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MAX31782 SOP-8
MAXIM
  • MAX31782
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MAX31782

Industry's First Microcontroller with Six Independent Channels of Closed-Loop Fan Control

Manufacturer :
Maxim Integrated
Package/Case :
SOP-8
Product Categories :
Switches and Multiplexers (Mid and High Voltage)
Datasheet:
MAX31782 PDF
RoHs Status:
Lead free / RoHS Compliant
In-stock:
792

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MAX31782 Product Details

The MAX31782 provides a complete solution for the monitoring and controlling of complex system physical health characteristics based on a high-performance, MAXQ20, 16-bit microcontroller core with generous amounts of flash program/data and RAM data memory. I/O resources include an accurate measurement system for temperature and voltage, PWM outputs, timer inputs, and GPIO to support monitoring and controlling critical system parameters such as temperature, voltage, fan speed, and chassis intrusion. Direct connection of diode-connected transistors used as remote temperature sensors is supported as well as expansion to a virtually unlimited number of external digital temperature sensor ICs using the on-chip master I2C interface. An independent slave I2C interface facilitates communication to a host microprocessor in addition to passwordprotected in-system reprogramming of the on-chip flash. Ease of development is supported with highly versatile C-compilers and development software that programs flash and performs in-circuit debug through the integrated JTAG interface and associated hardware. All these features combined make the device a highly flexible platform, allowing the designer to easily create a customized complex system management solution.

The MAX31782 provides a complete solution for the monitoring and controlling of complex system physical health characteristics based on a high-performance, MAXQ20, 16-bit microcontroller core with generous amounts of flash program/data and RAM data memory. I/O resources include an accurate measurement system for temperature and voltage, PWM outputs, timer inputs, and GPIO to support monitoring and controlling critical system parameters such as temperature, voltage, fan speed, and chassis intrusion. Direct connection of diode-connected transistors used as remote temperature sensors is supported as well as expansion to a virtually unlimited number of external digital temperature sensor ICs using the on-chip master I2C interface. An independent slave I2C interface facilitates communication to a host microprocessor in addition to passwordprotected in-system reprogramming of the on-chip flash. Ease of development is supported with highly versatile C-compilers and development software that programs flash and performs in-circuit debug through the integrated JTAG interface and associated hardware. All these features combined make the device a highly flexible platform, allowing the designer to easily create a customized complex system management solution.

S Efficient C-Language Programming S 36KWords Total Program Memory 32KWords Flash Program Memory 4KWords ROM Program Memory S 1KWords Data RAM S 12-Bit ADC with 7-Input Mux for Temperature and

Features

S Temperature Measurement Analog Front-End 0.125NC Resolution Diode Series Resistance Cancellation S Six Timer/Fan Tachometer Inputs S Six 16-Bit PWM Outputs for Fan Speed or D/A

Applications
S Power-On Reset and Brownout Monitors S JTAG Port Supports In-System Debug and Flash
Network Switches/Routers Base Stations Servers Smart Grid Network Systems
S Internal Oscillator Requires No Crystal to 5.5V Operating Voltage Range
PART MAX31782ETL+ MAX31782ETL+T TEMP RANGE to +85NC PIN-PACKAGE 40 TQFN-EP* 40 TQFN-EP*
Typical Operating Circuit appears at end of data sheet.
+Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata.

For pricing, delivery, and ordering information, please contact Maxim Direct 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.

VDD to +5.5V All Other Pins to VSS except REG18 and -0.5V to (VDD + 0.5V)* SCL, SDA, MSDA, MSCL, P6.0�P6.4 Continuous Sink Current..................... 20mA each, 50mA total *Subject to not exceeding +5.5V.

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

P6.0�P6.4 Continuous Source Current....20mA each, 50mA total Operating Temperature Range........................... to +85NC Storage Temperature Range............................ to +125NC Lead Temperature (soldering, 10s).................................+260NC Soldering Temperature (reflow).......................................+260NC

(TA to +85NC, unless otherwise noted.) PARAMETER VDD Operating Voltage Range Input Logic 1 Input Logic 0 Input Logic-High: SCL, SDA, MSDA Input Logic-Low: SCL, SDA, MSDA Input Logic-High: GPIO (Including SCL, SDA, MSCL, and MSDA Under Full VDD Range) Input Logic-Low: GPIO (Including SCL, SDA, MSCL, and MSDA Under Full VDD Range) SYMBOL VDD VIH VIL 2.7V P VDD P 3.6V (Note 2.7V P VDD P 3.6V (Note 1) (Note 1) CONDITIONS MIN 0.7 x VDD x VDD 0.3 x VDD TYP MAX 5.5 VDD 0.3 x VDD 0.3 +0.8 UNITS

(VDD to +85NC, unless otherwise noted. Typical values are at VDD = +25NC, unless otherwise noted.) PARAMETER Supply Current Brownout Voltage Brownout Hysteresis Internal System Clock System Clock Error (Note 3) SYMBOL ICPU ISTOP IPROGRAM VBO VBOH fMOSC Initial tolerance, = +25NC, VDD = 5.5V fERR:MOSC -2 -5.5 Monitors VDD (Note 1) Monitors VDD (Note 1) 2.40 (Note 2) CONDITIONS Assuming 100% CPU duty cycle (Note 2) MIN TYP MAX 2.34 1250 UNITS V mV MHz

(VDD to +85NC, unless otherwise noted. Typical values are at VDD = +25NC, unless otherwise noted.) PARAMETER System Clock Startup Output Logic-Low: SDA, MSCL, MSDA P6.0�P6.4, PWM.0�PWM.5 Output Logic-High: P6.0�P6.4, PWM.0�PWM.5 GPIO Mode Pullup Current ADC Voltage Conversion Time ADC Temperature Conversion Time ADC Internal Reference ADC Voltage Measurement Error ADC Internal Reference Temperature Drift ADC Internal Reference Initial Accuracy (+25NC) ADC External Reference Buffer Accuracy ADC Operating Current ADC Full-Scale Input Voltage (Note 6) ADC Measurement Resolution ADC Bit Resolution AD0P�AD5P Input Resistance ADC Integral Nonlinearity ADC Differential Nonlinearity ADC Offset Internal Temperature Measurement Error RIN INL DNL VOFFSET to +60NC, TDIODE to +120NC Remote Temperature Measurement Error (MAX31782 Error Only) to +60NC, TDIODE to +85NC, TDIODE to +85NC, TDIODE +2.75 +3.0 IADC VFS VLSB (Note 5) This current is in addition to ICPU ADGAIN = 0, factory set, internal reference ADGAIN = 1, factory set, internal reference ADGAIN = 0 ADGAIN Q4 Q1 VERR 1.237 5.555 SYMBOL tSU:MOSC VOL1 VOH1 IPU tCONV_V tCONV_T CONDITIONS From POR, MOSC inactive IOL = 4mA (Note 1) IOH = -2mA (Note 1) VPIN = VSS, VDD = 3.3V (Note 4) (Note VDD MIN TYP 1000 0.4 MAX UNITS MOSC Cycles V FV Bits MI LSB NC


Feature

  • Low On Resistance < 20Ω Typical (35Ω Max)
  • Guaranteed Matched On Resistance Between Channels < 2Ω
  • Guaranteed Flat On Resistance over Analog Signal Range Δ3Ω Max
  • Guaranteed Charge Injection < 10pC
  • Guaranteed Off-Channel Leakage < 6nA at +85°C
  • ESD Guaranteed > 2000V per Method 3015.7
  • Single-Supply Operation (+10V to +30V)
  • Bipolar-Supply Operation (±4.5V to ±20V)
  • TTL-/CMOS-Logic Compatible
  • Rail-to-Rail Analog Signal Handling Capability

Applications

  • Battery-Powered Applications
  • Communication Systems
  • Guidance and Control Systems
  • Heads-Up Displays
  • Military Radios
  • PBX, PABX
  • Sample-and-Hold Circuits
  • Test Equipment

MAX31782 Block Diagram
(Picture: Diagram)

Technical Parameters

Protocol - Con (pF) 30
Functions Switch Coff (pF) 8
Config. SPST Features -
Channels 1 Off. Iso. (dB) 68
Normal Position Closed Crosstalk (dB) 85
Vsupply (Single) (min) (V) 10 \u0394Ron (max) (\u03a9) 2
Vsupply (Single) (max) (V) 30 Rflat(on) (max) (\u03a9) 3
Vsupply (Dual) (min) (\u00b1V) 4.5 Fault Protect. (\u00b1V) -
Vsupply (Dual) (max) (\u00b1V) 20 ESD Protect. (\u00b1kV) -
Ron (max) (\u03a9) 45 RoHS Available Yes
Bandwidth (MHz) - Industry Qualified -
Il(off) (max) (nA) 0.25 Package/Pins PDIP/8 ,SOIC (N)/8
ton (max) (ns) 175 Smallest Available Pckg. (max w/pins) (mm2) 30.9
toff (max) (ns) 145 Budgetary Price (See Notes) $2.62 @1k
Qinjection (pC) 10

MAX31782 Documents

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2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

FAQ:

Q: How does Jotrin guarantee that MAX31782 is the original manufacturer or agent of MAXIM?
We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their MAX31782 devices; we pay more attention to the channels and quality of MAX31782 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of MAX31782 chips? Including MAXIM original factory information, Switches and Multiplexers (Mid and High Voltage) application, MAX31782 pictures?
You can use Jotrin's intelligent search engine, or filter by Switches and Multiplexers (Mid and High Voltage) category, or find it through Maxim Integrated Information page.
Q: Are the MAXIM's MAX31782 price and stock displayed on the platform accurate?
The MAXIM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for MAX31782, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of MAX31782?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MAX31782 we delivered, we will accept the replacement or return of the MAX31782 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of MAX31782.
(3)The MAX31782 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as MAX31782 datasheet pdf, MAX317 pin diagram?
Need any After-Sales service, please feel free contact us: sales@jotrin.com

Maxim Integrated

Maxim
Maxim Integrated Products is a global range of linearity, mixed-signal integrated circuits (IC) design, R & D and manufacturing leader, has designed, developed, and manufactured analog, mixed-signal,...
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