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Texas Instruments LM62BIM3/NOPB
- Part No.:
- LM62BIM3/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog and Digital Output
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM62BIM3/NOPB.pdf
- Description:
- SENSOR ANALOG 0C-90C SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,623
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Product details
Overview
LM62BIM3/NOPB from Texas Instruments is a precision analog-output CMOS temperature sensor in SOT-23-3 package, delivering linear +15.6 mV/°C output with +480 mV DC offset, calibrated for 0°C to +90°C range at +2.7V to +10V supply, and achieving ±2.0°C accuracy at 25°C - used for thermal monitoring in battery-powered handheld devices.
For engineers reviewing the LM62BIM3/NOPB datasheet, LM62BIM3/NOPB pinout, LM62BIM3/NOPB application, or LM62BIM3/NOPB equivalent, key selection criteria include its low 130 μA quiescent current, 4.7 kΩ max output impedance, intrinsic shutdown capability, and suitability for single-supply remote sensing without negative rails.
Technical Context
The LM62BIM3/NOPB implements a monolithic silicon bandgap-based temperature transducer with factory-trimmed gain and offset, producing a ratiometric voltage output defined as VO = (+15.6 mV/°C × T°C) + 480 mV. Its architecture eliminates need for external calibration or signal conditioning in basic readout circuits.
Operating from +2.7V to +10V, it draws ≤130 μA across temperature and supply, enabling direct drive from logic outputs or low-power microcontroller GPIOs. Thermal self-heating is limited to ≤0.2°C in still air due to sub-130 μW dissipation, ensuring measurement fidelity without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +10V - supports wide input range including single-cell Li-ion (3.0–3.6V) and 3.3V/5V system rails. |
| Output Sensitivity | +15.6 mV/°C - enables direct ADC conversion with ~64°C/V resolution using standard 10-bit SAR ADCs. |
| DC Offset Voltage | +480 mV at 0°C - allows full-scale 0°C–90°C measurement (480–1884 mV) using only positive supply, no bipolar rail needed. |
| Accuracy (25°C) | ±2.0°C (max) - ensures reliable thermal threshold detection in consumer electronics without post-manufacture trimming. |
| Quiescent Current | 130 μA (max) - enables >1-year battery life in coin-cell–powered devices operating at 1–10 Hz sampling rate. |
| Output Impedance | 4.7 kΩ (max) - compatible with high-impedance ADC inputs and permits RC filtering (e.g., 1 μF + 4.7 kΩ = 34 Hz LPF) without response degradation. |
| Nonlinearity | ±0.8°C (max) - maintains monotonicity and simplifies linear interpolation in firmware over full 0°C–90°C range. |
Pinout & Package
SOT-23-3 (DBZ) package: 1.12 mm max height, 2.80–3.04 mm length, 1.2–1.4 mm width, 0.95 mm pin pitch; thermally optimized with die backside bonded to GND pin for minimal junction-to-board thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VS (Pin 1) | Positive Supply Input | Accepts +2.7V to +10V; internal regulator provides stable bias for sensor core independent of supply ripple. |
| GND (Pin 2) | Ground Reference & Thermal Path | Die backside directly attached to this pin; serves as primary thermal conduction path to PCB copper for accurate surface temperature sensing. |
| VO (Pin 3) | Analog Temperature Output | High-impedance voltage source (≤4.7 kΩ); output scales linearly from 480 mV (0°C) to 1884 mV (90°C); requires no load buffering for typical ADC interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Calibrated Scale Factor | +15.6 mV/°C with ±0.5% gain tolerance - eliminates need for system-level gain calibration in production test. |
| Zero-Celsius Offset | +480 mV output at 0°C - enables true 0°C measurement on single-supply systems without level-shifting circuitry. |
| Low-Power Shutdown | Inherent via <130 μA operation - allows direct connection to open-drain logic outputs for on-demand activation without external switches. |
| Thermal Self-Heating | ≤0.2°C in still air - ensures measurement error remains below system thermal control thresholds in enclosed handheld enclosures. |
| Capacitive Load Drive | Stable with ≥1 μF output capacitance - permits simple RC noise filtering without oscillation or phase shift affecting thermal time constant. |
Applications
| Cellular Phones | Power Supply Modules |
|---|---|
Use Scenario: Real-time battery and SoC die temperature monitoring during fast charging and RF transmission bursts. IC Role / Device Role / Timing Role: Analog temperature transducer providing continuous voltage output proportional to local PCB temperature near power ICs. Use Value: Enables dynamic charge rate throttling when battery temperature exceeds 45°C, preventing thermal runaway per IEC 62133. |
Use Scenario: Thermal foldback control in DC-DC converter modules to prevent MOSFET overheating under sustained load. IC Role / Device Role / Timing Role: Primary temperature sense element feeding into comparator or microcontroller ADC for overtemperature shutdown. Use Value: Delivers ±2.0°C accuracy at 25°C and ±2.5°C/−2.0°C over 0°C–90°C, meeting IPC-9592 Class 2 thermal protection requirements. |
| Battery Management Systems | HVAC Controllers |
Use Scenario: Cell pack temperature profiling in multi-cell Li-ion packs for state-of-health estimation and balancing control. IC Role / Device Role / Timing Role: Localized temperature node mounted on busbar or cell tab, interfacing directly to BMS MCU's 10-bit ADC. Use Value: 480–1884 mV output range maps cleanly to 0–3.3V ADC reference, eliminating external op-amp scaling and reducing BOM count. |
Use Scenario: Ambient and heat exchanger coil temperature sensing in residential smart thermostats. IC Role / Device Role / Timing Role: Low-power, high-stability sensor placed on PCB near airflow path to monitor HVAC system thermal performance. Use Value: 130 μA quiescent current enables 10-year operation on AA batteries at 1-sample-per-minute duty cycle, satisfying ENERGY STAR standby requirements. |
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 |
|---|---|---|---|
| LM75BIMM/NOPB | I²C digital output, −55°C to +125°C range, ±2°C accuracy, 250 μA active current | Requires MCU I²C interface and firmware driver; better for multi-sensor networks but adds software overhead | Choose LM75BIMM/NOPB when digital bus integration and extended temperature range outweigh analog simplicity. |
| TSYS01-G001 | Digital SPI/I²C output, −40°C to +125°C, ±0.1°C typical accuracy, 1.5 μA standby current | Higher precision and ultra-low sleep current, but requires calibration data handling and digital interface design | Choose TSYS01-G001 for medical-grade thermal logging where ±0.1°C stability and <2 μA sleep current are mandatory. |
Compared with LM75BIMM/NOPB and TSYS01-G001, the LM62BIM3/NOPB offers lowest system-level design complexity for analog-centric applications-no firmware, no communication protocol, no external reference-making it optimal for cost-sensitive, low-pin-count, or legacy analog designs.
Availability
LM62BIM3/NOPB is available at Aetrix Electronics and suitable for cellular phones, power supply modules, battery management systems, HVAC controllers, and disk drives requiring stable component supply across industrial and consumer production cycles.
Supply support for LM62BIM3/NOPB 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer markets.
The LM62BIM3/NOPB belongs to TI's precision analog temperature sensor product line, designed specifically for low-cost, single-supply, high-stability thermal monitoring in space-constrained portable electronics.
FAQ
What is the operating temperature range of the LM62BIM3/NOPB?
The LM62BIM3/NOPB is rated for full operation from 0°C to +90°C ambient temperature. Its output voltage ranges linearly from +480 mV at 0°C to +1884 mV at +90°C, with guaranteed accuracy of ±2.5°C/−2.0°C across this range. The device's junction temperature must not exceed +125°C, and storage temperature is specified from −65°C to +150°C.
Does the LM62BIM3/NOPB require external calibration or trimming?
No, the LM62BIM3/NOPB is factory-calibrated with a nominal sensitivity of +15.6 mV/°C and +480 mV offset at 0°C. It achieves ±2.0°C accuracy at 25°C and ±2.5°C/−2.0°C over 0°C to +90°C without user calibration. Gain and offset tolerances are trimmed during wafer sort, eliminating need for board-level trimming or lookup tables in most applications.
Can the LM62BIM3/NOPB be powered directly from a microcontroller GPIO pin?
Yes, the LM62BIM3/NOPB draws ≤130 μA quiescent current and operates down to +2.7V, making it compatible with many 3.3V GPIO outputs capable of sourcing ≥2 mA. Its low power enables intrinsic shutdown - driving VS low via GPIO turns off the sensor completely, reducing system standby current to near-zero without external FETs.
What is the maximum capacitive load the LM62BIM3/NOPB output can drive?
The LM62BIM3/NOPB output is stable with capacitive loads up to at least 1 μF, forming a 34 Hz low-pass filter when combined with its 4.7 kΩ max output impedance. This allows effective noise filtering in electrically noisy environments without compromising thermal response, since the LM62's thermal time constant is orders of magnitude slower than the RC time constant.
How does the LM62BIM3/NOPB handle self-heating effects in enclosed designs?
The LM62BIM3/NOPB limits self-heating to ≤0.2°C in still air due to its <130 μW power dissipation (130 μA × 3.0 V). In PCB-mounted configurations, thermal resistance junction-to-ambient (θJA) is 450°C/W without heatsink, meaning even at full 10V supply, self-heating remains <0.5°C - well within its ±2.0°C accuracy spec at room temperature.
LM62BIM3/NOPB 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:
- Obsolete
- Sensor Type:
- Analog, Local
- Sensing Temperature - Local:
- 0°C ~ 90°C
- Sensing Temperature - Remote:
- -
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.7V ~ 10V
- Resolution:
- 15.6mV/°C
- Features:
- Shutdown Mode
- Accuracy - Highest (Lowest):
- ±2°C (±2.5°C)
- Test Condition:
- 25°C (0°C ~ 90°C)
- Operating Temperature:
- 0°C ~ 90°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-3
LM62BIM3/NOPB FAQ
1.How can I place an order for LM62BIM3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM62BIM3/NOPB 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 LM62BIM3/NOPB reliable?
The price and inventory of LM62BIM3/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM62BIM3/NOPB is usually 5 days.
3.What payment methods are accepted for LM62BIM3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM62BIM3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM62BIM3/NOPB?
LM62BIM3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM62BIM3/NOPB 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 LM62BIM3/NOPB?
For technical support, including LM62BIM3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM62BIM3/NOPB requirements.
6.How does Aetrix verify that LM62BIM3/NOPB is sourced from the original manufacturer or authorized distributors?
All LM62BIM3/NOPB 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 LM62BIM3/NOPB meets industry standards.
7.What is the process for return or replacement of LM62BIM3/NOPB?
All LM62BIM3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM62BIM3/NOPB, 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 LM62BIM3/NOPB part is unused and in its original packaging.
Return procedure for LM62BIM3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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