Microchip Technology MCP9800DM-DL2 Scheda Tecnica

 2010 Microchip Technology Inc.

DS21909D-page 1

• 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: I

2

C™/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

• Personal Computers and Servers
• Hard Disk Drives and Other PC Peripherals
• Entertainment Systems
• Office Equipment
• Data Communication Equipment
• Mobile Phones
• General Purpose Temperature Monitoring

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. They
provide an accuracy of ±1°C (maximum) from -10°C to
+85°C.
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. The user has the option of setting the
alert output signal polarity as an active-low or
active-high comparator output for thermostat operation,
or as temperature event interrupt output for
microprocessor-based systems.
This sensor has an industry standard 2-wire, I

2

C™/

SMBus compatible serial interface, allowing up to eight
devices to be controlled in a single serial bus. These
features make the MCP9800/1/2/3 ideal for
sophisticated multi-zone temperature-monitoring
applications.

V

DD

R

GND

V

DD

ALERT

SDA

SCLK

4

1

2
3

5

I

2

C™ Po

rt

I/O Port

R

PULL-UP

SDA

GND

ALERT

SCLK

GND

V

DD

ALERT

SDA

SCLK

4

1

2

3

5

SOT-23-5

1

2

3

4

8

7

6

5

SOIC, MSOP

A0

V

DD

A1
A2

MCP9802/03: Serial Bus time-out 35 ms (typ.)
MCP9800/01: No Serial Bus time-out