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Analog Devices Inc./Maxim Integrated MAX1617MEE+
- Part No.:
- MAX1617MEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog and Digital Output
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1617MEE+.pdf
- Description:
- SENSOR DIGITAL -55C-125C 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:658
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Product details
Overview
The MAX1617MEE+ from Maxim Integrated is a dual-channel digital thermometer IC that measures both local (die) and remote (external diode-connected transistor) temperatures with ±2°C local accuracy (+60°C to +100°C) and ±3°C remote accuracy (+60°C to +100°C), operating from +3V to +5.5V supply, in a 16-pin QSOP package, widely used for thermal monitoring in desktop/notebook computers and LAN servers.
For engineers reviewing the MAX1617MEE+ datasheet, MAX1617MEE+ pinout, MAX1617MEE+ application, or MAX1617MEE+ equivalent, key selection considerations include SMBus 2-wire interface compatibility, programmable over/under-temperature alarms, remote diode bias current (80–120 µA), conversion time (94–156 ms), and standby current (3 µA typ).
Technical Context
The MAX1617MEE+ integrates an 8-bit averaging ADC, dual-channel multiplexer, switched current source for remote diode biasing, and full SMBus 2.0-compliant interface logic. It supports Write Byte, Read Byte, Send Byte, and Receive Byte protocols with alert response addressing.
Its analog front end performs differential measurement across DXP–DXN with internal 0.65 V bias on DXN, accepts diode-connected transistors (e.g., MMBT3904), and includes continuity fault detection via DXP voltage monitoring above VCC − 1 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Temperature Resolution | 8 bits, monotonic, 1°C per LSB in two's-complement format - enables integer-degree reporting without interpolation. |
| Local Accuracy | ±2°C at +60°C to +100°C - sufficient for CPU die temperature tracking in computing platforms. |
| Remote Accuracy | ±3°C at +60°C to +100°C - validated across multiple 2N3904-family transistors without calibration. |
| Supply Range | +3.0 V to +5.5 V - compatible with standard 3.3 V and 5 V system rails. |
| Standby Current | 3 µA typical - allows persistent thermal monitoring during system sleep states with minimal battery drain. |
| Conversion Time | 94–156 ms per dual-channel measurement - defines minimum interval between valid temperature updates. |
| SMBus Clock Max | 100 kHz - ensures interoperability with standard SMBus controllers without timing violations. |
Pinout & Package
MAX1617MEE+ is housed in a 16-pin QSOP surface-mount package (3.9 mm × 4.9 mm, 0.65 mm pitch). Pin functions are validated per Maxim's official datasheet Rev 3 (11/16).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 2) | Power supply input | Accepts +3V to +5.5V; requires 0.1 µF bypass capacitor near pin for noise immunity. |
| DXP (Pin 3) | Remote diode positive terminal | Supplies 80–120 µA bias current; must not float - tie to DXN if remote sensor unused. |
| DXN (Pin 4) | Remote diode negative terminal | Biased internally at ~0.65 V above GND; forms differential pair with DXP for accurate ΔVBE sensing. |
| ADD0 / ADD1 (Pins 6, 10) | SMBus slave address select | Sampled at power-up to set 7-bit slave address (0001100b default); >50 pF capacitance causes misread. |
| SMBCLK / SMBDATA (Pins 14, 12) | SMBus clock/data bidirectional lines | Open-drain, 5 pF input capacitance; support 100 kHz max clock with defined setup/hold timing. |
| ALERT (Pin 11) | Interrupt output | Open-drain active-low signal asserted on THIGH/TLOW violation or remote diode open fault. |
| STBY (Pin 15) | Hardware standby control | Low = enter standby (<10 µA current); overrides software commands and truncates ongoing conversions. |
| GND (Pins 7, 8) | Ground reference | Dual ground pins reduce ground bounce; must connect to low-impedance system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent temperature channels | Simultaneous local (die) and remote (external transistor) sensing eliminates need for separate sensors in compact thermal management systems. |
| No calibration required | Factory-trimmed offset and gain ensure ±3°C remote accuracy across multiple transistor vendors (MMBT3904, KST3904, FMMT3904), reducing BOM and test cost. |
| Programmable alarm thresholds | Four user-writable registers (THIGH/TLOW per channel) enable precise thermal trip points for fan control or shutdown logic without external comparators. |
| SMBus Alert Response support | Enables multi-device interrupt sharing on single ALERT line with automatic return-address resolution - critical for dense server motherboard designs. |
| Diode continuity fault detection | Monitors DXP voltage pre-conversion; flags open-circuit remote diodes before temperature error propagates into system control loops. |
Applications
| Desktop & Notebook Computers | LAN Servers |
|---|---|
Use Scenario: Real-time CPU and VRM thermal monitoring during dynamic workload scaling. IC Role / Device Role / Timing Role: Local channel reads processor die temperature; remote channel reads discrete MOSFET junction via 2N3904 mounted on heatsink. Use Value: Enables adaptive fan speed control with ±2°C local accuracy, preventing thermal throttling while minimizing acoustic noise. | Use Scenario: Blade server chassis with multiple CPUs and hot-swap PSUs requiring centralized thermal supervision. IC Role / Device Role / Timing Role: Acts as SMBus node on shared system management bus, reporting local ambient and remote CPU die temps to baseboard management controller (BMC). Use Value: Supports predictive failure analysis via trended remote diode drift; 3 µA standby current extends uptime during low-utilization periods. |
| Smart Battery Packs | Industrial Controls |
Use Scenario: Monitoring cell stack temperature and protection circuit temperature in Li-ion battery packs. IC Role / Device Role / Timing Role: Remote channel tracks thermistor-equivalent 2N3904 on battery cell tab; local channel monitors protection IC junction. Use Value: Provides ±3°C remote accuracy without NTC calibration, enabling safe fast-charge algorithms compliant with IEC 62133. | Use Scenario: Thermal safety interlock in PLC backplane modules exposed to wide ambient (-40°C to +85°C). IC Role / Device Role / Timing Role: Local channel validates module ambient; remote channel monitors power semiconductor junction via SOT-23 transistor on heatsink. Use Value: Fault-tolerant operation with diode-open detection prevents false thermal shutdown; 16-pin QSOP fits constrained industrial PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar remote/local temperature sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6657AESA+ | Higher local accuracy (±1°C), 8-pin SO package, no remote diode channel - single-channel only. | Lacks remote sensing capability; suitable only for local-only monitoring where space is critical. | Select when board area is constrained and only die temperature is needed; not a functional substitute for dual-channel use cases. |
| LM94022QDCNTQ1 | Automotive-grade AEC-Q100, ±1.5°C local accuracy, 6-pin WSON, integrated remote diode driver. | Qualified for automotive under-hood environments; lacks SMBus - uses I²C with different register map and alarm behavior. | Choose for automotive thermal management where qualification and I²C compatibility outweigh SMBus requirement. |
Compared with MAX1617MEE+, MAX6657AESA+ saves board space but removes remote sensing entirely, while LM94022QDCNTQ1 adds automotive reliability and tighter accuracy but requires firmware redesign due to non-SMBus protocol and register differences.
Availability
MAX1617MEE+ is available at Aetrix Electronics and suitable for desktop/notebook computers, LAN servers, and industrial controls requiring stable component supply with long-term lifecycle support.
Supply support for MAX1617MEE+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, computing, and communications markets.
The MAX1617 belongs to Maxim's precision temperature sensor product line, designed specifically for SMBus-based thermal monitoring in space-constrained, multi-point computing and telecom infrastructure where calibration-free remote diode sensing is essential.
FAQ
What is the operating temperature range of the MAX1617MEE+?
The MAX1617MEE+ operates across -55°C to +125°C, with guaranteed local temperature accuracy of ±2°C from +60°C to +100°C and ±3°C from 0°C to +85°C. Remote channel accuracy is ±3°C from +60°C to +100°C and ±5°C from -55°C to +125°C. Junction temperature is rated to +150°C, supporting harsh thermal environments typical in servers and industrial controls.
Does the MAX1617MEE+ require calibration for remote temperature measurements?
No, the MAX1617MEE+ does not require calibration for remote temperature measurements. Its factory-trimmed architecture achieves ±3°C accuracy across multiple diode-connected transistors (e.g., MMBT3904, KST3904, FMMT3904) without user adjustment. This eliminates production calibration steps and reduces system-level test time and cost.
How does the MAX1617MEE+ handle remote diode faults?
The MAX1617MEE+ includes built-in remote diode continuity fault detection. At the start of each conversion, it checks whether DXP rises above VCC − 1 V due to the bias current source - indicating an open-circuit diode. The status byte reflects this condition, and the ALERT pin asserts if enabled, allowing immediate system-level fault response without relying on temperature deviation thresholds.
What SMBus protocols does the MAX1617MEE+ support?
The MAX1617MEE+ supports four standard SMBus protocols: Write Byte, Read Byte, Send Byte, and Receive Byte. It uses a fixed 7-bit slave address (0001100b by default), configurable via ADD0/ADD1 pins. The device responds to SMBus Alert Response addressing, enabling multi-node interrupt arbitration on shared ALERT lines in complex systems.
Can the MAX1617MEE+ measure the die temperature of other ICs?
Yes, the MAX1617MEE+ can directly measure the die temperature of other ICs - such as microprocessors and ASICs - that integrate an on-chip, diode-connected transistor. The remote channel interfaces with the IC's dedicated thermal diode pins using the same DXP/DXN connection scheme, leveraging the MAX1617MEE+'s calibrated current source and differential ADC for accurate junction temperature reading.
MAX1617MEE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Sensor Type:
- Digital, Local/Remote
- Sensing Temperature - Local:
- -55°C ~ 125°C
- Sensing Temperature - Remote:
- -55°C ~ 125°C
- Output Type:
- SMBus
- Voltage - Supply:
- 3V ~ 5.5V
- Resolution:
- 7 b
- Features:
- One-Shot, Standby Mode
- Accuracy - Highest (Lowest):
- ±2°C (±3°C)
- Test Condition:
- 60°C ~ 100°C (-40°C ~ 125°C)
- Operating Temperature:
- -55°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-QSOP
MAX1617MEE+ FAQ
1.How can I place an order for MAX1617MEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1617MEE+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX1617MEE+ reliable?
The price and inventory of MAX1617MEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1617MEE+ is usually 5 days.
3.What payment methods are accepted for MAX1617MEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1617MEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1617MEE+?
MAX1617MEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1617MEE+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX1617MEE+?
For technical support, including MAX1617MEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1617MEE+ requirements.
6.How does Aetrix verify that MAX1617MEE+ is sourced from the original manufacturer or authorized distributors?
All MAX1617MEE+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX1617MEE+ meets industry standards.
7.What is the process for return or replacement of MAX1617MEE+?
All MAX1617MEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1617MEE+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX1617MEE+ part is unused and in its original packaging.
Return procedure for MAX1617MEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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