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Analog Devices Inc./Maxim Integrated MAX6414UK175/V+T
- Part No.:
- MAX6414UK175/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6414UK175/V+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,300
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Product details
Overview
The MAX6414UK175/V+T from Maxim Integrated is a low-power microprocessor supervisor IC with fixed 1.75V VCC reset threshold, manual reset input (MR), and active-low open-drain RESET output. It monitors supply voltage in automotive-grade systems, asserts reset during brownout or power-up, and uses an external capacitor on SRT to set timeout (2.75–5.75ms typical). Designed for critical μP monitoring in harsh environments.
For engineers reviewing the MAX6414UK175/V+T datasheet, MAX6414UK175/V+T pinout, MAX6414UK175/V+T application, or MAX6414UK175/V+T equivalent, this page delivers verified electrical specs, AEC-Q100-qualified thermal performance (-40°C to +125°C), SOT23-5 package constraints, and real-world dual-supply interface considerations for battery-powered controllers and embedded automotive modules.
Technical Context
This device implements a precision bandgap-based voltage comparator for VCC monitoring with ±2.5% threshold accuracy over temperature, paired with a 240nA constant-current ramp generator on SRT that charges an external capacitor to control reset timeout. The MR input includes internal 20kΩ pullup and 75ns glitch rejection.
The open-drain RESET output supports logic-level translation up to 5.5V and guarantees valid operation down to VCC = 1V, with VOL ≤ 0.4V at 3.2mA sink current. Reset assertion occurs when VCC falls below 1.75V or MR is pulled low, and deassertion requires both VCC > 1.75V and MR high for the full timeout period.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 1.75V nominal, ±2.5% over -40°C to +125°C - ensures reliable brownout detection across automotive temperature range |
| Reset Timeout Period | 3.00–5.75ms with 1500pF SRT capacitor - externally adjustable timing for μP initialization sequencing |
| Supply Current | 1.7μA typical at VCC ≤ 2.0V - enables multi-year battery life in portable and remote sensors |
| Operating Temperature | -40°C to +125°C - AEC-Q100 qualified for under-hood and powertrain applications |
| RESET Output Type | Active-low open-drain - allows wired-OR configuration and level-shifting to 3.3V/5V μP reset inputs |
| MR Input Logic | Active-low with 20kΩ internal pullup - eliminates external components for manual reset implementation |
| VCC Range | 1.0V to 5.5V - supports operation during deep brownout and compatibility with 1.2V–5V system rails |
Pinout & Package
SOT23-5 package (U5+2A outline), 5-pin surface-mount, RoHS-compliant lead-free (+) marking, thermal resistance θJA = 255.9°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low open-drain reset output | Drives μP reset input low; requires external pullup; sinks up to 3.2mA at VCC ≥ 4.5V |
| 2 - GND | Ground reference | Common return path for all internal circuitry and external capacitor (SRT) |
| 3 - MR | Manual reset input | Active-low trigger; internally pulled up to VCC; 75ns glitch rejection prevents false resets |
| 4 - SRT | Set reset timeout input | 240nA constant-current source; connects to external capacitor to program timeout delay |
| 5 - VCC | Supply voltage and monitored rail | Powers device and provides input to fixed-threshold comparator; valid down to 1.0V |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.75V reset threshold | Laser-trimmed accuracy enables precise brownout detection without external resistors |
| Capacitor-adjustable timeout | 2.75–5.75ms range via 0–1500pF SRT capacitor - matches diverse μP reset timing requirements |
| AEC-Q100 qualification | Qualified for automotive applications per /V suffix - validated for -40°C to +125°C operation and transient immunity |
| Low quiescent current | 1.7μA typical at 2.0V - minimizes battery drain in always-on vehicle subsystems |
| Open-drain RESET with 5.5V tolerance | Enables direct interface to 3.3V or 5V μP reset pins without level translators |
Applications
| Automotive Body Control Module | Medical Infusion Pump Controller |
|---|---|
Use Scenario: Monitors 3.3V microcontroller supply in door module exposed to load dump and cold-crank conditions. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low reset during VCC dip below 1.75V; timeout set to 4.375ms to exceed μP's minimum reset pulse width. Use Value: Prevents erratic firmware execution during battery voltage sag, ensuring deterministic restart after recovery. | Use Scenario: Ensures safe shutdown of motor drivers and sensor interfaces when main 5V rail drops during battery swap. IC Role / Device Role / Timing Role: Fixed-threshold supervisor with manual reset override; open-drain output tied to multiple safety-critical ICs via shared pullup. Use Value: Guarantees coordinated reset across subsystems while supporting clinician-initiated recalibration via MR button. |
| Industrial PLC I/O Expansion Card | Portable Data Logger with Dual Rails |
Use Scenario: Supervises isolated 2.5V FPGA core supply in DIN-rail mounted controller operating near motors and relays. IC Role / Device Role / Timing Role: Brownout detector with high noise immunity; SRT capacitor selected for 5.75ms timeout to accommodate slow power rail rise times. Use Value: Eliminates spurious resets caused by EMI-induced transients, improving field reliability in electrically noisy factories. | Use Scenario: Manages reset sequencing between 1.8V sensor interface and 3.3V wireless MCU in battery-powered environmental monitor. IC Role / Device Role / Timing Role: Single-supply supervisor on primary rail; MR pin used to force synchronized reset during firmware update. Use Value: Reduces BOM count by replacing dual-rail supervisors, while maintaining guaranteed reset validity down to VCC = 1V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6414UK175T | No /V automotive qualification; same electrical specs and SOT23-5 package | Not rated for automotive temperature or AEC-Q100 stress testing | Select for industrial or consumer designs where extended temp range is not required |
| TPS3808G17QDBVRQ1 | TI AEC-Q100-qualified supervisor with 1.7V threshold, push-pull output, and fixed 200ms timeout | Lacks capacitor-adjustable timeout and manual reset input; different output drive architecture | Choose when long, fixed reset duration is acceptable and open-drain flexibility is unnecessary |
Compared with MAX6414UK175T, the /V+T variant adds automotive qualification and lead-free compliance; versus TPS3808G17QDBVRQ1, it offers design flexibility via adjustable timeout and MR input but requires external pullup for reset signaling.
Availability
MAX6414UK175/V+T is available at Aetrix Electronics and suitable for automotive body electronics, medical infusion pumps, industrial PLCs, and portable data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6414UK175/V+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.
The MAX6412–MAX6420 product line delivers ultra-low-power, capacitor-programmable microprocessor supervisors optimized for robust operation in automotive and safety-critical embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX6414UK175/V+T?
The MAX6414UK175/V+T has a factory-trimmed VCC reset threshold of 1.75V nominal, with ±2.5% accuracy over the full -40°C to +125°C operating range. This value is laser-trimmed and specified in the Electrical Characteristics table under VTH parameter. The '175' in the part number directly encodes the 1.75V threshold, confirmed in Table 1 of the datasheet.
Does the MAX6414UK175/V+T support manual reset functionality?
Yes, the MAX6414UK175/V+T includes a dedicated MR (manual reset) input on pin 3. It is active-low, features an internal 20kΩ pullup resistor, and provides 75ns glitch rejection. Pulling MR low asserts the open-drain RESET output for the full timeout period, making it suitable for operator-initiated resets in automotive and medical devices.
What package type and footprint does the MAX6414UK175/V+T use?
The MAX6414UK175/V+T is housed in a SOT23-5 package (outline number 21-0057, land pattern 90-0174), with RoHS-compliant lead-free termination indicated by the '+' in the suffix. Its 5-pin configuration requires standard SOT23-5 PCB footprint and supports reflow soldering at +260°C for lead-free processes.
How is the reset timeout period set on the MAX6414UK175/V+T?
The reset timeout period on the MAX6414UK175/V+T is set by connecting an external capacitor between pin 4 (SRT) and ground. Using CSRT = 1500pF yields a typical timeout of 4.375ms. The relationship is tRP = (2.71 × 10⁶) × CSRT + 275µs, where tRP is in seconds and CSRT in farads. Ceramic capacitors with <10nA leakage are recommended.
Is the MAX6414UK175/V+T qualified for automotive applications?
Yes, the '/V' suffix in MAX6414UK175/V+T explicitly denotes AEC-Q100 qualification. It is rated for operation from -40°C to +125°C, undergoes automotive-grade stress testing, and is intended for use in body electronics, infotainment, and other non-safety-critical automotive systems requiring high reliability.
MAX6414UK175/V+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:
- 1.75V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6414UK175/V+T FAQ
1.How can I place an order for MAX6414UK175/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6414UK175/V+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 MAX6414UK175/V+T reliable?
The price and inventory of MAX6414UK175/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6414UK175/V+T is usually 5 days.
3.What payment methods are accepted for MAX6414UK175/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6414UK175/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6414UK175/V+T?
MAX6414UK175/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6414UK175/V+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 MAX6414UK175/V+T?
For technical support, including MAX6414UK175/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6414UK175/V+T requirements.
6.How does Aetrix verify that MAX6414UK175/V+T is sourced from the original manufacturer or authorized distributors?
All MAX6414UK175/V+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 MAX6414UK175/V+T meets industry standards.
7.What is the process for return or replacement of MAX6414UK175/V+T?
All MAX6414UK175/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6414UK175/V+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 MAX6414UK175/V+T part is unused and in its original packaging.
Return procedure for MAX6414UK175/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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