Overview
The LM75BGD,125 is a digital temperature sensor and thermal watchdog produced by NXP USA Inc. This device utilizes an on-chip band gap temperature sensor and Sigma-Delta A-to-D conversion technique to provide accurate temperature measurements. It is designed to operate in a wide temperature range and offers various features that make it suitable for a variety of applications.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | LM75BGD,125 |
| Package | XSON8U (3 mm x 2 mm) |
| Number of Pins | 8 |
| Min Supply Voltage | 2.8 V |
| Max Supply Voltage | 5.5 V |
| Interface | 2-Wire, I2C, SMBus, Serial |
| Min Operating Temperature | -55°C |
| Max Operating Temperature | 125°C |
| Nominal Supply Current | 100 µA |
| Number of Bits | 11 |
| Temperature Resolution | 0.125 °C |
| Temperature Accuracy | ±2 °C from -25 °C to +100 °C, ±3 °C from -55 °C to +125 °C |
| RoHS Compliance | Yes |
Key Features
- High temperature resolution of 0.125 °C
- Programmable temperature threshold and hysteresis set points
- Low supply current of 1.0 µA in shutdown mode for power conservation
- Stand-alone operation as a thermostat at power-up
- ESD protection exceeds 4500 V HBM and 1000 V CDM
- Latch-up testing exceeds 100 mA per JEDEC Standard JESD78
- Open-drain output (OS) for overtemperature detection
- Three selectable logic address pins for up to 8 devices on the same bus
- Configurable operation modes: normal mode and shutdown mode
Applications
- System thermal management
- Personal computers
- Electronics equipment
- Industrial controllers
Q & A
- What is the operating temperature range of the LM75BGD,125?
The LM75BGD,125 operates in a temperature range from -55°C to 125°C.
- What is the supply voltage range for the LM75BGD,125?
The supply voltage range is from 2.8 V to 5.5 V.
- What is the resolution of the temperature measurements provided by the LM75BGD,125?
The temperature resolution is 0.125 °C.
- Does the LM75BGD,125 support multiple devices on the same bus?
Yes, it supports up to 8 devices on the same bus using three selectable logic address pins.
- What is the typical supply current in normal operation mode?
The nominal supply current is 100 µA.
- Can the LM75BGD,125 be configured for different operation modes?
Yes, it can be set in normal mode or shutdown mode to minimize power consumption.
- What is the ESD protection level of the LM75BGD,125?
The ESD protection exceeds 4500 V HBM and 1000 V CDM.
- Is the LM75BGD,125 RoHS compliant?
Yes, it is RoHS compliant.
- What type of interface does the LM75BGD,125 use?
The device uses a 2-Wire, I2C, SMBus, Serial interface.
- How accurate is the temperature measurement of the LM75BGD,125?
The temperature accuracy is ±2 °C from -25 °C to +100 °C and ±3 °C from -55 °C to +125 °C.
