TMCS1108A2UQDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TMCS1108A2UQDR is a Hall-effect current sensor with ±100V basic isolation, measuring up to 20Arms AC current at a bandwidth of 80 kHz with an analog voltage output and integrated reference. Housed in an 8-pin SOIC package, it operates from -40°C to 125°C. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMCS1108A2UQDR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2875(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
- ±100 V basic isolation between the current-carrying conductor and signal path protects downstream electronics in high-voltage motor-drive and power-conversion circuits
- 80 kHz bandwidth with analog voltage output enables accurate current waveform capture for real-time control loops and fault detection up to 20Arms
- Integrated voltage reference and compact 8-SOIC package simplify PCB design by eliminating external reference components and reducing footprint
Applications
The TMCS1108A2UQDR is targeted at motor-drive inverters, solar-panel string inverters, and UPS systems that need isolated AC current sensing up to 20Arms without a current transformer or shunt resistor in the high-voltage path. Its 80 kHz bandwidth makes it suitable for switching-converter current-loop feedback where rapid overcurrent detection is essential. The device also fits EV on-board chargers and industrial servo drives operating over the -40°C to +125°C automotive temperature range.
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 TMCS1108A2UQDR:
Frequently Asked Questions
What current measurement range and bandwidth does the TMCS1108A2UQDR support for AC motor-drive applications?
The TMCS1108A2UQDR measures up to 20Arms of AC current with a signal bandwidth of 80 kHz, which is wide enough to capture fundamental and harmonic components in typical 3-phase motor-drive inverters switching at frequencies from 4 kHz to 20 kHz. The analog voltage output can be directly sampled by a 12-bit or 16-bit ADC input on a DSP or microcontroller without an additional amplifier stage.
How much isolation voltage does the TMCS1108A2UQDR provide, and what standard governs it?
The device provides ±100 V basic isolation between the high-side current path and the low-voltage signal pins, separating the power circuit from the control electronics. This isolation class is suitable for applications where the bus voltage does not exceed 100 V, such as 48 V battery systems, 24 V industrial buses, and low-voltage DC motor drives, without requiring a reinforced-isolation component.
Does the TMCS1108A2UQDR include an integrated reference, and how does it simplify the signal-chain design?
Yes, the device integrates an on-chip voltage reference that sets the output mid-scale bias point, eliminating the need for a separate precision reference IC or a resistive divider to establish the zero-current output level. This reduces BOM by at least 1 component and removes a potential noise source in the current-sense signal chain, improving accuracy at low current levels below 1Arms.
What operating temperature range does the TMCS1108A2UQDR cover, and is it suitable for automotive designs?
The device operates over a -40°C to +125°C junction temperature range, which aligns with AEC-Q100 Grade 1 automotive requirements. This makes it appropriate for EV battery management, on-board chargers, and e-motor controllers where the current sensor must survive under-hood thermal environments as well as cold-start conditions at -40°C without recalibration or performance degradation.
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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+ | $1.4118 | $1411.80 |
| 2500+ | $1.3514 | $3378.50 |
| 5000+ | $1.3101 | $6550.45 |
| 7500+ | $1.2875 | $9656.48 |
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