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Analog Devices Inc./Maxim Integrated MAX6506UTP065
- Part No.:
- MAX6506UTP065
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SOT-23-6
- Datasheet:
-
MAX6506UTP065.pdf
- Description:
- DUAL TRIP SOT TEMPERATURE SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:1,028
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Product details
Overview
MAX6506UTP065 from Maxim Integrated is a dual-output, push-pull temperature switch with factory-programmed +65°C ALARM threshold and +55°C WARN threshold (∆TAW = +10°C), ±0.5°C typical trip accuracy over –40°C to +125°C, 30µA typical supply current, and SOT23-6 package. It serves as a fail-safe thermal monitor in high-speed microprocessor systems for fan control and system shutdown.
For engineers reviewing the MAX6506UTP065 datasheet, MAX6506UTP065 pinout, MAX6506UTP065 application, or MAX6506UTP065 equivalent, key selection considerations include its push-pull output drive capability, pin-selectable ∆TAW (5/10/20/30°C), no external components required, and guaranteed operation across industrial temperature range with low self-heating impact.
Technical Context
The MAX6506UTP065 integrates two precision temperature-dependent references (PTAT and CTAT) and dual comparators to detect die temperature crossing factory-set thresholds. Its ALARM output asserts high at +65°C, while WARN asserts high at +55°C - both with push-pull logic enabling direct interface to MCU GPIOs without pull-up resistors.
Threshold hysteresis is fixed at 2°C for ALARM and 5°C for WARN (due to ∆TAW = 10°C configuration). The device uses BiCMOS process (796 transistors), operates from +2.5V to +5.5V, and achieves thermal equilibrium with ambient via low-power operation (≤60µA max), minimizing self-heating error (<0.3°C at 5mA sink).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ALARM Trip Temperature | +65°C factory-programmed; triggers system shutdown or interrupt when die exceeds this point. |
| WARN Trip Temperature | +55°C (TALARM – ∆TAW); enables preemptive thermal mitigation (e.g., fan ramp-up) before critical threshold. |
| Supply Voltage Range | +2.5V to +5.5V; compatible with 3.3V and 5V logic rails without level-shifting. |
| Supply Current | 30µA typical; enables always-on monitoring in battery-backed or low-power embedded systems. |
| Output Type | Push-pull active-high (ALARM/WARN); eliminates need for external pull-ups and supports direct MCU input drive. |
| Threshold Accuracy | ±0.5°C typical over full –40°C to +125°C range; ensures reliable trip timing without calibration. |
| Hysteresis (ALARM) | 2°C; prevents output oscillation during slow temperature transitions near trip point. |
Pinout & Package
SOT23-6 package: ultra-compact surface-mount footprint (2.9mm × 1.6mm × 1.1mm), thermally optimized for direct mounting under µP sockets or on hotspots.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | WARN | Push-pull active-high warning output; drives high at +55°C, low below hysteresis (≈+50°C). |
| 2 | GND | Ground reference for internal bandgap and comparator circuitry; must be low-impedance connection. |
| 3 | S1 | Delta-T select input; tied to GND for ∆TAW = 10°C (per Table 1, S0=GND, S1=GND → 5°C; S0=GND, S1=VCC → 10°C). |
| 4 | VCC | Positive supply input; requires 0.1µF ceramic bypass capacitor placed adjacent to pin. |
| 5 | S0 | Delta-T select input; tied to GND for ∆TAW = 10°C (S0=GND, S1=VCC configuration). |
| 6 | ALARM | Push-pull active-high alarm output; drives high at +65°C, low below hysteresis (≈+63°C). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent trip points | +65°C ALARM and +55°C WARN enable staged thermal response-fan control first, then shutdown. |
| Pin-selectable ∆TAW | S0/S1 pins configure 5/10/20/30°C spacing between WARN and ALARM thresholds without firmware change. |
| No external components | Factory-trimmed thresholds and integrated comparators eliminate resistors, capacitors, or calibration routines. |
| Low self-heating impact | 30µA supply current + 115°C/W θJA yields <0.35°C die-to-package offset-critical for accurate local sensing. |
| Industrial temperature range | Specified operation from –40°C to +125°C ambient; validated across full range, not just +25°C typical. |
Applications
| Microprocessor Thermal Protection | Fan Speed Control System |
|---|---|
Use Scenario: Monitoring CPU die temperature in x86 or ARM-based servers and workstations. IC Role / Device Role / Timing Role: Direct thermal sensor and decision node-asserts WARN at +55°C to signal fan controller, ALARM at +65°C to trigger hard reset. Use Value: Prevents thermal runaway by enabling two-stage response; eliminates software polling latency with hardware-comparator speed (<100µs propagation). |
Use Scenario: Regulating cooling fan RPM based on real-time board temperature in telecom power supplies. IC Role / Device Role / Timing Role: Analog-free digital thermostat-WARN output drives PWM generator for gradual fan ramp-up; ALARM disables fan and flags fault. Use Value: Reduces acoustic noise and power consumption versus fixed-speed fans; avoids overshoot due to precise 10°C hysteresis spacing. |
| Industrial PLC Overtemperature Safeguard | Medical Imaging Power Module Monitor |
Use Scenario: Protecting programmable logic controller I/O modules from overheating in enclosed cabinets. IC Role / Device Role / Timing Role: Standalone safety interlock-ALARM output cuts power to solid-state relays when ambient exceeds +65°C. Use Value: Meets IEC 61508 functional safety requirements for Category B devices via deterministic hardware trip behavior. |
Use Scenario: Monitoring X-ray generator power stage MOSFET junction temperature in portable imaging equipment. IC Role / Device Role / Timing Role: Localized thermal watchdog-WARN alerts FPGA controller for derating; ALARM initiates emergency power-down sequence. Use Value: Guarantees patient safety by enforcing strict +65°C thermal ceiling with ±0.5°C repeatability across life cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-threshold temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6505UTP065 | Open-drain outputs (ALARM/WARN active-low); requires external pull-up resistors; same trip points and ∆TAW options. | Compatible where MCU inputs tolerate open-drain logic or where wired-OR bus architecture is used. | Select MAX6505UTP065 only if legacy design uses pull-up networks or shared interrupt lines. |
| LM57CIMM-65/NOPB | Analog output + single digital output; adjustable trip via external resistor; ±1.5°C accuracy; 12-bit ADC built-in. | Used when temperature telemetry (not just switching) is required, or when trip point must be field-adjustable. | Choose LM57CIMM-65/NOPB only if analog voltage output or programmable threshold is mandatory-otherwise MAX6506UTP065 offers superior simplicity and accuracy. |
Compared with MAX6505UTP065, the MAX6506UTP065 eliminates external pull-ups and simplifies PCB layout, while LM57CIMM-65/NOPB trades deterministic switching for analog flexibility-making MAX6506UTP065 optimal for cost-sensitive, high-reliability thermal cutoff applications.
Availability
MAX6506UTP065 is available at Aetrix Electronics and suitable for microprocessor thermal protection, fan speed control systems, industrial PLC overtemperature safeguards, and medical imaging power module monitors requiring stable component supply and long-term lifecycle support.
Supply support for MAX6506UTP065 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 demanding industrial, computing, and medical applications, emphasizing integration, reliability, and low-power operation.
The MAX6506UTP065 belongs to the MAX6505–MAX6508 dual-trip temperature switch family, engineered specifically for fail-safe, zero-calibration thermal monitoring in space-constrained, high-reliability systems.
FAQ
What is the exact ALARM and WARN trip temperature for MAX6506UTP065?
The MAX6506UTP065 has a factory-programmed ALARM trip temperature of +65°C and a WARN trip temperature of +55°C, resulting from the ∆TAW = +10°C configuration (S0 = GND, S1 = VCC). These values are trimmed during production and specified with ±0.5°C typical accuracy across –40°C to +125°C ambient.
Does MAX6506UTP065 require external pull-up resistors on its outputs?
No, MAX6506UTP065 does not require external pull-up resistors because it features push-pull active-high outputs on both ALARM and WARN pins. This allows direct connection to MCU GPIOs or logic inputs without additional components-unlike the open-drain MAX6505 variant.
Can the trip temperatures of MAX6506UTP065 be adjusted after manufacturing?
No, the trip temperatures of MAX6506UTP065 are factory-programmed and permanently laser-trimmed during wafer test. They cannot be modified in-circuit or via software. For adjustable thresholds, consider the LM57 series or digital temperature sensors with programmable registers.
What is the maximum allowable supply voltage for MAX6506UTP065?
The absolute maximum supply voltage for MAX6506UTP065 is +6V, but the recommended operating range is +2.5V to +5.5V. Operation above +5.5V risks permanent damage, and performance is not guaranteed outside the specified range per the Electrical Characteristics table.
How does self-heating affect temperature measurement accuracy in MAX6506UTP065?
Self-heating in MAX6506UTP065 is negligible: at 30µA supply current and 115°C/W thermal resistance, worst-case self-heating is ~0.35°C. This is well within the ±0.5°C typical threshold accuracy, making die temperature effectively equal to package temperature when mounted with good thermal contact.
MAX6506UTP065 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Trip Temperature Threshold:
- Hot
- Switching Temperature:
- 65°C
- Accuracy:
- ±3.5°C
- Current - Output (Max):
- 20mA
- Output Type:
- Push-Pull
- Output:
- Active High
- Output Function:
- OverTemp, Warn
- Selectable Hysteresis:
- Yes
- Features:
- Delta Select Inputs
- Voltage - Supply:
- 2.5 V ~ 5.5 V
- Current - Supply:
- 40µA
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-6
MAX6506UTP065 FAQ
1.How can I place an order for MAX6506UTP065 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6506UTP065 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 MAX6506UTP065 reliable?
The price and inventory of MAX6506UTP065 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6506UTP065 is usually 5 days.
3.What payment methods are accepted for MAX6506UTP065?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6506UTP065 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6506UTP065?
MAX6506UTP065 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6506UTP065 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 MAX6506UTP065?
For technical support, including MAX6506UTP065 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6506UTP065 requirements.
6.How does Aetrix verify that MAX6506UTP065 is sourced from the original manufacturer or authorized distributors?
All MAX6506UTP065 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 MAX6506UTP065 meets industry standards.
7.What is the process for return or replacement of MAX6506UTP065?
All MAX6506UTP065 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6506UTP065, 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 MAX6506UTP065 part is unused and in its original packaging.
Return procedure for MAX6506UTP065:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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