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Analog Devices Inc./Maxim Integrated MAX6388XS16D7-T
- Part No.:
- MAX6388XS16D7-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6388XS16D7-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,071
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Product details
Overview
MAX6388XS16D7-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 1.58V VCC reset threshold (±2.5% over –40°C to +125°C), 1200ms minimum VCC reset timeout, and auxiliary RESET IN input for dual-voltage monitoring. It consumes only 3μA at +1.8V and guarantees valid reset state down to VCC = 1V, used in battery-powered instrumentation and dual-rail embedded systems.
For engineers reviewing the MAX6388XS16D7-T datasheet, MAX6388XS16D7-T pinout, MAX6388XS16D7-T application, or MAX6388XS16D7-T equivalent, key selection criteria include its 1.58V threshold accuracy, 1200ms timeout, 4-pin SC70 package, RESET IN compatibility with external resistor dividers, and AEC-Q100-qualified automotive variants.
Technical Context
The MAX6388XS16D7-T integrates a precision bandgap reference and comparator to monitor VCC against a fixed 1.58V threshold while simultaneously accepting an auxiliary voltage via RESET IN, compared to an internal 1.27V reference. Its reset assertion logic triggers on either VCC falling below 1.58V or RESET IN falling below 1.27V.
A dedicated 1200ms internal timer ensures reset remains asserted after VCC or RESET IN recovers, with guaranteed push-pull output drive capability down to VCC = 1V. The device features negative-going VCC transient immunity up to 150µs for 100mV overdrive and operates across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.58V ±2.5% over –40°C to +125°C - ensures reliable brownout detection across automotive and industrial temperature ranges |
| VCC Reset Timeout | 1200ms minimum - provides sufficient hold time for complex μP initialization sequences |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered portable instruments |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup resistor and supports direct connection to μP reset inputs |
| Auxiliary Input | RESET IN with 1.27V internal reference - allows user-defined second-voltage monitoring via external resistor divider |
| Operating Voltage | 1.0V to 5.5V - supports valid reset assertion even during deep brownout conditions |
| Package | 4-pin SC70 (X4+1 outline) - compact 1.6mm × 1.6mm footprint for space-constrained PCB layouts |
Pinout & Package
MAX6388XS16D7-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.6mm × 1.6mm × 0.9mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and primary voltage monitor - powers internal circuitry and sets reset trigger point at 1.58V |
| 2 | RESET | Active-high push-pull output - drives high during reset assertion; sinks/source current without external components |
| 3 | GND | Analog/digital ground reference - must be connected directly to system ground plane for stable threshold accuracy |
| 4 | RESET IN | Auxiliary voltage monitor input - accepts divided-down voltage; asserts reset if input falls below 1.27V |
Key Features
| Feature | Design Value |
|---|---|
| Dual-voltage supervision | Simultaneous monitoring of VCC (1.58V) and external rail via RESET IN (1.27V reference) - enables robust power sequencing in dual-core or I/O+core systems |
| Low-power operation | 3μA supply current at +1.8V - extends battery life in portable medical sensors and handheld test equipment |
| High-accuracy threshold | ±2.5% reset threshold tolerance over full temperature range - reduces need for system-level margining in automotive applications |
| Transient immunity | Immunity to negative-going VCC glitches up to 150µs at 100mV overdrive - prevents spurious resets in noisy industrial environments |
| Valid reset down to 1V | Guaranteed output logic state for VCC ≥ 1V - ensures deterministic behavior during deep undervoltage recovery |
Applications
| Industrial Power Monitoring | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Monitoring 1.8V core and 3.3V I/O rails in programmable logic controllers during cold-start and brownout events. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting reset when either rail drops below threshold, with 1200ms timeout ensuring FPGA configuration stability. Use Value: Prevents partial configuration and latch-up by holding reset until both supplies stabilize within spec. | Use Scenario: Power management in handheld multimeters powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Primary reset generator triggered by battery voltage decay below 1.58V, with RESET IN monitoring reference voltage stability. Use Value: Enables accurate low-battery warning and graceful shutdown before measurement corruption occurs. |
| Dual-Rail Microcontroller Systems | Automotive Body Control Modules |
Use Scenario: Coordinating startup of ARM Cortex-M7 core (1.1V) and CAN transceiver (3.3V) in automotive gateway ECUs. IC Role / Device Role / Timing Role: Supervises VCORE via RESET IN (using resistor divider) and VCC (3.3V), asserting unified reset signal with 1200ms hold time. Use Value: Eliminates race conditions between subsystems by enforcing synchronized release after full rail stabilization. | Use Scenario: Reset supervision in door module ECUs operating across –40°C to +125°C ambient. IC Role / Device Role / Timing Role: AEC-Q100 qualified supervisor monitoring 5V supply and 12V-derived bias rail, leveraging ±2.5% threshold accuracy over temperature. Use Value: Meets ASIL-B functional safety requirements for deterministic reset behavior under thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6388LT16D7-T | Same electrical specs but in 6-pin µDFN (L611+1) instead of 4-pin SC70 - larger footprint, better thermal dissipation | Suitable for high-reliability industrial boards where board space permits and θJA < 477°C/W is required | Select when thermal performance or mechanical robustness outweighs size constraints |
| TLV809K33DBZR | Single 3.3V reset threshold, no RESET IN input, 200ms timeout, SOT-23-3 package - lacks dual-monitoring and long timeout capability | Applicable only for simple single-rail systems without auxiliary voltage supervision needs | Choose only for cost-sensitive, space-constrained designs with fixed 3.3V rail and no secondary monitoring requirement |
Compared with MAX6388LT16D7-T, the MAX6388XS16D7-T offers identical supervision functionality in a smaller 4-pin SC70 package ideal for dense layouts, while TLV809K33DBZR provides lower-cost single-threshold reset but omits RESET IN, long timeout, and wide temperature accuracy - making it unsuitable for dual-rail or automotive-grade designs requiring the full feature set of MAX6388XS16D7-T.
Availability
MAX6388XS16D7-T is available at Aetrix Electronics and suitable for industrial power monitoring, battery-powered instrumentation, dual-rail microcontroller systems, and automotive body control modules requiring stable component supply across extended temperature ranges.
Supply support for MAX6388XS16D7-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 industrial, automotive, and communications applications.
The MAX6381–MAX6390 family delivers ultra-low-power, high-accuracy reset supervision for systems demanding reliable power-on reset, brownout protection, and dual-voltage monitoring in harsh environments.
FAQ
What is the exact reset threshold voltage of MAX6388XS16D7-T and how stable is it over temperature?
The MAX6388XS16D7-T has a factory-set VCC reset threshold of 1.58V, with guaranteed accuracy of ±2.5% over the full operating temperature range of –40°C to +125°C. This stability is achieved using a precision bandgap reference and trimmed comparator, eliminating need for external calibration. The MAX6388XS16D7-T maintains this tolerance without derating, making it suitable for automotive and industrial applications where thermal drift must be tightly controlled.
Does MAX6388XS16D7-T support monitoring of a second voltage rail, and how is it implemented?
Yes, the MAX6388XS16D7-T supports dual-voltage supervision via its dedicated RESET IN pin, which compares an external voltage to an internal 1.27V reference. To monitor a second rail, connect a resistor divider between that rail and GND, feeding the midpoint to RESET IN. The MAX6388XS16D7-T asserts reset if either VCC falls below 1.58V or the divided voltage at RESET IN drops below 1.27V - enabling coordinated reset for core/I/O or analog/digital supply pairs.
What is the function and timing behavior of the RESET output on MAX6388XS16D7-T?
The RESET output of MAX6388XS16D7-T is an active-high push-pull driver. It goes high when VCC falls below 1.58V or RESET IN falls below 1.27V, and remains high for a guaranteed minimum of 1200ms after both monitored voltages recover above their thresholds. The MAX6388XS16D7-T ensures valid logic levels down to VCC = 1V, and requires no external pullup - simplifying interface to microcontrollers with active-high reset inputs.
What package type and dimensions does MAX6388XS16D7-T use, and is it RoHS-compliant?
The MAX6388XS16D7-T uses a 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 1.6mm × 1.6mm × 0.9mm with gull-wing leads. The "+T" suffix confirms it is lead(Pb)-free and RoHS-compliant. This compact footprint supports high-density PCB layouts in portable and automotive electronics, and its thermal resistance (θJA = 322.6°C/W on multilayer board) is optimized for low-power operation without heatsinking.
How does MAX6388XS16D7-T handle short-duration VCC transients, and what design guidance applies?
The MAX6388XS16D7-T provides inherent immunity to negative-going VCC transients: for a 100mV overdrive (i.e., VCC dipping 100mV below 1.58V), it tolerates glitches up to 150µs without asserting spurious reset. To enhance immunity, place a 0.1µF ceramic capacitor as close as possible to the VCC pin. This design practice, validated in the MAX6388XS16D7-T datasheet, suppresses high-frequency noise and improves reliability in electrically noisy environments like motor drives or automotive power domains.
MAX6388XS16D7-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:
- 1.58V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 1.2s Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6388XS16D7-T FAQ
1.How can I place an order for MAX6388XS16D7-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6388XS16D7-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 MAX6388XS16D7-T reliable?
The price and inventory of MAX6388XS16D7-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6388XS16D7-T is usually 5 days.
3.What payment methods are accepted for MAX6388XS16D7-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6388XS16D7-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6388XS16D7-T?
MAX6388XS16D7-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6388XS16D7-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 MAX6388XS16D7-T?
For technical support, including MAX6388XS16D7-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6388XS16D7-T requirements.
6.How does Aetrix verify that MAX6388XS16D7-T is sourced from the original manufacturer or authorized distributors?
All MAX6388XS16D7-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 MAX6388XS16D7-T meets industry standards.
7.What is the process for return or replacement of MAX6388XS16D7-T?
All MAX6388XS16D7-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6388XS16D7-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 MAX6388XS16D7-T part is unused and in its original packaging.
Return procedure for MAX6388XS16D7-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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