Overview
The LM75BD,112, produced by NXP USA Inc., is a digital temperature sensor and thermal watchdog. It utilizes an on-chip band gap temperature sensor and Sigma-Delta A-to-D conversion technique to provide accurate temperature measurements. This device is designed to monitor ambient temperature and can be configured for various operation modes, including stand-alone operation as a thermostat. It features an I2C-bus interface, allowing up to eight devices to be connected on the same bus without address conflicts.
Key Specifications
| Parameter | Specification |
|---|---|
| Temperature Range | -55°C to +125°C |
| Temperature Resolution | 0.125°C |
| Temperature Accuracy | ±2°C from -25°C to +100°C, ±3°C from -55°C to +125°C |
| Power Supply Range | 2.8 V to 5.5 V |
| Supply Current in Shutdown Mode | 1.0 μA |
| I2C-Bus Frequency Range | 20 Hz to 400 kHz |
| Package Types | SO8, TSSOP8, 3 mm × 2 mm XSON8U, 2 mm × 3 mm HWSON8 |
| ESD Protection | Exceeds 4500 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101 |
| Latch-up Testing | Exceeds 100 mA per JEDEC Standard JESD78 |
Key Features
- Pin-for-pin replacement for industry standard LM75 and LM75A with improved temperature resolution.
- I2C-bus interface supporting up to 8 devices on the same bus.
- Programmable temperature threshold and hysteresis set points.
- Stand-alone operation as a thermostat at power-up.
- Open-drain output (OS) for overtemperature detection.
- Three selectable logic address pins for multiple device connection.
- Low power consumption with 1.0 μA supply current in shutdown mode.
Applications
- System thermal management.
- Personal computers.
- Electronics equipment.
- Industrial controllers.
Q & A
- What is the temperature range of the LM75BD,112? The temperature range is from -55°C to +125°C.
- What is the temperature resolution of the LM75BD,112? The temperature resolution is 0.125°C.
- What is the power supply range for the LM75BD,112? The power supply range is from 2.8 V to 5.5 V.
- How many devices can be connected on the same I2C-bus? Up to eight devices can be connected on the same I2C-bus.
- What is the supply current in shutdown mode? The supply current in shutdown mode is 1.0 μA.
- Does the LM75BD,112 have ESD protection? Yes, it exceeds 4500 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101.
- Can the LM75BD,112 be used as a stand-alone thermostat? Yes, it can be configured for stand-alone operation as a thermostat at power-up.
- What types of packages are available for the LM75BD,112? The available package types include SO8, TSSOP8, 3 mm × 2 mm XSON8U, and 2 mm × 3 mm HWSON8.
- What is the frequency range of the I2C-bus interface? The frequency range is from 20 Hz to 400 kHz.
- Is the LM75BD,112 compatible with other LM75 models? Yes, it is a pin-for-pin replacement for industry standard LM75 and LM75A models.
