My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6388XS31D6-T
- Part No.:
- MAX6388XS31D6-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6388XS31D6-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,845
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6388XS31D6-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 3.08V VCC reset threshold (±2.5% over -40°C to +125°C), 560ms minimum VCC reset timeout, and auxiliary RESET IN input for dual-voltage monitoring. It operates from 1.0V to 5.5V supply and consumes only 3μA at 1.8V, targeting power-critical embedded systems requiring reliable brownout detection.
For engineers reviewing the MAX6388XS31D6-T datasheet, MAX6388XS31D6-T pinout, MAX6388XS31D6-T application, or MAX6388XS31D6-T equivalent, key selection considerations include its 4-pin SC70 package, 3.08V threshold accuracy, 560ms reset hold time, dual-supply monitoring capability via RESET IN, and guaranteed reset validity down to VCC = 1V.
Technical Context
The MAX6388XS31D6-T integrates a precision voltage comparator for VCC monitoring and a separate +1.27V reference-based comparator for the RESET IN auxiliary input, enabling independent reset assertion when either supply falls below its threshold. Its internal timer ensures deterministic 560ms reset assertion after VCC recovery or RESET IN release.
It features an active-high push-pull RESET output capable of sourcing 800µA at VCC ≥ 4.5V (VOH ≥ 0.8×VCC) and sinking 3.2mA (VOL ≤ 0.4V), with guaranteed logic-state validity down to VCC = 1V. The RESET IN input exhibits ±1nA leakage and supports resistor-divider configuration for user-defined thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 3.08V nominal, ±2.5% over -40°C to +125°C - ensures stable reset activation across automotive/industrial temperature ranges |
| Reset Timeout Period | 560ms minimum - provides sufficient hold time for μP initialization in systems with slow power-rail rise times |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in portable equipment without compromising supervision reliability |
| Operating Voltage Range | 1.0V to 5.5V - supports operation during deep brownout and compatibility with core/I/O rail voltages |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup, simplifies interface to μP reset inputs requiring high-assertion |
| Auxiliary Input | RESET IN with 1.27V internal reference - allows monitoring of second supply (e.g., I/O voltage) using external resistor divider |
| Reset Assertion Validity | Guaranteed down to VCC = 1V - ensures predictable reset behavior during uncontrolled power collapse |
Pinout & Package
MAX6388XS31D6-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.3mm × 1.6mm × 0.95mm, optimized for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and primary voltage monitor source; accepts 1.0V–5.5V; powers internal comparators and timer |
| 2 | RESET | Active-high push-pull reset output; drives high during reset assertion; sinks 3.2mA / sources 800µA; valid down to VCC = 1V |
| 3 | RESET IN | Auxiliary voltage monitor input; compared to internal 1.27V reference; supports resistor-divider for custom threshold setting |
| 4 | GND | Analog and digital ground reference; must be connected to system ground plane for accurate threshold sensing |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply monitoring capability | Simultaneous VCC and RESET IN monitoring enables robust power sequencing in dual-rail systems (e.g., core + I/O) |
| Factory-trimmed reset threshold | 3.08V ±2.5% over full temperature range eliminates need for external calibration or trimming components |
| Negative-going transient immunity | Withstands short VCC glitches without false reset assertion, validated per typical operating characteristics graph |
| Ultra-low quiescent current | 3μA at 1.8V allows integration into always-on subsystems without impacting battery runtime |
| Guaranteed reset state at low VCC | RESET output remains logically valid down to VCC = 1V, preventing undefined states during brownout recovery |
Applications
| Power Monitoring in Portable Devices | Dual-Rail Microcontroller Systems |
|---|---|
Use Scenario: Battery-powered handheld instrument with 3.3V main supply and 1.8V sensor interface, requiring fail-safe restart on voltage sag. IC Role / Device Role / Timing Role: Supervises both rails via VCC and RESET IN inputs; asserts active-high RESET for 560ms upon any rail drop below threshold. Use Value: Prevents corrupted firmware execution during partial brownout, leveraging guaranteed reset validity down to 1V VCC. | Use Scenario: Industrial PLC controller using separate 5V logic and 3.3V communication rails, needing coordinated reset on either rail failure. IC Role / Device Role / Timing Role: Monitors 5V VCC and 3.3V I/O rail via RESET IN; triggers single RESET pulse if either falls below respective threshold. Use Value: Eliminates need for two discrete supervisors, reducing BOM count and PCB area while maintaining independent threshold accuracy. |
| Automotive Body Control Modules | Low-Power IoT Edge Nodes |
Use Scenario: AEC-Q100 qualified body control module powered from 12V regulator (3.3V output), subject to load-dump transients. IC Role / Device Role / Timing Role: Provides reset supervision with 3.08V threshold aligned to MCU VDD tolerance; immune to sub-10µs negative VCC spikes. Use Value: Ensures deterministic reset during vehicle electrical noise events without spurious reboots. | Use Scenario: Wireless sensor node powered by coin cell, sleeping >99% of time, requiring nanowatt supervision during wake cycles. IC Role / Device Role / Timing Role: Delivers 3μA supply current at 1.8V while guaranteeing 560ms reset hold time for secure bootloader entry. Use Value: Extends battery life beyond 5 years in periodic transmission applications without sacrificing supervision integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6388LT31D6-T | Same electrical specs but in 6-pin µDFN package; no SC70 footprint compatibility | Preferred for thermal performance or higher-current PCB layouts where 4-pin SC70 density is insufficient | Select when board layout requires lower θJA (477°C/W vs. 322.6°C/W) or additional N.C. pins for routing flexibility |
| TPS3808G30DBVR | 3.0V threshold (±0.5%), 500ms timeout, 1.4μA ICC at 3.3V; open-drain output only | Lacks RESET IN input and active-high push-pull drive; requires external pullup resistor | Choose for ultra-low-power designs where open-drain interface is acceptable and auxiliary monitoring is unnecessary |
Compared with MAX6388XS31D6-T, the LT31D6 variant offers identical supervision functionality in a larger µDFN package for improved thermal handling, while the TPS3808G30DBVR trades dual-monitoring capability and push-pull drive for lower quiescent current and tighter threshold tolerance-making it suitable only when RESET IN and active-high output are not required.
Availability
MAX6388XS31D6-T is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, portable medical devices, and battery-powered IoT nodes requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6388XS31D6-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 communications applications.
The MAX6381–MAX6390 family delivers low-power, high-accuracy μP reset supervision with flexible threshold, timeout, and monitoring options for space- and power-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX6388XS31D6-T?
The MAX6388XS31D6-T has a factory-set VCC reset threshold of 3.08V nominal, with guaranteed accuracy 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, where suffix "31" corresponds to min/typ/max values of 3.00V/3.08V/3.15V at +25°C and maintains ±2.5% tolerance across temperature.
Does the MAX6388XS31D6-T support monitoring of a second voltage rail?
Yes, the MAX6388XS31D6-T supports dual-voltage monitoring via its dedicated RESET IN pin, which compares an external voltage against an internal +1.27V reference. When the voltage at RESET IN falls below this reference, the device asserts RESET independently of VCC-enabling use cases like monitoring I/O supply in systems with separate core and interface rails.
What is the function of Pin 2 on the MAX6388XS31D6-T?
Pin 2 of the MAX6388XS31D6-T is the RESET output terminal, configured as an active-high push-pull driver. It transitions high during reset assertion and remains high for the full 560ms timeout period after VCC or RESET IN recovers above their respective thresholds. Its push-pull structure eliminates reliance on external pull resistors.
Can the MAX6388XS31D6-T operate reliably at very low supply voltages?
Yes, the MAX6388XS31D6-T guarantees correct RESET output logic state down to VCC = 1.0V, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. This ensures deterministic reset behavior during deep brownout conditions where many supervisors fail to maintain valid output levels.
What package type is used for the MAX6388XS31D6-T?
The MAX6388XS31D6-T is supplied in a lead(Pb)-free, RoHS-compliant 4-pin SC70 package (outline number 21-0098), with dimensions of 1.3mm × 1.6mm × 0.95mm. This compact surface-mount package is optimized for high-density PCB layouts in portable and space-constrained applications.
MAX6388XS31D6-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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 3.08V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 560ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6388XS31D6-T FAQ
1.How can I place an order for MAX6388XS31D6-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6388XS31D6-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 MAX6388XS31D6-T reliable?
The price and inventory of MAX6388XS31D6-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6388XS31D6-T is usually 5 days.
3.What payment methods are accepted for MAX6388XS31D6-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6388XS31D6-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6388XS31D6-T?
MAX6388XS31D6-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6388XS31D6-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 MAX6388XS31D6-T?
For technical support, including MAX6388XS31D6-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6388XS31D6-T requirements.
6.How does Aetrix verify that MAX6388XS31D6-T is sourced from the original manufacturer or authorized distributors?
All MAX6388XS31D6-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 MAX6388XS31D6-T meets industry standards.
7.What is the process for return or replacement of MAX6388XS31D6-T?
All MAX6388XS31D6-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6388XS31D6-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 MAX6388XS31D6-T part is unused and in its original packaging.
Return procedure for MAX6388XS31D6-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6388XS31D6-T 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…
