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Texas Instruments LM60BIM3X
- Part No.:
- LM60BIM3X
- Manufacturer:
- Texas Instruments
- Category:
- Analog and Digital Output
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM60BIM3X.pdf
- Description:
- SENSOR ANALOG -25C-125C SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,322
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Product details
Overview
LM60BIM3X from Texas Instruments is a precision analog bipolar temperature sensor in SOT-23 (DBZ) package, delivering linear 6.25 mV/°C output with 424 mV offset at 0°C, ±3°C accuracy over −40°C to +125°C (new chip), and 70 μA max quiescent current - enabling battery-powered remote sensing in space-constrained PCBs.
For engineers reviewing the LM60BIM3X datasheet, LM60BIM3X pinout, LM60BIM3X application, or LM60BIM3X equivalent, this page delivers verified thermal sensor specifications, SOT-23 terminal mapping, real-world use cases in mobile and power systems, and validated alternative options for design continuity.
Technical Context
The LM60BIM3X implements a Class-A emitter-follower output stage, providing low-impedance voltage output (800 Ω max) directly proportional to die temperature without requiring external calibration. Its transfer function VO = (6.25 mV/°C × T °C) + 424 mV enables direct Celsius readout from 174 mV (−40°C) to 1205 mV (125°C) using a single 2.7V–10V supply.
Thermal self-heating is limited to ≤0.1°C in still air due to sub-70 μA quiescent current and optimized SOT-23 thermal resistance (RθJA = 240.6°C/W for new chip). No shutdown pin is present - power gating is achieved by driving +VS from logic outputs, leveraging intrinsic low-power operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Sensitivity | 6.25 mV/°C - enables direct ADC conversion with 0.1°C resolution using 12-bit 3.3V reference |
| Offset Voltage | 424 mV at 0°C - allows full-range (−40°C to +125°C) measurement with single positive supply only |
| Accuracy | ±3°C over −40°C to +125°C (new chip) - meets industrial-grade thermal monitoring requirements without trimming |
| Supply Range | 2.7V to 10V - supports direct connection to Li-ion cells (3.0–4.2V), 3.3V/5V rails, and legacy 9V supplies |
| Quiescent Current | 70 μA max (new chip) - limits self-heating to ≤0.1°C in SOT-23, critical for surface-mount thermal fidelity |
| Output Impedance | 800 Ω max - permits RC filtering (e.g., 1 μF cap → 199 Hz LPF) without signal distortion |
| Nonlinearity | ±0.8°C max - ensures error remains bounded across full range, simplifying software compensation |
Pinout & Package
SOT-23 (DBZ) 3-pin package: 2.37 mm × 2.92 mm nominal footprint, gull-wing leads, JEDEC MO-178 compatible. Thermal pad not present; GND pin serves as primary thermal path to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +VS | Power input | Accepts 2.7V–10V DC; must be bypassed with 0.1 μF to GND in noisy environments |
| VOUT | Analog output | Emitter-follower voltage source; drives ≤1 mA load; 120 Ω typical / 800 Ω max output impedance |
| GND | Reference ground | Die substrate connection and primary thermal conduction path to PCB; must tie to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply negative-temp capability | 424 mV offset enables −40°C detection with no negative rail or level-shifting circuitry |
| Low self-heating | 70 μA max current + SOT-23 RθJA = 240.6°C/W yields <0.1°C internal rise - preserves measurement integrity on small PCBs |
| Factory-calibrated linearity | ±0.8°C nonlinearity over full range eliminates need for multi-point calibration in cost-sensitive designs |
| No external components required | Operates stand-alone; only decoupling cap needed - reduces BOM count and layout area vs. thermistor+ADC solutions |
| ESD robustness | ±2500 V HBM rating - survives handling and board assembly without special ESD precautions |
Applications
| Mobile Device Thermal Management | Power Supply Module Monitoring |
|---|---|
Use Scenario: Real-time battery and SoC die temperature tracking in smartphones and tablets to throttle performance before thermal throttling thresholds are breached. IC Role / Device Role / Timing Role: Analog temperature transducer feeding ADC input of PMIC or application processor; no timing or clocking function. Use Value: 6.25 mV/°C slope and 424 mV offset allow direct firmware interpretation of raw ADC codes into Celsius without lookup tables or floating-point math. | Use Scenario: Continuous monitoring of MOSFET junction and inductor core temperature in DC/DC converters to prevent thermal runaway during high-load transients. IC Role / Device Role / Timing Role: Precision analog sensor placed adjacent to hot components; provides feedback to thermal protection logic or fan control IC. Use Value: ±3°C accuracy over −40°C to +125°C ensures reliable trip-point activation even under worst-case ambient and self-heating conditions. |
| Battery Pack Safety Sensing | HVAC Controller Ambient Sensing |
Use Scenario: Distributed temperature monitoring across Li-ion cell stacks in portable power tools and e-bikes to detect localized overheating and trigger cutoff. IC Role / Device Role / Timing Role: Low-power analog sensor powered directly from battery monitor IC's LDO output; operates continuously during sleep mode. Use Value: 70 μA max quiescent current extends pack standby life while maintaining thermal vigilance - critical for UL/IEC safety compliance. | Use Scenario: Room-temperature sensing in smart thermostats and HVAC control panels where long-term stability and humidity resilience are required. IC Role / Device Role / Timing Role: Centigrade sensor mounted on front-panel PCB; output digitized by microcontroller ADC for PID loop control. Use Value: ±0.2°C long-term drift after 1000 hours at 125°C ensures calibration holds over product lifetime without field recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-output temperature sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM60CIM3X/NOPB | ±4°C accuracy over −40°C to +125°C vs. LM60BIM3X's ±3°C; otherwise identical pinout, gain, and supply specs | Lower accuracy grade suitable for non-critical ambient sensing where ±4°C tolerance is acceptable | Select LM60CIM3X/NOPB when cost sensitivity outweighs tight thermal accuracy requirements |
| TMP235DBZT | Higher accuracy (±0.5°C at 25°C), lower quiescent current (9 μA), but requires 1.8V–5.5V supply and has different output scaling (10 mV/°C, 500 mV offset) | Enables ultra-low-power IoT nodes and higher-precision closed-loop control, but demands ADC re-scaling and supply voltage compatibility check | Choose TMP235DBZT when upgrading accuracy or extending battery life is prioritized over drop-in replacement |
Compared with LM60BIM3X, LM60CIM3X/NOPB trades 1°C accuracy for potential cost reduction while retaining identical form factor and interface, whereas TMP235DBZT offers superior precision and efficiency at the expense of supply voltage range and output scaling compatibility.
Availability
LM60BIM3X is available at Aetrix Electronics and suitable for mobile device thermal management, power supply module monitoring, and battery pack safety sensing requiring stable component supply across production lifecycles.
Supply support for LM60BIM3X 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 company specializing in analog and embedded processing technologies, with leadership in precision analog sensors and power management ICs.
The LM60 series was designed specifically for cost-sensitive, space-constrained applications needing factory-calibrated analog temperature sensing - targeting mobile, computing, and industrial power systems where simplicity and reliability are paramount.
FAQ
What is the operating temperature range of the LM60BIM3X?
The LM60BIM3X is specified for ±3°C accuracy over −40°C to +125°C when using the new chip revision (CSO: RFB), and over −25°C to +125°C for legacy chip (CSO: GF6/SHE). The device operates without damage down to −40°C regardless of revision, but guaranteed accuracy begins at −25°C for legacy units. Full-range output spans 174 mV (−40°C) to 1205 mV (125°C).
Does the LM60BIM3X require external calibration?
No, the LM60BIM3X is factory-calibrated with 6.25 mV/°C sensitivity and 424 mV offset at 0°C, eliminating need for system-level trimming. Its ±0.8°C nonlinearity and ±3°C total accuracy over −40°C to +125°C are guaranteed without user calibration. External compensation is optional only for applications demanding sub-degree precision beyond datasheet specs.
Can the LM60BIM3X be powered directly from a microcontroller GPIO?
Yes - the LM60BIM3X draws only 70 μA max, allowing direct powering from most MCU GPIO pins rated for ≥5 mA sink/source. This enables true shutdown control: set GPIO low to disable +VS and reduce system current to near-zero. Ensure GPIO voltage meets LM60BIM3X's 2.7V minimum supply requirement; 3.3V GPIOs are fully compatible.
What is the maximum capacitive load the LM60BIM3X can drive?
The LM60BIM3X can reliably drive up to 1 μF capacitive load without oscillation or settling degradation, forming a 199 Hz low-pass filter with its 800 Ω max output impedance. Larger caps increase response time; for example, 10 μF raises time constant to ~2 ms. TI recommends adding 0.1 μF bypass from +VS to GND in noisy environments, independent of output loading.
How does self-heating affect LM60BIM3X measurement accuracy?
Self-heating in the LM60BIM3X is limited to ≤0.1°C in still air due to 70 μA max quiescent current and SOT-23 thermal resistance (RθJA = 240.6°C/W for new chip). This error is negligible for most applications; it becomes relevant only when measuring surfaces <0.5°C above ambient or in sealed enclosures with zero airflow. PCB copper area under GND pin further reduces thermal resistance.
LM60BIM3X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Sensor Type:
- Analog, Local
- Sensing Temperature - Local:
- -25°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.7V ~ 10V
- Resolution:
- 6.25mV/°C
- Features:
- -
- Accuracy - Highest (Lowest):
- ±2°C (±3°C)
- Test Condition:
- 25°C (-25°C ~ 125°C)
- Operating Temperature:
- -25°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-3
LM60BIM3X FAQ
1.How can I place an order for LM60BIM3X through Aetrix?
Please submit a Request for Quotation (RFQ) for LM60BIM3X 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 LM60BIM3X reliable?
The price and inventory of LM60BIM3X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM60BIM3X is usually 5 days.
3.What payment methods are accepted for LM60BIM3X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM60BIM3X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM60BIM3X?
LM60BIM3X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM60BIM3X 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 LM60BIM3X?
For technical support, including LM60BIM3X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM60BIM3X requirements.
6.How does Aetrix verify that LM60BIM3X is sourced from the original manufacturer or authorized distributors?
All LM60BIM3X 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 LM60BIM3X meets industry standards.
7.What is the process for return or replacement of LM60BIM3X?
All LM60BIM3X units undergo pre-shipment inspection (PSI). If there is an issue with LM60BIM3X, 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 LM60BIM3X part is unused and in its original packaging.
Return procedure for LM60BIM3X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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