MCP9800A0-M/MS MICROCHIP [Microchip Technology], MCP9800A0-M/MS Datasheet

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High-Accuracy Temperature Sensor 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 • ...

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MCP9800/1/2/3 NOTES: DS21909C-page 2  2010 Microchip Technology Inc. ...

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ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † V ....................................................................... 6.0V DD Voltage at all Input/Output pins .....GND – 0.3V to 5.5V Storage temperature .......................... -65°C to +150°C Ambient temp. with power applied ..... -55°C to +125°C Junction Temperature (T ) ...

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MCP9800/1/2/3 DIGITAL INPUT/OUTPUT PIN CHARACTERISTICS Electrical Specifications: Unless otherwise indicated -55°C to +125°C. A Parameters Sym Serial Input/Output (SCLK, SDA, A0, A1, A2) Input High-level Voltage V IH Low-level Voltage V IL Input Current I IN Output ...

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SERIAL INTERFACE TIMING SPECIFICATIONS Electrical Specifications: Unless otherwise indicated pF, and all limits measured to 50% point. L Parameters Sym 2 2-Wire I C™/SMBus Compatible Interface Serial Port Frequency f f Clock Period t Low Clock ...

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MCP9800/1/2/3 NOTES: DS21909C-page 6  2010 Microchip Technology Inc. ...

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TYPICAL PERFORMANCE CURVES The graphs and tables provided following this note are a statistical summary based on a limited number of Note: samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or ...

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MCP9800/1/2/3 Note: Unless otherwise noted 2.7V to 5.5V 0. -55 -35 - (°C) A FIGURE 2-7: ALERT and ...

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PIN DESCRIPTION The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE MCP9800 MCP9801 MCP9802 MCP9803 SOT-23-5 MSOP, SOIC — 5 — 6 — 3.1 ...

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MCP9800/1/2/3 NOTES: DS21909C-page 10  2010 Microchip Technology Inc. ...

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SERIAL COMMUNICATION 4.1 2-Wire SMBus/Standard Mode 2 I C™ Protocol-Compatible Interface The MCP9800/1/2/3 serial clock input (SCL) and the bidirectional serial data line (SDA) form a 2-wire bidirectional SMBus/Standard mode I communication port (refer to the Digital Input/Output and ...

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MCP9800/1/2/3 Address Byte SCL SDA 1 0 Start Address Slave R/W Code Address PIC18FXXXX Response FIGURE 4-1: Device Addressing. 4.1.5 DATA VALID After the Start condition, each ...

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FUNCTIONAL DESCRIPTION The MCP9800/1/2/3 temperature sensor consists of a band-gap type temperature sensor, a  Analog-to- Digital Converter (ADC), user-programmable registers 2 and a 2-wire I C protocol-compatible serial interface. Resolution One-Shot Shutdown Fault Queue Alert Polarity Alert Comp/Int ...

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MCP9800/1/2/3 5.3 Registers The MCP9800/1/2/3 has four registers that are user-accessible. These registers are specified as the Ambient Temperature (T ) register, the Temperature A Limit-set (T ) register, the Temperature Hysteresis SET (T ) register and device Configuration (CONFIG) ...

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TABLE 5-1: BIT ASSIGNMENT SUMMARY FOR ALL REGISTERS Register MSB/ Pointer LSB Ambient Temperature Register ( MSB Sign 2 ° LSB 2 °C 2 °C Sensor Configuration Register (CONFIG) ...

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MCP9800/1/2/3 5.3.1 AMBIENT TEMPERATURE REGISTER ( The MCP9800/1/2/3 has a 16-bit read-only Ambient Temperature register that contains 9-bit to 12-bit temperature data. (0.5°C to 0.0625°C resolutions, respectively). This data is formatted complement. The bit assignments, as well as ...

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SCL SDA Address Byte PIC18FXXX SCL A A SDA ...

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MCP9800/1/2/3 5.3.2 SENSOR CONFIGURATION REGISTER (CONFIG) The MCP9800/1/2/3 has an 8-bit Configuration register that allows the user to select the different features. These features include shutdown, ALERT output select as comparator or interrupt output, ALERT output polarity, fault queue cycle, ...

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Writing to the CONFIG Register to change the resolution to 0.0625°C <0110 0000> SCL A SDA Address Byte • Reading the CONFIG Register ...

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MCP9800/1/2/3 5.3.3 TEMPERATURE HYSTERESIS REGISTER (T ) HYST The MCP9800/1/2/3 has a 16-bit Temperature Hysteresis register that contains a 9-bit data in two’s compliment format. This register is used to set a hysteresis for the T limit. Therefore, the data ...

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Writing to the T Register to set the temperature hysteresis to 95°C HYST SCL A SDA Address Byte • Reading the T Register. HYST ...

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MCP9800/1/2/3 5.3.4 TEMPERATURE LIMIT-SET REGISTER (T ) SET The MCP9800/1/2/3 has a 16-bit Temperature Limit-Set register (T ) which contains a SET 9-bit data in two’s compliment format. This data represents a maximum temperature limit. If the ambient temperature exceeds ...

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Writing to the T Register to set the temperature limit to 90°C, SET SCL A SDA Address Byte • Reading the T Register. SET ...

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MCP9800/1/2/3 5.3.4.1 Shutdown Mode The Shutdown mode disables all power-consuming activities (including temperature sampling operations) while leaving the serial interface active. The device consumes 2 µA (maximum) in this mode. It remains in this mode until the Configuration register is ...

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Fault Queue The fault queue feature can be used as a filter to lessen the probability of spurious activation of the ALERT pin. T must remain above T for the consecutive A SET number of conversion cycles selected using ...

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MCP9800/1/2/3 NOTES: DS21909C-page 26  2010 Microchip Technology Inc. ...

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APPLICATIONS INFORMATION 6.1 Connecting to the Serial Bus The SDA and SCL serial interface are open-drain pins that require pull-up resistors. This configuration is shown in Figure 6- MCP9800/1/2 SDA ® PIC SCL MCU FIGURE ...

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MCP9800/1/2/3 NOTES: DS21909C-page 28  2010 Microchip Technology Inc. ...

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... In the event the full Microchip part number cannot be marked on one line, it will Note: be carried over to the next line, thus limiting the number of available characters for customer-specific information.  2010 Microchip Technology Inc. Example: Part Number MCP9800 MCP9800A0T-M/OT LDNN MCP9800A5T-M/OT LJNN MCP9800/1/2/3 Part Number MCP9802 MCP9802A0T-M/OT ...

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MCP9800/1/2/3 /HDG 3ODVWLF 6PDOO 2XWOLQH 7UDQVLVWRU 27 >627@ 1RWH 1RWHV DS21909C-page φ  2010 Microchip Technology Inc. ...

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Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. MCP9800/1/2/3 DS21909C-page 31 ...

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MCP9800/1/2/3 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 06 >0623@ 1RWH NOTE 1RWHV DS21909C-page φ L  2010 Microchip Technology Inc. ...

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Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. MCP9800/1/2/3 DS21909C-page 33 ...

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MCP9800/1/2/3 Note: DS21909C-page 34  2010 Microchip Technology Inc. ...

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Note:  2010 Microchip Technology Inc. MCP9800/1/2/3 DS21909C-page 35 ...

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MCP9800/1/2/3 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ  PP %RG\ >62,&@ 1RWH DS21909C-page 36  2010 Microchip Technology Inc. ...

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APPENDIX A: REVISION HISTORY Revision C (September 2010) The following is the list of modifications: 1. Updated Section 6.3 “Layout ations”. 2. Updated package markings drawings. 3. Removed lead free designation letter G from Section 7.0 “Packaging Information” from the ...

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MCP9800/1/2/3 NOTES: DS21906C-page 38  2010 Microchip Technology Inc. ...

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... Temperature Range -55  +125  C Package Plastic Small Outline Transistor (SOT-23), 5-lead MS = Plastic Micro Small Outline (MSOP), 8-lead SN = Plastic SOIC, (150 mil Body), 8-lead  2010 Microchip Technology Inc. Examples: –X /XX a) MCP9800A0T-M/OT Package b) MCP9800A5T-M/OT a) MCP9801-M/MS b) MCP9801T-M/MS c) MCP9801-M/SN d) MCP9801T-M/SN a) ...

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MCP9800/1/2/3 NOTES: DS21909C-page 40  2010 Microchip Technology Inc. ...

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Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

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