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Analog Devices Inc./Maxim Integrated MAX6501UKP095-T
- Part No.:
- MAX6501UKP095-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Thermostats - Solid State
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6501UKP095-T.pdf
- Description:
- MAX6501 +2.7V TO +5.5V, MICROPOW
- Quantity:
- Payment:
- Shipping:
Inventory:123,000
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Product details
Overview
MAX6501UKP095-T from onsemi is an ultra-small SOT-23A temperature switch with factory-programmed +95°C trip threshold, open-drain active-low output, and pin-selectable +2°C or +10°C hysteresis. It draws only 17 µA supply current, operates from -55°C to +125°C, and achieves ±4°C max threshold accuracy - designed for microprocessor reset control in thermal fail-safe circuits.
For engineers reviewing the MAX6501UKP095-T datasheet, MAX6501UKP095-T pinout, MAX6501UKP095-T application, or MAX6501UKP095-T equivalent, this device requires attention to HYST pin configuration, pull-up resistor selection on TOVER, GND pin 2 thermal layout, VCC decoupling (≥100 pF), and its fixed +95°C trip point within the +45°C to +115°C factory-programmed range.
Technical Context
The MAX6501UKP095-T integrates a precision bandgap temperature sensor and comparator with factory-trimmed trip point at +95°C. Its internal hysteresis network responds to the HYST pin voltage level (GND = +2°C, VCC = +10°C), independent of trip temperature. No external calibration or feedback components are required.
It implements an open-drain output stage optimized for microprocessor reset assertion: TOVER sinks up to 1.2 mA at 2.7 V while maintaining VOL ≤ 0.3 V, and exhibits <10 nA leakage when high. Thermal response is dominated by package conduction via Pin 2 (lowest θJA path), not self-heating - power dissipation remains below 0.3 mW under typical load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Temperature Threshold | +95°C factory-programmed trip point - fixed, non-adjustable; asserts output when die temperature exceeds this value. |
| Hysteresis | +2°C (HYST = GND) or +10°C (HYST = VCC) - prevents output chatter near trip point; selected externally per PCB design. |
| Supply Current | 17 µA typical - enables always-on thermal monitoring without impacting system power budget. |
| Threshold Accuracy | ±4°C maximum over -55°C to +125°C - ensures reliable reset activation across industrial temperature extremes. |
| Output Type | Open-drain, active-low TOVER - requires external pull-up; compatible with logic inputs up to 7.0 V, exceeding VCC. |
| Operating Voltage | +2.7 V to +5.5 V - supports direct connection to 3.3 V or 5 V rails without regulation. |
| Package | 5-Pin SOT-23A (EIAJ SC-74A) - 2.8 mm × 2.5 mm footprint; Pin 2 provides lowest thermal resistance to die. |
Pinout & Package
5-Pin SOT-23A package (Case 1212-01), 2.8 mm × 2.5 mm body, 0.95 mm pin pitch. Pin 2 serves as primary thermal path to die and must be connected to ground plane with low-impedance copper for accurate sensing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | GND | Ground reference and primary thermal conduction path; both pins must be tied together near device for minimal θJA. |
| 3 | HYST | Hysteresis select input; CMOS-compatible; must be driven to GND or VCC - floating state increases ICC and causes instability. |
| 4 | VCC | Supply input (+2.7 V to +5.5 V); requires ≥100 pF decoupling capacitor to GND for noise immunity. |
| 5 | TOVER | Open-drain active-low output; sinks current when TDI E > +95°C; requires external pull-up resistor (typically 100 kΩ). |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed +95°C trip point | Eliminates need for external resistive dividers or trimming; guarantees repeatable thermal response without calibration effort. |
| Pin-selectable hysteresis (+2°C / +10°C) | Enables single BOM part to serve multiple thermal stability requirements - no redesign needed when hysteresis tolerance changes. |
| 17 µA supply current | Supports continuous monitoring in battery-backed or energy-constrained systems without measurable impact on standby power. |
| Open-drain output with 7.0 V absolute max rating | Allows interface to higher-voltage logic domains (e.g., 5 V MCU reset) while powered from 3.3 V supply - simplifies level-shifting. |
| SOT-23A thermal optimization (Pin 2 GND) | Provides lowest possible thermal resistance to die; enables accurate local hotspot monitoring when mounted adjacent to CPU or power IC. |
Applications
| Thermal Fail-Safe Reset | Fan Enable Control |
|---|---|
Use Scenario: Monitors CPU die temperature in embedded industrial controller; triggers hard reset if core exceeds safe operating limit. IC Role / Device Role / Timing Role: Temperature switch asserting active-low reset signal to microcontroller's RESET pin upon thermal violation. Use Value: Prevents silicon damage by forcing controlled shutdown before junction temperature reaches destructive levels - enabled by precise +95°C trip and stable hysteresis. |
Use Scenario: Controls 12 V DC cooling fan in network switch chassis; activates fan when ambient near ASIC rises above +95°C. IC Role / Device Role / Timing Role: Open-drain driver interfaced via pull-up to 12 V rail; sinks base/gate current of external NPN/MOSFET switch. Use Value: Delivers deterministic fan turn-on without software intervention; +10°C hysteresis prevents rapid cycling during transient thermal loads. |
| Printer Engine Overtemp Alarm | Notebook Battery Pack Protection |
Use Scenario: Detects overheating in laser printer fuser assembly; drives LED indicator and halts print job when fuser exceeds +95°C. IC Role / Device Role / Timing Role: Standalone thermal alarm generator - TOVER drives optocoupler or logic buffer to isolate main controller. Use Value: Provides hardware-level safety cutoff independent of firmware; immunity to software lockup ensures fail-safe behavior. |
Use Scenario: Monitors lithium-ion battery pack temperature during fast charging; disables charger IC if cell stack reaches +95°C. IC Role / Device Role / Timing Role: Direct interface to charger enable pin (active-low) - TOVER pulled up to charger IC's EN rail. Use Value: Meets IEC 62133 thermal protection requirements with sub-100 ms response; low ICC avoids parasitic drain on battery during storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6501UKP105-T | +105°C fixed trip point; identical package, pinout, and electrical specs. | Triggers at higher temperature - suitable for systems with wider thermal margin or higher ambient operation. | Select when thermal shutdown threshold must be raised without changing circuit layout or firmware logic. |
| TL431ACDBVR + thermistor network | Discrete solution requiring 3–4 passive components; trip point adjustable but less accurate (±5°C typical) and sensitive to component drift. | Used where programmability justifies added BOM cost and board space; lacks integrated hysteresis control. | Choose only if variable trip point is mandatory and long-term stability is secondary to flexibility. |
Compared with MAX6501UKP105-T, the MAX6501UKP095-T offers earlier thermal intervention for tighter safety margins; versus TL431-based designs, it delivers superior accuracy, lower power, smaller footprint, and guaranteed hysteresis - all without calibration or layout revision.
Availability
MAX6501UKP095-T is available at Aetrix Electronics and suitable for thermal fail-safe resets, fan enable controls, printer engine alarms, and notebook battery pack protections requiring stable component supply across industrial, computing, and consumer electronics programs.
Supply support for MAX6501UKP095-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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensors, and logic solutions for automotive, industrial, cloud, and IoT applications.
The MAX6501 series belongs to onsemi's precision temperature sensing portfolio, engineered for compact, low-power thermal monitoring in space-constrained systems where reliability and factory-calibrated accuracy are critical.
FAQ
What is the exact temperature trip point of the MAX6501UKP095-T?
The MAX6501UKP095-T has a factory-programmed temperature threshold of +95°C - meaning its TOVER output transitions low when the die temperature exceeds +95°C. This value is trimmed during manufacturing and is not user-adjustable. The datasheet specifies ±4°C maximum accuracy across the full -55°C to +125°C operating range, with ±0.5°C typical accuracy at +25°C.
How do I configure hysteresis on the MAX6501UKP095-T?
Hysteresis on the MAX6501UKP095-T is configured by connecting Pin 3 (HYST) to either GND or VCC. Tie HYST to GND for +2°C hysteresis, or to VCC for +10°C hysteresis. The HYST pin is CMOS-compatible and must never be left floating - doing so increases supply current and risks unstable output behavior. The hysteresis value is independent of the +95°C trip point.
Can the MAX6501UKP095-T drive a microcontroller reset pin directly?
Yes, the MAX6501UKP095-T can directly drive a microcontroller reset pin via its open-drain TOVER output. Connect TOVER (Pin 5) to the MCU's active-low RESET input through a pull-up resistor (typically 10–100 kΩ) to the MCU's VDD rail. The device sinks up to 1.2 mA while maintaining VOL ≤ 0.3 V at 2.7 V supply, meeting standard reset input voltage thresholds for most 3.3 V and 5 V MCUs.
What is the recommended PCB layout for accurate temperature sensing with the MAX6501UKP095-T?
For accurate sensing, connect both GND pins (1 and 2) to a common ground plane with short, wide traces. Prioritize Pin 2 - it provides the lowest thermal resistance to the die - and place the MAX6501UKP095-T as close as possible to the heat source being monitored. Avoid routing high-current or noisy signals near the device, and use ≥100 pF ceramic decoupling between VCC (Pin 4) and GND. Do not isolate the GND pads thermally.
Does the MAX6501UKP095-T require any external components to operate?
No, the MAX6501UKP095-T requires no external components for basic operation. Only two connections are mandatory: VCC (Pin 4) with ≥100 pF decoupling to GND, and HYST (Pin 3) tied definitively to GND or VCC. The TOVER output (Pin 5) needs an external pull-up resistor only when interfacing with logic - no additional resistors, capacitors, or references are needed for temperature detection or switching functionality.
MAX6501UKP095-T 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:
- 95°C
- Accuracy:
- ±6°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:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- SOT-23-5
MAX6501UKP095-T FAQ
1.How can I place an order for MAX6501UKP095-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6501UKP095-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 MAX6501UKP095-T reliable?
The price and inventory of MAX6501UKP095-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6501UKP095-T is usually 5 days.
3.What payment methods are accepted for MAX6501UKP095-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6501UKP095-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6501UKP095-T?
MAX6501UKP095-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6501UKP095-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 MAX6501UKP095-T?
For technical support, including MAX6501UKP095-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6501UKP095-T requirements.
6.How does Aetrix verify that MAX6501UKP095-T is sourced from the original manufacturer or authorized distributors?
All MAX6501UKP095-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 MAX6501UKP095-T meets industry standards.
7.What is the process for return or replacement of MAX6501UKP095-T?
All MAX6501UKP095-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6501UKP095-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 MAX6501UKP095-T part is unused and in its original packaging.
Return procedure for MAX6501UKP095-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6501UKP095-T Tags
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