TMCS1108A3UQDRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TMCS1108A3UQDRQ1 is an AEC-Q100 automotive-qualified isolated Hall-effect current sensor with ±100 V working voltage range and analog voltage output. It operates across -40°C to 125°C and includes an internal voltage reference for consistent accuracy. Packaged in an 8-pin SOIC for surface-mount automotive power monitoring.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMCS1108A3UQDRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5273(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 galvanic isolation between current-carrying conductors and signal output eliminates the need for external isolation components in high-voltage automotive inverter designs
- AEC-Q100 Grade 1 qualified with -40°C to 125°C operating range ensures reliable operation in underhood and powertrain current sensing applications
- Internal reference voltage simplifies circuit design by eliminating the need for an external precision reference, reducing BOM cost in 8-pin SOIC layout
Applications
TMCS1108A3UQDRQ1 is used in automotive traction inverters, DC-DC converters, and on-board chargers where isolated current measurement from high-voltage bus lines up to 100 V is required. Its Hall-effect sensing principle avoids power loss from shunt resistors, making it suitable for high-efficiency EV drivetrain and regenerative braking circuits. The device also suits industrial motor drives and solar microinverters requiring galvanic isolation between power and signal domains.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | SEATED HGT CALCULATED |
| Body Breadth | 3.895mm |
| Body Height | 1.5mm |
| 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,.25 |
| Package Shape/Style | RECTANGULAR |
| Screening Level | AEC-Q100 |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the working voltage isolation level of TMCS1108A3UQDRQ1, and why is it important for EV applications?
TMCS1108A3UQDRQ1 supports ±100 V continuous working voltage between the current-conducting path and the signal output. In electric vehicle inverters and on-board chargers, this isolation prevents high-voltage transients on the power bus from coupling into the low-voltage MCU signal chain, protecting both the controller and the measurement accuracy.
How does the Hall-effect sensing in TMCS1108A3UQDRQ1 compare with shunt-resistor current sensing at high currents?
Hall-effect sensing in TMCS1108A3UQDRQ1 introduces near-zero insertion loss compared to a 1 mΩ shunt resistor that dissipates 1 W at 31 A. This makes the device more efficient for continuous high-current applications in automotive inverters and motor drives, while also providing inherent galvanic isolation that a shunt resistor cannot offer.
What temperature range does TMCS1108A3UQDRQ1 support, and which automotive zones does this cover?
TMCS1108A3UQDRQ1 operates from -40°C to 125°C, meeting AEC-Q100 Grade 1 requirements. This range covers passenger compartment zones (typically -40°C to 85°C) and underhood zones (up to 125°C), allowing a single part number to be used in both body electronics and powertrain current monitoring without re-qualification.
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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+ | $1.8556 | $185.56 |
| 500+ | $1.7009 | $850.45 |
| 1000+ | $1.6433 | $1643.31 |
| 2500+ | $1.5744 | $3936.07 |
| 5000+ | $1.5273 | $7636.60 |
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