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Texas Instruments LM339BIDR
- Part No.:
- LM339BIDR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM339BIDR.pdf
- Description:
- 36-V, -40C TO 85C QUAD STANDARD
- Quantity:
- Payment:
- Shipping:
Inventory:3,865
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Product details
Overview
LM339BIDR from Texas Instruments is a quad differential comparator IC designed for precision voltage comparison in single-supply systems. It features ±38V differential input range, 0.37mV typical input offset voltage, 200µA per comparator supply current, 1µs response time, and operates from 2V to 36V supply - widely used in server PSU overvoltage protection circuits.
For engineers reviewing the LM339BIDR datasheet, LM339BIDR pinout, LM339BIDR application, or LM339BIDR equivalent, key selection criteria include input offset stability over temperature (±5.5mV max), ESD robustness (2kV HBM), rail-to-rail common-mode input range including ground, and open-collector TTL/MOS/CMOS-compatible outputs.
Technical Context
The LM339BIDR implements four independent high-gain comparators with internal ESD clamps, enabling operation across −40°C to +85°C ambient. Its input stage supports common-mode voltages from V− to (V+) − 2.0V and differential inputs up to ±38V without damage.
Each comparator delivers low propagation delay (1µs typ), low output saturation voltage (≤400mV at 4mA sink), and quiescent current independent of supply voltage - critical for power-sensitive industrial monitoring and motor control feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2V to 36V - enables direct use with 3.3V, 5V, 12V, and 24V system rails without level-shifting. |
| Input Offset Voltage (max) | ±5.5mV over −40°C to +85°C - ensures accurate threshold detection in temperature-varying environments like factory automation. |
| Response Time | 1µs typical - supports fast fault detection in UPS and cordless tool battery management. |
| Input Bias Current (typ) | 3.5nA - minimizes loading on high-impedance sensor sources such as thermistor networks or photodiode amplifiers. |
| ESD Rating (HBM) | 2000V - provides robust handling during board assembly and field service in industrial settings. |
| Differential Input Range | ±38V - allows direct comparison of signals referenced to different potentials, e.g., phase-to-phase voltage sensing in motor drives. |
| Output Type | Open-collector - permits wired-OR logic, flexible pull-up selection (TTL/CMOS/MOS), and interface with mixed-voltage systems. |
Pinout & Package
LM339BIDR is housed in a 14-pin SOIC (D) package measuring 8.70mm × 3.90mm, with standard JEDEC MS-012AC footprint and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Open-collector output of Comparator 1 - requires external pull-up; sinks up to 21mA. |
| 2 | OUT2 | Open-collector output of Comparator 2 - electrically identical to OUT1; supports independent logic decisions. |
| 3 | VCC | Positive supply pin - accepts 2V–36V; powers all four comparators and internal bias circuitry. |
| 4 | IN2− | Inverting input of Comparator 1 - forms differential pair with IN2+; supports common-mode down to ground. |
| 5 | IN2+ | Non-inverting input of Comparator 1 - accepts voltages up to VCC; enables rail-to-rail input operation. |
| 6 | IN1− | Inverting input of Comparator 2 - shares same electrical characteristics as IN2−; no crosstalk between channels. |
| 7 | IN1+ | Non-inverting input of Comparator 2 - fully independent; usable for dual-threshold or window-comparator configurations. |
| 8 | IN3− | Inverting input of Comparator 3 - extends multi-channel monitoring capability for 3-phase systems or redundant sensing. |
| 9 | IN3+ | Non-inverting input of Comparator 3 - supports simultaneous voltage, current, and temperature monitoring in server PSUs. |
| 10 | IN4− | Inverting input of Comparator 4 - completes quad functionality; suitable for fail-safe shutdown logic. |
| 11 | IN4+ | Non-inverting input of Comparator 4 - enables full-system status aggregation before triggering system-level interrupts. |
| 12 | GND | Negative supply reference - must be connected to system ground; serves as return path for all output sink currents. |
| 13 | OUT4 | Open-collector output of Comparator 4 - directly drives optocouplers or microcontroller interrupt pins. |
| 14 | OUT3 | Open-collector output of Comparator 3 - supports parallel OR-ing with other outputs for consolidated fault signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in replacement for LM339/LM239/LM2901 | Pin- and function-compatible with legacy A/V-grade parts - eliminates PCB redesign in upgrade paths. |
| Extended common-mode input range | Includes ground and extends to (VCC − 2V) - enables direct sensing of 0V-referenced signals without level shifters. |
| Low input offset drift | ±0.37mV typical at 25°C, ±5.5mV max over full temp range - improves accuracy in precision threshold applications like battery cell balancing. |
| Rugged input structure | Dedicated ESD clamps and ±38V differential rating - withstands transient overvoltages in motor drive and industrial I/O modules. |
| Temperature-stable quiescent current | 1.0–1.6mA total (all four comparators) from −40°C to +85°C - ensures predictable power budget in embedded controllers. |
Applications
| Server Power Supply Monitoring | Vacuum Robot Safety Interlock |
|---|---|
Use Scenario: Real-time monitoring of +12V, +5V, and +3.3V rails in 80 PLUS Titanium PSUs with automatic shutdown on overvoltage. IC Role / Device Role / Timing Role: Quad comparator performs independent voltage window checks; outputs feed OR-gate to trigger PMBus ALERT# signal within 1µs. Use Value: Prevents catastrophic downstream damage by detecting 5% overvoltage within 1µs using precise ±5.5mV offset tolerance. | Use Scenario: Verifying vacuum chamber pressure, motor encoder position, and emergency stop button status before motion initiation. IC Role / Device Role / Timing Role: LM339BIDR compares analog sensor outputs against fixed thresholds; four outputs feed FPGA safety logic block. Use Value: Enables SIL-2 compliant interlock with deterministic <1µs response, eliminating need for external comparators or ADC polling. |
| Cordless Power Tool Battery Management | Building Automation HVAC Control |
Use Scenario: Cell voltage balancing and pack overvoltage cutoff in 20V/60V Li-ion battery packs with integrated fuel gauging. IC Role / Device Role / Timing Role: Compares individual cell voltages to reference; triggers MOSFET discharge or charge termination via open-collector outputs. Use Value: Achieves ±5mV threshold accuracy across −20°C to +60°C operating range, extending battery cycle life by 12%. | Use Scenario: Monitoring CO₂ sensors, temperature transducers, and damper actuator feedback in smart HVAC controllers. IC Role / Device Role / Timing Role: Four comparators condition analog sensor outputs into digital status flags for MCU GPIO inputs. Use Value: Reduces BOM count by replacing four discrete comparator ICs; saves 28mm² PCB area versus dual-SOIC alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad differential comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2901BDR | Identical electrical specs but rated for −40°C to +125°C operation; same SOIC-14 package. | Required for under-hood automotive or high-temp industrial enclosures exceeding 85°C ambient. | Select LM2901BDR when extended temperature range is mandatory; otherwise LM339BIDR offers optimal cost/performance for commercial-grade systems. |
| LM339PWR | TSSOP-14 package (5.00mm × 4.40mm); identical LM339B specs but smaller footprint and higher thermal resistance (136.6°C/W). | Suitable for space-constrained designs where PCB area is premium, e.g., compact IoT gateways or portable test equipment. | Choose LM339PWR only if board layout requires TSSOP; verify thermal margin given higher RθJA versus SOIC. |
Compared with LM2901BDR and LM339PWR, the LM339BIDR delivers the best balance of industrial temperature compliance, thermal performance (111.2°C/W), and supply-chain availability for server PSU and factory automation applications.
Availability
LM339BIDR is available at Aetrix Electronics and suitable for server PSU monitoring, vacuum robot safety interlocks, and cordless power tool battery management requiring stable component supply across multi-year production cycles.
Supply support for LM339BIDR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The LM339B series belongs to TI's precision analog comparator portfolio, engineered specifically for high-reliability industrial power monitoring, motor control feedback, and safety-critical voltage supervision applications.
FAQ
What is the maximum supply voltage rating for LM339BIDR?
The LM339BIDR has an absolute maximum supply voltage rating of 38V, with recommended operating range from 2V to 36V. This allows direct integration into 24V industrial control systems and 36V battery-powered tools without external regulation. Operation beyond 36V risks exceeding safe operating area limits even if within absolute max ratings.
Does LM339BIDR support rail-to-rail input operation?
Yes, the LM339BIDR supports common-mode input voltages from ground (V−) up to (VCC − 2.0V) across its full temperature range. Both inputs can independently reach VCC without damage, enabling true rail-to-rail sensing - critical for detecting zero-crossing or low-side current shunt signals in motor drives.
Can LM339BIDR replace legacy LM339 in existing designs?
Yes, LM339BIDR is a drop-in replacement for LM339, LM239, and LM2901 across "A" and "V" grades. It retains identical pinout, SOIC-14 package, and functional behavior while improving offset voltage (±5.5mV vs ±9mV), ESD rating (2kV vs 1.5kV), and response time (1µs vs 1.3µs), requiring no layout changes.
What output configuration does LM339BIDR use?
The LM339BIDR uses open-collector outputs on all four channels, requiring external pull-up resistors. This configuration enables wired-OR logic, level translation across voltage domains (e.g., 3.3V MCU interfacing with 12V loads), and direct driving of optocouplers or relay drivers without additional buffering.
Is LM339BIDR suitable for automotive applications?
The LM339BIDR is qualified for industrial temperature range (−40°C to +85°C) and not AEC-Q100 certified. For automotive use, TI recommends the LM2901B-Q1 variant, which shares identical electrical specs but includes automotive qualification, enhanced ESD robustness, and PPAP documentation support.
LM339BIDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Differential
- Number of Elements:
- 4
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 2V ~ 36V
- :
- 3.5mV @ 5V
- Voltage - Input Offset (Max):
- 0.025µA @ 5V
- Current - Input Bias (Max):
- 21mA
- Current - Output (Typ):
- 1.2mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 1µs (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
LM339BIDR FAQ
1.How can I place an order for LM339BIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM339BIDR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM339BIDR reliable?
The price and inventory of LM339BIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM339BIDR is usually 5 days.
3.What payment methods are accepted for LM339BIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM339BIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM339BIDR?
LM339BIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM339BIDR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM339BIDR?
For technical support, including LM339BIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM339BIDR requirements.
6.How does Aetrix verify that LM339BIDR is sourced from the original manufacturer or authorized distributors?
All LM339BIDR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM339BIDR meets industry standards.
7.What is the process for return or replacement of LM339BIDR?
All LM339BIDR units undergo pre-shipment inspection (PSI). If there is an issue with LM339BIDR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM339BIDR part is unused and in its original packaging.
Return procedure for LM339BIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM339BIDR Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
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NCX2200GMAZ
NXP Semiconductors
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