Specification	TMCS1100A3QDT

Current - Supply (Max) [Max]	6 mA
For Measuring	AC/DC
Frequency	80 kHz
Linearity	0.05 %
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output	Voltage, Ratiometric
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Response Time	6.5 çs
Sensitivity	200 mV/A
Sensor Type	Hall Effect
Supplier Device Package	8-SOIC
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	3 V

TMCS1100 Series

±600V basic isolation, 20Arms 80kHz Hall-effect current sensor with external reference

Part	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Linearity	Polarization	Frequency	Output	Current - Supply (Max) [Max]	Package / Case	Package / Case [y]	Package / Case [x]	For Measuring	Sensor Type	Number of Channels	Sensitivity	Accuracy	Response Time	Supplier Device Package
Texas Instruments TMCS1100A1QDR	125 °C	-40 °C	Surface Mount	5.5 V	3 V	0.05 %	Bidirectional	80 kHz	Ratiometric Voltage	6 mA	8-SOIC	3.9 mm	0.154 in	AC/DC	Hall Effect	1	50 mV/A	0.4 %
Texas Instruments TMCS1100A3QDR	125 °C	-40 °C	Surface Mount	5.5 V	3 V	0.05 %	Bidirectional	80 kHz	Ratiometric Voltage	6 mA	8-SOIC	3.9 mm	0.154 in	AC/DC	Hall Effect	1	200 mV/A	0.4 %
Texas Instruments TMCS1100A4QDT	125 °C	-40 °C	Surface Mount	5.5 V	4.5 V	0.05 %		80 kHz	Ratiometric Voltage	6 mA	8-SOIC	3.9 mm	0.154 in	AC/DC	Hall Effect	1	400 nF/%RH		6.5 çs	8-SOIC
Texas Instruments TMCS1100A3QDT	125 °C	-40 °C	Surface Mount	5.5 V	3 V	0.05 %		80 kHz	Ratiometric Voltage	6 mA	8-SOIC	3.9 mm	0.154 in	AC/DC	Hall Effect	1	200 mV/A		6.5 çs	8-SOIC
Texas Instruments TMCS1100A1QDT	125 °C	-40 °C	Surface Mount	5.5 V	3 V	0.05 %		80 kHz	Ratiometric Voltage	6 mA	8-SOIC	3.9 mm	0.154 in	AC/DC	Hall Effect	1	50 mV/A		6.5 çs	8-SOIC
Texas Instruments TMCS1100A2QDR	125 °C	-40 °C	Surface Mount	5.5 V	3 V	0.05 %	Bidirectional	80 kHz	Ratiometric Voltage	6 mA	8-SOIC	3.9 mm	0.154 in	AC/DC	Hall Effect	1	100 mV/g	0.4 %
Texas Instruments TMCS1100A2QDT	125 °C	-40 °C	Surface Mount	5.5 V	3 V	0.05 %		80 kHz	Ratiometric Voltage	6 mA	8-SOIC	3.9 mm	0.154 in	AC/DC	Hall Effect	1	100 mV/g		6.5 çs	8-SOIC

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 5.06
		10	$ 4.54
		25	$ 4.30
		100	$ 3.72
	Digi-Reel®	1	$ 5.06
		10	$ 4.54
		25	$ 4.30
		100	$ 3.72
Texas Instruments	SMALL T&R	1	$ 3.82
		100	$ 3.35
		250	$ 2.35
		1000	$ 1.89

Description

General part information

TMCS1100 Series

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-kVRMSbasic 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.