MCP9801-M/SN Microchip

2 I C Port MCP9800/1/2/3 2-Wire High-Accuracy Temperature Sensor Features: Description: Temperature-to-Digital Converter Microchip Technology Inc.s MCP9800/1/2/3 family of digital temperature sensors converts temperatures Accuracy with 12-bit Resolution: between -55C and +125C to a digital word. They - 0.5C (typical) at +25C provide an accuracy of 1C (maximum) from -10C to - 1C (maximum) from -10C to +85C +85C. - 2C (maximum) from -10C to +125C The MCP9800/1/2/3 family comes with - 3C (maximum) from -55C to +125C user-programmable registers that provide flexibility for User-selectable Resolution: 9-12 bit temperature sensing applications. The register settings Operating Voltage Range: 2.7V to 5.5V allow user-selectable 9-bit to 12-bit temperature 2 measurement resolution, configuration of the 2-wire Interface: I C/SMBus Compatible power-saving Shutdown and One-shot (single Operating Current: 200 A (typical) conversion on command while in Shutdown) modes Shutdown Current: 1 A (maximum) and the specification of both temperature alert output Power-saving One-shot Temperature and hysteresis limits. When the temperature changes Measurement beyond the specified limits, the MCP9800/1/2/3 outputs Available Packages: SOT-23-5, MSOP-8, SOIC-8 an alert signal. The user has the option of setting the alert output signal polarity as an active-low or Typical Applications: active-high comparator output for thermostat operation, or as temperature event interrupt output for Personal Computers and Servers microprocessor-based systems. Hard Disk Drives and Other PC Peripherals 2 C/ This sensor has an industry standard 2-wire, I Entertainment Systems SMBus compatible serial interface, allowing up to eight Office Equipment devices to be controlled in a single serial bus. These Data Communication Equipment features make the MCP9800/1/2/3 ideal for sophisticated multi-zone temperature-monitoring Mobile Phones applications. General Purpose Temperature Monitoring Package Types Typical Application MCP9800 MCP9801 V DD MCP9802 MCP9803 PIC Microcontroller SOT-23-5 SOIC, MSOP MCP9800/02 R V V SDA SDA 1 8 DD 1 5 DD PIC16F737 V SCLK A0 GND 2 2 7 DD 1 5 SDA A1 ALERT SCLK 3 2 3 4 6 GND ALERT SCLK A2 GND ALERT 4 5 3 4 I/O Port R PULL-UP MCP9802/03: Serial Bus time-out 35 ms (typ.) MCP9800/01: No Serial Bus time-out 2010 Microchip Technology Inc. DS21909D-page 1MCP9800/1/2/3 NOTES: DS21909D-page 2 2010 Microchip Technology Inc.