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LM26LVCISDX-120/NOPB
Texas Instruments
THERMOSTAT 120DEGC OPN DRN 6WSON
3815 Pcs New Original In Stock
Thermostat 120°C Active High, Active Low Open Drain, Push-Pull 6-WSON (2.2x2.5)
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5.0 / 5.0
- (490 Ratings)
LM26LVCISDX-120/NOPB
Product Overview
1295378
DiGi Electronics Part Number
LM26LVCISDX-120/NOPB-DGManufacturer
Texas Instruments
LM26LVCISDX-120/NOPB
Description
THERMOSTAT 120DEGC OPN DRN 6WSONInventory
3815 Pcs New Original In Stock
Thermostat 120°C Active High, Active Low Open Drain, Push-Pull 6-WSON (2.2x2.5)
Quantity
Minimum 1
Minimum 1
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LM26LVCISDX-120/NOPB Technical Specifications
Category
Temperature Sensors, Thermostats - Solid State
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Trip Temperature Threshold
Hot
Switching Temperature
120°C
Accuracy
±2.2°C
Current - Output (Max)
7mA
Output Type
Open Drain, Push-Pull
Output
Active High, Active Low
Output Function
OverTemp, /OverTemp, VTemp
Selectable Hysteresis
No
Features
Trip Test
Voltage - Supply
1.6 V ~ 5.5 V
Current - Supply
8µA
Operating Temperature
-50°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
6-WDFN Exposed Pad
Supplier Device Package
6-WSON (2.2x2.5)
Base Product Number
LM26
Datasheet & Documents
Manufacturer Product Page
LM26LVCISDX-120/NOPB Specifications
HTML Datasheet
LM26LVCISDX-120/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
296-44271-2
LM26LVCISDX-120-DG
LM26LVCISDX-120
296-44271-1
-296-44271-1-DG
296-44271-6
LM26LVCISDX-120/NOPB-DG
-LM26LVCISDX
-296-44271-1
Standard Package
4,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
環境にやさしい包装と価格のバランスが絶妙です。
Dec 02, 2025
Their efficient shipping process and dedicated support team are truly commendable.
Dec 02, 2025
Reliability is what sets DiGi Electronics apart; I know I can count on their solutions.
Dec 02, 2025
I've never encountered such friendly and efficient support. Truly impressive!
Dec 02, 2025
I trust DiGi Electronics for products that combine quality with affordability.
Dec 02, 2025
Thanks to DiGi Electronics' pricing, I can afford to try new gadgets more often.
Dec 02, 2025
Excellent delivery speed and packaging that kept everything secure during transit.
Dec 02, 2025
Sending my order was quick, and the products met all my quality expectations.
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Frequently Asked Questions (FAQ)
How does the LM26LVCISDX-120/NOPB thermostat’s lack of selectable hysteresis impact thermal design in high-vibration industrial environments, and what mitigation strategies should I consider?
The LM26LVCISDX-120/NOPB has fixed hysteresis, which means it lacks user-adjustable trip-point recovery control. In high-vibration or thermally noisy environments—such as motor drives or automotive under-hood applications—this can lead to rapid output toggling near the 120°C threshold, causing unintended system resets or fan cycling. To mitigate this, add external RC filtering on the output line or implement software debouncing in the host controller. Alternatively, place a small thermal mass (e.g., copper pour or heatsink) near the sensor to dampen transient temperature spikes, ensuring stable operation without false triggers.
Can I replace the LM26LVCISDX-120/NOPB with a MAX6501HKA120+ in a 1.8V battery-powered system, and what are the key reliability trade-offs?
While the MAX6501HKA120+ also offers a 120°C trip point and open-drain output, it operates down to 2.7V, making it incompatible with the LM26LVCISDX-120/NOPB’s full 1.6V minimum supply range—critical for low-voltage battery systems. Replacing the LM26LVCISDX-120/NOPB with the MAX6501 risks undervoltage lockout or erratic behavior as the battery discharges below 2.7V. Additionally, the LM26LVCISDX-120/NOPB consumes only 8µA supply current vs. ~30µA for the MAX6501, significantly impacting battery life. Stick with the LM26LVCISDX-120/NOPB for ultra-low-power designs unless voltage headroom is guaranteed.
What layout considerations are critical when placing the LM26LVCISDX-120/NOPB on a 4-layer PCB to ensure accurate thermal sensing near a power MOSFET?
To ensure the LM26LVCISDX-120/NOPB accurately reflects the MOSFET’s junction temperature, place it within 5 mm of the heat source and connect its exposed thermal pad directly to a solid ground plane using multiple vias (≥4). Avoid routing high-current traces beneath the sensor, as I²R heating can skew readings. Use a thermal relief pattern only if necessary for soldering—solid connections improve thermal conductivity. Also, isolate the sensor’s ground return path from noisy digital grounds to prevent ground bounce from affecting the analog trip threshold. Proper layout minimizes thermal lag and ensures the ±2.2°C accuracy is realized in practice.
Is the LM26LVCISDX-120/NOPB suitable for overtemperature protection in Li-ion battery packs operating up to 60°C ambient, given its 120°C trip point and ±2.2°C accuracy?
Yes, but with caution. The LM26LVCISDX-120/NOPB’s 120°C trip point provides a ~60°C margin above typical 60°C ambient conditions, which is acceptable for overtemperature shutdown—but only if the sensor is thermally coupled to the cell or protection IC. However, due to its ±2.2°C accuracy, the actual trip could occur as low as 117.8°C or as high as 122.2°C. In space-constrained packs with poor thermal coupling, localized hot spots may exceed safe limits before the sensor triggers. For critical applications, consider a lower trip-point device (e.g., LM26LVCISDX-90/NOPB at 90°C) or use the LM26LVCISDX-120/NOPB in conjunction with a secondary, faster-response protection mechanism like a PTC fuse.
How does the open-drain and push-pull output configuration of the LM26LVCISDX-120/NOPB affect noise immunity when driving a long trace to a microcontroller overtemp interrupt pin?
The LM26LVCISDX-120/NOPB provides both active-high (push-pull) and active-low (open-drain) outputs, offering flexibility. For long traces (>10 cm), the open-drain output (/OverTemp) is preferable because it allows use of a pull-up resistor to a clean supply rail at the MCU end, reducing susceptibility to ground noise and ground loops. The push-pull output (OverTemp) can cause signal integrity issues over distance due to higher edge rates and ground bounce. Always terminate the open-drain line with a 4.7kΩ to 10kΩ pull-up and include a 100pF capacitor near the MCU pin to suppress RF interference. This configuration enhances noise immunity in electrically noisy environments like motor controllers or inverters.
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LM26LVCISDX-120/NOPB CAD Models
Texas Instruments LM26LVCISDX-120/NOPB PCB symbols & footprints
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