TMCS1107A1BQDT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TMCS1107A1BQDT is a galvanically isolated Hall-effect current sensor from Texas Instruments with 420 V reinforced isolation and internal reference. It provides an analog voltage output proportional to current, operates from -40°C to +85°C, and fits an 8-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TMCS1107A1BQDT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2907(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 420 V reinforced galvanic isolation using Hall-effect technology eliminates the need for shunt resistors and protects low-voltage circuitry from high-voltage rails
- Internal reference output at half the supply voltage enables ratiometric analog output for direct ADC interfacing without external reference circuitry
- 8-pin SOIC surface-mount package with 4 mm creepage distance simplifies PCB layout for isolated current sensing in industrial and motor drive designs
Applications
The TMCS1107A1BQDT is ideal for isolated current sensing in motor drives, solar inverters, and industrial power converters where 420 V isolation between the power bus and the control side is required. Its analog voltage output interfaces directly with microcontroller ADC inputs, enabling real-time current feedback for closed-loop control without optocouplers or transformers. The device also suits EV battery management systems and smart grid equipment requiring accurate, non-contact AC or DC current measurement across a -40°C to +85°C operating range.
Specifications
| YTEOL | 0 |
| 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 | 5.5V |
| Supply Voltage-Min | 3V |
| Surface Mount | YES |
| Terminal Finish | MATTE TIN |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What isolation voltage does the TMCS1107A1BQDT provide and how does that affect system design?
The TMCS1107A1BQDT provides 420 V reinforced galvanic isolation between the current-carrying conductors and the signal output side. This level of isolation allows it to measure currents on high-voltage rails such as 400 V DC bus in inverters while directly driving a 3.3 V or 5 V ADC input, eliminating optocouplers and current transformers and reducing BOM cost.
What type of output does the TMCS1107A1BQDT produce and how should it be connected to a microcontroller ADC?
The TMCS1107A1BQDT produces an analog voltage output that is ratiometric to the measured current, centered around an internal reference set at half the supply voltage (e.g., 1.65 V on a 3.3 V supply). This midpoint reference allows bidirectional current measurement from approximately -50 A to +50 A depending on the variant, and can connect directly to a single-ended ADC input without additional signal conditioning.
How does TMCS1107A1BQDT compare to a shunt resistor approach for current sensing in a 400 V motor drive?
Unlike a shunt resistor, the TMCS1107A1BQDT introduces no power loss in the current path because it uses Hall-effect sensing with no series resistance. In a 10 A motor drive application, a 10 mΩ shunt dissipates 1 W continuously; the TMCS1107 dissipates approximately 0 W in the current path. The 420 V isolation also means no high-voltage rated differential amplifier is needed, reducing component count by 3 to 5 parts.
What is the operating temperature range of the TMCS1107A1BQDT and does it suit outdoor industrial equipment?
The TMCS1107A1BQDT is rated for -40°C to +85°C operation, covering the full industrial temperature range. This makes it suitable for outdoor motor drives, solar string inverters, and EV charging stations exposed to ambient temperature extremes. The 8-pin SOIC package with 4.905 mm body length fits easily on industrial-grade PCBs without special thermal management requirements.
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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 |
|---|---|---|
| 10+ | $2.7650 | $27.65 |
| 25+ | $2.5392 | $63.48 |
| 100+ | $2.2907 | $229.07 |
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