PMCS1101A3BQDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The PMCS1101A3BQDR is a precision isolated current sensor IC from Texas Instruments with an internal voltage reference and analog output in an 8-pin SOP package. It provides galvanic isolation for accurate current measurement. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- PMCS1101A3BQDR 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 current-carrying conductor and signal output enables safe measurement in high-voltage systems up to hundreds of volts
- Integrated internal reference voltage eliminates need for external precision voltage source, reducing BOM count and simplifying PCB layout
- Analog voltage output on 8-pin SOP8 package allows direct ADC interfacing with 3.3 V or 5 V microcontrollers
Applications
The PMCS1101A3BQDR is designed for isolated current sensing in power supplies, motor drives, and battery management systems where galvanic isolation is required for safety and noise immunity. Its analog voltage output allows direct connection to a microcontroller ADC for real-time current monitoring in industrial and consumer applications. The compact 8-pin SOP package suits space-constrained power conversion and inverter designs.
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 PMCS1101A3BQDR:
Frequently Asked Questions
Why is galvanic isolation important in the PMCS1101A3BQDR and which applications benefit most?
Galvanic isolation in the PMCS1101A3BQDR separates the high-voltage current path from the signal output, protecting microcontrollers operating at 3.3 V or 5 V from high-side voltages. This is critical in motor drives, grid-tied inverters, and battery management systems where bus voltages can exceed 100 V.
What output type does PMCS1101A3BQDR provide and how does it connect to a microcontroller?
The PMCS1101A3BQDR provides an analog voltage output proportional to the measured current, allowing direct connection to a microcontroller ADC input without additional signal conditioning. The 8-pin SOP package with 0.25-inch pin pitch simplifies PCB layout on standard 2-layer boards.
How does the internal reference of PMCS1101A3BQDR simplify circuit design compared to external-reference current sensors?
The integrated internal voltage reference eliminates the need for an external precision 2.5 V or 3.3 V reference IC, reducing BOM by at least 1 component and saving approximately 3 mm² of PCB area per channel. This lowers system cost and simplifies the power supply design for multichannel current monitoring boards.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
Why Buy from FindMyChip
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”