TMCS1108A4BQDRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TMCS1108A4BQDRQ1 is an AEC-Q100 automotive-grade isolated Hall-effect current sensor from Texas Instruments, offering ±100 V isolation and analog voltage output in a compact 8-pin SOIC package rated from -40 °C to 125 °C. It provides precise, non-intrusive current measurement for automotive and industrial applications. Available in stock worldwide with competitive pricing and fast global shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMCS1108A4BQDRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4800(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 enables safe current sensing across high-voltage rails in automotive and industrial systems
- Analog voltage output simplifies integration with ADC inputs without additional signal conditioning circuits
- AEC-Q100 automotive qualification with -40 °C to 125 °C operating range for reliable in-vehicle current monitoring
Applications
The TMCS1108A4BQDRQ1 is designed for automotive current monitoring in EV battery management systems, onboard chargers, and powertrain inverters where galvanic isolation from high-voltage bus rails is essential. It also serves industrial motor drives, solar inverters, and UPS systems that require isolated feedback of AC or DC current up to hundreds of amps via a shunt or bus bar. Its analog output integrates directly with automotive-grade microcontroller ADC inputs, streamlining system design without optocouplers or transformer-based isolation.
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
Compatible alternatives and drop-in replacements for TMCS1108A4BQDRQ1:
Frequently Asked Questions
What isolation voltage does the TMCS1108A4BQDRQ1 provide, and why is it important for EV battery systems?
The TMCS1108A4BQDRQ1 provides ±100 V of galvanic isolation between the current-carrying conductor and the signal output pins. In electric vehicle battery packs operating at 48 V to 800 V bus voltages, this isolation prevents dangerous high-voltage potentials from reaching the low-voltage microcontroller domain, protecting both measurement circuitry and vehicle occupants while enabling accurate real-time current monitoring.
How does the analog voltage output of the TMCS1108A4BQDRQ1 simplify current measurement circuit design?
The analog voltage output on the TMCS1108A4BQDRQ1 scales linearly with sensed current, allowing direct connection to a standard 12-bit or 16-bit ADC input on an automotive MCU without optocouplers, transformers, or digital isolators. This reduces the component count versus digital-output current sensors and eliminates the SPI or I2C interface latency, which is critical for fast-response over-current protection loops that must react within microseconds in motor-drive applications.
For an automotive onboard charger design, what makes TMCS1108A4BQDRQ1 a suitable current-sensing choice?
In an onboard charger operating from a 400 V AC-DC stage, the TMCS1108A4BQDRQ1 provides ±100 V isolation that separates the high-voltage primary from the 5 V signal domain of the control MCU. Its AEC-Q100 automotive qualification ensures operation from -40 °C to 125 °C under vibration and thermal cycling conditions typical of engine-bay installations, while its 8-pin SOIC package fits standard PCB layouts without the larger footprint of transformer-based current sensors.
What is the operating temperature range of the TMCS1108A4BQDRQ1, and which industrial environments does it support?
The TMCS1108A4BQDRQ1 operates from -40 °C to 125 °C, covering both harsh automotive under-hood environments and industrial control cabinet conditions that may see elevated ambient temperatures. This 165 °C span makes it usable in outdoor solar inverters that face low winter temperatures and high summer enclosure temperatures, as well as factory automation motor drives where heat from adjacent power modules can push ambient temperatures above 85 °C.
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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+ | $1.5800 | $1580.00 |
| 2500+ | $1.5300 | $3825.00 |
| 5000+ | $1.4800 | $7400.00 |
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