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LM76CHM-5/NOPB
Texas Instruments
SENSOR DIGITAL -20C-85C 8SOIC
1572 Pcs New Original In Stock
Temperature Sensor Digital, Local -20°C ~ 85°C 12 b 8-SOIC
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5.0 / 5.0
- (457 Ratings)
LM76CHM-5/NOPB
Product Overview
1300061
DiGi Electronics Part Number
LM76CHM-5/NOPB-DGManufacturer
Texas Instruments
LM76CHM-5/NOPB
Description
SENSOR DIGITAL -20C-85C 8SOICInventory
1572 Pcs New Original In Stock
Temperature Sensor Digital, Local -20°C ~ 85°C 12 b 8-SOIC
Quantity
Minimum 1
Minimum 1
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LM76CHM-5/NOPB Technical Specifications
Category
Temperature Sensors, Analog and Digital Output
Packaging
Tube
Series
-
Product Status
Obsolete
Sensor Type
Digital, Local
Sensing Temperature - Local
-20°C ~ 85°C
Sensing Temperature - Remote
-
Output Type
I2C
Voltage - Supply
4.5V ~ 5.5V
Resolution
12 b
Features
Output Switch, Programmable Limit, Shutdown Mode
Accuracy - Highest (Lowest)
±0.5°C (±1°C)
Test Condition
25°C (-10°C ~ 45°C)
Operating Temperature
-20°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOIC
Base Product Number
LM76
Datasheet & Documents
HTML Datasheet
LM76CHM-5/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
LM76CHM5NOPB
LM76CHM-5-NDR
*LM76CHM-5/NOPB
-LM76CHM-5/NOPB-DG
-LM76CHM
Standard Package
95
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Le processus de traitement de commande chez DiGi Electronics est remarquablement efficace, ce qui nous permet de gagner un temps précieux.
de desembre 02, 2025
Customer support is always accessible and helpful.
de desembre 02, 2025
They deliver a consistently high level of efficiency in managing our orders, which we greatly value.
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Frequently Asked Questions (FAQ)
Can the LM76CHM-5/NOPB be used in a drop-in replacement scenario for the LM75 or TMP75 in an existing I2C temperature monitoring design?
The LM76CHM-5/NOPB can function similarly to the LM75 and TMP75 due to shared I2C interface and basic thermal sensing capabilities, but it is not a direct drop-in replacement. Unlike the LM75, the LM76CHM-5/NOPB has a 12-bit resolution and programmable hysteresis with overtemperature detection via an output switch, offering improved accuracy (±0.5°C at 25°C). However, register map differences and supply voltage requirements (4.5V–5.5V vs. 3.3V for TMP75) require firmware and level-shifting adjustments. Always verify address compatibility and thermal thresholds in your control logic when replacing LM75 or TMP75 with the LM76CHM-5/NOPB.
What are the design risks of using the LM76CHM-5/NOPB in a mixed-voltage system with 3.3V microcontrollers?
The LM76CHM-5/NOPB requires a 4.5V–5.5V supply, which poses a significant risk when interfacing with 3.3V I2C microcontrollers, as overvoltage on the SDA and SCL lines may damage the MCU. To safely integrate the LM76CHM-5/NOPB, use bidirectional I2C level shifters (e.g., TXS0108E or PCA9306) between the sensor and controller. Avoid relying on microcontroller input tolerance alone; verify the MCU's 5V-tolerant pin specifications. Also, ensure stable 5V regulation to prevent performance drift or failed communications in noisy environments.
How does the obsolete status of the LM76CHM-5/NOPB impact long-term design-in reliability and supply chain planning?
The 'Obsolete' status of the LM76CHM-5/NOPB from Texas Instruments indicates no future production, creating a risk for long-term manufacturing and maintenance. While 1,561 units are currently in stock as new original parts, this supply is limited and non-replenishable. For designs with lifecycle exceeding 3–5 years, consider migration to active alternatives like the LM73 or TMP100, which offer comparable I2C temperature sensing with better availability. If continuing with LM76CHM-5/NOPB, secure lifetime buys and validate second-source authenticity to avoid counterfeit risk.
What layout and thermal considerations are critical when placing the LM76CHM-5/NOPB near high-power components on a PCB?
The LM76CHM-5/NOPB measures its local die temperature, making it highly susceptible to thermal conduction from nearby high-power devices. To ensure accurate ambient temperature readings, place the sensor away from heat sources (e.g., voltage regulators, power FETs), use thermal relief traces, and consider moats (cutouts in copper planes) around the 8-SOIC package. Ensure adequate airflow and avoid enclosing the sensor in sealed zones. For precise monitoring, calibrate the system with real-world thermal profiling to account for PCB-induced self-heating effects on the LM76CHM-5/NOPB.
Is the LM76CHM-5/NOPB suitable for industrial applications requiring shutdown mode during idle periods to reduce system power?
Yes, the LM76CHM-5/NOPB includes a programmable shutdown mode, which significantly reduces supply current and is beneficial in industrial systems aiming for low power during idle cycles. However, because the device is limited to -20°C to +85°C operation, it may not suit harsh environments exceeding these ranges. Additionally, wake-up time from shutdown must be accounted for in control loops—ensure your microcontroller allows sufficient stabilization time before reading temperature data. Use shutdown mode strategically to balance power savings and response latency in your system using the LM76CHM-5/NOPB.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LM76CHM-5/NOPB CAD Models
Texas Instruments LM76CHM-5/NOPB PCB symbols & footprints
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