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Analog Devices Inc./Maxim Integrated MAX6501UKP055
- Part No.:
- MAX6501UKP055
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6501UKP055.pdf
- Description:
- MICROPOWER TEMPERATURE SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:507
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Product details
Overview
MAX6501UKP055 from Maxim Integrated is a factory-programmed, hot-temperature threshold micropower temperature switch in SOT23-5 package, asserting an active-low open-drain output when die temperature exceeds +55°C with ±0.5°C typical accuracy, 30µA supply current, and pin-selectable 2°C/10°C hysteresis - used for microprocessor reset and thermal alarm in embedded computing systems.
For engineers reviewing the MAX6501UKP055 datasheet, MAX6501UKP055 pinout, MAX6501UKP055 application, or MAX6501UKP055 equivalent, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, confirmed alternative parts, and supply-chain support details specific to this exact temperature trip point and output configuration.
Technical Context
The MAX6501UKP055 integrates two on-die temperature-dependent voltage references (one positive TC, one negative TC) whose intersection defines the +55°C trip point; internal comparator drives an open-drain output without external components. Hysteresis is set by HYST pin logic level (GND = 2°C, VCC = 10°C), preventing oscillation near threshold.
It operates from +2.7V to +5.5V, consumes 30µA typical supply current across -55°C to +125°C ambient range, and features internal power-on reset guaranteeing defined output state for 50µs at startup. Output is compatible with µP reset inputs via 100kΩ pull-up and supports over-VCC pull-up voltages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Temperature Threshold | +55°C factory-trimmed hot-trip point; asserts output when die temperature exceeds this value. |
| Threshold Accuracy | ±0.5°C typical over full operating range; enables precise thermal event triggering without calibration. |
| Supply Voltage Range | +2.7V to +5.5V; compatible with 3.3V and 5V logic rails in industrial and computing systems. |
| Supply Current | 30µA typical; allows battery-backed or low-power monitoring without significant system load. |
| Hysteresis Options | 2°C (HYST = GND) or 10°C (HYST = VCC); prevents chatter during slow thermal transitions. |
| Output Type | Active-low open-drain; sinks up to 1.2mA, requires external pull-up for µP reset interface. |
| Package | SOT23-5; compact footprint with Pin 2 providing lowest thermal resistance to die for accurate sensing. |
Pinout & Package
SOT23-5 package with exposed pad not electrically connected; Pin 2 provides lowest thermal resistance path to die for optimal temperature tracking. Device requires no external components beyond pull-up resistor on TOVER.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 GND | Ground reference | Both pins must be connected together near chip; Pin 2 is thermally optimized for die-to-PCB heat transfer. |
| 3 HYST | Hysteresis select input | CMOS-compatible logic input: GND selects 2°C hysteresis, VCC selects 10°C; must not float. |
| 4 VCC | Positive supply | +2.7V to +5.5V power rail; powers internal references, comparator, and output stage. |
| 5 TOVER | Active-low open-drain output | Sinks current when TDIE > +55°C; requires external pull-up (e.g., 100kΩ) to VCC or higher voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed +55°C threshold | Eliminates need for external calibration or trimming components in production thermal monitoring. |
| ±0.5°C typical accuracy | Ensures consistent trip behavior across temperature and unit variation for reliable system-level alarms. |
| 30µA supply current | Enables continuous monitoring in always-on subsystems without compromising battery life or power budget. |
| Pin-selectable hysteresis | Allows dynamic trade-off between noise immunity (10°C) and tight thermal control window (2°C). |
| Open-drain output with over-VCC capability | Permits direct interfacing to µP reset inputs powered by different rails (e.g., 3.3V device driving 5V reset line). |
Applications
| Microprocessor Thermal Reset | Fan Control Enable |
|---|---|
Use Scenario: Monitoring CPU die temperature in high-speed embedded computers to prevent thermal runaway. IC Role / Device Role / Timing Role: Temperature switch providing active-low reset signal to µP when local temperature exceeds +55°C. Use Value: Prevents system lockup or data corruption by forcing controlled restart before critical junction temperatures are reached. |
Use Scenario: Activating cooling fans when board-level temperature crosses safe operating limit. IC Role / Device Role / Timing Role: Hot-temperature threshold detector enabling fan driver circuitry upon sustained +55°C condition. Use Value: Extends component lifetime and maintains performance stability by initiating cooling before thermal throttling occurs. |
| Industrial Equipment Alarm | Power Supply Overtemperature Protection |
Use Scenario: Detecting abnormal heating in motor drives or PLC modules during operation. IC Role / Device Role / Timing Role: Standalone thermal alarm generator asserting fault signal to controller I/O when enclosure temperature exceeds +55°C. Use Value: Enables early warning and graceful shutdown before insulation degradation or safety-critical failure. |
Use Scenario: Monitoring heatsink temperature adjacent to DC-DC converter or LDO regulator. IC Role / Device Role / Timing Role: Overtemperature cutoff trigger disabling power stage or asserting fault flag when local hotspot reaches +55°C. Use Value: Prevents thermal stress-induced parameter drift or catastrophic failure in regulated power circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6501UKP065+T | +65°C trip threshold; identical package, pinout, and electrical specs except threshold. | Triggers later in thermal profile; suitable where wider margin before intervention is required. | Select when system thermal budget allows higher trip point and timing delay before action. |
| MAX6503UKP055+T | Cold-trip variant with same +55°C magnitude but inverted logic: asserts below +55°C instead of above. | Used for low-temperature detection (e.g., freeze protection), not overtemperature monitoring. | Choose only for under-temperature alarm scenarios; not functionally interchangeable with MAX6501UKP055. |
Compared with MAX6501UKP055, MAX6501UKP065+T offers delayed thermal response for less aggressive intervention, while MAX6503UKP055+T serves inverse temperature monitoring needs - neither is pin-compatible for hot-trip replacement without circuit redesign.
Availability
MAX6501UKP055 is available at Aetrix Electronics and suitable for microprocessor thermal reset, industrial equipment alarms, and power supply overtemperature protection requiring stable component supply and guaranteed +55°C trip accuracy.
Supply support for MAX6501UKP055 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 power, sensing, and interface applications with emphasis on integration and reliability.
The MAX6501–MAX6504 family delivers fully integrated, low-cost temperature switches targeting thermal management in space-constrained, low-power embedded systems - specifically engineered for direct µP interface and minimal bill-of-materials.
FAQ
What is the exact temperature trip point of the MAX6501UKP055?
The MAX6501UKP055 has a factory-programmed hot-temperature trip threshold of +55°C, meaning its TOVER output goes low when the die temperature exceeds +55°C. This value is trimmed during manufacturing and specified with ±0.5°C typical accuracy over the full operating temperature range from -55°C to +125°C. The "P055" suffix explicitly denotes the +55°C trip point.
Does the MAX6501UKP055 require external components to operate?
No, the MAX6501UKP055 requires no external components for core functionality. It integrates both temperature-dependent voltage references and a comparator on-die. Only an external pull-up resistor (typically 100kΩ) on the TOVER pin is needed to interface with a microprocessor reset input. No capacitors, resistors, or trimming networks are necessary for basic operation.
How is hysteresis selected on the MAX6501UKP055?
Hysteresis on the MAX6501UKP055 is selected via the HYST pin: connecting HYST to GND configures 2°C hysteresis, while connecting HYST to VCC configures 10°C hysteresis. This pin must not be left floating, as undefined logic levels increase supply current. The actual hysteresis value also depends on the programmed trip point, as confirmed in the device's Typical Operating Characteristics graph.
Can the MAX6501UKP055 output drive a microprocessor reset input directly?
Yes, the MAX6501UKP055's active-low open-drain TOVER output is designed specifically for microprocessor reset interfaces. When used with a pull-up resistor (e.g., 100kΩ to VCC or another logic rail), it asserts a clean low-level signal to the µP's reset pin upon exceeding +55°C. Its 1.2mA sink capability ensures compatibility with standard CMOS reset inputs across voltage domains.
What is the supply current consumption of the MAX6501UKP055 across temperature?
The MAX6501UKP055 consumes 30µA typical supply current over its full operating temperature range (-55°C to +125°C) and supply voltage range (+2.7V to +5.5V). This value remains stable with temperature - as shown in the "Supply Current vs. Temperature" plot - making it suitable for always-on thermal monitoring in battery-powered or energy-sensitive applications without impacting system power budget.
MAX6501UKP055 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:
- 55°C
- Accuracy:
- ±4°C
- Current - Output (Max):
- 20mA
- Output Type:
- Open Drain
- Output:
- Active Low
- Output Function:
- /OverTemp
- Selectable Hysteresis:
- Yes
- Features:
- Selectable Hysteresis
- Voltage - Supply:
- 2.7 V ~ 5.5 V
- Current - Supply:
- 30µA
- Operating Temperature:
- -55°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-5
MAX6501UKP055 FAQ
1.How can I place an order for MAX6501UKP055 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6501UKP055 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 MAX6501UKP055 reliable?
The price and inventory of MAX6501UKP055 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6501UKP055 is usually 5 days.
3.What payment methods are accepted for MAX6501UKP055?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6501UKP055 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6501UKP055?
MAX6501UKP055 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6501UKP055 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 MAX6501UKP055?
For technical support, including MAX6501UKP055 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6501UKP055 requirements.
6.How does Aetrix verify that MAX6501UKP055 is sourced from the original manufacturer or authorized distributors?
All MAX6501UKP055 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 MAX6501UKP055 meets industry standards.
7.What is the process for return or replacement of MAX6501UKP055?
All MAX6501UKP055 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6501UKP055, 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 MAX6501UKP055 part is unused and in its original packaging.
Return procedure for MAX6501UKP055:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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