NXP LM75BDP,118 Digital Temp Sensor with I²C Thermal Watchdog (TSSOP‑8)

The NXP LM75BDP118 is a compact and efficient digital temperature-to-I²C converter, packaged in an 8-pin TSSOP SMT form. It combines a precision on-chip bandgap sensor with a Sigma-Delta ADC, delivering an 11-bit resolution (0.125°C per step) across a broad temperature range of –55°C to +125 °C

Technical Specifications of the Product

• Supply Voltage: 2.8 V to 5.5 V
• Accuracy: ±2 °C (–25 °C to +100 °C); ±3 °C (–55 °C to +125 °C)
• Interface: Standard I²C/SMBus with selectable addresses (up to 8 devices on one bus)
• Output: Open‑drain OS alert with programmable comparator or interrupt behavior; default thresholds (Tₒₛ = 80 °C, Tₕᵧₛₜ = 75 °C)
• Power Efficiency: Shutdown mode draws ~1 µA, making it ideal for low‑power systems
• ESD & Reliability: Solid protection, JEDEC‑compliant, suitable for rugged environments

Use Cases and Advantages

• System Thermal Control: Great for industrial controllers, data communications, HVAC, and thermal management in electronics equipment.
• Compact Monitoring: Small TSSOP-8 package fits densely populated PCBs.
• Flexible I²C Deployment: Supports up to 8 sensors on a single bus via configurable address pins.
• Safety & Control: The thermostat-like OS alert allows direct hardware-based over-temperature protection.
• Low-Power & Robust: Efficient shutdown mode and durable design make it suited for both mobile and industrial applications.