My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6386XS29D5
- Part No.:
- MAX6386XS29D5
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6386XS29D5.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,254
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6386XS29D5 from Maxim Integrated is a low-power, open-drain active-low microprocessor supervisory circuit with factory-set 2.93V reset threshold and 280ms minimum reset timeout. It monitors VCC supply voltage in embedded systems, asserts reset during brownout or power-up, and features debounced manual reset input (MR) with internal 63kΩ pullup. Designed for space-constrained industrial controllers and portable equipment.
For engineers reviewing the MAX6386XS29D5 datasheet, MAX6386XS29D5 pinout, MAX6386XS29D5 application, or MAX6386XS29D5 equivalent, key selection considerations include its 2.93V ±2.5% threshold accuracy over –40°C to +125°C, guaranteed valid reset output down to VCC = 1V, 3µA supply current at 1.8V, SC70-4 package footprint, and MR-driven reset initiation without external debounce.
Technical Context
The MAX6386XS29D5 implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across full temperature range and 60ppm/°C tempco. Its internal timer generates a fixed 280ms minimum reset timeout after VCC rises above 2.93V or after MR release.
It uses an open-drain RESET output requiring external pullup, supports manual reset via MR (active-low, internally pulled up to VCC), and guarantees correct logic state for VCC ≥ 1.0V - enabling reliable operation during deep brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±2.5% (min/max 2.85V/3.00V); ensures deterministic reset assertion during 2.9V–3.0V supply rails. |
| Reset Timeout | 280ms minimum; holds µP in reset long enough for stable clock and supply settling post-brownout. |
| Supply Current | 3µA at +1.8V; enables multi-year battery life in always-on monitoring applications. |
| Operating Voltage | 1.0V to 5.5V; supports valid reset signaling even during severe undervoltage (down to 1V). |
| MR Pullup Resistor | 63kΩ; allows direct connection of momentary switch to GND without external components. |
| Reset Output Type | Open-drain active-low; enables wired-OR configuration and level-shifting with external pullup. |
| Temp Range | –40°C to +125°C; qualified for under-hood automotive and industrial control environments. |
Pinout & Package
MAX6386XS29D5 is housed in a lead-free 4-pin SC70 package (X4-1), measuring 1.0mm × 1.0mm × 0.55mm, suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input; powers internal circuitry and serves as monitored voltage source. |
| 2 | RESET | Open-drain active-low reset output; requires external pullup resistor to define high state. |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC; initiates reset when driven low. |
| 4 | GND | Ground reference for all internal comparators, timers, and I/O. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed threshold | 2.93V with ±2.5% tolerance over –40°C to +125°C eliminates external resistor calibration. |
| Guaranteed reset validity | RESET output remains logically valid down to VCC = 1.0V - critical for fail-safe brownout recovery. |
| Debounced MR input | Internal 63kΩ pullup and 100ns glitch rejection enable direct switch connection without RC network. |
| Ultra-low ICC | 3µA at 1.8V reduces quiescent load on coin-cell or energy-harvesting supplies. |
| Negative transient immunity | Withstands VCC glitches ≤280µs at 100mV overdrive - suppresses false resets in noisy power domains. |
Applications
| Industrial PLC I/O Module | Medical Wearable Sensor Node |
|---|---|
Use Scenario: Monitors 3.3V system rail in DIN-rail mounted programmable logic controller I/O expansion module. IC Role / Device Role / Timing Role: Supervises VCC and triggers hardware reset if supply drops below 2.93V during field-induced transients. Use Value: Prevents firmware corruption during 24VDC supply ripple; 280ms timeout ensures FPGA configuration completes before release. | Use Scenario: Powers-on and maintains reset hold during lithium-polymer battery voltage ramp in ECG patch. IC Role / Device Role / Timing Role: Asserts active-low RESET until battery reaches stable 2.93V and sustains it for 280ms. Use Value: Eliminates boot failures caused by slow Li-Po charge ramp; 3µA ICC extends shelf life beyond 18 months. |
| Automotive Body Control Unit | Smart Energy Meter MCU Subsystem |
Use Scenario: Embedded in 12V-to-3.3V converted domain of door module controlling window lift and mirror positioning. IC Role / Device Role / Timing Role: Detects brownout during load-dump events and forces MCU reset via open-drain RESET line. Use Value: Open-drain output interfaces directly with 5V-tolerant MCU reset pin using 4.7kΩ pullup; survives –40°C to +125°C ambient. | Use Scenario: Secures metering SoC startup during AC/DC adapter power-up with variable rise time. IC Role / Device Role / Timing Role: Provides 280ms power-on reset with MR support for factory calibration mode entry. Use Value: MR pin enables field technician to force recalibration without soldering; 63kΩ internal pullup removes BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR29D5 | Same 2.93V threshold and 280ms timeout, but push-pull active-low output; no MR input. | Lacks manual reset capability; requires external MR circuit if user-initiated reset needed. | Select when board layout already includes pullup and MR functionality is unnecessary. |
| TPS3808G33DBVR | 2.93V threshold, 200ms timeout (not 280ms); 1.8V–6.5V VCC range; no internal MR pullup. | Requires external 100kΩ MR pullup; shorter timeout may not meet FPGA configuration timing. | Choose only if 200ms timeout satisfies system boot sequence and external MR biasing is acceptable. |
Compared with MAX6326XR29D5 and TPS3808G33DBVR, the MAX6386XS29D5 uniquely combines factory-set 2.93V/280ms timing, integrated MR pullup, and open-drain output - simplifying design for battery-powered or noise-prone systems requiring flexible reset control.
Availability
MAX6386XS29D5 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, medical wearable sensor nodes, automotive body control units, and smart energy meter MCU subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6386XS29D5 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.
The MAX6381–MAX6390 family delivers ultra-low-power, factory-trimmed supervisory circuits optimized for reliable µP reset in space- and power-constrained embedded systems operating from 1.0V to 5.5V.
FAQ
What is the exact reset threshold voltage of the MAX6386XS29D5?
The MAX6386XS29D5 has a factory-set nominal reset threshold of 2.93V, with guaranteed min/max values of 2.85V and 3.00V across –40°C to +125°C per the datasheet's Reset Thresholds table. This 2.93V point corresponds to suffix "29" in the part number and is trimmed at wafer test for ±2.5% accuracy over temperature.
Does the MAX6386XS29D5 require an external pullup resistor on the RESET pin?
Yes, the MAX6386XS29D5 features an open-drain active-low RESET output, so an external pullup resistor is mandatory to establish a defined high logic level. Typical values range from 4.7kΩ to 100kΩ depending on bus capacitance and rise-time requirements. The MAX6386XS29D5 itself does not provide internal pullup on RESET.
What is the function of the MR pin on the MAX6386XS29D5?
The MR (Manual Reset) pin on the MAX6386XS29D5 is an active-low input that forces a reset when pulled below 0.3×VCC. It includes an internal 63kΩ pullup resistor to VCC, allowing direct connection of a momentary switch to GND without external components. Reset remains asserted for the full 280ms timeout after MR is released.
Can the MAX6386XS29D5 operate reliably below 1.8V supply voltage?
Yes - the MAX6386XS29D5 is fully specified down to VCC = 1.0V. Its reset output remains logically valid (correct high/low state) at VCC ≥ 1.0V, and supply current drops to ~2.5µA at 1.5V. However, the 2.93V threshold means reset will assert continuously below that level, making it suitable for brownout detection but not for sub-2.9V supply supervision.
What package type and dimensions does the MAX6386XS29D5 use?
The MAX6386XS29D5 uses a lead-free 4-pin SC70 package (package code X4-1), with outline dimensions of 1.0mm × 1.0mm × 0.55mm and a 0.65mm pin pitch. This compact footprint supports high-density routing in portable and space-constrained designs, and is compatible with standard SC70 reflow profiles.
MAX6386XS29D5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 280ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6386XS29D5 FAQ
1.How can I place an order for MAX6386XS29D5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6386XS29D5 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 MAX6386XS29D5 reliable?
The price and inventory of MAX6386XS29D5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6386XS29D5 is usually 5 days.
3.What payment methods are accepted for MAX6386XS29D5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6386XS29D5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6386XS29D5?
MAX6386XS29D5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6386XS29D5 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 MAX6386XS29D5?
For technical support, including MAX6386XS29D5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6386XS29D5 requirements.
6.How does Aetrix verify that MAX6386XS29D5 is sourced from the original manufacturer or authorized distributors?
All MAX6386XS29D5 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 MAX6386XS29D5 meets industry standards.
7.What is the process for return or replacement of MAX6386XS29D5?
All MAX6386XS29D5 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6386XS29D5, 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 MAX6386XS29D5 part is unused and in its original packaging.
Return procedure for MAX6386XS29D5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6386XS29D5 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…
