Overview
The Texas Instruments LM57BISDX-5/NOPB is a precision, dual-output temperature switch with an analog temperature sensor output. This component is designed for wide temperature industrial applications, offering a robust solution for temperature monitoring and control. The device features a wide operating temperature range of -50°C to 150°C and is packaged in an 8-pin WSON EP (Exposed Pad) package, which is RoHS compliant.
Key Specifications
| Parameter | Description |
|---|---|
| Package | 8-Pin WSON EP (Exposed Pad) |
| Operating Temperature Range | -50°C to 150°C |
| Trip Temperature Range | -40°C to +150°C |
| Analog Temperature Sensor Accuracy | ±0.8°C or ±1.3°C from -40°C to +150°C |
| Digital Output Types | Push-Pull and Open-Drain |
| Thermal Hysteresis | Built-in to prevent output oscillation |
| TRIP-TEST Pin Function | Allows in-system testing and latching of digital outputs |
| Power Consumption | Low power to minimize self-heating (under 0.02°C) |
| Compliance | RoHS compliant, ECCN: EAR99 |
Key Features
- Trip temperature set by external resistors with accuracy of ±1.7°C or ±2.3°C from -40°C to +150°C.
- Resistor tolerance contributes zero error.
- Push-pull and open-drain switch outputs.
- Very linear analog temperature sensor output (VTEMP) with programmable negative temperature coefficient (NTC).
- Short-circuit protected analog and digital outputs.
- Latching function for digital outputs.
- TRIP-TEST pin allows in-system testing.
- Low power consumption to minimize self-heating.
Applications
The LM57BISDX-5/NOPB is suitable for a variety of industrial applications that require precise temperature monitoring and control. These include:
- Industrial automation systems.
- Temperature control in HVAC systems.
- Automotive systems (refer to LM57-Q1 datasheet for automotive-grade specifications).
- Medical devices requiring temperature monitoring.
- Consumer electronics with temperature-sensitive components.
Q & A
- What is the operating temperature range of the LM57BISDX-5/NOPB? The operating temperature range is -50°C to 150°C.
- How is the trip temperature set for the LM57BISDX-5/NOPB? The trip temperature is set by external resistors with an accuracy of ±1.7°C or ±2.3°C from -40°C to +150°C.
- What types of digital outputs does the LM57BISDX-5/NOPB have? The device has push-pull and open-drain digital outputs.
- Is the LM57BISDX-5/NOPB RoHS compliant? Yes, the LM57BISDX-5/NOPB is RoHS compliant.
- What is the function of the TRIP-TEST pin? The TRIP-TEST pin allows for in-system testing and latching of digital outputs.
- How accurate is the analog temperature sensor output? The analog temperature sensor output (VTEMP) has an accuracy of ±0.8°C or ±1.3°C from -40°C to +150°C.
- What is the power consumption of the LM57BISDX-5/NOPB? The device has low power consumption to minimize self-heating (under 0.02°C).
- What is the package type of the LM57BISDX-5/NOPB? The device is packaged in an 8-pin WSON EP (Exposed Pad) package.
- Does the LM57BISDX-5/NOPB have built-in thermal hysteresis? Yes, the device has built-in thermal hysteresis to prevent output oscillation.
- What are some common applications of the LM57BISDX-5/NOPB? Common applications include industrial automation, HVAC systems, automotive systems, medical devices, and consumer electronics.
