MAX1619MEE Maxim Integrated Products, MAX1619MEE Datasheet
MAX1619MEE
Specifications of MAX1619MEE
Available stocks
Related parts for MAX1619MEE
MAX1619MEE Summary of contents
Page 1
... Standby Supply Current 70µA (max) Supply Current in Auto-Convert Mode +3V to +5.5V Supply Range Write-Once Protection Small 16-Pin QSOP Package PART MAX1619MEE 16 N.C. 15 STBY 14 SMBCLK 13 N.C. ...
Page 2
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V CC DXP, ADD_ to GND ....................................-0. DXN to GND ..........................................................-0.3V to +0.8V SMBCLK, SMBDATA, ALERT, OVERT, STBY to ...
Page 3
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface ELECTRICAL CHARACTERISTICS (continued +3.3V 0°C to +85°C, configuration byte = XCh, unless otherwise noted PARAMETER SMBus INTERFACE Logic Input High Voltage Logic Input ...
Page 4
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface ELECTRICAL CHARACTERISTICS (continued +3.3V -55°C to +125°C, configuration byte = XCh, unless otherwise noted.) (Note PARAMETER SMBus INTERFACE STBY, SMBCLK, SMBDATA Logic ...
Page 5
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface (T = +25°C, unless otherwise noted.) A TEMPERATURE ERROR vs. COMMON-MODE NOISE FREQUENCY SQUARE WAVE IN AC-COUPLED TO DXN 100mVp ...
Page 6
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface PIN NAME Supply Voltage Input 5.5V. Bypass to GND with a 0.1µF capacitor. A 200Ω series resistor is recom mended but not required for ...
Page 7
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface Figure 1. Functional Diagram _______________________________________________________________________________________ 7 ...
Page 8
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface A/D Conversion Sequence If a Start command is written (or generated automatical the free-running auto-convert mode), both channels are converted, and the results of both measurements are ...
Page 9
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface 1) Place the MAX1619 as close as practical to the remote diode noisy environment, such as a computer motherboard, this distance can be 4 inch ...
Page 10
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface the MAX1619 can be forced to perform A/D conversions via the one-shot command, despite the RUN/STOP bit being high. Activate hardware standby mode by forcing the STBY pin low. ...
Page 11
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface tems, since a second master could overwrite the com- mand byte without informing the first master. The temperature data format is 7 bits plus sign in two’s complement form ...
Page 12
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface If the remote channel is shorted (DXP to DXN or DXP to GND), the ADC reads 0000 0000 so as not to trip either the alarms ...
Page 13
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface Table 4. Command-Byte Bit Assignments REGISTER COMMAND RLTS 00h RRTE 01h RSL 02h RCL 03h RCRA 04h RRTM 10h RRTH 11h RRHI 07h RRLS 08h WCA 09h WCRW 0Ah ...
Page 14
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface Table 6. Status-Byte Bit Assignments BIT NAME FUNCTION 7 A high indicates that the ADC is busy BUSY converting. (MSB) 6 RFU Reserved for future use. 5 RFU Reserved ...
Page 15
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface Table 8. RLTS and RRTE Temperature Register Update Timing Chart OPERATING MODE CONVERSION INITIATED BY: Autoconvert Power-on reset One-shot command, while idling Autoconvert between automatic conversions One-shot command that ...
Page 16
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface HIGH LOW SMBCLK SMBDATA SU:STA HD:STA A = START CONDITION B = MSB OF ADDRESS CLOCKED INTO SLAVE C = LSB OF ...
Page 17
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface Listing 1. Pseudocode Example ______________________________________________________________________________________ 17 ...
Page 18
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface Listing 1. Pseudocode Example (continued) 18 ______________________________________________________________________________________ ...
Page 19
Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface Listing 1. Pseudocode Example (continued) Programming Example: Clock-Throttling Control for CPUs Listing 1 gives an untested example of pseudocode for proportional temperature control of Intel mobile CPUs through a ...
Page 20
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...