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Analog Devices Inc./Maxim Integrated MAX6502UKP075
- Part No.:
- MAX6502UKP075
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6502UKP075.pdf
- Description:
- MICROPOWER TEMPERATURE SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:5,199
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Product details
Overview
MAX6502UKP075 from Maxim Integrated is a factory-programmed, push-pull output temperature switch with +75°C hot-trip threshold, operating from +2.7V to +5.5V, consuming 30µA typical supply current, featuring ±0.5°C typical threshold accuracy and pin-selectable 2°C or 10°C hysteresis, used for fan-control logic in embedded thermal management systems.
For engineers reviewing the MAX6502UKP075 datasheet, MAX6502UKP075 pinout, MAX6502UKP075 application, or MAX6502UKP075 equivalent, this page delivers verified functional identity, SOT23-5 package mapping, confirmed push-pull output behavior, hysteresis configuration logic, and direct thermal alarm use cases without external components.
Technical Context
The MAX6502UKP075 integrates two on-die temperature-dependent voltage references (one positive, one negative TC) and a comparator to determine trip point at +75°C. Its internal power-on reset ensures defined output state for 50µs at startup.
Hysteresis selection is implemented via CMOS-compatible HYST pin: grounded for 2°C, tied to VCC for 10°C - preventing oscillation near threshold. The push-pull output sources up to 800µA and sinks up to 3.2mA, enabling direct drive of fan-enable inputs without pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +5.5V - supports single-supply operation across common logic rails including 3.3V and 5V systems. |
| Temperature Threshold | +75°C - factory-trimmed hot-trip point, asserting high when die temperature exceeds +75°C. |
| Threshold Accuracy | ±0.5°C (typ), ±6°C (max) - enables precise thermal triggering without calibration in industrial and computing environments. |
| Supply Current | 30µA (typ) - ultra-low quiescent current allows battery-backed or energy-constrained thermal monitoring. |
| Hysteresis Options | 2°C (HYST = GND) or 10°C (HYST = VCC) - user-configurable to prevent chatter during slow thermal transients. |
| Output Type | Active-high push-pull - eliminates need for external pull-up; drives fan control logic directly with VOH ≥ VCC − 1.5V at 800µA. |
| Operating Temp Range | −55°C to +125°C - qualified for extended industrial and automotive under-hood applications. |
Pinout & Package
SOT23-5 package with exposed thermal pad (pin 2 connected to die substrate); dual ground pins (1 and 2) provide lowest thermal resistance path; compact 2.9mm × 1.6mm footprint suitable for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 GND | Dual ground terminals | Internally unconnected; both must be soldered to common ground plane - pin 2 provides lowest θJA (140°C/W typical) for accurate die temperature tracking. |
| 3 HYST | Hysteresis select input | CMOS-compatible control: logic low → 2°C hysteresis; logic high → 10°C hysteresis; must not float. |
| 4 VCC | Positive supply input | Accepts +2.7V to +5.5V; powers internal references, comparator, and output stage. |
| 5 TOVER | Active-high push-pull output | Drives high when die temperature > +75°C; sources 800µA (VOH ≥ VCC − 1.5V) and sinks 3.2mA (VOL ≤ 0.4V). |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed +75°C threshold | Eliminates external calibration; guarantees trip point within ±0.5°C typical across full operating range. |
| Push-pull output architecture | Directly interfaces with fan-enable inputs or logic gates without pull-up resistors or level-shifting circuitry. |
| Pin-selectable hysteresis | Enables system-level optimization: 2°C for tight thermal control, 10°C for noisy or slowly varying thermal environments. |
| 30µA typical supply current | Reduces self-heating (<0.05°C error) and extends battery life in portable or always-on thermal monitors. |
| No external components required | Reduces BOM count, PCB area, and qualification effort - fully functional with only VCC, GND, and HYST connections. |
Applications
| Fan Control in Embedded Systems | Microprocessor Thermal Reset |
|---|---|
Use Scenario: Monitoring CPU or FPGA junction temperature in industrial controllers to activate cooling before thermal throttling occurs. IC Role / Device Role / Timing Role: Temperature switch asserting active-high signal at +75°C to enable 12V DC fan via MOSFET gate driver. Use Value: Prevents sustained >+85°C operation by initiating airflow 10°C before critical limit, leveraging 2°C hysteresis to avoid fan cycling. |
Use Scenario: Detecting overheating in ARM-based edge AI modules where thermal runaway could corrupt memory or cause lockup. IC Role / Device Role / Timing Role: Hot-trip sensor feeding OR-gate with watchdog timer to force controlled system reset if die exceeds +75°C. Use Value: Enables fail-safe shutdown without software intervention, using guaranteed 50µs POR output stability and ±0.5°C trip precision. |
| Temperature Window Alarm | Fail-Safe Dual-Stage Thermal Protection |
Use Scenario: Building over/undertemperature alarm for power supply modules requiring operation between −5°C and +75°C. IC Role / Device Role / Timing Role: Paired with MAX6504UKN005 (−5°C cold-trip) - outputs wire-OR'd to generate out-of-range flag. Use Value: Achieves window detection with zero external logic; push-pull output of MAX6502UKP075 avoids pull-up conflicts in wired-OR configuration. |
Use Scenario: Protecting motor drive inverters where short-circuit faults cause rapid temperature rise beyond safe limits. IC Role / Device Role / Timing Role: Primary thermal monitor (MAX6502UKP075) triggers fan at +75°C; secondary (MAX6502UKP105) asserts shutdown at +105°C. Use Value: Provides layered protection: first stage mitigates risk, second stage prevents catastrophic failure - both use identical SOT23-5 layout and push-pull drive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM26CIM5-75/NOPB | Fixed +75°C trip, open-drain output, 1.6V–5.5V supply, ±1.5°C accuracy, no hysteresis selection. | Requires external pull-up; less accurate; unsuitable for direct fan drive without buffer. | Select when cost sensitivity outweighs accuracy and output drive requirements. |
| TC74A7-75IAT | I²C digital output, ±2°C accuracy, 2.7V–5.5V, 200µA supply, programmable hysteresis via register. | Requires MCU interface and firmware support; adds latency; not a drop-in replacement. | Select when system already uses I²C bus and needs configurable thresholds or logging capability. |
Compared with LM26CIM5-75/NOPB and TC74A7-75IAT, the MAX6502UKP075 offers superior threshold accuracy (±0.5°C vs. ±1.5°C/±2°C), integrated push-pull drive eliminating external components, and hardware-selectable hysteresis - making it optimal for deterministic, low-latency thermal control in resource-constrained designs.
Availability
MAX6502UKP075 is available at Aetrix Electronics and suitable for fan control, microprocessor thermal reset, temperature window alarms, and fail-safe dual-stage thermal protection requiring stable component supply and long-term industrial lifecycle support.
Supply support for MAX6502UKP075 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 applications.
The MAX6501–MAX6504 family delivers micropower, fully integrated temperature switches targeting cost-sensitive thermal monitoring where simplicity, accuracy, and direct logic interfacing are critical - especially in fan control and µP reset functions.
FAQ
What is the exact temperature trip point of the MAX6502UKP075?
The MAX6502UKP075 has a factory-programmed hot-trip threshold of +75°C, meaning its TOVER output transitions high when the die temperature exceeds +75°C. This value is trimmed during manufacturing and specified with ±0.5°C typical accuracy across the full −55°C to +125°C operating range, as confirmed in the device's Electrical Characteristics table and Selector Guide.
Does the MAX6502UKP075 require external components to operate?
No, the MAX6502UKP075 requires no external components for basic operation. It functions with only VCC, GND (pins 1 and 2), HYST (configured to GND or VCC), and the load connected to TOVER. Unlike open-drain variants, its push-pull output eliminates the need for a pull-up resistor, simplifying design and reducing BOM count.
How is hysteresis configured on the MAX6502UKP075?
Hysteresis on the MAX6502UKP075 is set via the HYST pin: connecting HYST to GND selects 2°C hysteresis, while connecting it to VCC selects 10°C hysteresis. This pin must not be left floating, as intermediate voltages increase supply current. The selected hysteresis value prevents output oscillation during slow thermal transitions near the +75°C trip point.
What is the output drive capability of the MAX6502UKP075?
The MAX6502UKP075 features a push-pull output capable of sourcing 800µA (with VOH ≥ VCC − 1.5V) and sinking 3.2mA (with VOL ≤ 0.4V) at VCC > 4.5V. This allows direct driving of fan-enable inputs, logic gates, or optocoupler LEDs without additional buffering, distinguishing it from open-drain alternatives like the MAX6501 series.
Is the MAX6502UKP075 RoHS-compliant and lead-free?
Yes, the MAX6502UKP075 is RoHS-compliant and lead(Pb)-free, indicated by the "+" suffix in its package code (UKP075+T). This matches Maxim's revision history update in February 2011, which converted all leaded parts to lead-free versions, and is verified in the official Ordering Information table and Package Information section of the datasheet.
MAX6502UKP075 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:
- 75°C
- Accuracy:
- ±6°C
- Current - Output (Max):
- 20mA
- Output Type:
- Push-Pull
- Output:
- Active High
- 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
MAX6502UKP075 FAQ
1.How can I place an order for MAX6502UKP075 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6502UKP075 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 MAX6502UKP075 reliable?
The price and inventory of MAX6502UKP075 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6502UKP075 is usually 5 days.
3.What payment methods are accepted for MAX6502UKP075?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6502UKP075 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6502UKP075?
MAX6502UKP075 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6502UKP075 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 MAX6502UKP075?
For technical support, including MAX6502UKP075 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6502UKP075 requirements.
6.How does Aetrix verify that MAX6502UKP075 is sourced from the original manufacturer or authorized distributors?
All MAX6502UKP075 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 MAX6502UKP075 meets industry standards.
7.What is the process for return or replacement of MAX6502UKP075?
All MAX6502UKP075 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6502UKP075, 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 MAX6502UKP075 part is unused and in its original packaging.
Return procedure for MAX6502UKP075:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6502UKP075 Tags
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