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Analog Devices Inc./Maxim Integrated MAX6519UKP065-T
- Part No.:
- MAX6519UKP065-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6519UKP065-T.pdf
- Description:
- ANALOG TEMP SENSOR SWITCHES
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
MAX6519UKP065-T from Maxim Integrated is a factory-programmed analog temperature sensor switch with active-low open-drain overtemperature output, +65°C trip 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 thermal shutdown in fan control, server power management, and embedded system protection.
For engineers reviewing the MAX6519UKP065-T datasheet, MAX6519UKP065-T pinout, MAX6519UKP065-T application, or MAX6519UKP065-T equivalent, this page delivers verified technical context, exact SOT23-5 pin mapping, real-world use cases, and validated alternative options for thermal monitoring designs requiring stable trip-point behavior and board-level testability via analog output.
Technical Context
The MAX6519UKP065-T integrates a BiCMOS analog temperature sensor, fixed voltage reference, and comparator in a single die - enabling direct die-temperature sensing without external components. Its TOVER output asserts low when die temperature exceeds +65°C, with hysteresis selected by HYST pin (VCC = 2°C, GND = 10°C).
It provides a linear analog output (OUT) ranging from 0.77V to 2.59V across -45°C to +125°C, calibrated to VOUT = 1.8015V − 10.62mV(T − 30), and supports capacitive loads up to 1000pF. Operation requires 2.7V–5.5V supply; −45°C threshold operation mandates VCC > 4.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7V to 5.5V - supports wide-range industrial and computing rails without LDO buffering. |
| Temperature Threshold | +65°C hot threshold - factory-trimmed, no calibration required for precise overtemperature detection. |
| Accuracy | ±1.5°C max over −15°C to +65°C - ensures reliable thermal margin in PC, RAID, and server applications. |
| Supply Current | 22µA typical - enables always-on thermal monitoring in battery-backed or low-power systems. |
| Hysteresis | PIN-selectable 2°C or 10°C - prevents output chatter near trip point without external RC network. |
| Analog Output Range | 0.77V to 2.59V (−45°C to +125°C) - allows post-assembly board-level temperature verification using ADC. |
| Output Type | Active-low open-drain TOVER - enables wired-OR of multiple sensors for window alarms with single pullup. |
Pinout & Package
MAX6519UKP065-T is housed in a 5-pin SOT23 package (U5+2 outline, 21-0057), with thermal pad omitted and pin 2 (GND) providing lowest thermal resistance to die.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | TOVER | Open-drain active-low overtemperature output - sinks current when T ≥ +65°C; requires external 100kΩ pullup to ≤5.5V. |
| 2 | GND | Ground reference - primary thermal conduction path; must connect to large copper pour for accurate die-temp tracking. |
| 3 | HYST | Hysteresis select input - tie to VCC for 2°C hysteresis, GND for 10°C; no pullup/pulldown required. |
| 4 | VCC | Power supply input - bypass with 0.1µF ceramic capacitor close to pin for noise immunity. |
| 5 | OUT | Analog temperature output - voltage proportional to die temperature; drives high-Z ADC inputs directly. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed +65°C trip | Eliminates external resistor networks or digital configuration - reduces BOM count and layout complexity. |
| Open-drain TOVER output | Enables direct wired-OR with other MAX6517/MAX6519 devices for multi-threshold alarms without logic gates. |
| Analog OUT pin | Supports production-line functional test of thermal circuitry post-assembly using existing ADC resources. |
| 22µA supply current | Permits continuous monitoring in always-on subsystems (e.g., BMC, PMIC supervision) without measurable power penalty. |
| Stable with 1000pF load | Allows direct connection to long PCB traces or scope probes during debug without oscillation or settling delay. |
Applications
| Fan Control | Server Thermal Shutdown |
|---|---|
|
Use Scenario: CPU or GPU heatsink temperature monitoring in desktop PCs and workstations. IC Role / Device Role / Timing Role: Overtemperature switch asserting TOVER low at +65°C to trigger PWM fan speed increase. Use Value: Prevents thermal throttling by initiating cooling before critical junction temperatures are reached. |
Use Scenario: Power supply rail monitoring in 1U rack servers with limited airflow. IC Role / Device Role / Timing Role: Fail-safe thermal cutoff - TOVER low disables DC-DC converters when ambient or component temp exceeds +65°C. Use Value: Avoids catastrophic MOSFET failure or capacitor degradation by enforcing hard thermal limit independent of software. |
| RAID Controller Protection | Notebook Battery Management |
|
Use Scenario: Temperature supervision of SAS/SATA controller ICs in enterprise storage enclosures. IC Role / Device Role / Timing Role: Analog OUT used for periodic health check; TOVER triggers immediate drive spin-down on overtemp. Use Value: Maintains data integrity by halting I/O before controller silicon exceeds safe operating range. |
Use Scenario: Real-time battery pack temperature monitoring during fast charging cycles. IC Role / Device Role / Timing Role: +65°C trip point aligned with Li-ion cell thermal runaway onset; TOVER signals host MCU to reduce charge current. Use Value: Meets UL 2054 and IEC 62133 safety requirements for thermal cutoff without firmware dependency. |
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 | Same SOT23-5 package, identical +65°C hot threshold and open-drain TOVER, but lacks analog OUT pin. | No board-level temperature verification capability; suitable only where digital-only alert suffices. | Select MAX6517UKP065-T if analog testability is unnecessary and cost reduction is prioritized. |
| LM75BIMM-3/NOPB | I²C digital output, −55°C to +125°C range, ±2°C accuracy, requires microcontroller interface and firmware polling. | Not a drop-in replacement - needs bus arbitration, interrupt handling, and calibration code; no native hysteresis pin. | Choose LM75BIMM-3/NOPB only when system already uses I²C thermal sensors and centralized firmware control is preferred. |
Compared with MAX6517UKP065-T, the MAX6519UKP065-T adds analog OUT for production testability without increasing footprint or supply current; versus LM75BIMM-3/NOPB, it delivers deterministic, zero-latency overtemperature response without software overhead or bus contention.
Availability
MAX6519UKP065-T is available at Aetrix Electronics and suitable for fan control, server thermal shutdown, and RAID controller protection requiring stable component supply, guaranteed RoHS-compliant sourcing, and full lifecycle support.
Supply support for MAX6519UKP065-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, mixed-signal, and power management ICs for industrial, computing, and communications markets.
The MAX6516–MAX6519 family targets cost-sensitive thermal protection applications requiring factory-trimmed thresholds, ultra-low power, and analog testability - optimized for embedded systems where reliability and simplicity outweigh programmability.
FAQ
What is the exact temperature trip point of the MAX6519UKP065-T?
The MAX6519UKP065-T has a factory-programmed hot-temperature threshold of +65°C, with accuracy of ±1.5°C maximum over the −15°C to +65°C range. This value is laser-trimmed during production and requires no external calibration. The MAX6519UKP065-T asserts its TOVER output low when die temperature reaches or exceeds this point.
Does the MAX6519UKP065-T require external components to operate?
No, the MAX6519UKP065-T requires no external components for basic operation. A 0.1µF bypass capacitor on VCC is recommended for noise immunity, and a 100kΩ pullup resistor on TOVER is required for proper open-drain logic level translation. The MAX6519UKP065-T integrates the temperature sensor, reference, and comparator internally.
Can the MAX6519UKP065-T be used for undertemperature detection?
No - the MAX6519UKP065-T is configured exclusively for hot-threshold (overtemperature) detection at +65°C. It features TOVER only, not TUNDER. For cold-threshold applications, select a MAX6519UKNxxx-T variant (e.g., MAX6519UKN005-T for −5°C). The MAX6519UKP065-T does not assert on falling temperature.
What is the function of the OUT pin on the MAX6519UKP065-T?
The OUT pin on the MAX6519UKP065-T provides an analog voltage proportional to die temperature, ranging from 0.77V at −45°C to 2.59V at +125°C. It follows VOUT = 1.8015V − 10.62mV(T − 30), enabling board-level functional testing and ambient temperature readback without additional sensors. The MAX6519UKP065-T's OUT pin drives high-impedance ADC inputs directly.
How is hysteresis selected on the MAX6519UKP065-T?
Hysteresis on the MAX6519UKP065-T is selected via the HYST pin: connect HYST to VCC for 2°C hysteresis, or to GND for 10°C hysteresis. This pin-strapping method eliminates external timing components and ensures consistent switching behavior. The MAX6519UKP065-T does not support dynamic hysteresis adjustment - selection is static at power-up.
MAX6519UKP065-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Trip Temperature Threshold:
- Hot
- Switching Temperature:
- 65°C
- Accuracy:
- ±1.5°C
- Current - Output (Max):
- -
- Output Type:
- Open Drain
- Output:
- Active Low
- 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
MAX6519UKP065-T FAQ
1.How can I place an order for MAX6519UKP065-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6519UKP065-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 MAX6519UKP065-T reliable?
The price and inventory of MAX6519UKP065-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6519UKP065-T is usually 5 days.
3.What payment methods are accepted for MAX6519UKP065-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6519UKP065-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6519UKP065-T?
MAX6519UKP065-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6519UKP065-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 MAX6519UKP065-T?
For technical support, including MAX6519UKP065-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6519UKP065-T requirements.
6.How does Aetrix verify that MAX6519UKP065-T is sourced from the original manufacturer or authorized distributors?
All MAX6519UKP065-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 MAX6519UKP065-T meets industry standards.
7.What is the process for return or replacement of MAX6519UKP065-T?
All MAX6519UKP065-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6519UKP065-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 MAX6519UKP065-T part is unused and in its original packaging.
Return procedure for MAX6519UKP065-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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