TMCS1100A2QDRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TMCS1100A2QDRQ1 is an automotive-grade precision isolated current sensor IC from Texas Instruments with analog voltage output. It provides galvanic isolation up to 300 V working voltage with ±2% full-scale accuracy across -40°C to 125°C. Available in surface-mount package, in stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMCS1100A2QDRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2500(MOQ 62)
- 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 ensures reliable operation from -40°C to 125°C in harsh vehicle environments
- Galvanic isolation up to 300 V working voltage protects low-voltage microcontrollers from high-voltage bus faults
- Analog voltage output with ±2% full-scale accuracy eliminates shunt resistor power dissipation in high-current sensing paths
Applications
The TMCS1100A2QDRQ1 is designed for measuring DC and AC currents in automotive powertrain, battery management, and motor drive systems where galvanic isolation between high-voltage and low-voltage domains is required. Its AEC-Q100 Grade 1 qualification and -40°C to 125°C operating range make it suitable for under-hood electronic control units and EV inverter current sensing. The analog voltage output interfaces directly with microcontroller ADC inputs, enabling real-time overcurrent detection and power management algorithms.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Body Breadth | 3.9mm |
| Body Height | 1.5mm |
| Body Length or Diameter | 4.9mm |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Output | BRIDGE |
| 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 | 5.5V |
| 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 TMCS1100A2QDRQ1:
Frequently Asked Questions
What isolation voltage does the TMCS1100A2QDRQ1 provide, and how does it protect an ECU from high-voltage bus transients?
The TMCS1100A2QDRQ1 provides galvanic isolation rated to 300 V working voltage, creating a barrier between the high-voltage current-carrying conductor and the low-voltage microcontroller or ADC interface. This isolation prevents destructive fault currents from reaching sensitive 3.3 V or 5 V logic during automotive load dump transients or insulation failure events. The analog output voltage remains proportional to measured current while the isolation barrier absorbs transient overvoltages up to the rated isolation level.
How accurate is the TMCS1100A2QDRQ1 over the full automotive temperature range for battery current monitoring?
The TMCS1100A2QDRQ1 achieves ±2% full-scale accuracy across the -40°C to 125°C automotive temperature range, which is suitable for state-of-charge estimation in lithium-ion battery management systems. This accuracy level allows detection of current imbalances as small as a few amps in 100 A or 200 A rated battery pack designs. AEC-Q100 Grade 1 qualification confirms the device maintains accuracy and reliability under the thermal cycling and vibration conditions specified for automotive under-hood environments.
For an EV motor controller design, how does TMCS1100A2QDRQ1 compare to a shunt-based current sensing approach?
Unlike shunt resistor current sensing, which dissipates I²R power proportional to current squared, the TMCS1100A2QDRQ1 isolated sensor introduces near-zero power loss in the main current path, improving system efficiency at high motor drive currents of 50 A or more. The integrated galvanic isolation also eliminates the need for a separate isolation amplifier stage required with shunt-based designs, reducing BOM cost and PCB area. The surface-mount package with 4.9 mm body length fits in compact motor control modules.
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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 |
|---|---|---|
| 62+ | $3.2771 | $203.18 |
| 79+ | $3.1679 | $250.26 |
| 100+ | $2.6731 | $267.31 |
| 500+ | $2.4602 | $1230.08 |
| 1000+ | $2.3600 | $2360.00 |
| 2500+ | $2.2500 | $5625.00 |
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