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Analog Devices Inc./Maxim Integrated MAX6467US26D3-T
- Part No.:
- MAX6467US26D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6467US26D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:324
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Product details
Overview
MAX6467US26D3-T from Maxim Integrated is a microprocessor supervisory reset circuit in SOT143-4 package, monitoring +2.625V supply (±1.5% at +25°C) with 150ms minimum reset timeout, active-low open-drain RESET output, and edge-triggered manual reset input. It ensures reliable power-on reset and brownout recovery in automotive-grade embedded systems operating from -40°C to +125°C.
For engineers reviewing the MAX6467US26D3-T datasheet, MAX6467US26D3-T pinout, MAX6467US26D3-T application, or MAX6467US26D3-T equivalent, this page delivers verified threshold voltage, MR debounce timing, VCC-to-RESET delay, supply current at 1.8V/2.5V/3.6V/5.5V, and open-drain leakage - all confirmed for the exact US26D3-T variant.
Technical Context
The MAX6467US26D3-T implements a precision bandgap-based voltage monitor with factory-trimmed reset threshold of 2.559V (min), 2.625V (typ), 2.691V (max) at +25°C, maintaining ±2.5% tolerance over -40°C to +85°C and ±3% up to +125°C. Its internal one-shot timer generates fixed 150ms–300ms reset pulses on both VCC dropout and MR falling edge.
It features an integrated 500Ω–3kΩ MR pullup resistor, 100ns MR glitch rejection, 200ns MR-to-RESET propagation delay, and RESET validity down to VCC = +1V. The open-drain output sinks 80µA at VOL ≤ 0.3V and exhibits ≤1µA leakage when deasserted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.625V (typ), 2.559V–2.691V (min/max); monitors +2.6V nominal supplies with ±1.5% accuracy at +25°C |
| Reset Timeout Period | 150ms (min), 225ms (typ), 300ms (max); guarantees µP reset hold time across full temperature range |
| Supply Current | 3µA (typ) at VCC = +1.8V; enables ultra-low-power operation in battery-backed systems |
| MR Debounce Period | 150ms (min); prevents false resets from mechanical switch bounce without external RC |
| Operating Voltage Range | +1.0V to +5.5V; supports wide-input systems including low-voltage logic and legacy 5V rails |
| Temperature Range | -40°C to +125°C; qualified for under-hood automotive and industrial control environments |
| Output Type | Active-low open-drain; requires external pullup, compatible with mixed-voltage I/O domains |
Pinout & Package
MAX6467US26D3-T uses the 4-pin SOT143-4 surface-mount package (3.0mm × 1.7mm × 1.3mm), optimized for space-constrained automotive and portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: GND | Ground reference | Return path for internal circuitry and RESET sink current; must be connected directly to system ground plane |
| 2: RESET | Open-drain reset output | Asserts low during VCC dropout or MR trigger; requires external pullup resistor (typically 10kΩ–100kΩ) |
| 3: MR | Edge-triggered manual reset input | Falling edge initiates one-shot 150ms–300ms reset pulse; internally pulled up to VCC (500–3000Ω) |
| 4: VCC | Power and monitored supply | Provides device bias and serves as monitored rail; bypass with 0.1µF capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Precision factory-set threshold | 2.625V ±1.5% at +25°C eliminates calibration and external resistive dividers |
| Edge-triggered MR with one-shot | Guarantees single 150ms–300ms reset pulse per button press, immune to contact bounce |
| VCC reset delay | 35µs typical response to VCC drop ensures fast detection of brownout events |
| Low supply current | 3µA at 1.8V enables >10-year battery life in always-on monitoring circuits |
| RESET validity to VCC = +1V | Maintains defined logic state down to near-dead-battery conditions for fail-safe shutdown |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Monitors 2.6V sensor bias rail in engine ECU during cold cranking where battery dips to 6V. IC Role / Device Role / Timing Role: Supervisory reset generator asserting active-low RESET to MCU upon VCC dropout below 2.559V. Use Value: Prevents MCU lockup during transient undervoltage; 150ms timeout ensures complete firmware reload before resuming CAN communication. |
Use Scenario: Ensures deterministic restart of ARM-based PLC controller after field wiring short causes 2.6V LDO collapse. IC Role / Device Role / Timing Role: Edge-triggered MR interface accepts momentary pushbutton input to force controlled reboot. Use Value: 150ms MR debounce eliminates spurious resets from relay contact chatter; open-drain RESET interfaces cleanly with 3.3V FPGA configuration logic. |
| Medical Infusion Pump Controller | DSL Modem Power Sequencing |
|
Use Scenario: Guards 2.6V microcontroller supply in battery-operated infusion pump with strict safety-critical boot validation. IC Role / Device Role / Timing Role: Primary reset supervisor asserting RESET until VCC stabilizes above 2.691V post-power-up. Use Value: 3µA quiescent current extends disposable battery life; RESET valid to +1V ensures last-resort shutdown before motor driver failure. |
Use Scenario: Coordinates power-up sequence between ADSL line driver (2.6V) and baseband processor (3.3V) in DSL modem. IC Role / Device Role / Timing Role: Reset timeout synchronizes enable timing to meet IEEE 1588 PTP clock initialization window. Use Value: Factory-trimmed 2.625V threshold eliminates need for external resistor network, reducing BOM count and layout area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX811SUR+T | Fixed 2.63V threshold, 140ms timeout, SOT143-4, push-pull output | Lacks MR edge-triggering; uses level-sensitive MR requiring external debouncing | Select when push-pull drive is required and MR debounce can be handled externally |
| TLV803EB26DBZR | 2.63V threshold, 200ms timeout, SOT23-3, open-drain, 0.5µA ICC | 3-pin package (no MR pin); manual reset not supported | Select for cost-sensitive, MR-free applications where only VCC monitoring is needed |
Compared with MAX811SUR+T and TLV803EB26DBZR, the MAX6467US26D3-T uniquely combines factory-trimmed 2.625V threshold, integrated MR debounce, and open-drain output in a 4-pin SOT143-enabling compact, robust reset control without external components or layout compromises.
Availability
MAX6467US26D3-T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC modules, medical infusion pumps, DSL modems, and GPS navigation systems requiring stable component supply across extended temperature ranges.
Supply support for MAX6467US26D3-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 high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets.
The MAX6467 family delivers precision, low-power supervisory circuits with factory-set thresholds and integrated manual reset timing-targeted at mission-critical embedded systems demanding guaranteed reset behavior across harsh thermal environments.
FAQ
What is the exact reset threshold voltage for MAX6467US26D3-T?
The MAX6467US26D3-T has a factory-trimmed reset threshold of 2.559V (minimum), 2.625V (typical), and 2.691V (maximum) at +25°C. This 2.625V nominal threshold is specifically calibrated to monitor +2.6V supply rails with ±1.5% initial accuracy, tightening to ±2.5% over -40°C to +85°C and ±3% up to +125°C per the datasheet's Electrical Characteristics table.
Does MAX6467US26D3-T support manual reset functionality?
Yes, the MAX6467US26D3-T includes a dedicated MR (Manual Reset) input pin that responds to falling edges with a one-shot 150ms–300ms active-low RESET pulse. Its internal 500Ω–3000Ω pullup resistor allows direct connection to a momentary switch to GND, and the 150ms rising-edge debounce period eliminates false triggers from mechanical bounce-no external components required for reliable manual reset operation.
What is the supply current consumption of MAX6467US26D3-T at different voltages?
The MAX6467US26D3-T draws 3µA (typical) at VCC = +1.8V, 4µA–8µA at +2.5V, 6µA–11µA at +3.6V, and 7µA–13µA at +5.5V. These values are measured with no load and represent total quiescent current across the full operating voltage range, enabling ultra-low-power supervision in battery-critical applications such as portable medical devices and automotive telematics.
Is MAX6467US26D3-T compatible with 1.8V logic systems?
Yes, the MAX6467US26D3-T operates down to VCC = +1.0V and maintains valid RESET output down to +1V, making it fully compatible with 1.8V logic domains. Its MR input accepts TTL/CMOS levels (VIL ≤ 0.3×VCC, VIH ≥ 0.7×VCC for VTH < +4V), and its open-drain RESET output interfaces seamlessly with 1.8V, 2.5V, or 3.3V pullup voltages-ensuring interoperability across mixed-voltage system architectures.
What package type and footprint does MAX6467US26D3-T use?
The MAX6467US26D3-T uses the 4-pin SOT143-4 package (package code U3+1, outline 21-0052), measuring 3.0mm × 1.7mm × 1.3mm with gull-wing leads. Its land pattern (90-0183) is standardized for automated assembly, and the device is RoHS-compliant with lead-free terminations-verified by Maxim's package documentation and widely supported by PCB design libraries for automotive and industrial layouts.
MAX6467US26D3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.625V
- 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:
- SOT-23-4
MAX6467US26D3-T FAQ
1.How can I place an order for MAX6467US26D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6467US26D3-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 MAX6467US26D3-T reliable?
The price and inventory of MAX6467US26D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6467US26D3-T is usually 5 days.
3.What payment methods are accepted for MAX6467US26D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6467US26D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6467US26D3-T?
MAX6467US26D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6467US26D3-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 MAX6467US26D3-T?
For technical support, including MAX6467US26D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6467US26D3-T requirements.
6.How does Aetrix verify that MAX6467US26D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6467US26D3-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 MAX6467US26D3-T meets industry standards.
7.What is the process for return or replacement of MAX6467US26D3-T?
All MAX6467US26D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6467US26D3-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 MAX6467US26D3-T part is unused and in its original packaging.
Return procedure for MAX6467US26D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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