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Analog Devices Inc./Maxim Integrated MAX6502UKP085+T
- Part No.:
- MAX6502UKP085+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6502UKP085+T.pdf
- Description:
- THERMOSTAT 85DEGC ACT HI SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,826
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Product details
Overview
MAX6502UKP085+T from Maxim Integrated is a factory-programmed, hot-temperature-threshold silicon temperature switch with active-high push-pull output, +85°C trip point, ±0.5°C typical threshold accuracy, 30µA supply current, and pin-selectable 2°C/10°C hysteresis - used for overtemperature fan control in embedded power systems.
For engineers reviewing the MAX6502UKP085+T datasheet, MAX6502UKP085+T pinout, MAX6502UKP085+T application, or MAX6502UKP085+T equivalent, this page delivers verified functional identity, SOT23-5 package mapping, confirmed thermal trip behavior, output drive capability, and validated alternative options for thermal monitoring designs.
Technical Context
The MAX6502UKP085+T integrates two on-die temperature-dependent voltage references (one positive, one negative TC) and a comparator to define its +85°C trip point. Its internal power-on reset ensures stable output state for 50µs at startup.
Hysteresis is selected via the HYST pin: grounded for 2°C, tied to VCC for 10°C - preventing output oscillation near threshold. The push-pull output sources up to 800µA and sinks up to 3.2mA, enabling direct interface with fan-control logic without external pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Temperature Threshold | +85°C factory-trimmed trip point - asserts high when die temperature exceeds +85°C. |
| Threshold Accuracy | ±0.5°C (typ), ±6°C (max) - 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 - supports always-on thermal monitoring in battery-backed or low-power applications. |
| Output Type | Active-high push-pull - drives fan enable inputs directly; no external pull-up required. |
| Hysteresis Options | 2°C (HYST = GND) or 10°C (HYST = VCC) - configurable noise immunity for varying thermal ramp rates. |
| Operating Temp Range | -55°C to +135°C - supports deployment in extended-temperature industrial and automotive environments. |
Pinout & Package
SOT23-5 package with exposed pad (no thermal pad connection specified); 5-pin surface-mount outline optimized for minimal PCB footprint and low thermal resistance - Pin 2 provides lowest θJA path to die.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 GND | Ground reference | Both pins must be connected to system ground; Pin 2 offers lowest thermal resistance to die for accurate sensing. |
| 3 HYST | Hysteresis select input | CMOS-compatible; tie to GND for 2°C hysteresis, to VCC for 10°C - floating not allowed. |
| 4 VCC | Positive supply input | +2.7V to +5.5V power rail; powers internal references, comparator, and output stage. |
| 5 TOVER | Active-high push-pull output | Drives high when TDIE > +85°C; sources 800µA / sinks 3.2mA - directly interfaces fan control logic. |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Fully integrated reference, comparator, and output driver - eliminates BOM count and layout complexity. |
| ±0.5°C typical threshold accuracy | Enables tight thermal guardbanding in safety-critical systems without post-production trimming. |
| Pin-selectable hysteresis | 2°C or 10°C selection via single HYST pin - adapts to thermal transient profiles without firmware or resistor changes. |
| 30µA supply current | Supports continuous monitoring in energy-constrained systems such as remote sensors or backup power modules. |
| Push-pull output architecture | Eliminates need for external pull-up resistors and reduces fan-control latency versus open-drain alternatives. |
Applications
| Microprocessor Overtemperature Protection | Fan Speed Control in Power Supplies |
|---|---|
Use Scenario: Monitors CPU or FPGA junction temperature during high-load operation to prevent thermal throttling or damage. IC Role / Device Role / Timing Role: Temperature switch asserting active-high signal when die temperature exceeds +85°C. Use Value: Enables immediate fan activation before critical thermal limits are breached - leverages 30µA quiescent current for always-on readiness. |
Use Scenario: Controls cooling fans in AC/DC or DC/DC power converters based on heatsink or MOSFET temperature. IC Role / Device Role / Timing Role: Direct-drive thermal trigger for fan enable input; push-pull output avoids timing delays from RC pull-up networks. Use Value: Reduces system response time by eliminating external components - 2°C hysteresis prevents fan chatter during thermal transients. |
| Industrial Motor Drive Thermal Monitoring | Medical Equipment Temperature Safeguard |
Use Scenario: Detects overheating in IGBT gate drivers or motor windings in variable-frequency drives. IC Role / Device Role / Timing Role: Hot-threshold switch interfacing with PLC or safety controller via discrete input. Use Value: -55°C to +135°C operating range ensures reliability in harsh ambient conditions; ±0.5°C accuracy supports predictive maintenance thresholds. |
Use Scenario: Provides fail-safe thermal cutoff in imaging or diagnostic equipment where component self-heating must remain below clinical limits. IC Role / Device Role / Timing Role: Standalone overtemperature detector with deterministic +85°C trip and 50µs POR stabilization. Use Value: Push-pull output guarantees clean logic-level assertion to shutdown sequencers - no risk of floating or weak pull-up states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM75BIMM/NOPB | I²C digital output; ±2°C accuracy; requires microcontroller interface and software polling. | Used where programmable thresholds or multi-sensor bus integration is needed - not suitable for direct hardware-triggered fan control. | Select when system already uses I²C infrastructure and needs configurable trip points; avoid when deterministic, zero-latency response is required. |
| TS331IDBVR | Comparator-based solution requiring external thermistor and reference; ±1°C accuracy after calibration. | Offers design flexibility for custom thresholds but increases BOM, layout area, and calibration effort. | Choose only if nonstandard trip points (e.g., +87.3°C) are mandatory and cost-per-unit allows added components and validation. |
Compared with LM75BIMM/NOPB and TS331IDBVR, the MAX6502UKP085+T delivers guaranteed +85°C trip with no software, no external components, and sub-millisecond response - making it optimal for hardware-based thermal safety interlocks.
Availability
MAX6502UKP085+T is available at Aetrix Electronics and suitable for microprocessor thermal monitoring, fan control in power supplies, industrial motor drive protection, and medical equipment safeguards requiring stable component supply across long production lifecycles.
Supply support for MAX6502UKP085+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 applications.
The MAX6501–MAX6504 family was engineered as low-cost, micropower thermal switches for hardware-triggered overtemperature protection - targeting applications where simplicity, reliability, and zero-software dependency are critical.
FAQ
What is the exact temperature trip point of the MAX6502UKP085+T?
The MAX6502UKP085+T has a factory-programmed hot-temperature threshold of +85°C. It asserts its active-high push-pull output when the die temperature exceeds this point. Accuracy is ±0.5°C (typical) and ±6°C (maximum) across the full operating temperature range, as specified in the official Maxim datasheet Rev 6.
Does the MAX6502UKP085+T require external components to operate?
No, the MAX6502UKP085+T requires no external components. It integrates dual temperature-dependent references, a comparator, hysteresis control circuitry, and a push-pull output driver. Unlike open-drain variants (e.g., MAX6501), it does not need a pull-up resistor - simplifying layout and reducing BOM count.
How is hysteresis configured on the MAX6502UKP085+T?
Hysteresis on the MAX6502UKP085+T is set via the HYST pin: connect HYST to GND for 2°C hysteresis or to VCC for 10°C hysteresis. The pin is CMOS-compatible and must not be left floating, as intermediate voltages increase supply current. The actual hysteresis value also depends on the programmed trip point, per Figure 8 in the datasheet.
What is the output drive capability of the MAX6502UKP085+T?
The MAX6502UKP085+T features an active-high push-pull output capable of sourcing 800µA (VOH ≥ VCC – 1.5V at VCC > 4.5V) and sinking 3.2mA (VOL ≤ 0.4V at VCC > 4.5V). This allows direct driving of fan-enable inputs, logic gates, or optocouplers without level-shifting or buffering circuitry.
Is the MAX6502UKP085+T RoHS-compliant and lead-free?
Yes, the "+T" suffix in MAX6502UKP085+T denotes a lead(Pb)-free and RoHS-compliant package. The device uses a standard SOT23-5 outline with matte tin lead finish, qualified per JEDEC J-STD-020 moisture sensitivity level 1, and rated for reflow up to +260°C.
MAX6502UKP085+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Trip Temperature Threshold:
- Hot
- Switching Temperature:
- 85°C
- Accuracy:
- ±6°C
- Current - Output (Max):
- 20mA
- Output Type:
- Push-Pull
- Output:
- Active High
- Output Function:
- OverTemp
- Selectable Hysteresis:
- Yes
- Features:
- -
- Voltage - Supply:
- 2.7 V ~ 5.5 V
- Current - Supply:
- 30µA
- Operating Temperature:
- -55°C ~ 135°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-5
MAX6502UKP085+T FAQ
1.How can I place an order for MAX6502UKP085+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6502UKP085+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 MAX6502UKP085+T reliable?
The price and inventory of MAX6502UKP085+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6502UKP085+T is usually 5 days.
3.What payment methods are accepted for MAX6502UKP085+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6502UKP085+T transactions.
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4.How is shipping managed for MAX6502UKP085+T?
MAX6502UKP085+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6502UKP085+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 MAX6502UKP085+T?
For technical support, including MAX6502UKP085+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6502UKP085+T requirements.
6.How does Aetrix verify that MAX6502UKP085+T is sourced from the original manufacturer or authorized distributors?
All MAX6502UKP085+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 MAX6502UKP085+T meets industry standards.
7.What is the process for return or replacement of MAX6502UKP085+T?
All MAX6502UKP085+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6502UKP085+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 MAX6502UKP085+T part is unused and in its original packaging.
Return procedure for MAX6502UKP085+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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