Design Guide. Controls RPM to ±1% (Using Optional Crystal) I 2 C-Compatible Interface 28-Pin TQFN Package. 13th Edition February 2008 MAX6620

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1 TEMP SENSORS Design Guide 13th Edition February 2008 Industry s First Linear, 4-Channel Fan Controller with RPM Control Provides Low-Noise, Fail-Safe Cooling and Independent Speed Control for Up to Four Fans +3.0V TO +5.5V FAN1 MAX7500 TEMP SENSOR MAX7500 TEMP SENSOR MAX7500 TEMP SENSOR µc FAN FAIL SDA SCL I 2 C INTERFACE, REGISTERS, CONTROL LOGIC MAX6620 DAC/LDO DRIVER, TACH MONITOR FAN2 FAN3 FAN4 SMALL, 28-PIN TQFN COMMUNICATIONS TEST EQUIPMENT HIGH-END CONSUMER NETWORKING Low-Noise Linear Drive for 2-Wire and 3-Wire Fans Fail-Safe: Fans Go to 100% if µc Hangs Controlled Fan-Speed Ramp Rate Ensures Low Perceived Noise Controls RPM to ±1% (Using Optional Crystal) I 2 C-Compatible Interface 28-Pin TQFN Package The Maxim logo is a registered trademark of Maxim Integrated Products, Inc Maxim Integrated Products, Inc. All rights reserved.

2 Low-Voltage Digital Thermometer Simplifies Distributed Temp Sensing Allows Up to 27 Bus Addresses on the Same I 2 C Bus Optional Timeout Prevents Lockup on 2-Wire Interfaces SDA V DD +1.7V TO +3.7V A0 A2 A1 HIGH FLOAT LOW Three-State Address Pins Allow Up to 27 Unique Bus Addresses BASE STATIONS SERVERS NETWORKING Pin/Software Compatible with the LM75 I 2 C/SMBus TM -Compatible Serial Interface User-Selectable 9- to 12-Bit Resolution ±2.0 C Accuracy +1.7V to +3.7V Supply Range Frees Space for Other I 2 C Components Thermostat Output with User-Defined Trip Points -55 C to +125 C Operating Range Prices Start at $0.75 Part Supply Voltage (V) No. of Addresses Optional Timeout Package DS75LX +1.7 to µSOP/µMAX, SO DS75LV +1.7 to µSOP/µMAX, SO DS to SOT23 DS to µSOP/µMAX, SO Tiny SOT23 Available for Space-Constrained Designs SMBus is a trademark of Intel Corporation. µmax is a registered trademark of Maxim Integrated Products, Inc up recommended resale. Prices provided are for design guidance and are FOB USA. International prices will differ due to local duties, taxes, and exchange rates. Not all packages are offered in 1k increments, and some may require minimum order quantities. 2

3 7-Channel Temp Sensor Monitors One Local and Six Remote Temps Ideal for Notebook PCs with 45nm CPUs NEW The MAX6693 provides six remote-sensing channels and measures its own temperature. With its remote channels, the MAX6693 can measure the temperatures of external high-power ICs equipped with thermal-sensing diodes, or it can use discrete transistors to monitor multiple hot spots. Channel 1 includes beta compensation, which allows it to accurately measure the temperature of small-geometry CPUs. Channel 1 Accurately Monitors 45nm CPUs CPU Measure One Local and Six Remote Temperatures with One Chip! DXP1 GND ASIC DXN1 DXP2 SMBCLK SMBDATA TO SMBus MASTER DXN2 ALERT ±1 C Accuracy HOT SPOT HOT SPOT DXP3 DXN3 DXP4 DXN4 MAX6693 V CC OVERT N.C. STBY +3.3V TO SYSTEM SHUTDOWN HOT SPOT DXP5 DXN5 DXN6 DXP6 FPGA Six Remote-Sensing Channels One Local Temp Sensor One Remote Channel Optimized for Low-Beta, 45nm Sense Transistors ±1 C Remote-Temperature Accuracy (+60 C to +100 C) ALERT and OVERT Outputs for Interrupts, Throttling, and Shutdown 4-Remote-Channel Version Also Available (MAX6694) Small, 5mm x 5mm, 28-Pin TQFN Package 3

4 SoC Sensor Digitizer with Integrated Temp Sensor NEW Operates from -40 C to +125 C for Automotive Applications R+dr R-dr AIN+ 8 R-dr R+dr BRIDGE SENSORS AIN- 8 MUX LOCAL TEMP SENSOR PGA 12-BIT ADC 12-BIT DAC ANALOG OUTPUT REMOTE DIODE FOR TEMP SENSING (OPTIONAL) 16-BIT RISC µc MAXQ7665 HARDWARE MULTIPLIER UART PROGRAM AND DATA FLASH CAN 2.0B MAX13020 LIN TRANSCEIVER MAX3050ASA CAN TRANSCEIVER 12-Bit SAR ADC, 142ksps to 500ksps Local-Die and Remote-Temperature Sensing Programmable-Gain Amplifier (G = 1, 2, 4, 8, 16, 32) 12-Bit DAC with Buffered, Analog Voltage Output Automotive-Grade Program and Data Flash Memory Simplest Fan Controller Eliminates Software Overhead Independently Adjusts Fan Speed to Keep Systems Cool and Quiet Optional Remote-Diode Input Senses Remote-Diode Location V CC +5V Monitors Fan s Tach Output to Detect Failure V FAN TACH OUTPUT V FAN +5V OR +12V CPU OVERTEMP REMOTE AND LOCAL TEMP SENSOR FAN-FAILURE DETECTOR PWM GENERATOR FAN FAIL V CC SET HIGH TEMP SET LOW TEMP MAX6643 SET OVERTEMP Pin-Strappable Fan Control No BIOS or Embedded Controller Needed EMBEDDED CONTROLLER BIOS 4

5 Industry s Highest Accuracy Temp Sensors We offer a wide variety of temperature devices with an accuracy of ±0.5 C (max) over wide temperature and voltage ranges. Several popular digital-communication interfaces, including analog output, support a wide range of applications. ERROR ( C) ±0.5 C ACCURACY OVER TEMPERATURE AND VOLTAGE MEAN REFERENCE TEMPERATURE ( C) BASE STATIONS TEMPERATURE RECORDERS NETWORK SWITCHES/ROUTERS ±0.5 C Accuracy over a Wide Temperature Range 1-Wire, 2-Wire, 3-Wire, and Analog Output Options -55 C to +125 C Operating Range +2.7V to +5.5V or +1.7V to +3.7V (DS620) Supply Range User-Selectable 9- to 12-Bit Resolution No External Components Required to Measure Temperature Thermostat/Alarm Functionality with User-Defined Nonvolatile Thresholds Stand-Alone Thermostat Capability (DS620, DS1631A, and DS1626) Multiple Packaging Options HIGHEST ACCURACY TEMPERATURE SENSORS Part Interface Accuracy ( C) Package DS18B20 1-Wire ±0.5 from -10 to TO-92, 8-µSOP/µMAX, 8-SO DS1631/DS1631A 2-wire ±0.5 from 0 to µSOP/µMAX, 8-SO DS wire ±0.5 from 0 to µSOP/µMAX, 8-SO DS620 2-wire ±0.5 from 0 to µSOP/µMAX, exposed pad DS600 Analog ±0.5 from -20 to µSOP/µMAX, exposed pad 1-Wire is a registered trademark of Maxim Integrated Products, Inc. 5

6 Industry s First Dual-Channel Platinum RTD-to-Analog Conditioner Offers ±5kV ESD Protection The MAX6603 is a small-footprint analog conditioner for interfacing resistive temperature devices (RTDs) to microcontrollers. It is targeted at next-generation automotive engine-control systems that utilize exhaust temperature monitoring for EURO-IV emissions compliance. V CC Amplifies Platinum RTD Signals for ADC Conversion ±5kV ESD Protection at Inputs Protects CPU from Short-to-Battery Faults Up to +18VDC Low RTD Excitation Current Minimizes Self-Heating Errors No Calibration Required RTD Diagnostics Checks ±5 C (max) High Accuracy from +350 C to +450 C +3.0V to +5.0V Supply-Voltage Range Small, 8-Pin SO Package Pt RTD PROBE Pt RTD PROBE CONNECTOR CONNECTOR RS1+ RS1- RS2+ RS2- ESD CLAMP ESD CLAMP ESD CLAMP ESD CLAMP V CC V CC R SRC R SRC I EXC I EXC MAX6603 AMP FAULT DETECT AMP FAULT DETECT OUT1 DG1 OUT2 DG2 GND Lowest Voltage SC70 Temp Sensor Extends Battery Life The MAX6613 is the lowest voltage, precision, analog-output temperature sensor in a tiny SC70 package. This device operates over a supply-voltage range of +1.8V to +5.5V with a typical current consumption of 7.5µA. The MAX6613 is particularly well suited for portable applications in which battery life and cost are crucial. +1.8V to +5.5V Supply-Voltage Range -55 C to +130 C Operating Temp Range Low, 7.5µA (typ) Supply-Current Consumption Pin-Compatible Replacement for LM20 Best Solution for Cost-Sensitive Applications Operates from +1.8V Supply 2.0 m m 5-SC70 x 2.1 m m 6

7 Multichannel ADCs with DACs, ±1 C Accurate Temp Sensor, and GPIOs Are Ideal for Control Loops Up to 16 Channels of ADCs, 8 Channels of DACs, and 12 GPIO Lines 48-TQFN SET-POINT ADC FEEDBACK ADC + P I D K p K i K D e edt de dt DAC 5m m x 5 m m PLANT DIGITAL PID CONTROL µc AIN1 AIN2 AIN16 MAX1258 MUX 12-BIT SAR ADC TEMP SENSOR GPIO REFERENCE SPI LOGIC, FIFO, ALU, CLOCK DAC1 DAC2 DAC8 OUT0 OUT1 OUT8 12-/10-Bit, 300ksps ADC 12-/10-Bit, 2.0µs Octal DAC ±1 C Accurate Temp Sensor Channel-Scan Mode and Data Averaging 25MHz SPI TM Interface Part Supply Voltage No. of ADC No. of Internal Resolution INL Price Package (V) Channels GPIOs Reference (V) (Bits) (LSB) ($) MAX1257/MAX to TQFN 14.49/9.90 MAX1258/MAX to TQFN 14.49/9.90 MAX to TQFN MAX to TQFN 9.40 MAX1221/MAX to TQFN 13.79/9.20 MAX1220/MAX to /10 ±1 36-TQFN 13.79/9.20 MAX1343/MAX to TQFN 10.74/7.18 MAX1342/MAX to TQFN 10.74/7.18 MAX1340/MAX to TQFN 10.49/7.03 MAX1348/MAX to TQFN 10.24/6.93 MAX1346/MAX to TQFN 9.99/6.83 SPI is a trademark of Motorola, Inc. Prices provided are for 1000 pc. resale and are for the lowest grade, commercial temperature parts (FOB USA). International prices will differ due to local duties, taxes, and exchange rates. Not all packages are offered in 1k increments, and some may require minimum order quantities. 7

8 High-Accuracy, DS75-/LM75-Compatible Temp Sensor NEW The DS7505 provides ±0.5 C accuracy over a wide 0 C to +70 C range. It has nonvolatile thermostat thresholds that allow customized trip points at power-up, enabling the device to operate as a stand-alone thermostat with no communication required from a microcontroller. Bus Timeout Prevents Lockup of I 2 C Bus +1.7V TO +3.7V Low-Voltage Operation Is Ideal for Low-Power and Battery-Operated Systems DATA µc CLK SDA SCL DS7505 V DD A 0 Measures Temp over a -55 C to +125 C Range THERMOSTAT O.S. A 1 µc Communication Optional if Operating as a Stand-Alone Thermostat GND A 2 Tiny Temp Sensors Use Only One µp Pin Simple, Direct Digital Interface with Period, Frequency, or Timed Outputs The MAX6575/MAX6576/MAX6577 temp sensors communicate temperature to a µp through a single control line. They are ±0.8 C accurate (±3 C, max) at room temperature, and operate from a +2.7V to +5.5V supply. Multidrop Capability (MAX6575L/H) ±0.8 C Accuracy (typ) User-Selectable Period/ Frequency Options Tiny, 6-SOT23 Package THREE FLEXIBLE OUTPUT FUNCTIONS FREQUENCY 3.0 ACCURACY vs. TEMPERATURE MAX6577 F α TEMP PERIOD 2.0 MAX6576 ACCURACY ( C) SOT23 µc T α TEMP TIMED #1 #8 MAX6575 MAX6575 t DELAY α TEMP TEMPERATURE ( C) 3m m x 3 m m 8

9 ±1 C Accurate Temperature Monitor for DDR Memory Modules Targeted at memory modules for portable and desktop computers, the MAX6604 precision temp sensor maximizes memory bus speeds over a wide operating range. Temperature data is available over the I 2 C-/ SMBus-compatible interface and can be read at any time. Eight selectable bus addresses allow flexibility and permit multiple DIMMs to be used on the same motherboard. Tiny TDFN and TSSOP packages save board space. +2.7V TO +3.6V 8-TDFN A 0 A 1 MAX6604 TEMP SENSOR EVENT SCL 2m m x 3 m m I 2 C A 2 SDA GND 2GB 1GB 512MB ±1 C Accurate Temperature Monitor Overtemperature Interrupt with Programmable Threshold SMBus-/I 2 C-Compatible Interface +2.7V to +5.5V Operation JEDEC-Compliant Sensor for SODIMM Modules 300µA Supply Current Eight Selectable Addresses Tiny, 2mm x 3mm, TDFN and 8-Pin TSSOP Packages -20 C to +125 C Operating Temperature Range 9

10 Temperature Sensors For a More Detailed Product Listing, Go to: Temp Part Description Package Range EV Kit Features Price ($) ANALOG TEMPERATURE SENSORS DS600 ±0.5 C accurate, analog temp sensor 8-µSOP A ±0.5 C accuracy from -20 C to +100 C, thermostat output with 1.80 user-programmable trip point MAX6607/MAX6608 Temp sensors with integrated voltage reference 5-SC70/SOT23 M +10.0mV/ C output temp sensors with 15µA (max) supply current 0.59 MAX6610/MAX6611 Analog temp sensors with integrated voltage reference 6-SOT23 A Temp output and voltage reference scaled for ADC bit weights 0.80 MAX6613 Low-power, precision, analog-output temp sensor 5-SC70 M +1.8V operating voltage WIRE/SMBus-COMPATIBLE DIGITAL TEMPERATURE SENSORS DS75/DS75LV 2-wire/SMBus digital thermometers and thermostat 8-µMAX/SO, M ±2 C accuracy over -25 C to +100 C range, 9- to 12-bit resolution, 0.90 flip chip thermostat output, functionally compatible with LM75, +1.7V to +3.5V supply-voltage range (DS75LV) DS620 Low-voltage, 2-wire/SMBus digital thermometer 8-µSOP M ±0.5 C accuracy from 0 C to +70 C, +1.7V to +3.5V supply-voltage range, 1.66 and thermostat thermostat has EEPROM trip points DS wire/SMBus digital thermometer plus 256B EEPROM 8-SO/PDIP M ±0.5 C accuracy over 0 C to +70 C range, 256 bytes of user-accessible 3.75 EEPROM DS wire/SMBus digital thermometer plus real-time 8-SO M ±2 C accuracy over -10 C to +85 C range, 9-bit (expandable) resolution, 3.22 clock/calendar real-time clock/calendar has year compensation through the year 2100 DS1631/DS1631A 2-wire/SMBus digital thermometers and thermostat 8-µSOP/SO M ±0.5 C accuracy over 0 C to +70 C range, user-selectable 9- to 12-bit 1.66 resolution, thermostat has EEPROM trip points DS wire/SMBus digital thermometer and thermostat 8-µSOP/SO M ±1 C accuracy over -10 C to +85 C range, 9- to 12-bit resolution, 1.61 thermostat output with user-programmable trip points DS wire/SMBus digital thermometer and thermostat 8-µSOP M ±1 C accuracy from -10 C to +85 C, 9- to 12-bit resolution, thermostat has 1.61 EEPROM trip points DS wire/SMBus digital thermometer and thermostat 5-SOT23 M ±2 C accuracy over -10 C to +85 C range, thermostat output with 0.88 user-programmable trip points MAX channel temp sensor with SMBus interface 16-QSOP M Four external temp monitors, one internal temp monitor 4.00 MAX1669 Remote temp sensor with fan control 16-QSOP M Fan speed adjusted through serial interface with PWM, linear or PPL fan control 3.20 MAX6604 Precision temp monitor for DDR memory modules 8-TSSOP/TDFN A ±1 C accuracy from -20 C to +125 C, overtemperature interrupt with 0.95 programmable threshold, JEDEC compliant MAX channel fan controller with RPM control 16-TSSOP A Low-noise, fail-safe cooling with independent speed control for up to four fans MAX6625/MAX wire serial interface, digital temp sensors 6-SOT23 M Integrated temp sensors, 9-/12-bit ADC, digital overtemperature detector 0.90/0.99 with SMBus/2-wire serial interface MAX6633/34/35 SMBus temp sensors 8-SO M ±1 C accurate temp sensors with 0, 1, or 2 interrupt comparator outputs 1.28/1.33/1.37 MAX C precise, 2-channel, digital temp sensor 6-TDFN A ±1 C accurate remote/local temp sensor with overtemperature alarm 1.15 MAX6646/47/ C, remote, 2-channel, digital temp sensors 8-µMAX M ±0.8 C accurate, ALERT and OVERT alarms, lockup-free SMBus 1.50 MAX6652/MAX6683 SMBus temp sensors with system monitor 10-µMAX A System monitors automatically measure temp and four voltages, 1.77/1.84 include ALERT output MAX6654 Remote/local temp sensor with SMBus interface 16-QSOP M Measures CPU temp directly with ±1 C accuracy 2.30 MAX6655/MAX channel temp and voltage sensors 16-QSOP M Dual ±1 C accurate remote temp sensors and one internal temp sensor, 2.74 monitor up to four external voltages MAX6657/MAX6658 Remote temp sensors with SMBus interface 8-SO M Measure CPU temp directly with ±1 C accuracy, include ALERT and 1.89/1.95 OVERT outputs MAX6659 Remote temp sensor with SMBus interface 16-QSOP M MAX6658 plus dual OVERT outputs 2.25 MAX6680/MAX6681 Precise, 2-channel digital temp sensors 16-QSOP M Fail-safe, pin-programmable ALERT threshold, factory-set OVERT threshold, 2.35 ±1 C accuracy MAX6648/MAX6692 Precise, 2-channel digital temp sensors 8-µMAX/SO M ±0.8 C accurate, ALERT and OVERT alarms, lockup-free SMBus interface 1.50 MAX6693/MAX /5-channel temp monitor for local plus six remote temps 28-TQFN A Six/four thermal-diode inputs, local temp sensor, ±1 C accurate remote temp sensing, ALERT and OVERT outputs MAX6697/MAX /5-channel temp sensors 16-QSOP/TSSOP E Six/four remote diodes, one local diode, ALERT and OVERT outputs 3.75/2.75 MAX channel temp sensor 16-QSOP/TSSOP E Three thermistors, three remote diodes, ALERT and OVERT outputs 3.75 MAX7500 Digital temp sensor with bus-lockup protection 8-SO/µMAX M Automatic I 2 C reset and timeout WIRE/SPI-COMPATIBLE DIGITAL TEMPERATURE SENSORS DS wire digital thermometer and thermostat 8-µSOP M ±0.5 C accuracy from 0 C to +70 C, 9- to 12-bit resolution, stand-alone 1.66 thermostat has EEPROM trip points DS wire/SPI bus digital thermometer 8-µMAX/SO, M 8- to 12-bit resolution, user-selectable 3-wire or SPI interface, +1.8V 1.10 flip chip digital interface DS wire digital thermometer and thermostat 8-µSOP M ±1 C accuracy from -10 C to +85 C, 9- to 12-bit resolution, stand-alone 1.61 thermostat has EEPROM trip points MAX6627/MAX6628 Remote temp sensors 8-SOT23 M ±1 C accurate remote temp sensors with -55 C to +150 C temp range 1.78 MAX6629 MAX6632 Temp sensors with SPI serial interface 6-SOT23 M ±1 C accurate remote temp sensors with -55 C to +150 C temp range 1.39 MAX6662 Temp sensor with SPI serial interface 8-SO M ±1 C accurate temp sensor with one or two interrupt/comparator outputs 1.37 Temp ranges: A = -40 C to +125 C, C = 0 C to +70 C, E = -40 C to +85 C, I = -20 C to +85 C, M = -55 C to +125 C up recommended resale. Prices provided are for design guidance only and are FOB USA. International prices will differ due to local duties, taxes, and exchange rates. Not all packages are offered in 1k increments, and some may require minimum order quantities.

11 Temperature Sensors (continued) Temp Part Description Package Range EV Kit Features Price ($) 1-Wire DIGITAL TEMPERATURE SENSORS DS18B20 1-Wire digital thermometer 3-TO-92, 8-µSOP/SO, M ±0.5 C accuracy over -10 C to +85 C range, user-selectable 1.76 flip chip 9- to 12-bit resolution, unique 64-bit serial number, alarm function with nonvolatile user-programmable trip points DS1822 Econo 1-Wire digital thermometer 3-TO-92, 8-SO M ±2 C accuracy over -10 C to +85 C range, user-selectable 9- to 12-bit 1.61 resolution, unique 64-bit serial number, alarm function with nonvolatile userprogrammable trip points DS Wire digital thermometer with 4-bit ID 8-µSOP M ±0.5 C accuracy from -10 C to +85 C, user-selectable 9- to 12-bit 1.70 resolution, 4 pin-programmable bits to uniquely identify up to 16 sensors on a bus MAX6575L/MAX6575H Single-wire digital temp sensors 6-SOT23 M Allow up to eight temp sensors to interface with a µp on one control line 0.82 MAX6576/MAX6577 Single-wire digital temp sensors 6-SOT23 M Output is a free-running square wave with a period (MAX6576) or frequency 0.79 (MAX6577) proportional to the absolute temp of the device PWM-OUTPUT DIGITAL TEMPERATURE SENSORS MAX6666/MAX6667 High-accuracy, PWM-output temp sensors 6-SOT23, 8-SO/µMAX A Simple, single-wire PWM output, ±1 C accuracy, low 200µA (typ) current consumption 2.75 MAX6676/MAX6677 Low-voltage, 1.8kHz PWM-output temp sensors 6-SOT23 A Simple, single-wire, 1.8kHz PWM output, operate down to +1.8V, high accuracy 2.75 MAX6672/MAX6673 PWM-output temp sensors in SC70 packages 5-SC70 A Simple, single-wire PWM output, tiny SC70 packages, low 60µA (typ) supply current, kHz nominal frequency Temperature Switches Temp Part Description Package Range EV Kit Features Price ($) MAX6501 MAX V to +5.5V temp switches in SOT23 packages 5-SOT23, 7-TO-220 M Ambient temperature switches with factory-set thresholds (in 10 C increments), 0.67 push-pull or open-drain outputs MAX6505 MAX6508 Dual temp switches and window detectors 6-SOT23 M Factory-set upper limit/pin-selected lower limit, low-power, dual-threshold 0.79 switches (±3 C accuracy), open-drain or push-pull outputs MAX6509/MAX6510 Resistor-programmable thermostats 5-SOT23/6-SOT23 A Resistor-programmable, low-power temp switches (±3 C accuracy), 0.70/0.72 threshold determined by choosing appropriate 1% resistor MAX6511/12/13 Remote-diode temp switches 6-SOT23 A Factory-set thresholds, remote-diode temp sensing 0.85 MAX6615/MAX6616 ±1.5 C ambient temp switches 16-/24-QSOP M Factory-set threshold in 10 C increments, push-pull or open-drain 0.75 outputs, analog output pin MAX6685/MAX6686 Dual-output remote temp switches 8-µMAX A Pin-programmable lower thresholds, factory-set upper thresholds 1.20 MAX6687/MAX6688 Local and remote alarms in a single package 8-µMAX A ±1.5 C/±3.0 C local/remote accuracy, pin-programmable local threshold, 3.24 factory-set remote threshold Fan Controllers/Drivers Temp For a More Detailed Product Listing, Go to: Part Description Package Range EV Kit Features Price ($) MAX6639/MAX6640 Dual temperature sensors and fan controllers 16-QSOP/TQFN M / Programmable fan-control characteristics, one remote temp channel and 1.50/1.15 with RPM control one remote or local channel, two PWM outputs for fan drive MAX6641 Single remote temperature monitor and fan 10-µMAX M One remote temp channel and one local channel, ±1 C remote temp-sensing 0.99 controller accuracy, PWM output for fan drive MAX6643/44/45 Automatic PWM fan-speed controllers 10-µMAX/16-QSOP E Simple, automatic fan control, no software required 0.75 MAX6650 SMBus fan controller 10-µMAX E Linear fan-speed controller 2.03 MAX6651 SMBus fan controller 16-QSOP E Fan-speed controller with sync capability for up to four fans 2.25 MAX6653/63/64 Multifunction SMBus fan controllers with local 16-QSOP A Automatic or manual control using temp, tachometer value, or PWM duty cycle; 1.95 and remote temp measurements four alarms MAX6660 SMBus temp sensor and fan controller/driver 16-QSOP A ±1 C accurate remote temp sensor with linear fan control and on-chip power device 3.19 MAX6661 SPI temp sensor and fan controller/driver 16-QSOP A MAX6660 with SPI-compatible interface 3.39 MAX6665 Temp switch with integrated fan controller/driver 8-SO-EP A Factory-programmed fan switch with built-in driver and dual overtemp alarm outputs 1.25 MAX6668/MAX6670 Remote temp switches with integrated fan 8-µMAX/10-µMAX A Factory-programmed fan switches with remote temp-sensing junction and built-in 1.11/1.24 controller/driver fan driver; the MAX6670 has dual overtemp alarm outputs MAX6674/MAX6675 Thermocouple-to-digital converters 8-SO I Integrated, type-k, thermocouple-to-digital conversion with on-chip cold-junction 3.75/3.88 compensation; measure temp from 0 C to +128 C (MAX6674) or from 0 C to C (MAX6675) MAX6678 Dual temperature sensors and fan controllers with 20-QSOP M Five GPIOs, programmable fan-control characteristics, ±1 C remote temp-sensing 1.75 five GPIOs accuracy, +3V operation MAX6682 Thermistor-to-digital converter 8-µMAX M Low-power, thermistor-to-digital converter in 8-pin µmax package 1.82 MAX6684 Fan-failure detector/driver 8-SO E Integrates all external components; no fan tachometer output required 0.99 Temp ranges: A = -40 C to +125 C, C = 0 C to +70 C, E = -40 C to +85 C, I = -20 C to +85 C, M = -55 C to +125 C up recommended resale. Prices. provided are for design guidance only and are FOB USA. International prices will differ due to local duties, taxes, and exchange rates. Not all packages are offered in 1k increments, and some may require minimum order quantities.

12 Yes, we make that... Maxim has one of the broadest and deepest analog and mixed-signal portfolios, with over 5900 ICs in 28 categories. We average more than one product introduction per day! For 25 years, we have delivered innovative engineering solutions that add value to our customers products. 1-Wire and ibutton Devices Amplifiers and Comparators Analog Switches and Multiplexers Analog-to-Digital Converters Audio Automotive Clock Generation and Distribution Digital Potentiometers Digital-to-Analog Converters Display Drivers and Display Power Filters (Analog) Hot-Swap and Power Switching Interface and Interconnect Memories: Volatile, NV, Multifunction Microcontrollers Military/Aerospace Optoelectronics Power and Battery Management Protection and Isolation Real-Time Clocks Storage Products Supervisors, Monitors, Sequencers T/E Carrier and Packetized Comms Temperature Sensors Video Voltage References Wireless, RF, and Cable 5900 ICs in 28 Product Categories Temp Sensors-13 US 11/08 To manage your postal mail account, please visit: Maxim Integrated Products, Inc. 120 San Gabriel Drive Sunnyvale, CA 94086