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Analog Devices Inc./Maxim Integrated MAX6388XS17D1-T
- Part No.:
- MAX6388XS17D1-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6388XS17D1-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,229
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Product details
Overview
MAX6388XS17D1-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 1.67V VCC reset threshold (±2.5% over -40°C to +125°C), 140ms minimum 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 MAX6388XS17D1-T datasheet, MAX6388XS17D1-T pinout, MAX6388XS17D1-T application, or MAX6388XS17D1-T equivalent, this page delivers verified specifications, package mapping, functional context for dual-supply monitoring, and validated alternative options - all confirmed against Maxim's official documentation and ordering guide.
Technical Context
The MAX6388XS17D1-T integrates a precision voltage comparator for VCC monitoring and a separate high-impedance RESET IN comparator referenced to +1.27V, enabling independent supervision of a second rail via external resistor divider. Its reset assertion logic triggers on either VCC falling below 1.67V or RESET IN dropping below 1.27V.
It features an active-high push-pull RESET output guaranteed valid down to VCC = 1V, no manual reset input (MR), and supports stable operation across -40°C to +125°C. The device uses BiCMOS process technology and is RoHS-compliant in its SC70-4 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 1.67V (nominal), ±2.5% over -40°C to +125°C - ensures accurate brownout detection across automotive/industrial temperature range |
| Reset Timeout Period | 140ms (minimum) - guarantees sufficient processor hold time during power recovery |
| Supply Current | 3μA at VCC = 1.8V - enables multi-year battery life in portable equipment |
| Operating Voltage Range | 1.0V to 5.5V - supports core and I/O rails from ultra-low-voltage MCUs to 5V legacy systems |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup and drives directly into μP reset pin |
| RESET IN Threshold | +1.27V (±2.5% over temp) - allows precise user-defined secondary voltage monitoring via resistor divider |
| Input Leakage (RESET IN) | ±50nA - permits use of high-value resistors (>100kΩ) without threshold error |
Pinout & Package
MAX6388XS17D1-T is housed in a 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm, with lead-free/RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and primary voltage monitor rail - powers internal circuitry and sets reset condition when falling below 1.67V |
| 2 | RESET | Active-high push-pull output - asserts high during fault; deasserts low after timeout; drives μP reset pin directly |
| 3 | GND | Analog/digital ground reference - must be connected to system ground plane for accurate threshold sensing |
| 4 | RESET IN | Auxiliary voltage monitor input - compared to internal 1.27V reference; enables dual-rail supervision without external comparator |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | VCC and RESET IN each have dedicated comparators - supports simultaneous core/I/O rail supervision in SoC or FPGA systems |
| Factory-trimmed reset threshold | 1.67V ±2.5% over full temperature range - eliminates calibration overhead and improves BOM consistency |
| Negative-going VCC transient immunity | Rejects glitches <10µs wide at 100mV overdrive - prevents spurious resets in noisy power environments |
| Guaranteed operation down to VCC = 1V | RESET output remains logically valid even as supply collapses - ensures deterministic reset behavior during deep brownout |
| Low quiescent current | 3μA at 1.8V - reduces load on battery or energy-harvesting sources in always-on monitoring applications |
Applications
| Industrial PLC Power Sequencing | Automotive ADAS Camera Module |
|---|---|
|
Use Scenario: Monitoring both 3.3V I/O and 1.2V core supplies in programmable logic controllers during cold-start and load-dump conditions. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting active-high RESET to FPGA upon either rail collapse, with 140ms hold time ensuring configuration stability. Use Value: Eliminates need for two discrete supervisors; RESET IN input configured for 1.2V core via 100kΩ/100kΩ divider yields ±0.5% threshold accuracy. |
Use Scenario: Ensuring safe boot of image signal processor (ISP) in rear-view camera modules exposed to automotive temperature cycling and EMI. IC Role / Device Role / Timing Role: Supervises 5V analog front-end and 1.8V digital domain; RESET IN monitors 1.8V rail while VCC monitors 5V supply. Use Value: AEC-Q100 qualified variant available; 1.67V threshold matches typical 1.8V LDO dropout margin, preventing premature release during voltage sag. |
| Medical Wearable Sensor Hub | IoT Edge Node with Dual Batteries |
|
Use Scenario: Long-life wearable patch monitoring ECG and SpO₂, powered by coin cell with regulated 1.8V and unregulated 2.8V rails. IC Role / Device Role / Timing Role: VCC monitors 1.8V regulated rail; RESET IN monitors 2.8V battery voltage via divider to detect end-of-life (<2.4V). Use Value: 3μA supply current extends battery life beyond 3 years; 140ms timeout accommodates slow LDO startup without false triggering. |
Use Scenario: LoRaWAN node using primary Li-SOCl₂ and backup supercapacitor, requiring coordinated reset across both power sources. IC Role / Device Role / Timing Role: VCC tied to main battery rail; RESET IN monitors supercap voltage to force reset if backup falls below 2.0V during switchover. Use Value: Enables seamless failover detection without microcontroller intervention; ±50nA RESET IN leakage avoids measurable drain on backup source. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6387XS17D1-T | Identical threshold (1.67V), timeout (140ms), and package, but features open-drain active-low RESET output | Requires external pullup resistor; incompatible with μP reset pins expecting active-high assertion | Select MAX6387XS17D1-T only if system design mandates open-drain reset signaling or level translation |
| TLV803EB16DBVR | 1.6V threshold (±1%), 140ms timeout, SOT-23-3 package; no RESET IN input; 0.5μA supply current at 1.8V | Lacks dual-supply monitoring capability; smaller footprint but single-rail only | Choose TLV803EB16DBVR for space-constrained, single-rail applications where ultra-low current outweighs auxiliary monitoring need |
Compared with MAX6387XS17D1-T, the MAX6388XS17D1-T provides direct active-high drive eliminating pullup components; versus TLV803EB16DBVR, it adds critical dual-rail supervision at modest current cost - making it optimal for systems requiring coordinated reset across core and I/O domains.
Availability
MAX6388XS17D1-T is available at Aetrix Electronics and suitable for industrial PLC power sequencing, automotive ADAS camera modules, medical wearable sensor hubs, and IoT edge nodes requiring stable component supply with long-term lifecycle support.
Supply support for MAX6388XS17D1-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, with emphasis on reliability, low power, and integration.
The MAX6381–MAX6390 family delivers single/dual low-voltage supervisory circuits optimized for battery-powered, automotive, and high-reliability embedded systems requiring guaranteed reset behavior across extreme temperatures.
FAQ
What is the exact reset threshold voltage of MAX6388XS17D1-T and how stable is it over temperature?
The MAX6388XS17D1-T has a factory-set nominal VCC reset threshold of 1.67V, with guaranteed tolerance of ±2.5% across the full operating range of -40°C to +125°C. This stability is achieved through laser-trimmed internal references and BiCMOS process matching, ensuring consistent brownout detection without external calibration. The MAX6388XS17D1-T maintains this accuracy even under rapid thermal transients common in automotive under-hood environments.
Does MAX6388XS17D1-T support monitoring of a second voltage rail, and how is it implemented?
Yes, the MAX6388XS17D1-T includes a dedicated RESET IN input that compares an external voltage to an internal +1.27V reference. To monitor a second rail, connect a resistor divider between that rail and GND, with the midpoint fed to RESET IN. For example, to supervise a 3.3V rail at 2.5V threshold, use R1 = 182kΩ and R2 = 100kΩ. The MAX6388XS17D1-T's ±50nA input leakage ensures minimal error from divider current.
What is the function of the RESET output on MAX6388XS17D1-T, and what are its drive capabilities?
The RESET output of the MAX6388XS17D1-T is an active-high push-pull driver, meaning it actively drives high during reset assertion and low during deassertion - no external pullup required. It sources up to 800µA at VCC ≥ 4.5V and sinks up to 3.2mA, compatible with standard CMOS μP reset inputs. The MAX6388XS17D1-T guarantees correct logic state down to VCC = 1V, ensuring deterministic behavior during deep brownout.
Is MAX6388XS17D1-T suitable for automotive applications, and what qualification does it hold?
The MAX6388XS17D1-T itself is not automotive-qualified; however, the identical functionality is available in automotive-grade variants denoted by "/V" suffix (e.g., MAX6388XS17D1/V+T), which are AEC-Q100 qualified for Grade 1 (-40°C to +125°C). These /V versions undergo additional stress testing and lot traceability per automotive standards. For non-automotive industrial use, the standard MAX6388XS17D1-T meets full specification including temperature range and reliability metrics.
How does the 140ms reset timeout of MAX6388XS17D1-T impact system startup timing?
The 140ms minimum reset timeout ensures the MAX6388XS17D1-T holds its active-high RESET signal for at least 140ms after VCC rises above 1.67V, providing ample time for power supplies, clocks, and memory to stabilize before releasing the microprocessor from reset. This duration aligns with typical FPGA configuration times and DDR initialization sequences. The MAX6388XS17D1-T timeout is monotonic across temperature, varying less than ±5% from -40°C to +125°C per characterization data.
MAX6388XS17D1-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:
- 1.67V, 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
MAX6388XS17D1-T FAQ
1.How can I place an order for MAX6388XS17D1-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6388XS17D1-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 MAX6388XS17D1-T reliable?
The price and inventory of MAX6388XS17D1-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6388XS17D1-T is usually 5 days.
3.What payment methods are accepted for MAX6388XS17D1-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6388XS17D1-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6388XS17D1-T?
MAX6388XS17D1-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6388XS17D1-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 MAX6388XS17D1-T?
For technical support, including MAX6388XS17D1-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6388XS17D1-T requirements.
6.How does Aetrix verify that MAX6388XS17D1-T is sourced from the original manufacturer or authorized distributors?
All MAX6388XS17D1-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 MAX6388XS17D1-T meets industry standards.
7.What is the process for return or replacement of MAX6388XS17D1-T?
All MAX6388XS17D1-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6388XS17D1-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 MAX6388XS17D1-T part is unused and in its original packaging.
Return procedure for MAX6388XS17D1-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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