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Analog Devices Inc./Maxim Integrated MAX6413UK22+T
- Part No.:
- MAX6413UK22+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6413UK22+T.pdf
- Description:
- IC RESET MPU LOW PWR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,195
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Product details
Overview
MAX6413UK22+T from Maxim Integrated is a low-power microprocessor supervisor IC with fixed 2.188V VCC reset threshold, active-high push-pull reset output, manual reset input (MR), and capacitor-adjustable reset timeout. It monitors single-supply systems in automotive, medical, and battery-powered embedded controllers, asserting reset during brownout or power-up until the externally set timeout expires.
For engineers reviewing the MAX6413UK22+T datasheet, MAX6413UK22+T pinout, MAX6413UK22+T application, or MAX6413UK22+T equivalent, key selection criteria include its guaranteed reset validity down to VCC = 1V, 1.7μA typical quiescent current at 2V, SOT23-5 package compatibility, and AEC-Q100 qualification for automotive use.
Technical Context
The MAX6413UK22+T implements a precision bandgap-based voltage comparator for VCC monitoring with ±2.5% threshold accuracy over –40°C to +125°C, paired with an internal 240nA current source driving the SRT pin to generate a programmable reset timeout via external capacitor discharge timing. Its MR input features a 20kΩ internal pullup and 75ns glitch rejection.
Reset assertion occurs when VCC falls below 2.188V or MR is pulled low; deassertion requires both VCC > 2.188V and MR high for the full timeout period. The active-high push-pull RESET output delivers VOH ≥ 0.8×VCC at ISOURCE = 200µA and VOL ≤ 0.3V at ISINK = 50µA, ensuring robust interface with µP reset inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 2.188V nominal, ±2.5% over temperature - sets precise brownout detection point for 2.2V rail monitoring |
| Quiescent Current | 1.7μA typical at VCC = 2.0V - enables multi-year operation in coin-cell–powered systems |
| Reset Timeout Range | 275μs to 5.75ms (CSRT = 0F to 1500pF) - supports µP initialization delays from fast boot to complex firmware handshake |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup resistor, simplifies PCB layout |
| Supply Voltage Range | 1.0V to 5.5V - ensures valid reset assertion even during deep brownout conditions |
| MR Input Logic | Active-low with 20kΩ internal pullup - allows momentary switch connection without external components |
Pinout & Package
SOT23-5 package: 5-pin surface-mount, 1.6mm × 2.9mm footprint, 1.1mm height, RoHS-compliant lead-free (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-high push-pull reset output | Drives µP reset input high during fault; sinks 50µA @ 0.3V max VOL, sources 200µA @ 0.8×VCC min VOH |
| 2 - GND | Ground reference | Common return path for all internal circuitry; must be low-impedance connection to system ground plane |
| 3 - MR | Manual reset input | Active-low logic input with 20kΩ internal pullup; 1µs minimum pulse width, 75ns glitch rejection |
| 4 - SRT | Set reset timeout input | 240nA constant-current source pin; connects to external capacitor to program timeout period |
| 5 - VCC | Supply voltage and monitored rail input | Power input (1.0–5.5V) and primary voltage monitor; reset asserted if VCC < 2.188V |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-adjustable reset timeout | Enables precise tailoring of reset duration (275μs–5.75ms) to match specific µP requirements without firmware changes |
| Guaranteed reset validity to VCC = 1V | Ensures deterministic reset behavior during deep undervoltage events where most supervisors fail |
| AEC-Q100 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power management |
| Low 1.7μA quiescent current | Minimizes battery drain in always-on systems such as telematics modules and portable medical devices |
| Power-supply transient immunity | Rejects VCC glitches ≤ 100mV overdrive / 50μs duration, preventing spurious resets in noisy electrical environments |
Applications
| Automotive Engine Control Unit (ECU) | Portable Medical Glucose Monitor |
|---|---|
Use Scenario: Monitors 2.2V microcontroller supply in engine ECU exposed to wide temperature swings and load dump transients. IC Role / Device Role / Timing Role: Supervisor asserts active-high RESET during cold-crank brownout (<2.188V) and holds for 4.375ms (CSRT = 1500pF) to ensure full µP initialization. Use Value: Prevents code corruption during ignition cycles; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. | Use Scenario: Powers on/off sequence control in battery-operated glucose meter with strict energy budget. IC Role / Device Role / Timing Role: Detects 2.2V rail collapse during CR2032 battery depletion and triggers controlled shutdown via µP reset. Use Value: 1.7μA ICC extends battery life beyond 2 years; guaranteed reset down to VCC = 1V avoids false wakeups near end-of-life. |
| Industrial PLC I/O Module | Smart Home Hub Controller |
Use Scenario: Supervises 2.2V FPGA configuration voltage in DIN-rail mounted PLC subjected to ESD and conducted noise. IC Role / Device Role / Timing Role: MR input tied to front-panel reset button; SRT capacitor sets 3ms timeout for deterministic FPGA reconfiguration. Use Value: 75ns MR glitch rejection prevents accidental resets from ESD-induced noise; –40°C to +125°C rating covers uncooled enclosures. | Use Scenario: Manages power sequencing for dual-core ARM processor in Wi-Fi–enabled smart home hub. IC Role / Device Role / Timing Role: Monitors 2.2V core rail and asserts RESET high during AC adapter dropout; manual reset via cloud-initiated recovery. Use Value: Active-high push-pull output eliminates external pullup, reducing BOM count and board area in space-constrained design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6413UK22-T | Same electrical specs and pinout, but leaded (Pb-containing) packaging instead of lead-free (+T) | Not suitable for RoHS-compliant production; requires Pb-compatible reflow profile | Select only if legacy manufacturing infrastructure mandates Pb-based soldering |
| TPS3808G22DBVR | Fixed 2.2V threshold, active-high open-drain output, 1.6μA ICC, but no manual reset input | Lacks MR functionality; requires external pullup for reset signal; lower hysteresis (0.5% vs 2.5%) | Choose when MR is unnecessary and open-drain flexibility (e.g., wired-OR reset bus) is preferred |
Compared with MAX6413UK22+T, MAX6413UK22-T offers identical performance in non-RoHS environments, while TPS3808G22DBVR trades manual reset capability for lower ICC and open-drain versatility-making it suitable only when system architecture does not require hardware-initiated reset.
Availability
MAX6413UK22+T is available at Aetrix Electronics and suitable for automotive ECUs, portable medical devices, and industrial PLCs requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6413UK22+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 family delivers ultra-low-power, temperature-stable microprocessor supervision with flexible reset timeout and multiple monitoring configurations for safety-critical embedded systems.
FAQ
What is the exact VCC reset threshold voltage for MAX6413UK22+T?
The MAX6413UK22+T has a factory-trimmed VCC reset threshold of 2.188V nominal, with ±2.5% tolerance over the full –40°C to +125°C operating range. This value is confirmed in Table 1 of the datasheet under suffix "22", and applies specifically to the MAX6413 variant with active-high push-pull output. The MAX6413UK22+T uses laser-trimmed resistors to achieve this precision without external calibration.
Does MAX6413UK22+T support manual reset functionality?
Yes, MAX6413UK22+T includes a dedicated MR (manual reset) input on pin 3. It is active-low with a 20kΩ internal pullup resistor, allowing direct connection of a momentary switch to ground. The device asserts reset for the full timeout period after MR is released, and rejects glitches shorter than 75ns. This feature is explicitly enabled in the MAX6412/MAX6413/MAX6414 series per the Selector Guide.
What package type and dimensions does MAX6413UK22+T use?
MAX6413UK22+T is supplied in a 5-pin SOT23-5 package (package code U5+2A), measuring 1.6mm × 2.9mm with 1.1mm maximum height. The "+T" suffix denotes lead-free, RoHS-compliant construction. Land pattern number 90-0174 and outline number 21-0057 are specified in the Package Information section, and thermal resistance (θJA = 255.9°C/W on multilayer board) is characterized per JEDEC JESD51-7.
Can MAX6413UK22+T monitor voltages other than VCC?
No, MAX6413UK22+T is designed exclusively for single-rail VCC monitoring and does not include a RESET IN pin for external voltage monitoring. Only the MAX6415–MAX6420 variants feature adjustable reset inputs; the MAX6413UK22+T belongs to the fixed-threshold, manual-reset subgroup (MAX6412/MAX6413/MAX6414) with no RESET IN terminal - confirmed by Pin Description table and Selector Guide.
Is MAX6413UK22+T qualified for automotive applications?
Yes, MAX6413UK22+T is AEC-Q100 qualified for automotive use, as stated in the Benefits and Features section and Ordering Information. It operates across –40°C to +125°C and meets stress testing requirements for automotive electronics. Note that /V-suffixed parts (e.g., MAX6414UK29/V+T) denote specific automotive-grade ordering options, but standard MAX6413UK22+T carries full AEC-Q100 qualification per Maxim's documentation.
MAX6413UK22+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:
- 2.188V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6413UK22+T FAQ
1.How can I place an order for MAX6413UK22+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6413UK22+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 MAX6413UK22+T reliable?
The price and inventory of MAX6413UK22+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6413UK22+T is usually 5 days.
3.What payment methods are accepted for MAX6413UK22+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6413UK22+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6413UK22+T?
MAX6413UK22+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6413UK22+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 MAX6413UK22+T?
For technical support, including MAX6413UK22+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6413UK22+T requirements.
6.How does Aetrix verify that MAX6413UK22+T is sourced from the original manufacturer or authorized distributors?
All MAX6413UK22+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 MAX6413UK22+T meets industry standards.
7.What is the process for return or replacement of MAX6413UK22+T?
All MAX6413UK22+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6413UK22+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 MAX6413UK22+T part is unused and in its original packaging.
Return procedure for MAX6413UK22+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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