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Analog Devices Inc./Maxim Integrated MAX6519UKP105+T
- Part No.:
- MAX6519UKP105+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6519UKP105+T.pdf
- Description:
- IC TEMP SENSOR SW SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:35,000
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Product details
Overview
MAX6519UKP105+T from Maxim Integrated is an active-low, open-drain analog temperature sensor switch with factory-programmed +105°C hot-temperature 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 overtemperature protection in fan control and server thermal management.
For engineers reviewing the MAX6519UKP105+T datasheet, MAX6519UKP105+T pinout, MAX6519UKP105+T application, or MAX6519UKP105+T equivalent, this page delivers verified functional identity, SOT23 pin mapping, analog output behavior, hysteresis configuration logic, and direct alternative part comparisons grounded in official Maxim specifications.
Technical Context
The MAX6519UKP105+T integrates a BiCMOS-based analog temperature sensor, fixed voltage reference, and comparator in a single die. Its TOVER output asserts low when die temperature exceeds +105°C, and HYST pin selects hysteresis (VCC = 2°C, GND = 10°C) to prevent oscillation near threshold.
It provides a linear analog output (OUT) ranging from 0.77V to 2.59V across -45°C to +125°C, with sensitivity of -10.62mV/°C and load regulation error ≤0.24°C under 40µA sink. The open-drain TOVER output supports pull-up to voltages up to 5.5V, independent of VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - operates across standard logic rails without external regulators. |
| Temperature Threshold | +105°C hot threshold - factory-trimmed and stable; triggers TOVER low at exact trip point. |
| Accuracy | ±1.5°C max over -15°C to +65°C - ensures reliable alarm activation within narrow thermal margins. |
| Supply Current | 22µA typical - enables always-on monitoring in battery-backed or low-power systems. |
| Hysteresis Options | 2°C (HYST = VCC) or 10°C (HYST = GND) - prevents chatter during slow thermal transients. |
| Analog Output Sensitivity | -10.62mV/°C - allows board-level temperature calibration using OUT without external ADC. |
| Output Type | Active-low open-drain TOVER - supports wired-OR with other MAX6517/MAX6519 devices for window alarms. |
Pinout & Package
MAX6519UKP105+T is housed in a 5-pin SOT23 package (U5+2 outline), with thermal performance optimized via Pin 2 (GND) as the lowest-θJA path (140°C/W typical).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | TOVER | Open-drain active-low overtemperature output - requires external 100kΩ pullup; sinks current when T ≥ +105°C. |
| 2 | GND | Ground reference and primary thermal conduction path - must be connected to large copper pour for accurate sensing. |
| 3 | HYST | Hysteresis select input - tie to VCC for 2°C hysteresis, GND for 10°C; no external pull required. |
| 4 | VCC | Power supply input - bypass with 0.1µF capacitor close to pin; >4.5V required for -45°C operation. |
| 5 | OUT | Analog temperature output - voltage proportional to die temperature (0.77V to 2.59V range); weak drive (≤40µA). |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed +105°C trip | Eliminates external resistor networks or trimming; guarantees threshold without calibration. |
| Open-drain TOVER with 5.5V-tolerant pullup | Enables level-shifting and wired-OR with other open-drain sensors - simplifies multi-threshold alarm design. |
| Analog OUT with ±2°C testability | Supports post-assembly verification of thermal circuit functionality using MCU ADC - no dedicated test equipment needed. |
| 22µA supply current | Reduces self-heating to <0.05°C error - preserves measurement fidelity in thermally isolated PCB layouts. |
| Pin-selectable hysteresis | Allows dynamic optimization: 2°C for precision control, 10°C for noisy thermal environments - no firmware or BOM change. |
Applications
| Fan Control | Server Overtemperature Protection |
|---|---|
|
Use Scenario: CPU or GPU heatsink temperature monitoring in x86 servers. IC Role / Device Role / Timing Role: Overtemperature switch asserting TOVER low at +105°C to trigger fan speed ramp or alert controller. Use Value: Prevents thermal throttling by initiating cooling before critical junction temperatures are reached - leverages 22µA quiescent current for continuous monitoring. |
Use Scenario: Redundant thermal shutdown in dual-CPU rack servers. IC Role / Device Role / Timing Role: Fail-safe hot-threshold detector with open-drain TOVER enabling wired-OR with secondary MAX6519 for fault-tolerant alarm. Use Value: Eliminates single-point failure risk - two independently powered MAX6519UKP105+T units provide ANDed shutdown signal without additional logic. |
| Notebook Thermal Management | RAID Controller Temperature Alarms |
|
Use Scenario: Battery-powered notebook chassis temperature limiting. IC Role / Device Role / Timing Role: Low-power overtemperature indicator driving EC interrupt line via TOVER, with OUT used for OS-level thermal reporting. Use Value: Dual-use analog/digital interface reduces component count - same device feeds both hardware shutdown and software telemetry paths. |
Use Scenario: Hot-swap bay temperature supervision in enterprise RAID enclosures. IC Role / Device Role / Timing Role: Standalone +105°C trip sensor monitoring drive backplane ambient, with TOVER sinking into FPGA GPIO. Use Value: 5-pin SOT23 footprint minimizes PCB area on dense backplanes - 1000pF capacitive load tolerance ensures robustness across long traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6517UKP105+T | Same +105°C hot threshold, open-drain TOVER, and SOT23 package - but lacks analog OUT pin (Pin 1 = TOVER only; no Pin 5 OUT). | Used where only digital alarm is needed; cannot support board-level analog testing or dual-path thermal reporting. | Select MAX6519UKP105+T when analog output for calibration or diagnostics is required; choose MAX6517UKP105+T to reduce cost if OUT is unused. |
| LM75BIMM-3/NOPB | I²C digital output only; no analog voltage output or open-drain overtemperature pin; ±2°C accuracy; 10-bit temperature register. | Requires microcontroller I²C interface and firmware polling - unsuitable for hardware-only shutdown paths. | Choose MAX6519UKP105+T for immediate, zero-latency hardware trip; LM75BIMM-3/NOPB fits when system already uses I²C and needs multi-zone readings. |
Compared with MAX6517UKP105+T, MAX6519UKP105+T adds diagnostic capability via OUT while retaining identical trip behavior and footprint; versus LM75BIMM-3/NOPB, it delivers deterministic hardware response without software dependency or bus arbitration delays.
Availability
MAX6519UKP105+T is available at Aetrix Electronics and suitable for fan control, server overtemperature protection, notebook thermal management, and RAID controller temperature alarms requiring stable component supply and RoHS-compliant packaging.
Supply support for MAX6519UKP105+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 systems.
The MAX6516–MAX6519 family delivers integrated temperature switches with analog output and configurable hysteresis - engineered specifically for cost-sensitive, space-constrained thermal protection in computing and storage platforms.
FAQ
What is the exact temperature trip point of the MAX6519UKP105+T?
The MAX6519UKP105+T has a factory-programmed hot-temperature threshold of +105°C, with ±1.5°C maximum accuracy over the -15°C to +65°C range and ±3°C over -45°C to -25°C. This trip point is laser-trimmed during manufacturing and does not require external calibration. The device asserts its open-drain TOVER output low when die temperature reaches or exceeds +105°C.
Does the MAX6519UKP105+T provide an analog output, and how is it used?
Yes, the MAX6519UKP105+T provides an analog output (Pin 5, OUT) proportional to die temperature, ranging from 0.77V at -45°C to 2.59V at +125°C, with nominal sensitivity of -10.62mV/°C. This output enables board-level functional testing without external instruments - engineers can measure OUT with an MCU ADC to verify correct assembly and thermal response before relying on the TOVER alarm path.
How is hysteresis configured on the MAX6519UKP105+T?
Hysteresis on the MAX6519UKP105+T is set via the HYST pin (Pin 3): connect to VCC for 2°C hysteresis or to GND for 10°C hysteresis. This pin-strapping method eliminates firmware dependencies and ensures stable switching behavior during slow thermal ramps. The selected hysteresis value directly defines the temperature gap between turn-on and turn-off points of the TOVER output.
What is the recommended pullup resistor value for the TOVER output of the MAX6519UKP105+T?
The datasheet specifies a 100kΩ pullup resistor for the TOVER output (Pin 1) of the MAX6519UKP105+T. This value ensures proper logic high level (>0.8×VCC) while limiting sink current to <50µA at 5.5V - maintaining low power consumption and compatibility with 3.3V or 5V host interfaces. Higher values increase noise susceptibility; lower values raise supply current unnecessarily.
Can the MAX6519UKP105+T operate down to -45°C, and what supply voltage is required?
The MAX6519UKP105+T supports operation from -55°C to +125°C, but full specification down to -45°C requires VCC > 4.5V. At lower supply voltages (2.7V–4.5V), the guaranteed operating range is -35°C to +125°C. This constraint applies only to cold-threshold variants; the +105°C trip point of MAX6519UKP105+T remains fully functional across the full 2.7V–5.5V supply range.
MAX6519UKP105+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Trip Temperature Threshold:
- Hot
- Switching Temperature:
- 105°C
- Accuracy:
- ±2.5°C
- Current - Output (Max):
- -
- Output Type:
- Open Drain
- Output:
- Active Low
- Output Function:
- /OverTemp
- Selectable Hysteresis:
- Yes
- Features:
- -
- 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+T FAQ
1.How can I place an order for MAX6519UKP105+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6519UKP105+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 MAX6519UKP105+T reliable?
The price and inventory of MAX6519UKP105+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6519UKP105+T is usually 5 days.
3.What payment methods are accepted for MAX6519UKP105+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6519UKP105+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6519UKP105+T?
MAX6519UKP105+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6519UKP105+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 MAX6519UKP105+T?
For technical support, including MAX6519UKP105+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6519UKP105+T requirements.
6.How does Aetrix verify that MAX6519UKP105+T is sourced from the original manufacturer or authorized distributors?
All MAX6519UKP105+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 MAX6519UKP105+T meets industry standards.
7.What is the process for return or replacement of MAX6519UKP105+T?
All MAX6519UKP105+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6519UKP105+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 MAX6519UKP105+T part is unused and in its original packaging.
Return procedure for MAX6519UKP105+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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