Microchip Technology MCP9800
The MCP9800/1/2/3 family comes with user-programmable registers that provide flexibility for temperature sensing applications. The register settings allow user-selectable 9-bit to 12-bit temperature measurement resolution, configuration of the power-saving Shutdown and One-shot (single conversion on command while in Shutdown) modes and the specification of both temperature alert output and hysteresis limits. When the temperature changes beyond the specified limits, the MCP9800/1/2/3 outputs an alert signal.FEATURES
:● Temperature-to-Digital Converter
● Accuracy with 12-bit Resolution: - ±0.5°C (typical) at +25°C - ±1°C (maximum) from -10°C to +85°C - ±2°C (maximum) from -10°C to +125°C - ±3°C (maximum) from -55°C to +125°C
● User-selectable Resolution: 9-12 bit
● Operating Voltage Range: 2.7V to 5.5V
● 2-wire Interface: I2C™/SMBus Compatible
● Operating Current: 200 µA (typical)
● Shutdown Current: 1 µA (maximum)
● Power-saving One-shot Temperature Measurement
● Available Packages: SOT-23-5, MSOP-8, SOIC-8 Typical
APPLICATIONS
:● Personal Computers and Servers
● Hard Disk Drives and Other PC Peripherals
● Entertainment Systems
● Office Equipment
● Data Communication Equipment
● Mobile Phones
● General Purpose Temperature Monitoring Typical Application VDD MCP9800/02 R VDD 1 GND 2 ALERT 3 5 SDA 4 SCLK RPULL-UP I2C™ Port PIC® Microcontroller PIC16F737 I/O Port
DESCRIPTION
: Microchip Technology Inc.’s MCP9800/1/2/3 family of digital temperature sensors converts temperatures between -55°C and +125°C to a digital word.