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Analog Devices Inc./Maxim Integrated MAX6502CMP065
- Part No.:
- MAX6502CMP065
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- TO-220-7
- Datasheet:
-
MAX6502CMP065.pdf
- Description:
- MICROPOWER TEMPERATURE SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,106
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Product details
Overview
MAX6502CMP065 from Maxim Integrated is a factory-programmed, hot-temperature-threshold silicon temperature switch with active-high push-pull output, +65°C trip point, ±0.5°C typical threshold accuracy, 30µA supply current, and pin-selectable +2°C or +10°C hysteresis. It operates from +2.7V to +5.5V and is used for overtemperature fan control in power supplies and embedded systems.
For engineers reviewing the MAX6502CMP065 datasheet, MAX6502CMP065 pinout, MAX6502CMP065 application, or MAX6502CMP065 equivalent, this device serves as a self-contained thermal monitor requiring no external components-ideal for space-constrained, low-power thermal management where precise die-temperature assertion and direct logic-level drive are required.
Technical Context
The MAX6502CMP065 integrates two on-chip temperature-dependent voltage references (one positive, one negative TC) whose intersection defines the +65°C trip point. Its internal comparator drives a push-pull output stage capable of sourcing 500µA and sinking 1.2mA at VCC > 2.7V.
Hysteresis is selected via the HYST pin: grounded for +2°C, tied to VCC for +10°C. The device features an internal power-on reset that holds the output stable for 50µs at startup, ensuring reliable initialization without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +5.5V - supports wide-input industrial and battery-backed systems |
| Temperature Threshold | +65°C - factory-trimmed hot-trip point for overtemperature detection |
| Threshold Accuracy | ±0.5°C (typ), ±6°C (max) - enables precise thermal margining in critical applications |
| Supply Current | 30µA (typ) - ultra-low quiescent power for always-on monitoring |
| Output Type | Active-high push-pull - directly drives fan enable logic or FPGA I/O without pull-up resistor |
| Hysteresis Options | +2°C (HYST = GND) or +10°C (HYST = VCC) - prevents output oscillation near trip point |
| Operating Temp Range | −55°C to +135°C - qualified for extended industrial and automotive under-hood environments |
Pinout & Package
MAX6502CMP065 is housed in a 7-pin TO-220-7 package with exposed tab for enhanced thermal conduction to heatsinks. Pin 2 is dedicated GND with lowest thermal resistance to die.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | GND | Dual ground terminals; both must be connected to system ground near device - Pin 2 provides minimal thermal resistance path to die |
| 3 | HYST | CMOS-compatible hysteresis select input: GND → +2°C, VCC → +10°C - must not float |
| 4 | VCC | Positive supply input (+2.7V to +5.5V); decoupling capacitor recommended at pin |
| 5 | TOVER | Active-high push-pull output - asserts high when die temperature exceeds +65°C; sinks 1.2mA / sources 500µA |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed +65°C trip point | Eliminates calibration effort and external sensor components - ready-to-deploy thermal assertion |
| Push-pull output stage | Drives logic inputs directly without external pull-up; reduces BOM count and layout area |
| Pin-selectable hysteresis | Enables system-level noise immunity tuning without redesign - selectable +2°C or +10°C via single trace |
| 30µA supply current | Minimizes self-heating (<0.05°C error) and extends battery life in portable or standby systems |
| TO-220-7 thermal performance | θJA = 75°C/W - enables direct heatsink mounting for accurate ambient-adjacent temperature sensing |
Applications
| Power Supply Thermal Protection | Fan Speed Control in Embedded Systems |
|---|---|
Use Scenario: Monitors MOSFET or transformer temperature in DC/DC converters to prevent thermal runaway during overload. IC Role / Device Role / Timing Role: Die-temperature switch asserting +65°C overtemp event to disable PWM controller or trigger shutdown sequence. Use Value: Prevents irreversible component damage by initiating protective action before junction temperatures exceed safe limits. |
Use Scenario: Controls cooling fan activation in network routers based on processor heatsink temperature. IC Role / Device Role / Timing Role: Hot-threshold temperature switch driving fan-enable input with clean, glitch-free push-pull output. Use Value: Enables immediate fan start at +65°C with no external biasing, reducing thermal stress on SoC during sustained load. |
| Industrial Motor Drive Overheat Detection | Medical Power Module Safety Monitoring |
Use Scenario: Mounted on IGBT heatsink in variable-frequency drives to detect abnormal winding or gate-driver heating. IC Role / Device Role / Timing Role: Standalone thermal alarm asserting high when heatsink reaches +65°C - interfaced to PLC input or safety relay. Use Value: Provides fail-safe, single-point thermal cutoff independent of microcontroller firmware integrity. |
Use Scenario: Integrated into isolated AC/DC medical power supply to monitor transformer or rectifier temperature per IEC 60601-1. IC Role / Device Role / Timing Role: Certified thermal monitor with ±0.5°C typical accuracy and −55°C to +135°C operation for safety-critical assertion. Use Value: Meets Class II leakage and thermal derating requirements without adding complexity to isolation barrier design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6502UKP065 | SOT23-5 package (5-pin), same +65°C trip, identical electrical specs | Smaller footprint and lower thermal mass - faster response but higher θJA (140°C/W) | Select for PCB space-constrained designs where thermal coupling to local hotspot is prioritized over heatsink mounting |
| LMT86DCKR | TI analog-output temperature sensor (not switch); requires external comparator and reference | Provides continuous analog voltage vs. temperature - enables programmable thresholds and thermal profiling | Select only if system already includes ADC/comparator resources and requires adjustable or dual-threshold functionality |
Compared with MAX6502CMP065, the MAX6502UKP065 offers identical switching behavior in a smaller SOT23-5 package but sacrifices thermal conduction capability; the LMT86DCKR is not a functional replacement-it adds design complexity and does not provide direct logic-level assertion.
Availability
MAX6502CMP065 is available at Aetrix Electronics and suitable for industrial motor drives, medical power modules, telecom power supplies, and embedded fan-control systems requiring stable component supply across long production lifecycles.
Supply support for MAX6502CMP065 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) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX6501–MAX6504 family was designed as low-cost, micropower, fully integrated temperature switches for embedded thermal protection-eliminating external components while delivering factory-trimmed accuracy and robust push-pull/open-drain outputs.
FAQ
What is the exact temperature trip point of the MAX6502CMP065?
The MAX6502CMP065 has a factory-programmed hot-temperature threshold of +65°C, with typical accuracy of ±0.5°C across the full operating range (−55°C to +135°C). This value is laser-trimmed during production and does not require user calibration or external components to achieve specified performance.
Does the MAX6502CMP065 require external pull-up resistors?
No, the MAX6502CMP065 uses an active-high push-pull output stage and does not require external pull-up resistors. Unlike open-drain variants (e.g., MAX6501), it can directly drive logic inputs, FET gates, or fan-enable lines with guaranteed VOH ≥ VCC − 1.5V and VOL ≤ 0.4V under load.
How is hysteresis configured on the MAX6502CMP065?
Hysteresis on the MAX6502CMP065 is set via the HYST pin: connect to GND for +2°C hysteresis or to VCC for +10°C hysteresis. The pin must not be left floating, as intermediate voltages increase supply current and degrade thermal stability. The actual hysteresis value varies slightly with trip temperature, as documented in Figure TOC8 of the datasheet.
What package type does the MAX6502CMP065 use, and why is it significant?
The MAX6502CMP065 uses a 7-pin TO-220-7 package with exposed thermal tab. This package provides θJA = 75°C/W - significantly lower than the SOT23-5 variant's 140°C/W - enabling direct mounting to heatsinks for accurate, low-thermal-resistance temperature monitoring of power semiconductors or transformers.
Can the MAX6502CMP065 be used in safety-critical medical applications?
Yes - the MAX6502CMP065 operates across −55°C to +135°C and delivers ±0.5°C typical threshold accuracy, making it suitable for IEC 60601-1 compliant medical power supplies. Its single-function, comparator-based architecture avoids firmware dependencies, supporting fail-safe thermal cutoff independent of system controller health.
MAX6502CMP065 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-220-7
- Packaging:
- Bulk
- Product Status:
- Active
- Trip Temperature Threshold:
- Hot
- Switching Temperature:
- 55°C
- Accuracy:
- ±4°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:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- TO-220-7
MAX6502CMP065 FAQ
1.How can I place an order for MAX6502CMP065 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6502CMP065 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 MAX6502CMP065 reliable?
The price and inventory of MAX6502CMP065 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6502CMP065 is usually 5 days.
3.What payment methods are accepted for MAX6502CMP065?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6502CMP065 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6502CMP065?
MAX6502CMP065 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6502CMP065 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 MAX6502CMP065?
For technical support, including MAX6502CMP065 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6502CMP065 requirements.
6.How does Aetrix verify that MAX6502CMP065 is sourced from the original manufacturer or authorized distributors?
All MAX6502CMP065 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 MAX6502CMP065 meets industry standards.
7.What is the process for return or replacement of MAX6502CMP065?
All MAX6502CMP065 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6502CMP065, 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 MAX6502CMP065 part is unused and in its original packaging.
Return procedure for MAX6502CMP065:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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Analog Devices Inc./Maxim Integrated
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