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Analog Devices Inc./Maxim Integrated MAX6384LT29D1+T
- Part No.:
- MAX6384LT29D1+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
MAX6384LT29D1+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,542
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Product details
Overview
The MAX6384LT29D1+T from Maxim Integrated is a low-power microprocessor supervisory circuit with factory-set 2.93V reset threshold, 1ms minimum VCC reset timeout, active-low push-pull reset output, and debounced manual reset input (MR). 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 field-serviceable manual reset capability.
For engineers reviewing the MAX6384LT29D1+T datasheet, MAX6384LT29D1+T pinout, MAX6384LT29D1+T application, or MAX6384LT29D1+T equivalent, key selection criteria include its 2.93V ±2.5% threshold accuracy over –40°C to +125°C, 1ms reset timeout, MR input with internal 63kΩ pullup, SC70-4 package footprint, and compatibility with dual-voltage monitoring systems via external resistor networks.
Technical Context
This device implements a precision voltage comparator with ±2.5% threshold accuracy across temperature, coupled to a monostable timer that enforces a guaranteed minimum 1ms reset assertion after VCC recovers above 2.93V. The MR input features internal pullup and 1µs minimum pulse width support, enabling robust manual reset initiation without external components.
The active-low push-pull RESET output drives logic-compatible levels (VOL ≤ 0.3V at ISINK = 1.2mA, VOH ≥ 0.8×VCC at ISOURCE = 500µA) and remains functional down to VCC = 1V. Negative-going VCC transients are rejected up to 35µs duration when overdrive exceeds 100mV, per typical operating characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V nominal, ±2.5% over –40°C to +125°C - ensures consistent brownout detection across automotive and industrial temperature ranges |
| VCC Reset Timeout | 1ms minimum - provides sufficient hold time for microcontroller initialization on low-voltage power rails |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors and wearables |
| MR Input Pullup | 63kΩ internal resistor - eliminates need for external pullup while supporting TTL/CMOS logic drive |
| RESET Output Type | Active-low push-pull - delivers rail-to-rail logic levels without external pullup, reducing BOM count |
| Operating Voltage Range | +1.0V to +5.5V - supports direct interface with 1.2V, 1.8V, 2.5V, 3.3V, and 5V logic domains |
| Reset Propagation Delay | 35µs max (VCC falling) - ensures fast response to supply collapse during brownout events |
Pinout & Package
MAX6384LT29D1+T is packaged in a RoHS-compliant 4-pin SC70 (package code X4+1, outline 21-0098), measuring 2.0mm × 2.1mm × 0.95mm, suitable for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail - powers internal circuitry and serves as reference for reset threshold detection |
| 2 | RESET | Active-low push-pull output - asserts low during reset condition and returns high after timeout; sinks 1.2mA at 0.3V |
| 3 | MR | Active-low manual reset input - forces reset when pulled low; internally pulled up to VCC via 63kΩ resistor |
| 4 | GND | Analog and digital ground reference - must be connected directly to system ground plane for stable threshold accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.93V with ±2.5% tolerance over full temperature range - eliminates need for external calibration or trimming resistors |
| Debounced manual reset input | MR accepts sub-microsecond pulses and rejects noise via internal filtering - enables use of simple momentary switches without external RC networks |
| Ultra-low quiescent current | 3μA at 1.8V - extends battery life in always-on monitoring applications such as medical patches and asset trackers |
| Valid reset output down to VCC = 1V | Guaranteed logic-level RESET assertion even during deep brownout - prevents spurious MCU wake-up before stable supply recovery |
| Transient immunity | Rejects negative VCC glitches ≤35µs at 100mV overdrive - improves reliability in noisy power environments like motor-driven peripherals |
Applications
| Portable Power Management | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Coin-cell–powered environmental sensor node operating intermittently on 1.8V supply. IC Role / Device Role / Timing Role: Supervises VCC during wake-up cycles and asserts reset if supply sags below 2.93V during RF transmission burst. Use Value: Prevents firmware corruption by ensuring MCU starts only when supply meets minimum operating voltage, using just 3μA quiescent current. | Use Scenario: Handheld multimeter with dual 3.3V analog front-end and 1.2V display controller. IC Role / Device Role / Timing Role: Monitors main 3.3V rail and triggers 1ms reset pulse to synchronize both subsystems on power-up. Use Value: Eliminates need for separate reset generators per voltage domain, reducing component count and PCB area. |
| Industrial Controller Reset | Field-Serviceable Embedded System |
Use Scenario: Programmable logic controller (PLC) I/O module exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Provides temperature-stable 2.93V reset threshold with ±2.5% accuracy from –40°C to +125°C. Use Value: Ensures deterministic reset behavior across harsh industrial environments without recalibration or derating. | Use Scenario: Networked gateway device requiring technician-initiated reset without power cycling. IC Role / Device Role / Timing Role: Accepts momentary switch closure on MR pin to force 1ms reset pulse, independent of VCC status. Use Value: Enables safe, non-disruptive firmware recovery in deployed units - no hardware disassembly or power interruption needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR29D1+T | Same 2.93V threshold and 1ms timeout, but no MR input - push-pull active-low only | Lacks manual reset capability; requires external reset generator for field service | Select when MR functionality is unnecessary and cost minimization is critical |
| TPS3808G18DBVR | 2.93V threshold, 1ms timeout, active-low push-pull, but 1.5μA typical ICC at 1.8V - lower current than MAX6384LT29D1+T | Requires external pullup on MR (if used); not pin-compatible - different pinout and package (SOT-23-5) | Select when ultra-low current dominates design priority and layout revision is acceptable |
Compared with MAX6326XR29D1+T and TPS3808G18DBVR, the MAX6384LT29D1+T uniquely integrates MR with internal pullup in a 4-pin SC70, delivering field-serviceability without increasing board area or component count - making it optimal for compact, serviceable embedded systems.
Availability
MAX6384LT29D1+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, critical μP and μC power monitoring, and intelligent instrumentation requiring stable component supply and long-term production continuity.
Supply support for MAX6384LT29D1+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 demanding industrial, automotive, and computing applications.
The MAX6381–MAX6390 family delivers low-power, factory-trimmed supervisory circuits optimized for reliable reset generation in space- and power-constrained embedded systems with single or dual supply rails.
FAQ
What is the exact reset threshold voltage of the MAX6384LT29D1+T?
The MAX6384LT29D1+T has a factory-set nominal reset threshold of 2.93V, with guaranteed tolerance of ±2.5% over the full operating temperature range of –40°C to +125°C. This value is confirmed in the Reset Thresholds table of the datasheet, where suffix "29" corresponds to VTH(min) = 2.85V, VTH(nom) = 2.93V, and VTH(max) = 3.00V at +25°C.
Does the MAX6384LT29D1+T support manual reset, and how is it implemented?
Yes, the MAX6384LT29D1+T includes a debounced manual reset input (MR) on pin 3. It is active-low, internally pulled up to VCC with a 63kΩ resistor, and accepts logic-level inputs or momentary switch closures to GND. The device asserts reset for the full 1ms timeout period after MR is released, eliminating need for external debounce circuitry.
What package type and dimensions does the MAX6384LT29D1+T use?
The MAX6384LT29D1+T uses a 4-pin SC70 package (package code X4+1, outline number 21-0098), measuring 2.0mm × 2.1mm × 0.95mm. It is RoHS-compliant ("+T" suffix), rated for –40°C to +125°C operation, and compatible with standard reflow soldering profiles up to +260°C.
Can the MAX6384LT29D1+T monitor a second voltage rail?
No, the MAX6384LT29D1+T does not support auxiliary voltage monitoring. It monitors only the VCC rail. Devices with RESET IN capability (e.g., MAX6387–MAX6389) provide a dedicated input for secondary voltage supervision via external resistor dividers - a feature absent in the MAX6384LT29D1+T.
What is the minimum supply voltage at which the MAX6384LT29D1+T guarantees correct RESET output logic state?
The MAX6384LT29D1+T guarantees valid RESET output logic levels down to VCC = 1.0V. Below this voltage, the output state is not assured. This specification ensures reliable reset assertion during deep brownout conditions common in battery-depleted portable systems.
MAX6384LT29D1+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- 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:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (1.5x1)
MAX6384LT29D1+T FAQ
1.How can I place an order for MAX6384LT29D1+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384LT29D1+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 MAX6384LT29D1+T reliable?
The price and inventory of MAX6384LT29D1+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384LT29D1+T is usually 5 days.
3.What payment methods are accepted for MAX6384LT29D1+T?
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4.How is shipping managed for MAX6384LT29D1+T?
MAX6384LT29D1+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384LT29D1+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 MAX6384LT29D1+T?
For technical support, including MAX6384LT29D1+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384LT29D1+T requirements.
6.How does Aetrix verify that MAX6384LT29D1+T is sourced from the original manufacturer or authorized distributors?
All MAX6384LT29D1+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 MAX6384LT29D1+T meets industry standards.
7.What is the process for return or replacement of MAX6384LT29D1+T?
All MAX6384LT29D1+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384LT29D1+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 MAX6384LT29D1+T part is unused and in its original packaging.
Return procedure for MAX6384LT29D1+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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