PMCS1101A1UQDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The PMCS1101A1UQDR is a precision isolated current sensor from Texas Instruments with an internal voltage reference, delivering an analog voltage output proportional to measured current. It features galvanic isolation and operates from a 3.3 V or 5 V supply in a compact SOP-8 package. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- PMCS1101A1UQDR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Precision galvanic isolation between primary current path and signal output
- Internal voltage reference for stable, accurate analog voltage output
- Analog voltage output proportional to sensed current
- Compatible with 3.3 V and 5 V supply rails
- Compact SOP-8 surface-mount package (body ~4.9 mm × 3.9 mm)
- Introduced 2019 for industrial current-sensing applications
Applications
The PMCS1101A1UQDR is used in motor drives, inverters, power supply monitors, and industrial energy metering where galvanic isolation between the high-current path and the control circuit is mandatory for safety. Its analog output simplifies interfacing with microcontroller ADC inputs, making it suitable for both single-phase and three-phase current measurement in factory automation and renewable energy systems.
Specifications
| Date Of Intro | 2019-09-20 |
| YTEOL | 0 |
| Body Breadth | 3.895mm |
| Body Height | 1.75mm |
| Body Length or Diameter | 4.905mm |
| Mounting Feature | SURFACE MOUNT |
| Output | ANALOG |
| Output Type | ANALOG VOLTAGE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape/Style | RECTANGULAR |
| Sensors/Transducers Type | CURRENT SENSOR |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Surface Mount | YES |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PMCS1101A1UQDR:
Frequently Asked Questions
Why is galvanic isolation important in current sensing, and how does PMCS1101A1UQDR provide it?
Galvanic isolation separates the high-voltage primary current path from the low-voltage signal circuitry, protecting the MCU and operator from potentially lethal potentials above 30 V. The PMCS1101A1UQDR uses an isolated architecture to provide this barrier, with its analog output referenced to the secondary low-voltage ground for direct connection to a 3.3 V or 5 V ADC input.
What output format does PMCS1101A1UQDR produce, and how is it connected to a microcontroller?
The device produces an analog voltage output that scales linearly with the sensed current, typically centered around a mid-supply reference level. Connection to an MCU requires only a single ADC input pin, and with a 10-bit or 12-bit ADC the system can resolve current steps as fine as a few milliamps across the full measurement range.
In which industry sectors is PMCS1101A1UQDR most frequently designed in, and what are typical current levels being monitored?
The device targets industrial motor drives, solar inverters, and smart energy meters where currents of 5 A to 50 A are common. Its SOP-8 package and isolated analog output make it a compact solution for three-phase drive stages where one sensor per phase must fit on a densely populated power PCB.
How does the internal voltage reference in PMCS1101A1UQDR improve measurement accuracy versus externally referenced designs?
An integrated voltage reference ensures the output midpoint voltage is stable against supply variations, reducing DC offset error to typically less than ±1% over the -40°C to +85°C operating range. Externally referenced designs depend on supply accuracy and temperature coefficient of discrete resistors, which commonly introduces 2% to 5% additional error in budget designs.
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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.
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