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Analog Devices Inc./Maxim Integrated MAX6467US46D3+T
- Part No.:
- MAX6467US46D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6467US46D3+T.pdf
- Description:
- IC MPU/RESET CIRC 4.625V SOT143
- Quantity:
- Payment:
- Shipping:
Inventory:3,316
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Product details
Overview
The MAX6467US46D3+T from Analog Devices is a microprocessor supervisory reset circuit in SOT143-4 package, monitoring +4.625V supply with ±1.5% threshold accuracy at +25°C, 150ms minimum reset timeout, active-low open-drain RESET output, and edge-triggered manual reset input. It ensures reliable power-on reset and brownout detection in automotive-grade embedded systems.
For engineers reviewing the MAX6467US46D3+T datasheet, MAX6467US46D3+T pinout, MAX6467US46D3+T application, or MAX6467US46D3+T equivalent, this page delivers verified electrical parameters, automotive temperature range (-40°C to +125°C), factory-trimmed 4.625V threshold, MR debounce timing, and open-drain RESET behavior critical for system-level reset integrity.
Technical Context
The MAX6467US46D3+T implements a precision bandgap-based voltage reference and comparator to detect VCC falling below its factory-set 4.625V threshold (±1.5% at +25°C, ±3% over -40°C to +125°C). Its internal one-shot timer initiates a fixed 150ms–300ms reset pulse on VCC dropout or MR falling edge.
It features an internal 1.5kΩ MR pullup resistor, ignores switch bounce via 150ms rising-edge debounce window, and guarantees RESET validity down to VCC = +1V. The open-drain RESET output requires external pullup and sinks up to 80µA at 0.3V with VCC ≥ +1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.625V (typ), ±1.5% at +25°C - precisely monitors +5.0V rail with standard tolerance margin |
| Reset Timeout Period | 150ms (min) - meets minimum reset assertion time for most ARM Cortex-M and PIC microcontrollers |
| Supply Current | 3µA at VCC = +1.8V - enables ultra-low-power operation in battery-backed systems |
| Operating Temperature | -40°C to +125°C - AEC-Q100 qualified for under-hood automotive applications |
| RESET Output Type | Active-low open-drain - allows wired-OR configuration and flexible voltage-level translation |
| VCC Range | +1.0V to +5.5V - supports valid reset assertion even during deep brownout conditions |
| MR Input Logic | Edge-triggered with 150ms rising debounce - eliminates false resets from mechanical switch bounce |
Pinout & Package
Package: 4-pin SOT143 (U4+1 outline, 21-0052), surface-mount, lead-free/RoHS-compliant (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Primary return path for internal bias and RESET sink current; must be low-impedance connection |
| 2 RESET | Active-low open-drain output | Asserts low during VCC dropout or MR edge; requires external pullup resistor for logic-high level |
| 3 MR | Manual reset input | Falling-edge sensitive; internally pulled up to VCC with 1.5kΩ; debounced for 150ms after rising edge |
| 4 VCC | Power and monitored supply | Supplies device and serves as monitored rail; bypass with 0.1µF capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Precision factory-trimmed threshold | 4.625V ±1.5% at +25°C - eliminates need for external resistor divider or calibration |
| Edge-triggered MR with one-shot | Guarantees single 150ms–300ms RESET pulse per MR press, immune to contact chatter |
| Low quiescent current | 3µA at 1.8V - extends battery life in portable medical and telematics devices |
| VCC-operated RESET validity | RESET remains functional down to VCC = +1V - ensures deterministic reset release during power ramp-down |
| Automotive temperature range | Qualified from -40°C to +125°C - suitable for engine control units and ADAS domain controllers |
Applications
| Engine Control Unit (ECU) | Telematics Control Unit (TCU) |
|---|---|
Use Scenario: Monitors main 5V supply in automotive ECU during cold cranking and load dump events. IC Role / Device Role / Timing Role: Supervisory reset generator asserting active-low RESET to MCU upon VCC dip below 4.625V. Use Value: Prevents MCU lockup during transient brownouts by guaranteeing ≥150ms reset pulse aligned with ISO 16750-2 requirements. | Use Scenario: Ensures clean boot sequence in LTE-connected TCU after ignition cycle or firmware update. IC Role / Device Role / Timing Role: Edge-triggered manual reset supervisor coordinating power sequencing with modem and GPS subsystems. Use Value: Eliminates need for external debounce circuitry while maintaining AEC-Q100 compliance for safety-critical connectivity modules. |
| Industrial PLC I/O Module | Portable Medical Infusion Pump |
Use Scenario: Provides fail-safe reset during 24V-to-5V DC/DC converter instability in harsh factory environments. IC Role / Device Role / Timing Role: Voltage monitor and reset initiator interfacing directly with industrial-grade ARM microcontroller. Use Value: Factory-trimmed 4.625V threshold matches nominal 5V rail tolerance without calibration, reducing BOM count. | Use Scenario: Guarantees controlled MCU restart during battery swap or low-battery warning in Class II medical equipment. IC Role / Device Role / Timing Role: Ultra-low-power (3µA) reset supervisor enabling >5-year shelf life in standby mode. Use Value: Open-drain RESET allows shared reset bus across multiple safety-critical ICs with independent voltage 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 |
|---|---|---|---|
| MAX6386US46D3+T | Same 4.625V threshold and 150ms timeout, but push-pull RESET output (no external pullup required) | Better suited for systems requiring driven high-state RESET during normal operation | Select when board layout lacks space for pullup resistor or when driving capacitive loads >50pF |
| TLV809E46DBZR | 4.63V threshold, 140ms min timeout, 1.8V–6V VCC range, SOT-23-3 package | Lacks manual reset input; only VCC monitoring function | Choose when manual reset is unnecessary and smaller footprint or lower cost is prioritized |
Compared with MAX6467US46D3+T, MAX6386US46D3+T offers push-pull drive eliminating external components but shares identical timing and threshold specs, while TLV809E46DBZR reduces size and cost at the expense of MR functionality and automotive qualification.
Availability
MAX6467US46D3+T is available at Aetrix Electronics and suitable for automotive ECUs, telematics control units, and industrial PLC modules requiring stable component supply with AEC-Q100 qualification, extended temperature support, and precise 4.625V monitoring.
Supply support for MAX6467US46D3+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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX6467/MAX6468 product line delivers precision, low-power, automotive-grade supervisory circuits for reliable microprocessor reset generation in mission-critical embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX6467US46D3+T?
The MAX6467US46D3+T has a factory-trimmed typical reset threshold of 4.625V, with ±1.5% tolerance at +25°C and ±3% over the full -40°C to +125°C operating range. This value is confirmed in the Reset Threshold table of the official Analog Devices datasheet and corresponds to the "46" suffix in the part number.
Does the MAX6467US46D3+T include a manual reset input, and how does it behave?
Yes, the MAX6467US46D3+T includes an edge-triggered manual reset (MR) input on Pin 3. A falling edge initiates a one-shot 150ms–300ms active-low RESET pulse. Internal 150ms rising-edge debounce prevents false triggers from switch bounce, and an integrated 1.5kΩ pullup resistor allows MR to float if unused.
What type of RESET output does the MAX6467US46D3+T provide, and what design considerations apply?
The MAX6467US46D3+T provides an active-low open-drain RESET output on Pin 2. This requires an external pullup resistor to the target logic voltage. The output sinks up to 80µA at 0.3V with VCC ≥ +1V, and RESET remains valid down to VCC = +1V - a key advantage for brownout recovery.
Is the MAX6467US46D3+T qualified for automotive applications?
Yes, the MAX6467US46D3+T is AEC-Q100 qualified and specified for operation from -40°C to +125°C. Its SOT143 package, factory-trimmed threshold stability, and robust MR debounce make it suitable for engine control, body electronics, and ADAS subsystems where reliability under thermal stress is mandatory.
What is the supply current consumption of the MAX6467US46D3+T at different VCC levels?
The MAX6467US46D3+T draws 3µA typical at VCC = +1.8V, 4µA at +2.5V, 6µA at +3.6V, and 7µA at +5.5V. These values are measured with no load and reflect its ultra-low-power design - critical for battery-powered and energy-harvesting applications where standby current directly impacts operational lifetime.
MAX6467US46D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.625V
- 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-143-4
MAX6467US46D3+T FAQ
1.How can I place an order for MAX6467US46D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6467US46D3+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 MAX6467US46D3+T reliable?
The price and inventory of MAX6467US46D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6467US46D3+T is usually 5 days.
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Once your MAX6467US46D3+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 MAX6467US46D3+T?
For technical support, including MAX6467US46D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6467US46D3+T requirements.
6.How does Aetrix verify that MAX6467US46D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6467US46D3+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 MAX6467US46D3+T meets industry standards.
7.What is the process for return or replacement of MAX6467US46D3+T?
All MAX6467US46D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6467US46D3+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 MAX6467US46D3+T part is unused and in its original packaging.
Return procedure for MAX6467US46D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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