- The internal comparator pin is programmable for hysteresis of 2°C or 10°C
- No external components are required
- Open drain or push-pull digital output; CMOS logic level is supported
- Output temperature sensor internal temperature with V pin
- V temperature output allows for post-assembly system testing
- Internal voltage reference and DAC trip point setting
- Currently, it is available in a 5-pin SOT-23 plastic package
- Excellent power supply noise suppression
- UL Recognized Components
illustrate
The LM26 is a high-precision single-digital, low-power thermostat consisting of an internal reference, digital-to-analog converter, temperature sensor and comparison. With factory programming, it can manufacture different trigger points as well as different digital output functions. This access point (tOS) can be preset in any plant in the -55°C temperature range in 1°C increments to +110°C. The LM26 has a digital output (OS/^OS/US/^US), 1 digital input (HYST) and an analog output (V temperature). The digital output stage can be preset to either open drain or push-pull. In addition, it can be programmed as a high or low plant. The digital output can be programmed to represent an over-temperature shutdown event (OS or ^OS) or a plant shutdown event (US or ^US) based on temperature. When the preset is set to overheat shutdown (^OS) will become low, indicating that the mold temperature OS is internally preset T and go to meet high temperature, high below (T OS - T HYST). Similarly, when the shutdown pre-programmed as undertemperature (US) does not get higher, indicating that the temperature in the US is lower than T and lower, the temperature is higher than (t US + T HYST). A typical hysteresis, the T HYST, can be set to 2°C or 10°C and pin control the HYST state. AV Temperature provides a temperature proportional to the analog output voltage and a -10.82mV/°C output slope.
Detailed ordering information is available in the available parts. As for options in other sections, learn about minimum order eligibility for information on national semiconductor distributors or sales representatives. The LM26 is currently available in a 5-pin SOT-23 package.
Key norms
■ Supply voltage
|
2.7V to 5.5V
|
■ Supply current
|
40μA (max) 20μA (typical)
|
■ Lag temperature
|
|