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Analog Devices Inc./Maxim Integrated MAX6517UKP055+T
- Part No.:
- MAX6517UKP055+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6517UKP055+T.pdf
- Description:
- THERMOSTAT 55DEGC OPN DR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,630
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Product details
Overview
MAX6517UKP055+T from Maxim Integrated is an active-low, open-drain temperature switch with factory-programmed +55°C hot threshold, ±1.5°C max accuracy over -15°C to +65°C, 22µA typical supply current, and pin-selectable 2°C/10°C hysteresis - used for overtemperature protection in fan control and server thermal management.
For engineers reviewing the MAX6517UKP055+T datasheet, MAX6517UKP055+T pinout, MAX6517UKP055+T application, or MAX6517UKP055+T equivalent, key selection criteria include trip-point accuracy, open-drain output drive capability, analog OUT voltage linearity, hysteresis configuration, and SOT23 thermal response in still air.
Technical Context
The MAX6517UKP055+T integrates a BiCMOS analog temperature sensor, fixed voltage reference, and comparator to generate a logic signal when die temperature exceeds +55°C. Its TOVER output asserts low upon crossing the threshold, while the analog OUT pin provides a linear voltage (1.8015V − 10.62mV/°C × ΔT) for board-level calibration.
Hysteresis is controlled by the HYST pin: tied to VCC for 2°C or GND for 10°C, preventing output oscillation near trip point. The device operates from 2.7V to 5.5V and supports capacitive loads up to 1000pF without instability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7V to 5.5V - compatible with 3.3V and 5V systems without level-shifting |
| Temperature Threshold | +55°C hot threshold - factory-trimmed, no external calibration required |
| Threshold Accuracy | ±1.5°C max over -15°C to +65°C - ensures reliable trip timing in PC and server thermal zones |
| Supply Current | 22µA typical - enables always-on monitoring in battery-backed or low-power embedded systems |
| Hysteresis Options | 2°C (HYST = VCC) or 10°C (HYST = GND) - selectable per PCB layout, not software-configurable |
| Analog Output Range | 0.77V to 2.59V over -45°C to +125°C - supports ADC-based temperature verification during production test |
| Output Type | Active-low open-drain TOVER - requires external 100kΩ pullup; tolerant of pullup voltages > VCC (≤5.5V) |
Pinout & Package
MAX6517UKP055+T is housed in a 5-pin SOT23 package (U5+2 outline), with 1.6mm × 1.6mm footprint and 0.95mm height - optimized for space-constrained thermal sensing on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Analog temperature output - voltage proportional to die temperature; used for calibration and functional test |
| 2 | GND | Ground reference - lowest thermal resistance path to die; must be connected directly to PCB ground plane |
| 3 | HYST | Hysteresis select input - logic-high (VCC) sets 2°C hysteresis; logic-low (GND) sets 10°C hysteresis |
| 4 | VCC | Power supply input - bypassed with 0.1µF capacitor to suppress noise-induced false trips |
| 5 | TOVER | Open-drain active-low overtemperature output - sinks current when T ≥ +55°C; pulled up externally to enable wired-OR alarm logic |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed +55°C trip point | Eliminates need for external resistors or trimming; reduces BOM count and assembly steps |
| Pin-selectable hysteresis | Enables single-footprint design for multiple thermal response profiles without changing layout |
| Analog OUT with ±2°C linearity | Allows post-assembly validation of thermal circuit functionality using standard ADC resources |
| Open-drain TOVER with >VCC tolerance | Permits direct interface to 3.3V microcontrollers even when VCC = 2.7V, simplifying mixed-voltage systems |
| 22µA supply current | Supports continuous monitoring in always-on subsystems without impacting system power budget |
Applications
| Fan Control | Server Overtemperature Alarm |
|---|---|
Use Scenario: Thermal management in CPU cooling subsystems where airflow must activate before critical junction temperature is reached. IC Role / Device Role / Timing Role: MAX6517UKP055+T acts as dedicated hardware overtemperature detector, asserting TOVER low at +55°C to trigger fan PWM controller. Use Value: Prevents thermal throttling by initiating cooling 15–20°C below CPU Tjmax, extending component lifetime and maintaining performance stability. | Use Scenario: Rack-mounted server motherboard requiring fail-safe shutdown if ambient or VRM temperature exceeds safe operating limit. IC Role / Device Role / Timing Role: MAX6517UKP055+T serves as primary overtemperature indicator, driving interrupt input of baseboard management controller (BMC) via open-drain wire-OR bus. Use Value: Enables deterministic, hardware-level shutdown independent of firmware state - critical for data integrity during thermal fault conditions. |
| Notebook Battery Protection | RAID Controller Thermal Monitoring |
Use Scenario: Lithium-ion battery pack monitoring where cell temperature must stay below +55°C during fast charging. IC Role / Device Role / Timing Role: MAX6517UKP055+T monitors battery pack thermistor location; TOVER output disables charging FET gate driver upon threshold breach. Use Value: Meets IEC 62133 safety requirements by providing autonomous, analog-sensed cutoff without MCU intervention. | Use Scenario: High-density storage array where SAS/SATA controller ICs require localized thermal supervision to prevent data corruption. IC Role / Device Role / Timing Role: MAX6517UKP055+T is mounted adjacent to RAID controller ASIC; analog OUT verifies thermal gradient across die, while TOVER triggers throttling logic. Use Value: Correlates analog voltage slope with thermal transient response, enabling predictive throttling before error-correcting code (ECC) failure thresholds are exceeded. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6517UKP065+T | +65°C trip threshold vs. +55°C; identical pinout, supply range, and hysteresis options | Suitable for higher-temperature environments (e.g., industrial enclosures) where +55°C is too conservative | Select when thermal margin must accommodate ambient rise above 45°C or extended operation under load |
| LM75BIMM/NOPB | I²C digital interface, ±2°C accuracy, no analog output, 3.0V–5.5V supply, SO-8 package | Requires MCU firmware support and I²C routing; lacks hardware alarm assertion without polling | Choose only when system already uses I²C sensors and software-controlled threshold adjustment is preferred over fixed hardware trip |
Compared with MAX6517UKP055+T, the +65°C variant offers higher thermal headroom in less thermally constrained designs, while the LM75BIMM/NOPB trades autonomous hardware response for programmability and multi-sensor integration - neither is pin-compatible, but both serve discrete overtemperature detection roles.
Availability
MAX6517UKP055+T is available at Aetrix Electronics and suitable for fan control, server thermal alarms, notebook battery protection, and RAID controller monitoring requiring stable component supply across industrial and computing product lifecycles.
Supply support for MAX6517UKP055+T 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) designs precision analog and mixed-signal ICs for industrial, computing, and communications applications - emphasizing high reliability, low power, and small form factor.
The MAX6516–MAX6519 family delivers integrated temperature sensing and switching in SOT23 packages, targeting cost-sensitive, space-constrained thermal protection where simplicity and autonomy outweigh programmability.
FAQ
What is the exact temperature trip point of the MAX6517UKP055+T?
The MAX6517UKP055+T has a factory-programmed hot-temperature threshold of +55°C, with accuracy guaranteed to ±1.5°C maximum over the -15°C to +65°C range. This value is laser-trimmed during manufacturing and does not require external calibration. The trip point remains stable across the full operating supply range (2.7V to 5.5V) and temperature range (-55°C to +125°C).
How does the hysteresis setting affect the behavior of the MAX6517UKP055+T?
The MAX6517UKP055+T uses the HYST pin to select between 2°C and 10°C hysteresis: connect HYST to VCC for 2°C, or to GND for 10°C. With 2°C hysteresis, the device deasserts TOVER when temperature falls to +53°C after tripping at +55°C; with 10°C, it deasserts at +45°C. This prevents output chatter near the threshold and is configured at power-up - no runtime change is possible.
Can the MAX6517UKP055+T be used for undertemperature detection?
No - the MAX6517UKP055+T is specifically configured for hot-threshold operation (+55°C). It asserts TOVER low when temperature exceeds +55°C and remains asserted until temperature drops below (55°C − THYST). For cold-threshold detection (e.g., below 0°C), a different variant such as MAX6517UKN005+T must be selected, as trip polarity and internal reference are factory-set per part number.
What is the function of the OUT pin on the MAX6517UKP055+T?
The OUT pin on the MAX6517UKP055+T provides an analog voltage proportional to die temperature, ranging from 0.77V at -45°C to 2.59V at +125°C. Its transfer function follows VOUT = 1.8015V − 10.62mV/°C × (T − 30°C), enabling board-level temperature verification using an ADC. This pin is not used for logic output - TOVER handles that function.
Does the MAX6517UKP055+T require external components to operate?
The MAX6517UKP055+T requires only a 0.1µF bypass capacitor on VCC and a 100kΩ pullup resistor on TOVER to function as a standalone temperature switch. No external resistors, capacitors, or trimming components are needed for threshold setting or hysteresis selection - all are factory-programmed and pin-configured. The analog OUT pin may interface directly with an ADC without buffering.
MAX6517UKP055+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Trip Temperature Threshold:
- Hot
- Switching Temperature:
- 55°C
- Accuracy:
- ±1.5°C
- Current - Output (Max):
- -
- Output Type:
- Open Drain, Push-Pull
- Output:
- -
- Output Function:
- /OverTemp, /UnderTemp
- Selectable Hysteresis:
- Yes
- Features:
- Selectable Hysteresis
- Voltage - Supply:
- 2.7 V ~ 5.5 V
- Current - Supply:
- 22µA
- Operating Temperature:
- -55°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-5
MAX6517UKP055+T FAQ
1.How can I place an order for MAX6517UKP055+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6517UKP055+T 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 MAX6517UKP055+T reliable?
The price and inventory of MAX6517UKP055+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6517UKP055+T is usually 5 days.
3.What payment methods are accepted for MAX6517UKP055+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6517UKP055+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6517UKP055+T?
MAX6517UKP055+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6517UKP055+T 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 MAX6517UKP055+T?
For technical support, including MAX6517UKP055+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6517UKP055+T requirements.
6.How does Aetrix verify that MAX6517UKP055+T is sourced from the original manufacturer or authorized distributors?
All MAX6517UKP055+T 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 MAX6517UKP055+T meets industry standards.
7.What is the process for return or replacement of MAX6517UKP055+T?
All MAX6517UKP055+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6517UKP055+T, 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 MAX6517UKP055+T part is unused and in its original packaging.
Return procedure for MAX6517UKP055+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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