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Analog Devices Inc./Maxim Integrated MAX6413UK23-T
- Part No.:
- MAX6413UK23-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6413UK23-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
MAX6413UK23-T from Maxim Integrated is a low-power, single-voltage microprocessor reset supervisor IC with factory-trimmed 2.313V VCC reset threshold, active-high push-pull RESET output, manual reset input (MR), and capacitor-adjustable reset timeout delay. It monitors VCC from 1.6V to 5V, asserts reset on undervoltage or MR activation, and holds reset for a user-defined period after recovery. Used in automotive ECUs and battery-powered controllers requiring reliable power-on reset at extended temperature.
For engineers reviewing the MAX6413UK23-T datasheet, MAX6413UK23-T pinout, MAX6413UK23-T application, or MAX6413UK23-T equivalent, key selection criteria include its guaranteed reset validity down to VCC = 1V, 1.7µA typical quiescent current, SOT23-5 package compatibility, and precise ±1.25% (±2.5% over temp) reset threshold accuracy at 2.313V.
Technical Context
The MAX6413UK23-T implements a precision bandgap-based voltage comparator for VCC monitoring and a 240nA constant-current source charging an external capacitor on SRT to generate the reset timeout delay. Its internal 20kΩ MR pullup enables direct switch connection without external components.
Reset assertion occurs when VCC falls below 2.313V (±2.5% over −40°C to +125°C) or MR is pulled low; deassertion follows after VCC rises above threshold and the SRT capacitor ramps to 0.65V. The active-high push-pull RESET output drives µP reset inputs directly with VOL ≤ 0.4V at 3.2mA sink and VOH ≥ 0.8×VCC at 800µA source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 2.313V (typ), ±2.5% over −40°C to +125°C - ensures deterministic reset initiation across automotive temperature range |
| Quiescent Current | 1.7µA (typ) at +25°C - enables multi-year operation in coin-cell–powered systems |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup resistor and supports direct µP interface |
| Reset Timeout Delay | Externally set via SRT capacitor (tRP = 2.71×10⁶ × CSRT + 275µs) - provides design flexibility from sub-millisecond to seconds |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial embedded applications |
| VCC Range | 1.0V to 5.5V - guarantees valid RESET logic even during brownout down to 1V supply |
| MR Input | Internal 20kΩ pullup, 1µs minimum pulse width - allows simple momentary switch implementation without debounce circuitry |
Pinout & Package
SOT23-5 package: 5-pin surface-mount, 1.6mm × 2.9mm footprint, lead-free (RoHS-compliant) option available as MAX6413UK23+T.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-high push-pull reset output | Drives µP reset pin directly; sinks up to 3.2mA or sources up to 800µA; valid for VCC ≥ 1V |
| 2 - GND | Ground reference | Common return path for all internal circuits and external capacitor (SRT) |
| 3 - MR | Manual reset input | Logic-low active; internally pulled up to VCC (20kΩ); initiates reset when asserted |
| 4 - SRT | Set reset timeout input | Connects to external timing capacitor; 240nA constant-current source charges CSRT to 0.65V reference |
| 5 - VCC | Supply voltage and monitored rail | Powers device and serves as primary monitored voltage; reset triggered if < 2.313V |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed VCC threshold | 2.313V with ±1.25% initial accuracy - eliminates external resistor divider and calibration effort |
| Capacitor-adjustable timeout | Programmable delay from ~275µs to >1s using standard ceramic capacitor - replaces fixed-delay supervisors |
| Low-power operation | 1.7µA typical ICC - extends battery life in portable medical and sensor nodes |
| Guaranteed reset validity | RESET functional down to VCC = 1V - prevents undefined µP state during deep brownout |
| Power-supply transient immunity | Rejects 50µs transients ≤100mV below threshold - improves robustness in noisy automotive environments |
Applications
| Automotive Engine Control Unit (ECU) | Portable Medical Monitor |
|---|---|
Use Scenario: Monitors 3.3V microcontroller supply in engine management system exposed to wide temperature and load dump transients. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to ARM Cortex-M7 during cold cranking (VCC dip to 2.1V) and post-recovery timeout. Use Value: Prevents code execution errors during 12V battery sag; ±2.5% threshold tolerance ensures consistent trip point across −40°C to +125°C. | Use Scenario: Powers on/off sequence control in handheld blood glucose meter with CR2032 coin cell. IC Role / Device Role / Timing Role: Ensures clean µP reset at power-up and manual restart via tactile switch on MR pin. Use Value: 1.7µA quiescent current enables >5-year shelf life; SOT23-5 footprint minimizes PCB area in compact enclosure. |
| Industrial PLC I/O Module | Battery-Powered Wireless Sensor Node |
Use Scenario: Supervises 2.5V FPGA configuration voltage in DIN-rail mounted controller subject to EFT bursts. IC Role / Device Role / Timing Role: Detects VCC droop below 2.313V and holds RESET high for 200ms (CSRT = 68nF) to allow stable FPGA initialization. Use Value: Push-pull output drives FPGA's active-high PROG_B pin directly; no external pullup required. | Use Scenario: Enables reliable wake-up and reset sequencing in LoRaWAN node powered by Li-SOCl₂ battery. IC Role / Device Role / Timing Role: Monitors main 3.6V rail and triggers controlled µP restart after deep sleep exit or low-battery warning. Use Value: Valid RESET down to VCC = 1V ensures deterministic behavior during final battery discharge phase. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6413UK24-T | 2.400V fixed VCC threshold (±2.5%), otherwise identical pinout, timing, and features | Used where system requires higher reset threshold to accommodate 2.5V rail tolerance stack-up | Select when nominal VCC is 2.5V ±5% and margin against false reset is critical |
| TLV803EB23DBVR | 2.32V threshold, open-drain output, no manual reset, 0.8µA IQ, SOT23-3 package | Lacks MR input and adjustable timeout; suited for space-constrained, ultra-low-IQ applications without manual intervention | Choose only if MR and programmable delay are unnecessary and PCB area is premium |
Compared with MAX6413UK23-T, the MAX6413UK24-T offers a 87mV higher threshold for tighter 2.5V rail supervision, while TLV803EB23DBVR trades MR functionality and timeout adjustability for lower IQ and smaller footprint-making it suitable only for simplified, fixed-delay use cases.
Availability
MAX6413UK23-T is available at Aetrix Electronics and suitable for automotive engine control units, portable medical monitors, industrial PLC modules, battery-powered wireless sensor nodes, and intelligent instrumentation requiring stable component supply across extended temperature ranges.
Supply support for MAX6413UK23-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 industrial, automotive, communications, and computing markets.
The MAX6412–MAX6420 product line delivers configurable, low-power µP reset supervisors with factory-trimmed or adjustable thresholds and capacitor-programmable timeout-targeting applications demanding reliability under voltage transients and extended temperature operation.
FAQ
What is the exact reset threshold voltage of the MAX6413UK23-T?
The MAX6413UK23-T has a factory-trimmed VCC reset threshold of 2.313V (typical), with ±1.25% accuracy at +25°C and ±2.5% over the full −40°C to +125°C operating range. This value is confirmed in Table 1 of the datasheet (suffix "23") and verified in the Electrical Characteristics table under VTH parameter conditions.
Does the MAX6413UK23-T support manual reset functionality?
Yes, the MAX6413UK23-T includes a dedicated MR (manual reset) input on Pin 3. It features an internal 20kΩ pullup resistor, allowing direct connection of a normally open momentary switch to ground. Reset is asserted when MR is pulled low and remains active for the full capacitor-programmed timeout period after release.
What package type and dimensions does the MAX6413UK23-T use?
The MAX6413UK23-T is housed in a RoHS-compliant SOT23-5 package (package code U5-2), measuring 1.6mm × 2.9mm with 0.95mm height. Land pattern number 90-0174 and outline 21-0057 are specified by Maxim; the device is supplied in tape-and-reel format only.
How is the reset timeout period set on the MAX6413UK23-T?
The reset timeout period on the MAX6413UK23-T is set by connecting an external capacitor (CSRT) between Pin 4 (SRT) and ground. The delay follows tRP = (2.71 × 10⁶) × CSRT + 275µs, where tRP is in seconds and CSRT in farads. A 68nF ceramic capacitor yields ~200ms timeout, as shown in typical operating characteristics.
Is the MAX6413UK23-T suitable for automotive applications?
Yes, the MAX6413UK23-T is fully specified from −40°C to +125°C and features power-supply transient immunity (rejects 50µs glitches ≤100mV below threshold), making it suitable for under-hood automotive applications. While not AEC-Q200 certified out-of-box, its temperature rating and robustness align with Tier-2 automotive subsystem requirements.
MAX6413UK23-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.313V
- 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
MAX6413UK23-T FAQ
1.How can I place an order for MAX6413UK23-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6413UK23-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 MAX6413UK23-T reliable?
The price and inventory of MAX6413UK23-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6413UK23-T is usually 5 days.
3.What payment methods are accepted for MAX6413UK23-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6413UK23-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6413UK23-T?
MAX6413UK23-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6413UK23-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 MAX6413UK23-T?
For technical support, including MAX6413UK23-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6413UK23-T requirements.
6.How does Aetrix verify that MAX6413UK23-T is sourced from the original manufacturer or authorized distributors?
All MAX6413UK23-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 MAX6413UK23-T meets industry standards.
7.What is the process for return or replacement of MAX6413UK23-T?
All MAX6413UK23-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6413UK23-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 MAX6413UK23-T part is unused and in its original packaging.
Return procedure for MAX6413UK23-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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