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National Semiconductor
Texas Instruments Incorporated (TI), a worldwide purveyor of semiconductor schematics and fabrications, specializes in the conception of analog integrated circuits (ICs) and intrinsic processors. Mobilizing the preeminent intellectual luminaries across the globe, TI engineers revolutions that sculpt the destiny of technology. Enabling over 100,000 patrons to transmute tomorrow's promise into today's reality, TI stands as a vanguard of transformative innovation.
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The LM2661MX is a precision, single digital-output, low-power thermostat comprised of an internal reference, DAC, temperature sensor and comparator. Utilizing factory programming, it can be manufactured with different trip points as well as different digital output functionality. The trip point (TOS) can be preset at the factory to any temperature in the range of 55°C to 110°C in 1°C increments. The LM2661MX has one digital output (OS/OS/US/US), one digital input (HYST) and one analog output (VTEMP). The digital output stage can be preset as either open-drain or push-pull. In addition, it can be factory programmed to be active HIGH or LOW. The digital output can be factory programmed to indicate an over temperature shutdown event (OS or OS) or an under temperature shutdown event (US or US). When preset as an overtemperature shutdown (OS) it will go LOW to indicate that the die temperature is over the internally preset TOS and go HIGH when the temperature goes below (TOS–THYST). Similarly, when preprogrammed as an undertemperature shutdown (US) it will go HIGH to indicate that the temperature is below TUS and go LOW when the temperature is above (TUS+THYST). The typical hysteresis, THYST, can be set to 2°C or 10°C and is controlled by the state of the HYST pin. A VTEMP analog output provides a voltage that is proportional to temperature and has a 10.82 mV/°C output slope.
Available parts are detailed in the Device Comparison Table. For other part options, contact a Texas Instruments Distributor or Sales Representative for information on minimum order qualification. The LM2661MX is currently available in a 5-lead SOT-23 package.
Feature
- Internal Comparator With Pin Programmable 2°C or 10°C Hysteresis
- No External Components Required
- Open-Drain or Push-Pull Digital Output; Supports CMOS Logic Levels
- Internal Temperature Sensor With VTEMP Output Pin
- VTEMP Output Allows After-Assembly System Testing
- Internal Voltage Reference and DAC for Trip-Point Setting
- Currently Available in 5-pin SOT-23 Plastic Package
- Excellent Power Supply Noise Rejection
- UL Recognized Component
- Key Specifications
- Power Supply Voltage 2.7 V to 5.5 V
- Power Supply Current 40 μA (Maximum) 16 μA (Typical)
- Hysteresis Temperature 2°C or 10°C (Typical)
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Product Attributes
| TYPE | DESCRIPTION | Select all |
|---|---|---|
| Voltage - Output (Min/Fixed) | -Vin, 2Vin, Vin/2 | |
| Series | LM2661 | |
| Package | Bulk | |
| Current - Output | 100mA | |
| Product Status | Active | |
| Frequency - Switching | 5kHz, 40kHz | |
| Function | Ratiometric | |
| Synchronous Rectifier | No | |
| Output Configuration | Positive or Negative | |
| Operating Temperature | -40°C ~ 85°C (TA) | |
| Topology | Charge Pump | |
| Mounting Type | Surface Mount | |
| Output Type | Fixed | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | |
| Number of Outputs | 1 | |
| Supplier Device Package | 8-SOIC | |
| Voltage - Input (Min) | 1.5V | |
| Voltage - Input (Max) | 5.5V |
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$0.48
Price update：a months ago
Available in stock：
588
National Semiconductor
Texas Instruments Incorporated (TI), a worldwide purveyor of semiconductor schematics and fabrications, specializes in the conception of analog integrated circuits (ICs) and intrinsic processors. Mobilizing the preeminent intellectual luminaries across the globe, TI engineers revolutions that sculpt the destiny of technology. Enabling over 100,000 patrons to transmute tomorrow's promise into today's reality, TI stands as a vanguard of transformative innovation.
View All Product from National SemiconductorBlog
- Unveiling the Future: The Surge of Microcontrollers in 2024In the dynamic world of electronic components, microcontrollers stand out as a testament to innovation and versatility. As we edge closer to 2024, the landscape for microcontrollers and semiconductors, spearheaded by giants like STMicroelectronics, Texas Instruments, and Microchip, is set for remarkable transformation.
- Microcontrollers vs. Microprocessors: Unveiling the Core Differences for Embedded Systems EngineeringSeasoned professionals in the realm of embedded systems engineering and product development within the electronics sphere often grapple with distinguishing between microcontrollers and microprocessors. Despite their foundational role in the design and fabrication of a myriad of electronic gadgets, understanding their unique functionalities based on mere definitions can be challenging:
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