bandwidth and 6.5us response time provide sufficient speed for most motor control and power monitoring loops. Being AEC-Q100 qualified and functional safety-capable, it simplifies the certification process for automotive and industrial safety systems.

Applications

Automotive Motor Control
Precise current feedback for cooling fans, power steering, and small motor actuators in vehicle systems.
Inverter Phase Current Sensing
Monitoring phase currents in H-bridge and inverter topologies for efficient power conversion.
Power Factor Correction (PFC)
High-speed current sensing in switching power supplies to improve efficiency and power quality.
Overcurrent Protection
Fast 6.5us response time allows for rapid fault detection to protect sensitive power electronics.

Key Specifications

Output Ratiometric, Voltage
Frequency 80kHz
Linearity +/-0.5%
Sensitivity 400mV/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 4.5V ~ 5.5V
Current - Sensing 5.6A
Number of Channels 1
Operating Temperature -40degC ~ 125degC
Current - Supply (Max) 6mA

Getting Started

To evaluate this sensor, use the TMCS1108EVM evaluation module which provides a hardware platform for testing accuracy and transient response. Ensure the PCB layout follows Texas Instruments' recommendations for thermal management of the high-current trace to avoid localized heating. The ratiometric output can be interfaced directly to a 3V or 5V microcontroller ADC, as the device operates between 3V and 5.5V VDD.

Part of TMCS Current Sensors family » TMCS1108A4

TMCS1108A4 Family

Also available as: TMCS1108A4BQDR

Also Consider

ACS724LLCTR-05AB-T Allegro MicroSystems - High-accuracy Hall-effect sensor with a smaller footprint and similar bidirectional sensing capabilities.