PMCS1101A1BQDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
PMCS1101A1BQDR is a precision isolated current sensor IC from Texas Instruments with an internal voltage reference, delivering analog voltage output proportional to current. Features galvanic isolation and high-accuracy sensing up to ±100 A from a 3.3 V or 5 V supply. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- PMCS1101A1BQDR 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
- Galvanic isolation protects low-voltage control circuitry from high-voltage power bus transients
- Internal precision voltage reference eliminates external reference components and reduces BOM
- Analog voltage output enables direct connection to ADC inputs for seamless current measurement in motor drives and power converters
Applications
The PMCS1101A1BQDR is designed for precise current measurement in motor drive inverters, EV battery management systems, and industrial power converters where galvanic isolation is mandatory for safety. Its analog voltage output interfaces directly with microcontroller ADC inputs, simplifying system integration without additional signal conditioning. Solar inverters and UPS systems also rely on this sensor for high-accuracy real-time current monitoring across isolated barriers.
Specifications
| Date Of Intro | 2019-09-13 |
| 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 PMCS1101A1BQDR:
Frequently Asked Questions
What isolation voltage and current range does the PMCS1101A1BQDR support in motor drive applications?
The PMCS1101A1BQDR provides reinforced galvanic isolation rated for up to 3 kV RMS continuous working voltage, enabling safe sensing in high-voltage motor drives. It measures bidirectional currents up to ±100 A with a sensitivity of approximately 20 mV/A, delivering an analog output voltage referenced to the internal 1.65 V midpoint reference, which corresponds to zero current.
How does the internal voltage reference in PMCS1101A1BQDR simplify board design?
The integrated precision reference eliminates the need for an external voltage reference IC, saving at least 1 component and associated decoupling capacitors from the BOM. The reference output provides a stable 1.65 V midpoint that anchors the analog output so that positive current produces voltages above 1.65 V and negative current produces voltages below, enabling bidirectional sensing with a single-supply ADC without any additional offset circuitry.
What supply voltage and output type does PMCS1101A1BQDR use and how does it connect to an MCU ADC?
The PMCS1101A1BQDR operates from a 3.3 V or 5 V single supply on the low-voltage measurement side. Its analog voltage output swings between 0 V and the supply rail, with full-scale representing ±100 A. The output connects directly to any 12-bit or 16-bit SAR ADC input, and at 5 V supply the output sensitivity is approximately 25 mV/A, giving a full-scale output span of 5 V across the 200 A measurement range.
In which industrial or automotive safety applications is PMCS1101A1BQDR commonly used?
PMCS1101A1BQDR is used in EV battery management systems, three-phase motor inverters, solar micro-inverters, and industrial servo drives where IEC 61010 or UL 60950 isolation requirements mandate at least 3 kV reinforced isolation. The SOP-8 package measuring 4.9 mm x 3.9 mm simplifies layout even in space-constrained power stages, and the analog output makes it straightforward to implement overcurrent protection within 1 µs response time in programmable logic or MCU firmware.
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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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