My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6384XS26D3+
- Part No.:
- MAX6384XS26D3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS26D3+.pdf
- Description:
- IC MPU/RESET CIRC 2.63V SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,810
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6384XS26D3+ from Maxim Integrated is a low-power microprocessor supervisory circuit with factory-set 2.63V reset threshold, 140ms 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 in battery-powered controllers and portable instrumentation, consuming only 3μA at +1.8V and guaranteeing valid reset state down to VCC = 1V.
For engineers reviewing the MAX6384XS26D3+ datasheet, MAX6384XS26D3+ pinout, MAX6384XS26D3+ application, or MAX6384XS26D3+ equivalent, key selection criteria include ±2.5% reset threshold accuracy over -40°C to +125°C, MR internal pullup resistance of 63kΩ, negative-going VCC transient immunity, and compatibility with dual-voltage systems requiring reliable power-on reset sequencing.
Technical Context
The MAX6384XS26D3+ implements a precision bandgap-based voltage comparator for VCC monitoring and an internal monostable timer for reset assertion timing. Its reset logic asserts active-low RESET when VCC falls below 2.63V (±2.5% over temperature) and holds it for ≥140ms after VCC recovers above threshold.
It integrates a debounced manual reset input (MR) with 63kΩ internal pullup, supporting TTL/CMOS-compatible triggering and eliminating external debounce components. The push-pull output drives high-impedance loads directly without external pullup, delivering VOL ≤ 0.3V at ISINK = 1.2mA (VCC ≥ 2.5V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V nominal, ±2.5% over -40°C to +125°C - ensures accurate brownout detection across automotive and industrial temperature ranges |
| VCC Reset Timeout | 140ms minimum - provides sufficient hold time for microcontroller initialization and memory stabilization |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors and wearables |
| Reset 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-to-GND interface without external components |
| Operating Voltage Range | +1.0V to +5.5V - guarantees functional reset assertion even during deep brownout conditions |
| Reset Output Validity | Valid down to VCC = 1V - ensures deterministic reset behavior during power ramp-down |
Pinout & Package
MAX6384XS26D3+ is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098), measuring 2.0mm × 2.1mm × 0.95mm, with thermal resistance θJA = 322.6°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail - must be decoupled with 0.1μF capacitor near pin for transient immunity |
| 2 | RESET | Active-low push-pull reset output - drives low during fault; high-impedance state not supported; no external pullup required |
| 3 | GND | Analog and digital ground reference - requires low-inductance connection to system ground plane |
| 4 | MR | Active-low manual reset input - internally pulled up to VCC; driven low to force reset; immune to <100ns glitches |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.63V with ±2.5% tolerance over full temperature range - eliminates external resistor network and calibration effort |
| Debounced manual reset input | MR pin with integrated 63kΩ pullup and 1μs minimum pulse width requirement - removes need for RC filters or logic gates |
| Negative-going VCC transient immunity | Rejects transients ≤35μs at 100mV overdrive - prevents spurious resets during switching noise or ESD events |
| Low-voltage operation guarantee | Valid RESET output down to VCC = 1V - ensures deterministic reset deassertion during power collapse |
| Pin compatibility | Drop-in replacement for MAX809/MAX6326/MAX6346 families - enables legacy design upgrades without PCB revision |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with intermittent BLE transmission. IC Role / Device Role / Timing Role: Supervises VCC during cold-start and battery depletion; asserts RESET until regulated 3.3V rail stabilizes post-LDO turn-on. Use Value: 3μA quiescent current extends battery life beyond 3 years; 140ms timeout ensures reliable MCU boot before sensor initialization. |
Use Scenario: Environmental data logger using MSP430 MCU, sampling temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Monitors main 3.0V supply and triggers hardware reset if brownout occurs during flash write operations. Use Value: ±2.5% threshold accuracy prevents false resets at marginal battery voltages; MR pin enables field firmware recovery via button press. |
| Industrial PLC I/O Modules | Dual-Voltage Microcontroller Systems |
Use Scenario: DIN-rail mounted I/O module with isolated 5V and 3.3V rails powering FPGA and analog front-end. IC Role / Device Role / Timing Role: Primary supervisor for 3.3V logic rail; coordinated reset sequencing with secondary supervisor on 5V rail. Use Value: Push-pull output drives FPGA PROG_B pin directly; 2.63V threshold matches 3.3V LDO dropout margin. |
Use Scenario: ARM Cortex-M4 system with separate 1.2V core and 3.3V I/O supplies, requiring synchronized reset release. IC Role / Device Role / Timing Role: Monitors 3.3V I/O rail; RESET output held active until both rails exceed thresholds and timeout expires. Use Value: Valid RESET down to VCC = 1V ensures clean release timing even during asymmetric power ramp-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR26D3+ | Same 2.63V threshold and 140ms timeout, but no MR input - push-pull active-low output only | Lacks manual reset capability; suitable only for systems with software-only reset control | Select when MR functionality is unnecessary and cost minimization is critical |
| TPS3808G33DBVR | 2.93V threshold (not 2.63V); 200ms timeout (not 140ms); 1.8–6.0V operating range; 2.5μA ICC at 3.3V | Higher threshold limits use in 2.8V or 3.0V systems; longer timeout may delay boot in latency-sensitive designs | Choose only if 2.93V threshold aligns with system LDO specification and 200ms delay is acceptable |
Compared with MAX6326XR26D3+, MAX6384XS26D3+ adds essential MR functionality for field serviceability; compared with TPS3808G33DBVR, it delivers tighter threshold matching (2.63V vs 2.93V) and shorter, more deterministic reset hold time (140ms vs 200ms) for 3.0V–3.3V rail supervision.
Availability
MAX6384XS26D3+ is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, industrial PLC I/O modules, and dual-voltage microcontroller systems requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6384XS26D3+ 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 and mixed-signal ICs for demanding industrial, automotive, and computing applications, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family targets ultra-low-power microprocessor supervision in space-constrained, battery-operated, and thermally harsh environments - delivering guaranteed reset behavior from 1V to 5.5V with minimal quiescent current.
FAQ
What is the exact reset threshold voltage and tolerance for MAX6384XS26D3+?
The MAX6384XS26D3+ has a factory-set nominal reset threshold of 2.63V, with guaranteed tolerance of ±2.5% over the full operating temperature range of -40°C to +125°C. This means the actual threshold falls between 2.56V and 2.69V at any temperature within that range, ensuring robust brownout detection without external calibration.
Does MAX6384XS26D3+ support manual reset, and how is it implemented?
Yes, MAX6384XS26D3+ includes a dedicated MR (manual reset) input with an internal 63kΩ pullup resistor to VCC. Driving MR low forces an immediate reset; the device holds RESET active for the full 140ms timeout after MR is released. No external components are needed - a simple momentary switch from MR to GND suffices.
What package type and footprint does MAX6384XS26D3+ use?
MAX6384XS26D3+ is supplied in a 4-pin SC70 package (outline 21-0098), with land pattern number 90-0187. Its compact 2.0mm × 2.1mm body and 0.65mm pin pitch enable high-density PCB layouts, and its RoHS-compliant lead-free construction meets modern environmental standards.
Can MAX6384XS26D3+ operate reliably at very low supply voltages?
Yes, MAX6384XS26D3+ guarantees correct reset output logic state down to VCC = 1.0V. Below this, the internal circuitry may not function, but above 1.0V - including during power-down sequences - RESET remains asserted or deasserted as specified, enabling safe microcontroller shutdown in deep brownout conditions.
How does MAX6384XS26D3+ handle short voltage transients on the VCC line?
MAX6384XS26D3+ provides inherent immunity to negative-going VCC transients: it will not assert reset for glitches ≤35μs wide when the overdrive (VTH – VCC) is 100mV. Adding a 0.1μF ceramic capacitor close to the VCC pin further enhances immunity against fast switching noise and ESD-induced dips.
MAX6384XS26D3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- 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
MAX6384XS26D3+ FAQ
1.How can I place an order for MAX6384XS26D3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS26D3+ 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 MAX6384XS26D3+ reliable?
The price and inventory of MAX6384XS26D3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS26D3+ is usually 5 days.
3.What payment methods are accepted for MAX6384XS26D3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS26D3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS26D3+?
MAX6384XS26D3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS26D3+ 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 MAX6384XS26D3+?
For technical support, including MAX6384XS26D3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS26D3+ requirements.
6.How does Aetrix verify that MAX6384XS26D3+ is sourced from the original manufacturer or authorized distributors?
All MAX6384XS26D3+ 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 MAX6384XS26D3+ meets industry standards.
7.What is the process for return or replacement of MAX6384XS26D3+?
All MAX6384XS26D3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS26D3+, 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 MAX6384XS26D3+ part is unused and in its original packaging.
Return procedure for MAX6384XS26D3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6384XS26D3+ Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
