TMCS1108A2BQDRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TMCS1108A2BQDRQ1 is an AEC-Q100 Grade 1 automotive-qualified isolated Hall-effect current sensor supporting up to ±100 V bus voltage with analog voltage output in an 8-SOIC package. It provides 400 mV/A sensitivity, operates from -40°C to 125°C, and delivers galvanic isolation for safe high-voltage current measurement. Available in stock worldwide with competitive pricing and fast worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMCS1108A2BQDRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4500(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
- AEC-Q100 Grade 1 automotive qualification for reliable operation in harsh -40°C to 125°C environments
- Up to ±100 V isolated bus voltage support with galvanic isolation, protecting the MCU from high-voltage transients
- 400 mV/A sensitivity with analog voltage output for direct interfacing to 12-bit and 16-bit ADC inputs
Applications
The TMCS1108A2BQDRQ1 is designed for automotive battery management systems, motor drive controllers, and EV onboard chargers that require isolated current sensing on high-voltage rails up to ±100 V. Its AEC-Q100 Grade 1 rating makes it suitable for underhood environments where temperatures reach 125°C and long-term reliability is critical. Industrial power supplies and solar inverters also benefit from its wide voltage isolation and accurate analog output for closed-loop current control.
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 bus voltage and isolation level does the TMCS1108A2BQDRQ1 support?
The TMCS1108A2BQDRQ1 supports a bus voltage of ±100 V with galvanic isolation between the current-carrying conductors and the signal output pins. This 100 V isolation capability protects downstream 3.3 V or 5 V MCU circuits from high-voltage transients on automotive battery lines or motor drive bus rails.
How does the 400 mV/A sensitivity help when interfacing to a microcontroller ADC?
With 400 mV/A sensitivity and a mid-supply reference output of approximately 1.65 V on a 3.3 V rail, the TMCS1108A2BQDRQ1 drives an analog voltage that maps directly to a 12-bit or 16-bit ADC input. For a 10 A full-scale current, the output spans roughly 4 V, giving at least 8 mA per LSB resolution on a 12-bit converter, which is more than adequate for motor or battery current monitoring.
Which automotive qualification grade does the TMCS1108A2BQDRQ1 carry, and what does that mean for temperature range?
The device is qualified to AEC-Q100 Grade 1, meaning it is tested and guaranteed to operate continuously from -40°C to 125°C. Grade 1 is the standard requirement for underhood automotive applications such as engine control units, transmission controllers, and EV power modules where ambient temperatures routinely exceed 100°C.
For a 48 V EV auxiliary battery monitor, is TMCS1108A2BQDRQ1 a better fit than a shunt-resistor solution?
Yes. The TMCS1108A2BQDRQ1 eliminates the shunt resistor power loss (I²R) across a 10 A sense path and provides ±100 V isolation so the MCU ground can float independently from the 48 V battery negative rail. The 8-SOIC package occupies under 40 mm² of board area, and there is no need for a differential amplifier stage, reducing BOM count by at least 3 components compared to a discrete shunt approach.
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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+ | $1.5700 | $1570.00 |
| 2500+ | $1.5000 | $3750.00 |
| 5000+ | $1.4500 | $7250.00 |
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