TMCS1108A3UQDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TMCS1108A3UQDR is a galvanically isolated Hall-effect current sensor from Texas Instruments supporting up to 100 V isolation and analog voltage output in an 8-pin SOIC package. It measures AC and DC currents with a sensitivity suited for motor control and power monitoring applications. Operates from -40°C to 85°C; available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMCS1108A3UQDR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2400(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Up to 100 V working voltage isolation between the current-carrying conductors and signal-side circuitry eliminates the need for optocouplers or transformers in high-side current sensing
- Analog voltage output with internal reference enables direct connection to microcontroller ADC inputs without external signal conditioning for current measurements up to tens of amperes
- Hall-effect sensing technology provides galvanic isolation and eliminates shunt resistor power dissipation, improving system efficiency in high-current industrial and automotive designs
Applications
TMCS1108A3UQDR is designed for isolated current monitoring in motor drives, DC-DC converters, solar inverters, and battery management systems where the current-carrying conductor operates at voltages above the signal ground. Its 100 V isolation capability allows safe measurement of currents on high-side rails in 48 V battery packs and industrial 24 V bus systems without opto-isolated amplifiers. The analog output interface integrates directly with microcontroller ADC pins in energy meters, overcurrent protection circuits, and power factor correction designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Body Breadth | 3.895mm |
| Body Height | 1.75mm |
| Body Length or Diameter | 4.905mm |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Output Type | ANALOG VOLTAGE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.24 |
| Package Shape/Style | RECTANGULAR |
| Sensors/Transducers Type | CURRENT SENSOR |
| Supply Voltage-Max | 5V |
| Supply Voltage-Min | 3V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TMCS1108A3UQDR:
Frequently Asked Questions
What isolation voltage does TMCS1108A3UQDR provide between the current path and signal side?
TMCS1108A3UQDR provides up to 100 V working voltage galvanic isolation between the current-conducting pins and the analog signal output pins. This allows the sensor to measure currents on rails referenced to voltages as high as 100 V above signal ground without requiring additional isolation amplifiers or optocouplers in the signal path.
For a 48 V battery management system, how does TMCS1108A3UQDR simplify the current sensing circuit?
In a 48 V BMS application, TMCS1108A3UQDR replaces a shunt resistor plus differential amplifier plus optocoupler chain with a single 8-pin SOIC IC, reducing the component count by at least 5 parts. The analog output voltage is ratiometric and directly readable by the MCU ADC referenced to signal ground, even though the measured current flows through conductors up to 100 V above that reference.
What output type does TMCS1108A3UQDR provide and how is it connected to a microcontroller?
TMCS1108A3UQDR provides an analog voltage output that is proportional to the measured current, with an internal mid-supply reference voltage corresponding to zero current. The output connects directly to a microcontroller ADC input referenced to the signal-side VCC, with no external signal conditioning required for currents within the device's rated measurement range.
What is the operating temperature range of TMCS1108A3UQDR and which application environments does it cover?
TMCS1108A3UQDR is rated for operation from -40°C to +85°C, covering the full industrial temperature range. This makes it suitable for outdoor solar inverter installations subject to winter temperatures, automotive under-hood environments up to 85°C, and factory automation equipment installed in unheated warehouses or machine enclosures.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.5980 | $159.80 |
| 500+ | $1.4623 | $731.15 |
| 1000+ | $1.3500 | $1350.00 |
| 2500+ | $1.2800 | $3200.00 |
| 5000+ | $1.2400 | $6200.00 |
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