Key facts
- Model
- SOT-23
- Industry
- Industrial
- Documents
- 13
- Languages
- EN
- Last added
- 2012-07-04
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NATIONAL SEMICONDUCTOR -LM26 SOT-23 ±3°C Accurate Factory Preset Thermostat handbook
The LM26 is a precision, single digital‑output thermostat in a 5‑lead SOT‑23 package. It integrates an internal reference, DAC, temperature sensor and comparator, and can be factory‑programmed for a trip point between –55 °C and +110 °C with ±3 °C accuracy. The device offers configurable hysteresis (2 °C or 10 °C) and selectable open‑drain or push‑pull digital outputs.
The handbook includes functional descriptions, pin assignments, absolute maximum and operating ratings, ordering tables, typical application circuits such as fan control and thermal protection, and guidelines for after‑assembly testing using the Vyeyp analog output. Physical dimensions, land‑pattern recommendations, and noise‑rejection test results are also provided.
National Semiconductor SOT-23 specifications
| Conversion Rate | 1 MSPS |
|---|---|
| Supply Voltage Range | +2.7V to +5.25V |
| Power Consumption (Normal Mode, +3V Supply) | 2 mW (typ) |
All National Semiconductor SOT-23 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- National Semiconductor ADC121S101/ADC101S101/ADC081S101 1MSPS 12-/10-/8-Bit A/D Converters in SOT-23 LLP handbook 23 p
- national semiconductor LM45B/LM45C SOT-23 Precision Centigrade Temperature Sensors handbook 9 p
- NATIONAL SEMICONDUCTOR LP2982 Micropower 50 mA Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Manual 17 p
- National Semiconductor LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Designed for Use with Very Low ESR Output Capacitors datasheet 21 p
- National Semiconductor LM27313 1.6 MHz Boost Converter with 30 V Internal FET Switch SOT‑23 Datasheet 12 p
- National Semiconductor LM26 SOT-23 ±3 C Accurate Factory Preset Thermostat handbook
- National Semiconductor LP2983 Micropower 150 mA Voltage Regulator in SOT-23 Package For Output Voltages ≤ 1.2V handbook 11 p
- NATIONAL SEMICONDUCTOR LM4030 SOT-23 Ultra-High Precision Shunt Voltage Reference Manual 14 p
- National Semiconductor LM45 SOT-23 Precision Centigrade Temperature Sensors Handbook 9 p
- NATIONAL SEMICONDUCTOR - LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Designed for Use with Very Low ESR Output Capacitors handbook 22 p
- NATIONAL SEMICONDUCTOR - October 23 2008 LM4128/LM4128Q SOT-23 Precision Micropower Series Voltage Reference General Description Manual 18 p
- NATIONAL SEMICONDUCTOR LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Designed for Use with Very Low ESR Output Capacitors handbook 22 p
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the conversion rate of these converters?
The devices operate at a conversion rate of 1 MSPS.
Are these converters compatible with SPI interfaces?
Yes, the serial interface is compatible with SPI, QSPI, MICROWIRE, and many common DSP serial interfaces.
What is the guaranteed accuracy of the LM45 series?
The device provides an accuracy of +2°C at room temperature and +3°C over a full -20 to +100°C range.
From: national semiconductor LM45B/LM45C SOT-23 Precision Centigrade Temperature Sensors handbook
Does the LM45 require external calibration?
No, it does not require any external calibration or trimming to provide its specified accuracies.
From: national semiconductor LM45B/LM45C SOT-23 Precision Centigrade Temperature Sensors handbook
What is the typical dropout voltage of the LP2982?
The typical dropout voltage is 180 mV at an 80 mA load.
What is the operating input voltage range for the LP2982?
The regulator operates from 2.1 V up to 16 V.