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Analog Devices Inc./Maxim Integrated MAX6519UKP065
- Part No.:
- MAX6519UKP065
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6519UKP065.pdf
- Description:
- ANALOG TEMP SENSOR SWITCHES
- Quantity:
- Payment:
- Shipping:
Inventory:730
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Product details
Overview
MAX6519UKP065 from Maxim Integrated is an active-low, open-drain temperature switch with factory-programmed +65°C hot-threshold trip point, ±1.5°C (max) accuracy over -15°C to +65°C, 22µA typical supply current, and pin-selectable 2°C/10°C hysteresis. It operates from 2.7V to 5.5V and delivers analog output voltage proportional to die temperature for board-level verification in thermal protection circuits.
For engineers reviewing the MAX6519UKP065 datasheet, MAX6519UKP065 pinout, MAX6519UKP065 application, or MAX6519UKP065 equivalent, key selection criteria include its open-drain logic polarity, SOT23-5 package compatibility, analog output testability, and precise +65°C overtemperature assertion point in fan control and server thermal management systems.
Technical Context
The MAX6519UKP065 integrates a BiCMOS analog temperature sensor, fixed voltage reference, and comparator in a single die. Its TOVER output asserts low when die temperature exceeds +65°C, with hysteresis selected via HYST pin connection to VCC (2°C) or GND (10°C).
It provides a linear analog output (OUT) ranging from 0.77V to 2.59V across -45°C to +125°C, governed by VOUT = 1.8015V − 10.62mV(T − 30), enabling post-assembly calibration. The device requires no external components beyond a 100kΩ pullup on TOVER and a 0.1µF VCC bypass capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports standard 3.3V and 5V system rails without level-shifting. |
| Temperature Threshold | +65°C hot threshold - factory-trimmed, asserts TOVER low at exact trip point for overtemperature shutdown. |
| Accuracy | ±1.5°C (max) from -15°C to +65°C - ensures reliable trip timing within narrow thermal safety margins. |
| 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) - prevents output oscillation during slow thermal transitions near trip point. |
| Analog Output Range | 0.77V to 2.59V (-45°C to +125°C) - allows direct ADC measurement for real-time temperature readback and validation. |
| Output Type | Active-low open-drain TOVER - supports wired-OR configuration with multiple sensors and flexible pullup voltage up to 5.5V. |
Pinout & Package
MAX6519UKP065 is housed in a 5-pin SOT23 package (outline 21-0057, land pattern 90-0174), RoHS-compliant, with thermal resistance θJA = 140°C/W. Pin 2 (GND) provides lowest thermal resistance path to die.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | TOVER | Open-drain, active-low overtemperature output - sinks current when die ≥ +65°C; requires external 100kΩ pullup. |
| 2 | GND | Ground reference - primary thermal conduction path; must connect to low-impedance ground plane. |
| 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 to GND with 0.1µF ceramic capacitor close to pin. |
| 5 | OUT | Analog temperature output - voltage proportional to die temperature; drives high-impedance ADC inputs directly. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed +65°C trip point | Eliminates external resistor networks or digital configuration; guarantees repeatable overtemperature response. |
| Pin-selectable hysteresis | Enables system-specific noise immunity tuning without component changes - 2°C for precision control, 10°C for noisy environments. |
| Analog output (OUT) | Permits in-circuit functional test after PCB assembly and real-time temperature monitoring without additional sensing ICs. |
| Open-drain TOVER output | Supports multi-sensor wired-OR alarm lines and level-shifted pullup (e.g., 3.3V logic controlling 5V rail shutdown). |
| Low 22µA quiescent current | Reduces self-heating error (<0.042°C at 1mA sink) and extends battery life in portable thermal monitors. |
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 active cooling before critical junction temperatures are reached. |
Use Scenario: Rack-mounted server motherboard with multi-core processors and power supplies. IC Role / Device Role / Timing Role: Fail-safe overtemperature detector that pulls down a system reset line when ambient or die temp exceeds +65°C. Use Value: Enables immediate hardware-initiated shutdown before silicon damage occurs, meeting IEC 62368-1 thermal safety requirements. |
| Notebook Battery Protection | RAID Controller Monitoring |
|
Use Scenario: Lithium-ion battery pack temperature supervision during charging cycles. IC Role / Device Role / Timing Role: Hot-threshold switch disconnecting charge path via external MOSFET when cell temperature reaches +65°C. Use Value: Complies with UL 2054 thermal cutoff requirements while minimizing BOM count versus discrete thermistor+comparator solutions. |
Use Scenario: Hard disk drive backplane in enterprise storage arrays with stacked PCBs and limited airflow. IC Role / Device Role / Timing Role: Localized temperature monitor placed near RAID controller ASIC to assert TOVER and throttle I/O bandwidth. Use Value: Maintains data integrity by preventing controller lockup due to thermal runaway, with analog OUT enabling firmware logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6517UKP065 | Same SOT23-5 package, identical +65°C hot threshold and open-drain output, but lacks analog OUT pin (pin 1 = NC). | Used where only digital alarm is needed and board space permits removal of analog test capability. | Select MAX6517UKP065 if analog output is unnecessary and cost reduction per unit is prioritized. |
| LM75BIMM-3/NOPB | I²C digital interface, ±2°C accuracy, 8-pin VSSOP, requires microcontroller polling vs. autonomous analog/digital operation. | Suitable for systems with available I²C bus and firmware support for periodic temperature reads and configurable thresholds. | Choose LM75BIMM-3/NOPB when programmable thresholds, remote register access, or multi-sensor daisy-chaining are required. |
Compared with MAX6519UKP065, MAX6517UKP065 removes analog diagnostics but retains identical trip behavior and footprint, while LM75BIMM-3/NOPB trades autonomous switching for digital configurability and higher accuracy tolerance - making MAX6519UKP065 optimal for deterministic, low-latency, self-contained thermal alarms.
Availability
MAX6519UKP065 is available at Aetrix Electronics and suitable for server thermal shutdown, notebook battery protection, RAID controller monitoring, and fan control applications requiring stable component supply across industrial and computing product lifecycles.
Supply support for MAX6519UKP065 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 demanding industrial, computing, and communications applications.
The MAX6516–MAX6519 family delivers integrated, low-cost temperature switches with analog output and selectable hysteresis for embedded thermal protection where simplicity, reliability, and testability are critical.
FAQ
What is the exact temperature trip point of the MAX6519UKP065?
The MAX6519UKP065 has a factory-programmed hot-threshold trip point of +65°C. This value is trimmed during production and guaranteed to be accurate within ±1.5°C over the -15°C to +65°C range. The device asserts its open-drain TOVER output low when the die temperature equals or exceeds this threshold, with hysteresis applied based on the HYST pin configuration.
Does the MAX6519UKP065 require external components to operate?
No, the MAX6519UKP065 requires no external passive components for basic operation. A 0.1µF ceramic capacitor on VCC and a 100kΩ pullup resistor on TOVER are recommended for stability and logic interfacing, but the core temperature sensing and switching function is fully autonomous. The analog OUT pin can be connected directly to an ADC without signal conditioning.
How does the HYST pin affect the behavior of the MAX6519UKP065?
The HYST pin on the MAX6519UKP065 selects hysteresis magnitude: connecting HYST to VCC configures 2°C hysteresis, while connecting it to GND configures 10°C hysteresis. This prevents output chatter when temperature fluctuates near the +65°C trip point. The hysteresis window is centered on the trip threshold - for example, with 10°C hysteresis, TOVER releases at +55°C after asserting at +65°C.
Can the MAX6519UKP065 be used to monitor temperatures below -45°C?
No, the MAX6519UKP065 is not specified for operation below -45°C. Its functional temperature range is -55°C to +125°C, but accurate switching at -45°C requires VCC > 4.5V per datasheet Note 3. Below -45°C, the internal reference and sensor performance are not characterized, and trip accuracy is not guaranteed. For sub-zero cold-threshold applications, MAX6519UKN045 (−45°C) is the appropriate variant.
What is the purpose of the OUT pin on the MAX6519UKP065?
The OUT pin on the MAX6519UKP065 provides an analog voltage proportional to die temperature, ranging from 0.77V at -45°C to 2.59V at +125°C. It enables board-level functional testing post-assembly, real-time temperature monitoring via MCU ADC, and verification of thermal protection circuitry integrity - all without adding external sensors or calibration components.
MAX6519UKP065 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 FAQ
1.How can I place an order for MAX6519UKP065 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6519UKP065 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 reliable?
The price and inventory of MAX6519UKP065 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6519UKP065 is usually 5 days.
3.What payment methods are accepted for MAX6519UKP065?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6519UKP065 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6519UKP065?
MAX6519UKP065 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6519UKP065 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?
For technical support, including MAX6519UKP065 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6519UKP065 requirements.
6.How does Aetrix verify that MAX6519UKP065 is sourced from the original manufacturer or authorized distributors?
All MAX6519UKP065 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 meets industry standards.
7.What is the process for return or replacement of MAX6519UKP065?
All MAX6519UKP065 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6519UKP065, 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 part is unused and in its original packaging.
Return procedure for MAX6519UKP065:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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