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Texas Instruments LM26LVQISD-130/NOPB
- Part No.:
- LM26LVQISD-130/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Thermostats - Solid State
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
LM26LVQISD-130/NOPB.pdf
- Description:
- THERMOSTAT 130DEGC OPN DRN 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:940
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Product details
Overview
LM26LVQISD-130/NOPB from Texas Instruments is a factory-preset, dual-output temperature monitoring IC with active-high push-pull and active-low open-drain overtemperature switch outputs plus a linear NTC analog voltage output (VTEMP). It operates from 1.6 V to 5.5 V, features 5°C hysteresis, ±2.3°C trip point accuracy across –50°C to 150°C, and is qualified to AEC-Q100 Grade 0 for automotive under-hood thermal protection.
For engineers reviewing the LM26LVQISD-130/NOPB datasheet, LM26LVQISD-130/NOPB pinout, LM26LVQISD-130/NOPB application, or LM26LVQISD-130/NOPB equivalent, key selection criteria include its 130°C factory-trip point, WSON-6 package thermal performance, TRIP_TEST–enabled in-system verification, and dual digital output architecture supporting latch-and-clear functionality in battery management and power-constrained systems.
Technical Context
The LM26LVQISD-130/NOPB integrates a precision bandgap-based temperature sensor, programmable DAC reference (VTRIP), and dual-comparator output stage. Its VTEMP output uses Gain 4 (–12.8 mV/°C) calibrated for 130°C to 150°C trip range, delivering millivolt-level analog voltage proportional to die temperature with short-circuit protection.
Digital outputs respond within 2.3 ms of power-on; OVERTEMP asserts high when TDIE ≥ 130°C and releases at ≤125°C, while OVERTEMP pulls low under same condition. TRIP_TEST enables functional test mode by forcing both outputs active and routing VTRIP to VTEMP for threshold validation without thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Trip Point | Factory-set to 130°C ±2.2°C - defines thermal shutdown threshold for automotive power modules and battery packs. |
| Hysteresis | 5°C fixed - prevents output oscillation during slow thermal transients near trip point. |
| Supply Range | 1.6 V to 5.5 V - supports direct interface with 1.8-V microcontrollers and legacy 3.3/5-V systems. |
| Quiescent Current | 8 µA typical - enables always-on thermal monitoring in energy-sensitive applications like EV battery BMS. |
| VTEMP Gain | –12.8 mV/°C (Gain 4) - optimized linearity and resolution for high-temperature range (130°C–150°C). |
| Accuracy | ±2.3°C over –50°C to 150°C - ensures reliable thermal margin enforcement in safety-critical automotive environments. |
| ESD Rating | HBM ±4500 V, CDM ±1000 V - meets AEC-Q100 stress requirements for automotive PCB assembly. |
Pinout & Package
LM26LVQISD-130/NOPB is housed in a thermally enhanced 6-pin WSON package (2.2 mm × 2.5 mm, 0.75 mm height) with exposed thermal pad. The pad must be soldered to PCB ground for optimal thermal resistance (RθJB = 70°C/W) and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TRIP_TEST | Digital input | Active-high test enable: forces digital outputs active and routes VTRIP to VTEMP for production verification. |
| 2 - GND | Power ground | Reference node for all analog/digital circuitry; connects to thermal pad for improved thermal conduction. |
| 3 - OVERTEMP | Digital output | Active-low, open-drain - requires external pull-up; used for wired-OR fault signaling in multi-sensor systems. |
| 4 - VDD | Power supply | 1.6–5.5 V input; powers internal sensor, DAC, comparators, and output drivers. |
| 5 - OVERTEMP | Digital output | Active-high, push-pull - drives logic-high directly; suitable for MCU interrupt inputs without pull-up. |
| 6 - VTEMP | Analog output | NTC voltage output (e.g., ~3278 mV at –50°C, ~958 mV at 130°C); short-circuit protected. |
Key Features
| Feature | Design Value |
|---|---|
| Latching function | OVERTEMP remains asserted after trip until TRIP_TEST is pulled low or power cycled - enables persistent fault capture in unattended systems. |
| Dual digital outputs | Simultaneous push-pull (OVERTEMP) and open-drain (OVERTEMP) - supports flexible MCU interface options and system-level fault bus architectures. |
| VTEMP short-circuit protection | Internal current limiting prevents damage if VTEMP is accidentally shorted to GND or VDD - improves field reliability in dense PCB layouts. |
| Power supply noise rejection | –82 dB typical - maintains stable trip point under noisy 12-V automotive supply conditions without additional filtering. |
| Low-voltage operation | Functional down to 1.6 V - allows integration into ultra-low-power subsystems powered by buck-boost converters or partially discharged batteries. |
Applications
| Automotive Power Module Protection | Battery Pack Thermal Management |
|---|---|
Use Scenario: Monitoring IGBT/module junction temperature in EV traction inverters during high-load operation. IC Role / Device Role / Timing Role: Temperature switch providing hardware-level overtemperature cutoff signal to gate driver disable input. Use Value: 130°C trip point aligns with silicon carbide module safe operating area; 5°C hysteresis prevents chattering during thermal soak-back. | Use Scenario: Detecting thermal runaway in lithium-ion battery packs during fast charging or high-current discharge. IC Role / Device Role / Timing Role: Primary thermal cutoff sensor feeding into battery management system (BMS) fault logic. Use Value: AEC-Q100 qualification ensures reliability in automotive-grade BMS; dual outputs allow simultaneous MCU alert and hardware latch. |
| Industrial Motor Drive Overheat Detection | Server PSU Fan Control Interface |
Use Scenario: Protecting brushless DC motor drivers in factory automation equipment from coil overheating. IC Role / Device Role / Timing Role: Standalone thermal monitor interfacing directly with motor controller's enable/disable pin. Use Value: 8 µA quiescent current enables always-on monitoring without impacting standby power budget; WSON-6 footprint minimizes board space. | Use Scenario: Providing analog temperature feedback to server power supply fan controller ICs for variable-speed cooling. IC Role / Device Role / Timing Role: Analog temperature sensor supplying linear VTEMP signal to PWM fan driver. Use Value: Gain 4 (–12.8 mV/°C) delivers high-resolution voltage change across 130°C–150°C range where PSU components operate hottest. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch and sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM26LVQISD-135/NOPB | Factory-trip point set to 135°C (±2.2°C); identical package, pinout, and electrical specs. | Used where higher thermal margin is required before shutdown, e.g., high-ambient industrial enclosures. | Select when system thermal design requires 5°C higher trip threshold than LM26LVQISD-130/NOPB. |
| MAX6505UTP130+T | Single-output (open-drain only), no analog VTEMP; 130°C trip, ±3°C accuracy; SOT23-5 package. | Lacks analog output and latching capability; suited for cost-sensitive, space-constrained designs needing only basic overtemp flag. | Choose only if analog sensing and TRIP_TEST verification are not required; verify SOT23-5 thermal performance vs. WSON-6 for target PCB layout. |
Compared with LM26LVQISD-130/NOPB, the -135 variant offers identical functionality at +5°C trip point, while MAX6505UTP130+T reduces feature set to meet lower-cost, single-output requirements-neither provides the dual-digital + analog combination or AEC-Q100 Grade 0 assurance of the original.
Availability
LM26LVQISD-130/NOPB is available at Aetrix Electronics and suitable for automotive power modules, battery management systems, and industrial motor drives requiring stable component supply, long-term lifecycle support, and AEC-Q100–qualified thermal protection.
Supply support for LM26LVQISD-130/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 leader specializing in analog, embedded processing, and power management technologies with broad automotive and industrial design expertise.
The LM26LV-Q1 product line delivers AEC-Q100–qualified temperature monitoring ICs engineered specifically for automotive under-hood and battery-pack thermal protection, combining precision switching, analog sensing, and robust packaging.
FAQ
What is the factory-set trip temperature for LM26LVQISD-130/NOPB?
The LM26LVQISD-130/NOPB has a factory-preset overtemperature trip point of 130°C, with accuracy specified as ±2.2°C over the full –50°C to 150°C operating range. This value is laser-trimmed during manufacturing and cannot be adjusted in the field. The device also includes 5°C built-in hysteresis, releasing the outputs at approximately 125°C.
How does the TRIP_TEST pin function on LM26LVQISD-130/NOPB?
When the TRIP_TEST pin is driven high, the LM26LVQISD-130/NOPB forces both OVERTEMP and OVERTEMP outputs into their active states regardless of actual temperature, and routes the internal trip-reference voltage (VTRIP) to the VTEMP pin. This enables in-system functional verification of comparator and output circuitry without thermal cycling, critical for production test and field diagnostics.
Can LM26LVQISD-130/NOPB operate from a 1.8-V supply?
Yes, LM26LVQISD-130/NOPB is fully specified to operate from 1.6 V to 5.5 V. At 1.8 V, it maintains full functionality including accurate 130°C trip point, 5°C hysteresis, and valid VTEMP output with Gain 4 (–12.8 mV/°C). Quiescent current remains below 16 µA, making it ideal for low-voltage battery-powered systems.
What package type and thermal characteristics does LM26LVQISD-130/NOPB use?
LM26LVQISD-130/NOPB uses a 6-pin WSON package (NGF) measuring 2.2 mm × 2.5 mm with an exposed thermal pad. Its junction-to-board thermal resistance (RθJB) is 70°C/W when the thermal pad is soldered to a PCB ground plane, enabling effective heat dissipation in high-temperature automotive environments.
Is LM26LVQISD-130/NOPB qualified for automotive applications?
Yes, LM26LVQISD-130/NOPB is AEC-Q100 qualified (Grade 0: –40°C to +150°C ambient), with HBM ESD rating of ±4500 V and CDM rating of ±1000 V. It is manufactured on an automotive-grade flow and supports safety-critical thermal monitoring in engine control units, battery management systems, and power electronics modules.
LM26LVQISD-130/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Trip Temperature Threshold:
- Hot
- Switching Temperature:
- 130°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
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 6-WSON (2.2x2.5)
LM26LVQISD-130/NOPB FAQ
1.How can I place an order for LM26LVQISD-130/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM26LVQISD-130/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 LM26LVQISD-130/NOPB reliable?
The price and inventory of LM26LVQISD-130/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM26LVQISD-130/NOPB is usually 5 days.
3.What payment methods are accepted for LM26LVQISD-130/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM26LVQISD-130/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM26LVQISD-130/NOPB?
LM26LVQISD-130/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM26LVQISD-130/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 LM26LVQISD-130/NOPB?
For technical support, including LM26LVQISD-130/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM26LVQISD-130/NOPB requirements.
6.How does Aetrix verify that LM26LVQISD-130/NOPB is sourced from the original manufacturer or authorized distributors?
All LM26LVQISD-130/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 LM26LVQISD-130/NOPB meets industry standards.
7.What is the process for return or replacement of LM26LVQISD-130/NOPB?
All LM26LVQISD-130/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM26LVQISD-130/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 LM26LVQISD-130/NOPB part is unused and in its original packaging.
Return procedure for LM26LVQISD-130/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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