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Analog Devices Inc./Maxim Integrated MAX6384XS29D3+T
- Part No.:
- MAX6384XS29D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS29D3+T.pdf
- Description:
- IC MPU/RESET CIRC 2.93V SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,443
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Product details
Overview
MAX6384XS29D3+T from Maxim Integrated is a low-power microprocessor supervisory circuit with factory-set 2.93V reset threshold, 140ms minimum VCC reset timeout, and active-low push-pull reset output. It monitors +1.8V to +5.0V supply rails, consumes only 3μA at +1.8V, and guarantees valid reset state down to VCC = 1V. It is used in portable battery-powered equipment requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6384XS29D3+T datasheet, MAX6384XS29D3+T pinout, MAX6384XS29D3+T application, or MAX6384XS29D3+T equivalent, key selection criteria include reset threshold accuracy (±2.5% over –40°C to +125°C), manual reset input with internal 63kΩ pullup, 4-pin SC70 package footprint, and immunity to negative-going VCC transients.
Technical Context
The MAX6384XS29D3+T implements a precision bandgap-based voltage comparator for VCC monitoring and an internal monostable timer for reset assertion timing. Its reset logic asserts low on VCC drop below 2.93V and holds for ≥140ms after VCC recovers above threshold.
It features a debounced manual reset input (MR) with TTL/CMOS-compatible thresholds and internal 63kΩ pullup resistor; MR assertion forces reset independently of VCC level. The push-pull output drives high-impedance loads without external pullup and remains functional down to VCC = 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V nominal (±2.5% over –40°C to +125°C); ensures reliable detection of 3.3V rail brownout |
| VCC Reset Timeout | 140ms minimum; guarantees μP initialization completes before code execution resumes |
| Supply Current | 3μA at +1.8V; enables multi-year operation in coin-cell–powered IoT sensors |
| Output Type | Active-low push-pull; eliminates need for external pullup resistor and supports direct connection to μP RESET pin |
| Manual Reset Input | MR with 63kΩ internal pullup; allows momentary switch interface without external components |
| Operating Voltage Range | +1.0V to +5.5V; supports valid reset assertion during deep brownout and compatibility with 1.2V–5V systems |
| Reset Output Validity | Guaranteed down to VCC = 1V; prevents metastability during power collapse |
Pinout & Package
MAX6384XS29D3+T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm, suitable for space-constrained portable designs.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail; powers internal circuitry and sets reset detection reference |
| 2 | RESET | Active-low push-pull output; drives low during reset condition and high otherwise; sinks/source current up to 20mA |
| 3 | MR | Active-low manual reset input; initiates reset when pulled ≤0.3×VCC; internal 63kΩ pullup to VCC |
| 4 | GND | Analog and digital ground reference; must be connected to system ground plane for accurate threshold sensing |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 2.93V reset threshold | Eliminates external resistor divider; reduces BOM count and layout area in 3.3V systems |
| 140ms minimum reset timeout | Meets JEDEC JESD8-12B requirement for 3.3V μP power-up stabilization time |
| Debounced manual reset input | Accepts noisy mechanical switch inputs without external RC filtering or firmware debounce |
| 3μA supply current at +1.8V | Enables use in always-on battery-backed real-time clocks and low-duty-cycle sensor nodes |
| –40°C to +125°C operating range | Supports industrial and automotive under-hood applications without derating |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Wearable ECG patch with coin-cell battery and ultra-low-power MCU. IC Role / Device Role / Timing Role: Monitors 3.3V LDO output and asserts reset during battery sag or cold-start. Use Value: Prevents firmware crash during 100ms VCC dip; 3μA quiescent current extends battery life to >2 years. |
Use Scenario: DIN-rail mounted analog input module exposed to 40V transients and wide ambient temperature swings. IC Role / Device Role / Timing Role: Supervises 5V system rail and provides fail-safe reset during power interruption. Use Value: ±2.5% threshold accuracy ensures consistent trip point across –40°C to +85°C; 140ms timeout accommodates slow LDO recovery. |
| Smart Meter Communication Units | Automotive Body Control Modules |
|
Use Scenario: NB-IoT-enabled electricity meter with intermittent RF transmission causing supply ripple. IC Role / Device Role / Timing Role: Detects sub-100ms dips on 3.3V rail and blocks MCU execution until stable. Use Value: Negative-going transient immunity prevents spurious resets during GSM burst noise; 4-pin SC70 eases routing in dense meter PCBs. |
Use Scenario: 12V-to-3.3V powered BCM controlling door locks and lighting, subject to load-dump events. IC Role / Device Role / Timing Role: Provides AEC-Q100–compliant reset supervision for ASIL-B subsystems. Use Value: Valid reset output down to VCC = 1V ensures deterministic behavior during severe brownout; MR pin enables diagnostic reset via CAN command. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR29D3+T | Same 2.93V threshold and 140ms timeout, but no manual reset input; 3-pin SC70 package | Lacks MR functionality; unsuitable where field-service reset is required | Select when board space is critical and manual reset is unnecessary |
| TPS3808G33DBVR | 2.93V threshold, 200ms timeout, 1.8V–6.0V VCC range, 1.6μA typical ICC at 3.3V | Lower quiescent current but requires external pullup for open-drain output; no integrated MR pullup | Choose for ultra-low-power applications where external components are acceptable |
Compared with MAX6384XS29D3+T, MAX6326XR29D3+T saves board area but removes reset control flexibility, while TPS3808G33DBVR offers lower ICC at the cost of added external components and reduced integration.
Availability
MAX6384XS29D3+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial PLC I/O modules, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for MAX6384XS29D3+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, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAX6381–MAX6390 family delivers single/dual low-voltage, low-power μP reset circuits optimized for space-constrained, battery-sensitive applications demanding high accuracy and robust transient immunity.
FAQ
What is the exact reset threshold voltage of MAX6384XS29D3+T?
The MAX6384XS29D3+T has a factory-set nominal reset threshold of 2.93V, with guaranteed tolerance of ±2.5% over the full operating temperature range (–40°C to +125°C). This value is confirmed in the Reset Thresholds table of the datasheet and applies specifically to the "29" suffix in the part number.
Does MAX6384XS29D3+T support manual reset functionality?
Yes, MAX6384XS29D3+T includes a debounced manual reset input (MR) with an internal 63kΩ pullup resistor to VCC. Driving MR low forces an immediate reset, which remains asserted for the full 140ms timeout after MR is released - a feature confirmed in the General Description and Pin Description sections.
What package type and dimensions does MAX6384XS29D3+T use?
MAX6384XS29D3+T uses a 4-pin SC70 package (outline number 21-0098), measuring 2.0mm × 2.1mm × 0.95mm. This RoHS-compliant, lead-free package is explicitly listed in the Ordering Information table and supported by land pattern 90-0187.
How does MAX6384XS29D3+T behave during deep brownout conditions?
MAX6384XS29D3+T guarantees valid reset output state down to VCC = 1V. Its push-pull architecture maintains defined logic levels even as supply collapses, preventing metastability at the μP RESET pin - a specification verified in the Electrical Characteristics table under "Reset Output State Guaranteed Valid Down to VCC = 1V".
Is MAX6384XS29D3+T qualified for automotive applications?
No, MAX6384XS29D3+T is not automotive-qualified. The "/V" suffix denotes AEC-Q100 qualification, and this part number lacks that suffix. Automotive variants exist (e.g., MAX6384XS29D3/V+T), but MAX6384XS29D3+T is rated for industrial temperature range (–40°C to +125°C) without automotive stress testing or PPAP documentation.
MAX6384XS29D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6384XS29D3+T FAQ
1.How can I place an order for MAX6384XS29D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS29D3+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 MAX6384XS29D3+T reliable?
The price and inventory of MAX6384XS29D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS29D3+T is usually 5 days.
3.What payment methods are accepted for MAX6384XS29D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS29D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS29D3+T?
MAX6384XS29D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS29D3+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 MAX6384XS29D3+T?
For technical support, including MAX6384XS29D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS29D3+T requirements.
6.How does Aetrix verify that MAX6384XS29D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS29D3+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 MAX6384XS29D3+T meets industry standards.
7.What is the process for return or replacement of MAX6384XS29D3+T?
All MAX6384XS29D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS29D3+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 MAX6384XS29D3+T part is unused and in its original packaging.
Return procedure for MAX6384XS29D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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