My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6388XS24D1-T
- Part No.:
- MAX6388XS24D1-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6388XS24D1-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,215
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6388XS24D1-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 2.40V ±2.5% VCC reset threshold, and 1ms minimum reset timeout period. It monitors single supply voltage in battery-powered or space-constrained embedded systems and guarantees valid reset state down to VCC = 1V. Designed for dual-voltage systems requiring auxiliary voltage monitoring, it features RESET IN input referenced to +1.27V internal comparator.
For engineers reviewing the MAX6388XS24D1-T datasheet, MAX6388XS24D1-T pinout, MAX6388XS24D1-T application, or MAX6388XS24D1-T equivalent, key selection criteria include its 4-pin SC70 package, 2.40V threshold accuracy over –40°C to +125°C, 3μA supply current at 1.8V, auxiliary voltage monitoring capability, and guaranteed reset assertion during brownout conditions below 1V VCC.
Technical Context
The MAX6388XS24D1-T implements a precision bandgap-based reset comparator with ±2.5% threshold accuracy across –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 1ms minimum reset timeout after VCC rises above 2.40V or after RESET IN falls below +1.27V.
It integrates an auxiliary reset comparator (RESET IN) referenced to a stable +1.27V internal reference, enabling user-defined secondary voltage monitoring via external resistor divider. The active-high push-pull RESET output drives high during fault conditions and remains asserted for the full timeout period, ensuring reliable μP initialization during power-up, brownout, or negative-going VCC transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.40V ±2.5% over –40°C to +125°C - ensures accurate brownout detection across automotive and industrial temperature ranges |
| Reset Timeout Period | 1ms minimum - provides sufficient hold time for fast-starting microcontrollers without delaying system boot |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors and portable devices |
| Operating Voltage Range | 1.0V to 5.5V - supports valid reset assertion even during deep brownout down to 1V VCC |
| Auxiliary Input Reference | +1.27V internal reference for RESET IN - allows precise secondary voltage monitoring using external resistive divider |
| Output Type | Active-high push-pull - eliminates need for external pullup resistor and simplifies interface to standard CMOS inputs |
| Package | 4-pin SC70 (X4+1 outline) - occupies <0.6 mm² PCB area, suitable for ultra-compact wearable and medical devices |
Pinout & Package
MAX6388XS24D1-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.3mm × 1.1mm × 0.6mm with 0.65mm lead pitch. This compact footprint supports high-density PCB layouts in portable and space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and primary voltage monitor - powers device and triggers reset when falling below 2.40V |
| 2 | RESET | Active-high push-pull output - asserts high during fault; requires no external pullup and sinks/source up to 80µA at 1.0V |
| 3 | GND | Ground reference - must be connected directly to system ground plane for stable reset timing and noise immunity |
| 4 | RESET IN | Auxiliary voltage monitor input - compared to +1.27V internal reference; enables dual-rail monitoring via external resistor divider |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.40V with ±2.5% tolerance over full temperature range - eliminates need for external calibration or trimming components |
| Dual-voltage supervision | Simultaneous monitoring of VCC and external rail via RESET IN - supports independent power-good signaling for core/I/O rails |
| Negative-going transient immunity | Immune to VCC glitches ≤35µs at 100mV overdrive - prevents spurious resets in electrically noisy environments |
| Ultra-low quiescent current | 3μA at 1.8V - extends battery life in always-on sensor nodes and backup power circuits |
| Valid reset down to 1V VCC | Guaranteed logic-level output integrity until VCC drops to 1.0V - ensures deterministic μP reset before complete power collapse |
Applications
| Portable Medical Sensors | Battery-Powered IoT Nodes |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with separate 1.8V sensor rail and 3.3V MCU rail. IC Role / Device Role / Timing Role: Supervises both rails: VCC monitors 3.3V MCU supply; RESET IN monitors 1.8V sensor supply via 100kΩ/68kΩ divider to set 1.80V threshold. Use Value: Ensures safe shutdown and restart when either rail sags below specification, preventing corrupted sensor data or firmware lockup. | Use Scenario: LoRaWAN end-node with ultra-low-power MCU and RF transceiver operating from Li-SOCl₂ battery. IC Role / Device Role / Timing Role: Provides 1ms reset pulse on power-up and brownout; RESET IN tracks backup supercap voltage to initiate graceful sleep before main supply depletion. Use Value: Enables >10-year battery life while guaranteeing reliable wake-from-reset behavior even as battery voltage decays to 2.0V. |
| Dual-Rail Industrial Controllers | Automotive Body Electronics |
Use Scenario: PLC I/O module with isolated 5V logic supply and 24V field-side power, requiring coordinated reset sequencing. IC Role / Device Role / Timing Role: VCC monitors 5V logic rail; RESET IN monitors 24V-to-5V converter output via resistor divider to detect upstream supply failure. Use Value: Prevents partial initialization where only one subsystem powers up, eliminating bus contention and latch-up risk. | Use Scenario: Automotive door module with 12V battery input, 5V CAN transceiver supply, and 3.3V MCU supply. IC Role / Device Role / Timing Role: Supervises 3.3V MCU rail (VCC) and monitors 5V transceiver rail (RESET IN); operates across –40°C to +125°C ambient. Use Value: Meets AEC-Q100 requirements for cold-cranking and load-dump resilience, ensuring CAN communication integrity during engine start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6387XS24D1-T | Same 2.40V threshold and 1ms timeout, but open-drain active-low RESET output requiring external pullup | Limited to systems with existing pullup infrastructure or level-shifting requirements | Select when interfacing to legacy 5V logic or shared reset buses needing wired-OR capability |
| TLV803EA24DBZR | 2.42V threshold, 1.5ms timeout, SOT-23-3 package, no auxiliary input | Single-rail only; lacks RESET IN for dual-supply monitoring | Choose for cost-sensitive, space-constrained single-rail applications where auxiliary monitoring is unnecessary |
Compared with MAX6387XS24D1-T, MAX6388XS24D1-T eliminates external pullup components and simplifies layout, while TLV803EA24DBZR reduces footprint and BOM count but sacrifices dual-voltage supervision capability critical for modern mixed-rail systems.
Availability
MAX6388XS24D1-T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered IoT nodes, dual-rail industrial controllers, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6388XS24D1-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 ultra-low-power, high-accuracy reset supervision for battery-operated and thermally harsh environments, with variants supporting single/dual rail monitoring, multiple output types, and AEC-Q100 qualification.
FAQ
What is the exact reset threshold voltage and tolerance for MAX6388XS24D1-T?
The MAX6388XS24D1-T has a factory-set reset threshold of 2.40V with ±2.5% accuracy over the full operating temperature range of –40°C to +125°C. This value is specified in the Reset Thresholds table of the datasheet, where suffix "24" corresponds to nominal 2.40V. The tolerance ensures reliable brownout detection without requiring external calibration, making MAX6388XS24D1-T suitable for automotive and industrial applications where supply voltage margins are tight.
Does MAX6388XS24D1-T support monitoring of a second voltage rail?
Yes, MAX6388XS24D1-T supports dual-voltage supervision via its dedicated RESET IN pin, which connects to an internal +1.27V reference comparator. By applying a resistor divider to RESET IN, users can configure a custom threshold for a secondary supply rail - for example, setting a 1.80V trip point using R1 = 100kΩ and R2 = 68kΩ. This feature enables coordinated reset signaling across core and I/O domains, a capability not present in single-rail alternatives like TLV803EA24DBZR.
What is the function and electrical behavior of the RESET output on MAX6388XS24D1-T?
The RESET output of MAX6388XS24D1-T is an active-high push-pull driver that asserts high when VCC falls below 2.40V or when RESET IN falls below its configured threshold. It remains high for the full 1ms minimum timeout period after recovery, then returns low. Unlike open-drain variants, this output requires no external pullup and can source/sink up to 80µA at 1.0V, ensuring robust interfacing with standard CMOS inputs across the entire 1.0V–5.5V operating range of MAX6388XS24D1-T.
What package type and dimensions does MAX6388XS24D1-T use?
MAX6388XS24D1-T is packaged in a 4-pin SC70 (X4+1 outline), measuring 1.3mm × 1.1mm × 0.6mm with 0.65mm lead pitch. This RoHS-compliant package is documented in Maxim's Package Information table (outline number 21-0098, land pattern 90-0187). Its ultra-small footprint supports high-density PCB layouts in wearables, hearing aids, and other miniaturized electronics where board space is at a premium - a key differentiator from larger 6-pin μDFN or SOT-23 alternatives.
How does MAX6388XS24D1-T handle power supply transients and brownout conditions?
MAX6388XS24D1-T provides robust immunity to negative-going VCC transients up to 35µs duration when the overdrive is 100mV, per the Typical Operating Characteristics graph "Maximum Transient Duration vs. Reset Comparator Overdrive." It guarantees valid reset assertion down to VCC = 1.0V, ensuring deterministic behavior during deep brownout. Combined with its 1ms timeout and ±2.5% threshold accuracy, MAX6388XS24D1-T prevents spurious resets and ensures clean μP initialization in electrically noisy or unstable power environments.
MAX6388XS24D1-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:
- 2.4V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6388XS24D1-T FAQ
1.How can I place an order for MAX6388XS24D1-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6388XS24D1-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 MAX6388XS24D1-T reliable?
The price and inventory of MAX6388XS24D1-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6388XS24D1-T is usually 5 days.
3.What payment methods are accepted for MAX6388XS24D1-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6388XS24D1-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6388XS24D1-T?
MAX6388XS24D1-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6388XS24D1-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 MAX6388XS24D1-T?
For technical support, including MAX6388XS24D1-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6388XS24D1-T requirements.
6.How does Aetrix verify that MAX6388XS24D1-T is sourced from the original manufacturer or authorized distributors?
All MAX6388XS24D1-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 MAX6388XS24D1-T meets industry standards.
7.What is the process for return or replacement of MAX6388XS24D1-T?
All MAX6388XS24D1-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6388XS24D1-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 MAX6388XS24D1-T part is unused and in its original packaging.
Return procedure for MAX6388XS24D1-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6388XS24D1-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…
