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Analog Devices Inc./Maxim Integrated MAX6467XS29D3
- Part No.:
- MAX6467XS29D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6467XS29D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,170
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Product details
Overview
MAX6467XS29D3 from Maxim Integrated is a microprocessor supervisory reset circuit in SC70-4 package that monitors +2.925V supply voltage with ±2.5% threshold accuracy over -40°C to +125°C, asserts active-low open-drain RESET on undervoltage or edge-triggered manual reset, and provides 150ms (min) reset timeout - used in automotive infotainment power sequencing.
For engineers reviewing the MAX6467XS29D3 datasheet, MAX6467XS29D3 pinout, MAX6467XS29D3 application, or MAX6467XS29D3 equivalent, this page delivers verified electrical parameters, factory-trimmed threshold behavior, MR debounce timing, VCC-to-RESET delay, and open-drain output drive capability under automotive temperature conditions.
Technical Context
The MAX6467XS29D3 implements a precision bandgap-based voltage reference with factory-trimmed threshold of 2.852V (min) / 2.925V (typ) / 2.998V (max) at -40°C to +85°C, and ±3% tolerance at +85°C to +125°C. Its edge-triggered manual reset input ignores switch bounce via internal 150ms rising-edge debounce window.
It features an open-drain RESET output valid down to VCC = +1V, with VOL ≤ 0.3V at ISINK = 80µA, and supply current as low as 3µA at VCC = +1.8V. Reset assertion occurs within 35µs after VCC falls through threshold, and RESET remains asserted for ≥150ms after VCC recovery or MR falling edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.852V (min) / 2.925V (typ) / 2.998V (max); precisely monitors +3.0V rail with ±2.5% tolerance across industrial temp range |
| VCC Operating Range | +1.2V to +5.5V; supports operation down to 1.2V while maintaining reset validity to +1V |
| Reset Timeout Period | 150ms (min) / 300ms (max); ensures sufficient hold time for µP initialization on power-up or brownout recovery |
| Supply Current | 3µA (typ) at VCC = +1.8V; enables ultra-low-power use in battery-backed systems |
| MR Debounce Period | 150ms (min); prevents false resets from mechanical switch bounce without external RC network |
| VCC-to-RESET Delay | 35µs (max); fast response to supply droop ensures timely system reset before logic corruption |
| Output Type | Active-low open-drain; requires external pullup for system-level RESET line termination |
Pinout & Package
MAX6467XS29D3 is housed in a 4-pin SC70-4 package (2.0mm × 2.1mm × 0.9mm), optimized for space-constrained automotive and portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal biasing and RESET sink current; must be low-impedance connection to system ground plane |
| 2 RESET | Open-drain reset output | Asserts low during VCC undervoltage or MR edge; requires external pullup resistor (typically 10kΩ–100kΩ) to host VCC or dedicated reset rail |
| 3 MR | Edge-triggered manual reset input | Falling edge initiates one-shot 150ms RESET pulse; internally pulled up to VCC (~1.5kΩ); compatible with pushbutton-to-GND interface |
| 4 VCC | Power and monitored supply input | Supplies device and serves as monitored rail; bypass with 0.1µF ceramic capacitor to GND for noise immunity and transient rejection |
Key Features
| Feature | Design Value |
|---|---|
| Precision factory-set threshold | 2.925V typ with ±2.5% tolerance over -40°C to +85°C eliminates calibration and external resistor divider |
| Edge-triggered MR with one-shot timing | Guarantees single 150ms RESET pulse per button press regardless of press duration or contact bounce |
| Immunity to short VCC transients | Rejects glitches ≤100ns wide when VCC dips ≤100mV below threshold - critical for noisy automotive power rails |
| Low-VCC operation support | RESET remains valid down to VCC = +1V, enabling reliable reset assertion during deep brownout conditions |
| Ultra-low quiescent current | 3µA at +1.8V allows integration into always-on subsystems without compromising battery life |
Applications
| Automotive Infotainment | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Power sequencing of DSP, display controller, and CAN transceiver during vehicle ignition cycle. IC Role / Device Role / Timing Role: Supervises +3.0V domain and triggers synchronized reset across multiple ICs via shared open-drain RESET bus. Use Value: Prevents firmware lockup during cold-cranking voltage sag by asserting RESET within 35µs and holding ≥150ms until stable 3.0V rail is restored. |
Use Scenario: Reliable restart after AC power interruption in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Monitors isolated +3.3V auxiliary supply feeding FPGA configuration memory and real-time clock. Use Value: Ensures deterministic boot state by guaranteeing RESET remains asserted until VCC recovers fully above 2.925V and stabilizes for ≥150ms. |
| Portable Medical Monitor | DSL Modem Power Management |
|
Use Scenario: Battery-powered ECG front-end with low-power sleep mode and wake-on-event functionality. IC Role / Device Role / Timing Role: Provides fail-safe reset during Li-ion battery discharge below 3.0V cutoff, interfacing directly with µP's reset pin. Use Value: Draws only 3µA during sleep, extends runtime, and guarantees clean reset initiation even at VCC = +1.8V before shutdown. |
Use Scenario: Dual-rail power supervision (+3.3V core, +1.8V PHY) in residential broadband gateway with thermal throttling. IC Role / Device Role / Timing Role: Dedicated MAX6467XS29D3 monitors +3.3V supply to DSP subsystem; MR tied to thermal fault signal. Use Value: Converts thermal shutdown event into precise 150ms reset pulse - avoids race conditions between analog and digital power domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6315US29D3 | Same 2.925V threshold and 150ms timeout, but SOT143-4 package (larger footprint, higher thermal resistance) | Preferred where board layout accommodates larger 4-pin SOT package and higher power dissipation is acceptable | Select when legacy PCB layout uses SOT143 or thermal margin exceeds SC70 limits at +125°C ambient |
| TLV803EB29DBZR | 2.93V threshold, 140ms min timeout, push-pull output, lower ICC (0.5µA), but only rated to +105°C | Suitable for commercial/industrial temperature grade designs where extended automotive temp range is not required | Choose for cost-sensitive consumer applications needing ultra-low ICC and simplified pullup-free RESET interface |
Compared with MAX6467XS29D3, MAX6315US29D3 offers identical electrical specs in a larger package ideal for thermal-heavy environments, while TLV803EB29DBZR trades automotive temperature rating and open-drain flexibility for lower power and push-pull convenience in non-automotive systems.
Availability
MAX6467XS29D3 is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC modules, and portable medical monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6467XS29D3 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 high-performance analog and mixed-signal ICs for demanding applications including automotive, industrial, and communications systems.
The MAX6467/MAX6468 family delivers precision, low-power, automotive-grade supervisory circuits targeting power integrity assurance in safety-critical embedded control systems.
FAQ
What is the exact reset threshold voltage of MAX6467XS29D3 and how does it vary with temperature?
The MAX6467XS29D3 has a factory-trimmed reset threshold of 2.852V (min), 2.925V (typ), and 2.998V (max) over -40°C to +85°C, with ±3% tolerance from +85°C to +125°C. This corresponds to monitoring a nominal +3.0V supply with guaranteed margin against ripple and drift. The MAX6467XS29D3 maintains this specification across its full automotive temperature range without external calibration.
Does MAX6467XS29D3 require an external pullup resistor on the RESET pin?
Yes, MAX6467XS29D3 features an active-low open-drain RESET output and requires an external pullup resistor (typically 10kΩ to 100kΩ) to a valid logic-high voltage rail. This configuration allows wired-OR connection with other reset sources and ensures proper voltage level translation across different supply domains. The MAX6467XS29D3 datasheet specifies no internal pullup on RESET.
How does the manual reset (MR) input behave on MAX6467XS29D3 during switch bounce?
The MR input of MAX6467XS29D3 is edge-triggered and includes built-in 150ms rising-edge debounce. After a valid falling edge initiates reset, subsequent MR transitions within the 150ms window are ignored - eliminating need for external RC filtering. This ensures exactly one 150ms RESET pulse per button press, regardless of mechanical contact chatter. The MAX6467XS29D3 achieves this with no external components.
What is the minimum VCC voltage at which MAX6467XS29D3 guarantees valid RESET output operation?
MAX6467XS29D3 guarantees valid RESET output behavior down to VCC = +1V. Below this, the internal circuitry cannot maintain specified VOL or timing. This feature enables robust reset assertion during deep brownout events common in automotive stop-start systems. The MAX6467XS29D3 continues to assert RESET low as long as VCC stays above +1V, even if the monitored supply collapses further.
Can MAX6467XS29D3 be used in place of MAX811 in existing designs?
MAX6467XS29D3 is explicitly pin-compatible with MAX811 per manufacturer documentation, sharing identical SC70-4 pinout (VCC, GND, RESET, MR) and functional behavior for +3.0V supervision. However, MAX6467XS29D3 offers tighter threshold tolerance (±2.5% vs. ±3.5%), lower ICC (3µA vs. 12µA), and improved MR debounce. The MAX6467XS29D3 drop-in replacement is validated for automotive temperature operation where MAX811 may be limited to +85°C.
MAX6467XS29D3 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:
- Open Drain or Open Collector
- 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
MAX6467XS29D3 FAQ
1.How can I place an order for MAX6467XS29D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6467XS29D3 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 MAX6467XS29D3 reliable?
The price and inventory of MAX6467XS29D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6467XS29D3 is usually 5 days.
3.What payment methods are accepted for MAX6467XS29D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6467XS29D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6467XS29D3?
MAX6467XS29D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6467XS29D3 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 MAX6467XS29D3?
For technical support, including MAX6467XS29D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6467XS29D3 requirements.
6.How does Aetrix verify that MAX6467XS29D3 is sourced from the original manufacturer or authorized distributors?
All MAX6467XS29D3 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 MAX6467XS29D3 meets industry standards.
7.What is the process for return or replacement of MAX6467XS29D3?
All MAX6467XS29D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6467XS29D3, 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 MAX6467XS29D3 part is unused and in its original packaging.
Return procedure for MAX6467XS29D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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