My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6388XS24D5-T
- Part No.:
- MAX6388XS24D5-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6388XS24D5-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,349
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6388XS24D5-T from Maxim Integrated is a low-power, dual-voltage microprocessor supervisory circuit with active-high push-pull reset output, 2.4V factory-set VCC reset threshold (±2.5% over -40°C to +125°C), 280ms minimum VCC reset timeout, and auxiliary RESET IN input for monitoring a second voltage source. It operates from 1.0V to 5.5V supply and consumes only 3μA at 1.8V, enabling reliable power-up/brownout detection in space-constrained battery-powered systems.
For engineers reviewing the MAX6388XS24D5-T datasheet, MAX6388XS24D5-T pinout, MAX6388XS24D5-T application, or MAX6388XS24D5-T equivalent, key selection criteria include its 4-pin SC70 package, guaranteed reset validity down to VCC = 1V, ±2.5% threshold accuracy across automotive temperature range, and dual-monitoring capability via internal 1.27V reference and external resistor-divider on RESET IN.
Technical Context
The MAX6388XS24D5-T integrates two independent voltage comparators: one monitors VCC against a precision 2.4V threshold, while the other compares the external RESET IN pin to a stable 1.27V internal reference. Reset assertion occurs if either monitored voltage falls below its respective threshold, and the active-high push-pull output remains asserted for ≥280ms after recovery.
Its manual reset input (MR) is absent - unlike MAX6384–MAX6386/MAX6390 - confirming it is a dedicated dual-supply monitor without user-initiated reset capability. The device guarantees correct logic state of RESET output down to VCC = 1V and exhibits immunity to negative-going VCC transients up to 35µs at 100mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 2.40V (nominal), ±2.5% over -40°C to +125°C - ensures accurate brownout detection across automotive temperature range |
| RESET Timeout Period | 280ms (minimum) - provides sufficient hold time for μP initialization before release |
| Supply Current | 3μA at VCC = 1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Operating Voltage Range | 1.0V to 5.5V - supports valid reset assertion during deep brownout down to near-zero supply |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup resistor and drives high-impedance loads directly |
| RESET IN Threshold | 1.27V (±2.5% over temperature) - enables precise secondary supply monitoring using external resistor divider |
| Reset Propagation Delay | 4.5µs (RESET IN to RESET) - ensures fast response to auxiliary rail faults |
Pinout & Package
MAX6388XS24D5-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm, optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and primary voltage monitor - powers internal circuitry and triggers reset when falling below 2.4V |
| 2 | RESET | Active-high push-pull output - asserts high during fault conditions and holds for ≥280ms post-recovery |
| 3 | GND | Analog/digital ground reference - must be connected to system ground plane for stable comparator operation |
| 4 | RESET IN | Auxiliary voltage monitor input - compared to internal 1.27V reference; enables dual-rail supervision without additional ICs |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises VCC (2.4V threshold) and external rail via RESET IN (1.27V reference), reducing BOM count in multi-rail systems |
| Guaranteed reset validity down to VCC = 1V | Ensures deterministic μP reset state even during severe brownout - no external pulldown required for push-pull output |
| ±2.5% reset threshold accuracy over -40°C to +125°C | Meets AEC-Q100 Grade 1 requirements for automotive under-hood applications without calibration |
| Negative-going VCC transient immunity | Withstands ≤35µs glitches at 100mV overdrive - suppresses false resets caused by switching noise or ESD coupling |
| Low 3μA supply current at 1.8V | Extends battery life in always-on monitoring nodes - e.g., >10 years on CR2032 at 1Hz wake-up rate |
Applications
| Industrial PLC I/O Module | Automotive ADAS Camera Power Sequencing |
|---|---|
|
Use Scenario: Supervises both 3.3V I/O rail and 1.8V FPGA core rail in programmable logic controller modules exposed to wide ambient temperatures. IC Role / Device Role / Timing Role: Dual-threshold supervisor ensuring synchronized reset release only after both rails stabilize above their thresholds. Use Value: Prevents metastability in FPGA configuration logic by enforcing strict sequencing - eliminates field failures due to partial power-up. |
Use Scenario: Monitors 5V camera sensor supply and 1.2V image processor core voltage in automotive surround-view systems operating from -40°C to +105°C. IC Role / Device Role / Timing Role: Resets image processor only when both supplies exceed safe operating levels, with 280ms timeout matching boot ROM initialization window. Use Value: Eliminates black-frame artifacts during cold-start by guaranteeing clean power-up sequence before ISP firmware execution. |
| Medical Wearable Sensor Hub | Smart Energy Meter MCU Supervision |
|
Use Scenario: Ensures reliable startup of ultra-low-power ARM Cortex-M0+ MCU and analog front-end in battery-operated ECG patch devices. IC Role / Device Role / Timing Role: Supervises 3.0V BLE radio supply and 1.8V sensor interface rail, asserting reset until both are within tolerance. Use Value: Reduces false wake-ups and data corruption during battery voltage sag - extends usable runtime per charge cycle. |
Use Scenario: Provides fail-safe reset for metrology SoC in ANSI C12.20-certified electricity meters powered by AC/DC converter and backup supercapacitor. IC Role / Device Role / Timing Role: Monitors main 3.3V rail and backup 2.5V rail, triggering reset on either failure with 280ms hold time compatible with meter firmware watchdog window. Use Value: Guarantees meter continues accurate kWh accumulation during brief AC dropout - meets IEC 62053-21 Class 0.2 accuracy retention requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6387XS24D5-T | Same 2.4V threshold, 280ms timeout, and 4-pin SC70 package, but features open-drain active-low RESET output requiring external pullup | Suitable where system-level reset bus is shared with multiple devices using wired-OR logic | Select MAX6387XS24D5-T only if active-low/open-drain signaling is required; otherwise MAX6388XS24D5-T simplifies layout with push-pull drive |
| TLV803EB24DBZR | 2.4V threshold, 280ms timeout, SOT-23-3 package, no RESET IN input, ±2% threshold accuracy, 0.5μA typical ICC at 1.8V | Limited to single-rail supervision; lower quiescent current but lacks dual-monitoring capability | Choose TLV803EB24DBZR for cost-sensitive single-supply designs where auxiliary rail monitoring is unnecessary |
Compared with MAX6387XS24D5-T, MAX6388XS24D5-T eliminates external pullup components and simplifies timing analysis with active-high assertion; versus TLV803EB24DBZR, it adds critical dual-rail supervision at modest current penalty - making it optimal for safety-critical multi-voltage systems.
Availability
MAX6388XS24D5-T is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive ADAS camera power sequencing, medical wearable sensor hubs, smart energy meter MCU supervision, and dual-voltage embedded controllers requiring stable component supply across extended temperature ranges.
Supply support for MAX6388XS24D5-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 and mixed-signal ICs for demanding industrial, automotive, and computing applications, emphasizing reliability, low power, and small form factor.
MAX6388XS24D5-T belongs to the MAX6381–MAX6390 family of low-power μP supervisory circuits engineered for dual-voltage monitoring in space-constrained, battery-operated, and automotive-grade systems where deterministic reset behavior is mission-critical.
FAQ
What is the exact reset threshold voltage and accuracy of MAX6388XS24D5-T?
The MAX6388XS24D5-T has a factory-set VCC reset threshold of 2.40V nominal, with ±2.5% tolerance over the full operating temperature range of -40°C to +125°C. This specification is guaranteed by design and applies to both VCC monitoring and the internal 1.27V reference used for RESET IN comparison. The threshold is laser-trimmed during production to meet this accuracy without requiring external calibration.
Does MAX6388XS24D5-T support manual reset functionality?
No, MAX6388XS24D5-T does not include a manual reset (MR) input. Unlike MAX6384–MAX6386 or MAX6390 variants, this part is specifically configured for dual-voltage supervision only - monitoring VCC and RESET IN - with no provision for user-initiated reset. Its pinout omits MR, and the datasheet explicitly assigns Pin 3 to GND and Pin 4 to RESET IN in the 4-pin SC70 configuration.
What is the function and electrical specification of the RESET IN pin on MAX6388XS24D5-T?
The RESET IN pin on MAX6388XS24D5-T connects to an internal comparator referenced to a precise 1.27V bandgap voltage. When the voltage at RESET IN falls below 1.27V (±2.5% over temperature), the device asserts the active-high RESET output. Input leakage is ±1nA max, enabling use of high-value resistor dividers (e.g., 1MΩ/470kΩ) to set custom thresholds - for example, 3.3V rail supervision at 3.3V × (470kΩ / (1MΩ + 470kΩ)) ≈ 1.27V.
Can MAX6388XS24D5-T operate reliably at VCC = 1.0V?
Yes, MAX6388XS24D5-T guarantees correct RESET output logic state down to VCC = 1.0V, as confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables. At this voltage, the active-high push-pull output maintains valid high/low states without external biasing - unlike open-drain variants that require pullups. This capability ensures deterministic reset behavior during deep brownout conditions common in battery-depleted portable systems.
What package type and dimensions does MAX6388XS24D5-T use?
MAX6388XS24D5-T is supplied in a lead-free, RoHS-compliant 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm. This compact footprint occupies ~40% less board area than comparable SOT-23 solutions and supports reflow soldering at +260°C peak temperature, making it ideal for high-density portable and automotive PCBs.
MAX6388XS24D5-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:
- 280ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6388XS24D5-T FAQ
1.How can I place an order for MAX6388XS24D5-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6388XS24D5-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 MAX6388XS24D5-T reliable?
The price and inventory of MAX6388XS24D5-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6388XS24D5-T is usually 5 days.
3.What payment methods are accepted for MAX6388XS24D5-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6388XS24D5-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6388XS24D5-T?
MAX6388XS24D5-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6388XS24D5-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 MAX6388XS24D5-T?
For technical support, including MAX6388XS24D5-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6388XS24D5-T requirements.
6.How does Aetrix verify that MAX6388XS24D5-T is sourced from the original manufacturer or authorized distributors?
All MAX6388XS24D5-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 MAX6388XS24D5-T meets industry standards.
7.What is the process for return or replacement of MAX6388XS24D5-T?
All MAX6388XS24D5-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6388XS24D5-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 MAX6388XS24D5-T part is unused and in its original packaging.
Return procedure for MAX6388XS24D5-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6388XS24D5-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…
