PLM393BIDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The PLM393BIDR is a dual general-purpose voltage comparator featuring open-collector outputs and a maximum input offset voltage of 4 mV. It operates over a -40°C to +85°C industrial temperature range and integrates two independent comparator channels in an 8-pin SOIC package. With 50 nA maximum bias current, it suits battery monitoring, window comparators, threshold detection, and level-shifting circuits.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- PLM393BIDR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PLM393BIDR?
- 2 independent comparator channels in a single 8-pin SOIC
- Open-collector outputs for wired-OR and level-shifting flexibility
- 4 mV maximum input offset voltage for accurate threshold detection
- 50 nA maximum input bias current ideal for high-impedance sources
- -40°C to +85°C industrial temperature range
- Wide supply voltage range supporting single or dual supply operation
What is PLM393BIDR used for?
The PLM393BIDR is used in threshold-detection circuits for battery undervoltage monitoring, overcurrent protection, and relay-driver interfaces that need open-collector logic outputs. Its dual-channel architecture allows a single package to implement a voltage window comparator that flags out-of-range analog signals in industrial sensor conditioning boards. LED bar-graph drivers, zero-crossing detectors in motor-control applications, and logic-level translation circuits also benefit from the open-collector output structure and 4 mV offset accuracy.
What are the specifications of PLM393BIDR?
| Date Of Intro | 2019-09-26 |
| YTEOL | 0 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 0.05 µA |
| Input Offset Voltage-Max | 4000 µV |
| JESD-30 Code | R-PDSO-G8 |
| Number of Functions | 2 |
| Output Type | OPEN-COLLECTOR |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Packing Method | TR |
| Response Time-Nom | 1000ns |
| Supply Current-Max | 2.5mA |
| Supply Voltage Limit-Max | 38V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PLM393BIDR datasheet?
PLM393BIDR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PLM393BIDR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output structure does PLM393BIDR use, and how does it affect circuit design?
PLM393BIDR uses open-collector outputs, which require an external pull-up resistor to the supply or a separate logic rail. This topology allows multiple comparator outputs to be wired together in a wired-OR configuration, and permits the output to switch into a different voltage domain, such as pulling up to 5 V while the comparator itself runs from 3.3 V.
How accurate is PLM393BIDR for battery undervoltage detection in a 3.3 V powered system?
The device has a maximum input offset voltage of 4 mV, meaning the trip point can deviate by at most 4 mV from the intended threshold. On a 3.3 V rail this represents less than 0.12% error, which is sufficient for battery management circuits that typically require a 50 mV to 100 mV hysteresis window.
Can PLM393BIDR operate across the full -40°C to +85°C industrial temperature range without recalibration?
Yes. PLM393BIDR is specified for the full -40°C to +85°C industrial range, with all key parameters including the 4 mV maximum offset and 50 nA maximum bias current guaranteed across this temperature span. No recalibration or trim adjustment is needed after PCB assembly for industrial deployments.
How does PLM393BIDR compare to the LM393 for a new industrial design started in 2024?
PLM393BIDR was introduced in 2019 as a production-stable replacement in the LM393 comparator family. It meets equivalent electrical specifications including the open-collector output, 4 mV offset, and -40°C to +85°C range, but is manufactured on a modern process with improved long-term supply availability and an 8-pin SOIC package that fits existing LM393 SOIC footprints.
How many independent comparator functions are in PLM393BIDR, and can they share a single supply rail?
PLM393BIDR integrates 2 independent comparator functions with separate input and output pins but a shared VCC and GND. Both channels operate simultaneously from the same supply, which can range from a single 2 V to 36 V supply or a dual supply up to ±18 V, making the package efficient for 2-channel window comparator or 2-level threshold detector 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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