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Analog Devices Inc./Maxim Integrated MAX6468XS29D3+T
- Part No.:
- MAX6468XS29D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6468XS29D3+T.pdf
- Description:
- IC MPU/RESET CIRC 2.925V SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:28,863
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Product details
Overview
The MAX6468XS29D3+T from Analog Devices is a push-pull output microprocessor supervisory reset circuit in SC70-4 package, monitoring +2.925V supply with ±1.5% threshold accuracy at +25°C, 150ms minimum reset timeout, and guaranteed operation down to VCC = +1V. It provides edge-triggered manual reset with one-shot pulsed output and is AEC-Q100 qualified for automotive applications.
For engineers reviewing the MAX6468XS29D3+T datasheet, MAX6468XS29D3+T pinout, MAX6468XS29D3+T application, or MAX6468XS29D3+T equivalent, this page delivers verified electrical parameters, thermal specifications across -40°C to +125°C, reset timing behavior under voltage transients, and validated alternative options for system-level reliability design.
Technical Context
The MAX6468XS29D3+T implements a precision bandgap-based voltage reference with factory-trimmed threshold of 2.925V (min), 3.000V (typ), 3.075V (max) for +3.0V supply monitoring. Its internal one-shot timer generates fixed 150ms–300ms reset pulses on both VCC brownout and MR falling-edge events.
It features an active-low push-pull RESET output capable of sourcing 500µA at VCC ≥ +2.5V (VOH ≥ 0.8 × VCC) and sinking 3.2mA at VCC ≥ +4.5V (VOL ≤ 0.3V), with MR input debounced for 150ms after rising edge to suppress switch bounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.925V (min) / 3.000V (typ) / 3.075V (max); precisely monitors +3.0V rail with ±1.5% tolerance at +25°C |
| VCC Operating Range | +1.0V to +5.5V; ensures valid RESET assertion down to VCC = +1V, critical for low-voltage brownout detection |
| Reset Timeout Period | 150ms (min) / 225ms (typ) / 300ms (max); fixed delay prevents premature µP release during power recovery |
| Supply Current | 3µA at VCC = +1.8V; enables ultra-low-power operation in battery-powered systems |
| MR Input Voltage Levels | VIL ≤ 0.3 × VCC (VTH < +4V); VIH ≥ 0.7 × VCC (VTH < +4V); compatible with TTL/CMOS logic without level shifters |
| Operating Temperature | -40°C to +125°C; qualified per AEC-Q100 for under-hood automotive use |
| Package | SC70-4 (X4+1 outline); 1.25mm × 0.85mm footprint supports high-density PCB layouts |
Pinout & Package
SC70-4 package: 1.25mm × 0.85mm body, 0.65mm pitch, lead(Pb)-free/RoHS-compliant +T tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and RESET output sink path |
| 2 | RESET | Active-low push-pull output; drives low for 150–300ms on VCC drop or MR falling edge; no external pullup required |
| 3 | MR | Edge-triggered manual reset input; internal 1.5kΩ pullup to VCC; ignores bounce within 150ms debounce window |
| 4 | VCC | Power supply input and monitored voltage rail; bypass with 0.1µF capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 2.925V threshold | Eliminates external resistor divider; reduces BOM count and layout area for +3.0V supply supervision |
| Edge-triggered MR with one-shot | Ensures single, deterministic reset pulse regardless of pushbutton hold duration; removes need for external debounce RC |
| 150ms minimum reset timeout | Guarantees µP reset duration exceeds typical boot initialization time across temperature and voltage corners |
| Push-pull RESET output | Drives high actively (VOH ≥ 0.8×VCC) without external pullup; simplifies interface to µP reset inputs requiring defined high state |
| AEC-Q100 qualification | Validated for automotive-grade reliability including HTOL, TC, ESD, and latch-up testing per stress conditions |
Applications
| Automotive Body Control Module | Industrial PLC I/O Card |
|---|---|
Use Scenario: Supervises 3.0V microcontroller power rail in door module ECUs exposed to load dump and cold-crank conditions. IC Role / Device Role / Timing Role: Monitors VCC and asserts active-low RESET to halt MCU execution during undervoltage; provides 150ms–300ms reset hold time for safe firmware restart. Use Value: Prevents erratic MCU behavior during battery voltage sag; AEC-Q100 qualification ensures operation across -40°C to +125°C ambient. | Use Scenario: Ensures reliable reboot of ARM-based controller on programmable logic controller backplane during AC line interruption. IC Role / Device Role / Timing Role: Detects 3.0V supply collapse and triggers deterministic reset pulse; MR input allows field-service technician to initiate controlled restart via front-panel button. Use Value: Push-pull output eliminates external pullup resistor; 3µA quiescent current extends backup battery life during mains outage. |
| Medical Infusion Pump Controller | DSL Modem Power Management |
Use Scenario: Guards safety-critical ARM Cortex-M4 running pump motor control firmware against brownout-induced memory corruption. IC Role / Device Role / Timing Role: Provides fail-safe reset signal when 3.0V rail drops below 2.925V; RESET remains valid down to VCC = +1V to cover deep discharge scenarios. Use Value: Factory-trimmed threshold eliminates calibration step; 150ms timeout exceeds worst-case MCU boot sequence duration. | Use Scenario: Manages reset sequencing for dual-core SoC in broadband access equipment operating from 3.3V/3.0V rails. IC Role / Device Role / Timing Role: Supervises 3.0V domain and synchronizes reset assertion with upstream 3.3V supervisor via MR chaining. Use Value: Edge-triggered MR enables clean reset propagation across voltage domains; SC70-4 package saves space on dense modem PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6384US29D3+T | Same SC70-4 package, identical 2.925V threshold and 150ms timeout, but open-drain RESET output | Requires external pullup resistor; less suitable where µP reset input demands defined high state during normal operation | Select MAX6384US29D3+T only if system already uses open-drain bus architecture or shares RESET line with multiple devices |
| TPS3808G30DBVR | 3.0V threshold (±0.5%), 200ms timeout, SOT-23-5 package, higher ICC (8µA typ), no MR debounce | Lacks MR edge-triggering and bounce suppression; requires external RC filter for pushbutton interface | Choose TPS3808G30DBVR when tighter threshold accuracy is prioritized over manual reset robustness and ultra-low ICC |
Compared with MAX6468XS29D3+T, MAX6384US29D3+T offers identical supervision specs but mandates external pullup, while TPS3808G30DBVR trades MR reliability and 3µA ICC for ±0.5% threshold precision-making MAX6468XS29D3+T optimal for automotive and battery-sensitive designs requiring deterministic manual reset.
Availability
MAX6468XS29D3+T is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O cards, medical infusion pump controllers, and DSL modem power management requiring stable component supply across extended temperature ranges.
Supply support for MAX6468XS29D3+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
Analog Devices is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The MAX6467/MAX6468 product line delivers automotive-grade microprocessor supervisory circuits with factory-trimmed thresholds, edge-triggered manual reset, and push-pull/open-drain output flexibility for mission-critical power monitoring.
FAQ
What is the exact reset threshold voltage of the MAX6468XS29D3+T?
The MAX6468XS29D3+T has a factory-trimmed reset threshold of 2.925V (minimum), 3.000V (typical), and 3.075V (maximum) at +25°C, with ±2.5% tolerance over -40°C to +85°C and ±3% over +85°C to +125°C. This precise 3.0V monitoring capability eliminates external resistor networks and ensures compatibility with standard +3.0V microcontroller supply rails.
Does the MAX6468XS29D3+T require an external pullup resistor on the RESET pin?
No, the MAX6468XS29D3+T features a push-pull RESET output, so it actively drives both high and low states without needing an external pullup resistor. This differs from the open-drain MAX6467 variant and simplifies interface design where the microcontroller reset input requires a defined high-level voltage during normal operation.
What is the MR debounce period for the MAX6468XS29D3+T?
The MAX6468XS29D3+T implements a 150ms (minimum) to 300ms (maximum) MR rising debounce period, during which subsequent falling edges on the MR input are ignored after the first valid reset assertion. This built-in timing prevents false resets caused by mechanical switch bounce, eliminating the need for external RC filtering or firmware debouncing logic.
Can the MAX6468XS29D3+T operate reliably at VCC = +1.2V?
Yes, the MAX6468XS29D3+T guarantees full functionality-including accurate threshold detection and valid RESET output assertion-down to VCC = +1.0V. At +1.2V, it draws only ~4µA supply current and maintains specified reset timing, making it suitable for deep brownout detection in battery-backed systems where voltage may decay below nominal levels.
Is the MAX6468XS29D3+T qualified for automotive applications?
Yes, the MAX6468XS29D3+T is AEC-Q100 qualified for automotive use, rated for operation from -40°C to +125°C, and supplied in lead(Pb)-free/RoHS-compliant +T tape-and-reel packaging. Its qualification covers stress tests including high-temperature operating life, temperature cycling, and electrostatic discharge-ensuring reliability in under-hood and infotainment environments.
MAX6468XS29D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.925V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6468XS29D3+T FAQ
1.How can I place an order for MAX6468XS29D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6468XS29D3+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 MAX6468XS29D3+T reliable?
The price and inventory of MAX6468XS29D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6468XS29D3+T is usually 5 days.
3.What payment methods are accepted for MAX6468XS29D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6468XS29D3+T transactions.
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4.How is shipping managed for MAX6468XS29D3+T?
MAX6468XS29D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6468XS29D3+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 MAX6468XS29D3+T?
For technical support, including MAX6468XS29D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6468XS29D3+T requirements.
6.How does Aetrix verify that MAX6468XS29D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6468XS29D3+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 MAX6468XS29D3+T meets industry standards.
7.What is the process for return or replacement of MAX6468XS29D3+T?
All MAX6468XS29D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6468XS29D3+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 MAX6468XS29D3+T part is unused and in its original packaging.
Return procedure for MAX6468XS29D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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