MCP9600 Datasheet, PDF (1/50 Pages) Microchip Technology – Four Programmable Temperature Alert Outputs

MCP9600
Thermocouple EMF to Temperature Converter,
±1.5 °C Maximum Accuracy
Features
• Thermocouple Electromotive Force (EMF) to °C
Converter
- Integrated Cold-Junction Compensation
• Supported Types (designated by NIST ITS-90):
- Type K, J, T, N, S, E, B and R
• ±1.5°C (Max.) Hot-Junction Accuracy
• Measurement Resolution:
- Hot- and Cold-Junctions: 0.0625°C (typical)
• Four Programmable Temperature Alert Outputs
- Monitor Hot- or Cold-Junction Temperatures
- Detect Rising or Falling Temperatures
- Up to 255°C of Programmable Hysteresis
• Programmable Digital Filter for Temperature
• Low Power:
- Shutdown Mode
- Burst Mode: 1 to 128 Temperature Samples
• 2-Wire Interface: I²C Compatible, 100 kHz
- Supports Eight Devices per I²C bus
• Operating Voltage Range: 2.7V to 5.5V
• Operating Current: 300 µA (typical)
• Shutdown Current: 2 µA (typical)
• Package: 20-lead MQFN
Typical Applications
• Petrochemical Thermal Management
• Hand-Held Measurement Equipment
• Industrial Equipment Thermal Management
• Ovens
• Industrial Engine Thermal Monitor
• Temperature Detection Racks
PIC^® MCU
V_DD
I²C
V_IN+ T_C+
MCP9600
4
T_C-
Alert
ADDR
V_IN-
GND
Types K, J, T,
N, E, B, S, R
Description
Microchip Technology Inc.’s MCP9600 converts
thermocouple EMF to degree Celsius with integrated
Cold-Junction compensation. This device corrects the
thermocouple nonlinear error characteristics of eight
thermocouple types and outputs ±1.5°C accurate
temperature data for the selected thermocouple. The
correction coefficients are derived from the National
Institute of Standards and Technology (NIST) ITS-90
Thermocouple Database.
The MCP9600 digital temperature sensor comes with
user-programmable registers which provide design
flexibility for various temperature sensing applications.
The registers allow user-selectable settings such as
Low-Power modes for battery-powered applications,
adjustable digital filter for fast transient temperatures
and four individually programmable temperature alert
outputs which can be used to detect multiple
temperature zones.
The temperature alert limits have multiple user
programmable configurations such as alert polarity as
either an active-low or active-high push-pull output, and
output function as comparator mode (useful for
thermostat-type operation) or interrupt mode for
microprocessor-based systems. In addition, the alerts
can detect either a rising or a falling temperature with
up to 255°C hysteresis.
This sensor uses an industry standard 2-Wire, I²C
compatible serial interface and supports up to eight
devices per bus by setting the device address using the
ADDR pin.
Package Type
MCP9600
5x5 MQFN*
20 19 18 17 16
GND 1
15 Alert 4
V_IN+ ₂
GND 3
V_IN- 4
GND ⁵
14 Alert 3
EP
21
13 GND
12 Alert 2
11 Alert 1
6 7 8 9 10
* Includes Exposed Thermal Pad (EP); see Table 3-1.
 2015-2016 Microchip Technology Inc.
DS20005426B-page 1