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Analog Devices Inc./Maxim Integrated MAX6519UKP105+
- Part No.:
- MAX6519UKP105+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6519UKP105+.pdf
- Description:
- MAX6519 2.7V TO 5.5V, ANALOG TEM
- Quantity:
- Payment:
- Shipping:
Inventory:9,826
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Product details
Overview
MAX6519UKP105+ from Maxim Integrated is an active-low, open-drain analog temperature sensor switch with factory-programmed +105°C hot-temperature 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 MAX6519UKP105+ datasheet, MAX6519UKP105+ pinout, MAX6519UKP105+ application, or MAX6519UKP105+ equivalent, key selection criteria include its open-drain output structure, SOT23-5 package compatibility, analog output for board-level testing, and cold/hot threshold configuration constraints requiring VCC > 4.5V only for -45°C trip points (not applicable here).
Technical Context
The MAX6519UKP105+ integrates a fixed voltage reference, negative-TCO temperature sensor, and comparator in a single BiCMOS die. Its TOVER output asserts low when die temperature exceeds +105°C, with hysteresis set by HYST pin connection (VCC = 2°C, GND = 10°C).
It delivers 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), and supports capacitive loads up to 1000pF without instability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - operates across standard logic rails; no external regulator needed. |
| Temperature Threshold | +105°C hot threshold - triggers TOVER low at precisely +105°C, factory-trimmed. |
| Threshold Accuracy | ±1.5°C max over -15°C to +65°C - ensures reliable alarm activation within industrial ambient ranges. |
| Supply Current | 22µA typical - enables always-on thermal monitoring in battery-backed or low-power systems. |
| Hysteresis Options | 2°C (HYST = VCC) or 10°C (HYST = GND) - prevents output chatter near trip point during slow thermal transients. |
| Analog Output Range | 0.77V to 2.59V (-45°C to +125°C) - allows post-assembly calibration and functional verification via ADC readback. |
| Output Type | Active-low open-drain TOVER - requires external 100kΩ pullup; supports mixed-voltage interfacing up to 5.5V. |
Pinout & Package
MAX6519UKP105+ uses a 5-pin SOT23 package (U5+2 outline, land pattern 90-0174), with thermal resistance θJA = 140°C/W and RoHS-compliant lead-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | TOVER | Open-drain, active-low overtemperature output - sinks current when T ≥ +105°C; requires external pullup. |
| 2 | GND | Digital and analog ground reference - lowest thermal resistance path to die; must be low-impedance. |
| 3 | HYST | Hysteresis select input - connect to VCC for 2°C hysteresis, GND for 10°C; no external bias required. |
| 4 | VCC | Power supply input - bypass with 0.1µF capacitor close to pin; supports 2.7V–5.5V operation. |
| 5 | OUT | Analog temperature output - voltage proportional to die temperature; drives high-Z loads up to 1000pF. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed +105°C trip | Eliminates external resistor network or digital configuration; reduces BOM count and layout complexity. |
| Pin-selectable hysteresis | Enables system-specific noise immunity tuning without firmware or additional components. |
| Analog output (OUT) | Permits in-circuit validation of sensor functionality and temperature reading without dedicated test fixtures. |
| Open-drain TOVER output | Allows wired-OR of multiple sensors (e.g., dual MAX6519s) for window alarms using one pullup resistor. |
| Low 22µA quiescent current | Supports continuous thermal monitoring in energy-constrained applications like RAID controllers and embedded servers. |
Applications
| Fan Control | Server Overtemperature Protection |
|---|---|
|
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 +105°C to trigger fan speed increase or emergency cooling sequence. Use Value: Prevents thermal throttling by initiating active cooling before critical junction temperatures are reached. |
Use Scenario: Thermal safety monitoring in 1U/2U rack-mounted servers with dense power delivery. IC Role / Device Role / Timing Role: Fail-safe overtemperature indicator driving system shutdown logic when ambient or VRM temperature exceeds +105°C. Use Value: Enables deterministic hardware-level shutdown before silicon damage occurs under cooling failure conditions. |
| RAID Controller Thermal Monitoring | Notebook Battery Pack Safety |
|
Use Scenario: Real-time temperature supervision of multi-drive storage enclosures with stacked PCBs. IC Role / Device Role / Timing Role: Analog temperature sensor switch providing both digital alarm (TOVER) and calibrated analog feedback (OUT) for thermal logging. Use Value: Supports predictive maintenance via OUT voltage trend analysis while maintaining hard +105°C trip for immediate fault response. |
Use Scenario: Secondary thermal cutoff in lithium-ion battery packs where primary protection resides in fuel gauge IC. IC Role / Device Role / Timing Role: Standalone +105°C hot-threshold detector with open-drain output interfaced to battery management system enable line. Use Value: Adds redundant overtemperature protection independent of host processor or communication bus integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6517UKP105+ | Identical pinout, same +105°C hot threshold and open-drain output, but lacks analog OUT pin - pin 1 is TOVER only (no OUT on pin 5). | No analog output capability - unsuitable for board-level calibration or temperature trending. | Select MAX6517UKP105+ only if analog monitoring is unnecessary and cost minimization is prioritized. |
| LM20BIM7X/NOPB | Analog-only temperature sensor (no digital switch output); ±2.5°C accuracy; 6.5µA supply current; SOT23-5 package. | Provides continuous temperature readout but no built-in comparator or logic output - requires external circuitry for alarm generation. | Choose LM20BIM7X/NOPB when precise analog measurement is primary need and discrete comparator implementation is acceptable. |
Compared with MAX6517UKP105+, the MAX6519UKP105+ adds analog output for testability and diagnostics; compared with LM20BIM7X/NOPB, it delivers integrated switching functionality without external components, reducing design risk and footprint in overtemperature protection circuits.
Availability
MAX6519UKP105+ is available at Aetrix Electronics and suitable for server thermal management, RAID controller protection, and notebook battery safety applications requiring stable component supply and long-term lifecycle support.
Supply support for MAX6519UKP105+ 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 markets, with emphasis on integration, reliability, and low-power operation.
The MAX6516–MAX6519 family was developed to deliver fully integrated, low-cost temperature switches with factory-trimmed thresholds and analog verification capability for thermal safety in space-constrained embedded systems.
FAQ
What is the exact temperature trip point of the MAX6519UKP105+?
The MAX6519UKP105+ has a factory-programmed hot-temperature threshold of +105°C, meaning its TOVER output transitions low when the die temperature reaches or exceeds +105°C. This value is trimmed during manufacturing and guaranteed to ±1.5°C maximum over the -15°C to +65°C range per the datasheet's electrical characteristics table.
Does the MAX6519UKP105+ require external components to operate?
No, the MAX6519UKP105+ requires no external components for basic operation: VCC needs only a 0.1µF bypass capacitor, and the open-drain TOVER output requires a single 100kΩ pullup resistor. The analog OUT pin is directly readable by an ADC without signal conditioning, and hysteresis is set solely by connecting HYST to VCC or GND.
Can the MAX6519UKP105+ be used for undertemperature detection?
No - the MAX6519UKP105+ is configured exclusively for hot-threshold (+105°C) operation. Undertemperature detection requires a cold-threshold variant such as MAX6519UKN005+ (−5°C) or MAX6519UKN045+ (−45°C); the "P" suffix in MAX6519UKP105+ explicitly denotes a positive trip temperature.
What is the function of the OUT pin on the MAX6519UKP105+?
The OUT pin on the MAX6519UKP105+ 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, calibration verification, and temperature trend monitoring without external sensors.
Is the MAX6519UKP105+ compatible with 3.3V microcontroller I/O?
Yes - the MAX6519UKP105+'s open-drain TOVER output can be pulled up to 3.3V (within its 0–5.5V rating), making it directly compatible with 3.3V logic. Its HYST input accepts standard CMOS levels (VIH = 0.8×VCC, VIL = 0.2×VCC), and the analog OUT pin outputs voltages safely within the 3.3V ADC input range.
MAX6519UKP105+ 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:
- Cold, Hot
- Switching Temperature:
- 115°C
- Accuracy:
- ±2.5°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
MAX6519UKP105+ FAQ
1.How can I place an order for MAX6519UKP105+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6519UKP105+ 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 MAX6519UKP105+ reliable?
The price and inventory of MAX6519UKP105+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6519UKP105+ is usually 5 days.
3.What payment methods are accepted for MAX6519UKP105+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6519UKP105+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6519UKP105+?
MAX6519UKP105+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6519UKP105+ 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 MAX6519UKP105+?
For technical support, including MAX6519UKP105+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6519UKP105+ requirements.
6.How does Aetrix verify that MAX6519UKP105+ is sourced from the original manufacturer or authorized distributors?
All MAX6519UKP105+ 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 MAX6519UKP105+ meets industry standards.
7.What is the process for return or replacement of MAX6519UKP105+?
All MAX6519UKP105+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6519UKP105+, 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 MAX6519UKP105+ part is unused and in its original packaging.
Return procedure for MAX6519UKP105+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6519UKP105+ Tags
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