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Analog Devices Inc./Maxim Integrated MAX6417UK+T
- Part No.:
- MAX6417UK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6417UK+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:9,603
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Product details
Overview
MAX6417UK+T from Maxim Integrated is an automotive-grade, low-power microprocessor supervisor IC with adjustable reset threshold (≥1.26V), open-drain active-low RESET output, capacitor-programmable timeout (275µs–5.75ms), and operation from -40°C to +125°C in SOT23-5. It monitors external supply rails in battery-powered controllers and embedded systems requiring precise brownout detection.
For engineers reviewing the MAX6417UK+T datasheet, MAX6417UK+T pinout, MAX6417UK+T application, or MAX6417UK+T equivalent, this page delivers verified electrical specs, thermal behavior at 125°C, reset timing under transient conditions, dual-voltage monitoring capability via external resistor divider, and AEC-Q100-compliant sourcing for automotive electronics design.
Technical Context
The MAX6417UK+T implements a high-impedance adjustable reset comparator referenced to a 1.26V internal threshold, enabling external voltage monitoring down to 1.26V using a resistor divider. Its SRT pin sources a precision 240nA ramp current to charge an external capacitor, generating a programmable reset timeout period with ±2.5% threshold accuracy over temperature.
It features an open-drain RESET output rated for 0V–6.0V pull-up compatibility, guaranteed valid logic down to VCC = 1V, and immunity to VCC transients ≤50µs when overdriving the reset threshold by 100mV. No manual reset input is included-reset initiation relies solely on VCC or RESET IN falling below threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0V to 5.5V - supports single-cell Li-ion, 1.8V/3.3V/5V system rails without level-shifting. |
| Quiescent Current | 1.7µA (typ) at VCC ≤ 2.0V - enables >10-year battery life in always-on monitoring applications. |
| Reset Threshold Accuracy | ±2.5% over -40°C to +125°C - ensures reliable brownout detection across full automotive temperature range. |
| RESET Timeout Range | 275µs to 5.75ms (CSRT = 0F to 1500pF) - configurable to match µP reset hold-time requirements. |
| RESET IN Threshold | 1.205V to 1.305V (at VCC = 1.6V–5.0V) - sets minimum detectable external rail voltage with 100mV hysteresis margin. |
| Operating Temperature | -40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood and powertrain control modules. |
| Output Type | Active-low open-drain - allows wired-OR configuration and interface to 1.8V/3.3V/5V µP reset inputs. |
Pinout & Package
SOT23-5 package (U5+2A outline, RoHS-compliant, 5-pin surface-mount). Thermal resistance θJA = 255.9°C/W (multi-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain active-low reset output | Drives µP reset input low during fault; requires external pull-up; compatible with 0–6V logic domains. |
| 2 - GND | Ground reference | Return path for internal comparators and ramp current source; must be low-impedance for accurate timeout timing. |
| 3 - RESET IN | Adjustable reset threshold input | High-impedance node connected to resistor-divider midpoint; sets monitored voltage VMON_TH ≥ 1.26V. |
| 4 - SRT | Set Reset Timeout input | Sinks 240nA precision current to charge external CSRT capacitor; trace routing critical for timing accuracy. |
| 5 - VCC | Supply voltage and fixed-threshold monitor input | Power source and primary supply rail monitor; reset asserted if VCC falls below internal threshold (not applicable to MAX6417). |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-adjustable reset timeout | Enables precise matching of µP reset hold time without firmware changes or BOM variants. |
| Adjustable reset threshold (≥1.26V) | Supports custom voltage monitoring (e.g., 1.8V I/O rail, 2.5V analog supply) using high-value resistors to minimize leakage. |
| Open-drain RESET output | Allows shared reset bus across multiple supervisors or mixed-voltage systems without level translators. |
| AEC-Q100 qualified | Validated for automotive applications including engine control units, ADAS sensors, and body electronics modules. |
| Guaranteed RESET validity to VCC = 1V | Ensures deterministic reset assertion during deep brownout, preventing undefined µP state before shutdown. |
Applications
| Engine Control Unit (ECU) Power Monitoring | Automotive Camera Module Supply Supervision |
|---|---|
Use Scenario: Monitors 3.3V imaging sensor supply and 1.2V core rail in rear-view camera module exposed to under-hood temperatures. IC Role / Device Role / Timing Role: Adjustable reset comparator detects undervoltage on 1.2V rail via resistor divider; open-drain RESET asserts camera SoC reset until both rails stabilize. Use Value: Prevents image corruption or boot failure during cold cranking transients by holding reset for ≥4ms after rail recovery. |
Use Scenario: Supervises 5V power rail in automotive infotainment head unit with variable load profiles and thermal cycling. IC Role / Device Role / Timing Role: Uses SRT capacitor to set 3.5ms reset timeout aligned with processor's minimum reset pulse width requirement. Use Value: Eliminates need for discrete RC network and reduces PCB area by 60% versus legacy supervisor solutions. |
| Industrial Battery Management System (BMS) | Medical Portable Diagnostic Device |
Use Scenario: Monitors isolated 2.8V auxiliary supply in high-reliability BMS controller operating at -40°C ambient. IC Role / Device Role / Timing Role: RESET IN configured for 2.75V threshold; open-drain output interfaces to isolated µP reset via optocoupler. Use Value: Maintains functional safety integrity by asserting reset within 100µs of supply dip, meeting IEC 61508 SIL-2 timing constraints. |
Use Scenario: Ensures safe startup of ECG front-end ASIC powered from coin-cell battery in handheld diagnostic tool. IC Role / Device Role / Timing Role: Low 1.7µA quiescent current extends battery life; RESET remains asserted until 1.26V rail exceeds threshold with 33mV hysteresis. Use Value: Guarantees zero false resets during battery voltage sag, avoiding interruption of critical patient data acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6416UK+T | Active-high push-pull RESET output; identical adjustable threshold and timeout architecture. | Requires µP with active-high reset input; no external pull-up needed but incompatible with wired-OR buses. | Select when system-level reset logic mandates active-high assertion and board layout prohibits pull-up components. |
| TLV809E29DBVR | Fixed 2.93V threshold; no adjustable input or capacitor-programmable timeout; 1.6µA ICC; SOT23-3 package. | Limited to single-rail monitoring; unsuitable for dual-voltage or custom-threshold designs. | Choose only for cost-sensitive, single-threshold applications where timing flexibility and external rail monitoring are unnecessary. |
Compared with MAX6417UK+T, MAX6416UK+T offers identical supervision functionality but differs in reset polarity and drive type-critical for signal integrity in noise-prone automotive harnesses-while TLV809E29DBVR sacrifices adjustability and timeout control for lower unit cost and smaller footprint in non-automotive consumer devices.
Availability
MAX6417UK+T is available at Aetrix Electronics and suitable for automotive ECUs, medical portable diagnostics, industrial battery management systems, and intelligent instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6417UK+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 and mixed-signal ICs for demanding industrial, automotive, and medical applications, emphasizing reliability, low power, and AEC-Q100 compliance.
The MAX6412–MAX6420 family delivers configurable microprocessor supervision for harsh-environment systems, with MAX6417UK+T specifically engineered for adjustable dual-rail monitoring in automotive-grade embedded controllers.
FAQ
What is the function of the SRT pin on the MAX6417UK+T?
The SRT pin on the MAX6417UK+T sources a precision 240nA current to charge an external capacitor (CSRT), determining the reset timeout period using tRP = (2.71 × 10⁶) × CSRT + 275µs. This enables accurate, user-defined reset hold times without trimming or firmware intervention. Layout best practices require short, low-leakage traces to maintain timing fidelity across temperature.
Does the MAX6417UK+T include a manual reset input (MR)?
No, the MAX6417UK+T does not include a manual reset input. Unlike MAX6412–MAX6414 variants, it relies exclusively on VCC and RESET IN voltage monitoring for reset assertion. Manual reset functionality can be added externally by placing a momentary switch in parallel with the R2 resistor of the RESET IN voltage divider, pulling that node to ground to trigger reset.
What is the minimum monitored voltage supported by the MAX6417UK+T RESET IN pin?
The MAX6417UK+T RESET IN pin supports monitoring voltages down to 1.26V, based on its internal 1.205V–1.305V threshold with ±2.5% accuracy over temperature. Using the formula VMON_TH = 1.26V × (R1 + R2)/R2, designers can configure higher thresholds (e.g., 2.5V, 3.3V) with high-value resistors to minimize current draw while maintaining detection precision.
Can the MAX6417UK+T operate reliably at VCC = 1.0V?
Yes, the MAX6417UK+T guarantees valid RESET output behavior down to VCC = 1.0V, including proper logic levels and timing. Below 1.0V, RESET may become indeterminate; for applications requiring validity to 0V, a 100kΩ pulldown resistor between RESET and GND holds the output low, though this is not required for standard automotive or industrial use cases where operation ceases below 1.0V.
Is the MAX6417UK+T AEC-Q100 qualified?
Yes, the MAX6417UK+T is AEC-Q100 qualified (Grade 1, -40°C to +125°C), as confirmed in the official Maxim Integrated ordering information and datasheet revision history. The "/V" suffix denotes automotive qualification, and MAX6417UK+T carries this qualification by default in its lead-free SOT23-5 package, making it suitable for powertrain, chassis, and ADAS applications.
MAX6417UK+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
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6417UK+T FAQ
1.How can I place an order for MAX6417UK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6417UK+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 MAX6417UK+T reliable?
The price and inventory of MAX6417UK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6417UK+T is usually 5 days.
3.What payment methods are accepted for MAX6417UK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6417UK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6417UK+T?
MAX6417UK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6417UK+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 MAX6417UK+T?
For technical support, including MAX6417UK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6417UK+T requirements.
6.How does Aetrix verify that MAX6417UK+T is sourced from the original manufacturer or authorized distributors?
All MAX6417UK+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 MAX6417UK+T meets industry standards.
7.What is the process for return or replacement of MAX6417UK+T?
All MAX6417UK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6417UK+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 MAX6417UK+T part is unused and in its original packaging.
Return procedure for MAX6417UK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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