My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6385XS17D7-T
- Part No.:
- MAX6385XS17D7-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS17D7-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,164
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6385XS17D7-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 1.67V reset threshold, 1200ms VCC reset timeout, and manual reset input. It monitors single-supply rails from +1.8V to +5.0V, consumes only 3μA at +1.8V, and guarantees valid reset output down to VCC = 1V. It is used in battery-powered embedded controllers requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6385XS17D7-T datasheet, MAX6385XS17D7-T pinout, MAX6385XS17D7-T application, or MAX6385XS17D7-T equivalent, key selection criteria include its active-high push-pull output logic, 1.67V ±2.5% threshold accuracy over –40°C to +125°C, 1200ms minimum VCC reset timeout, integrated MR pullup (63kΩ), and 4-pin SC70 package compatibility with space-constrained portable designs.
Technical Context
The MAX6385XS17D7-T implements a precision bandgap-based voltage comparator monitoring VCC against a fixed 1.67V threshold, with ±2.5% accuracy across –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a guaranteed-minimum 1200ms reset assertion after VCC rises above threshold.
It features an active-low manual reset input (MR) with internal 63kΩ pullup resistor, supporting TTL/CMOS-compatible triggering and debounced operation without external components. Reset asserts on VCC drop below threshold or MR low, and remains asserted for the full 1200ms timeout after either condition clears.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V ±2.5% (factory-trimmed; ensures reliable detection of 1.8V rail brownout) |
| VCC Reset Timeout | 1200ms min (guarantees μP initialization completes before release) |
| Supply Current | 3μA at +1.8V (enables multi-year operation in coin-cell–powered IoT sensors) |
| Operating Voltage | +1.0V to +5.5V (supports valid reset assertion even during deep brownout) |
| Output Type | Active-high push-pull (drives high during reset; no external pullup required) |
| Manual Reset Input | MR with 63kΩ internal pullup (simplifies board layout; eliminates discrete resistor) |
| Temp Range | –40°C to +125°C (qualified for automotive under-hood and industrial control environments) |
Pinout & Package
MAX6385XS17D7-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 portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail; powers internal circuitry and enables reset detection |
| 2 | RESET | Active-high push-pull output; drives high during reset assertion; sinks current when deasserted |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC (63kΩ); initiates reset when pulled to GND |
| 4 | GND | Analog/digital ground reference; must be connected to system ground plane for stable threshold operation |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.67V threshold | Eliminates external resistor divider; reduces BOM count and layout area in 1.8V systems |
| 1200ms VCC reset timeout | Ensures sufficient time for slow-ramping power supplies and flash memory initialization |
| Active-high push-pull RESET | Directly interfaces with μP reset inputs requiring high-active logic; no pullup resistor needed |
| MR with 63kΩ internal pullup | Supports momentary switch connection without external biasing; simplifies mechanical reset design |
| –40°C to +125°C operation | Validates performance across automotive and industrial temperature extremes without derating |
Applications
| Industrial PLC Controller | Medical Wearable Sensor |
|---|---|
Use Scenario: Power-up sequencing and brownout recovery in DIN-rail mounted programmable logic controllers exposed to 24V supply fluctuations. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high reset to ARM Cortex-M7 MCU until 3.3V rail stabilizes for ≥1200ms. Use Value: Prevents firmware corruption during factory floor voltage sags by guaranteeing minimum reset hold time independent of input ripple. | Use Scenario: Battery-backed ECG patch operating from single 3.0V Li-ion cell with aging-induced voltage droop. IC Role / Device Role / Timing Role: Monitors core rail at 1.67V threshold and triggers reset before ADC reference collapse compromises signal integrity. Use Value: Extends usable battery life by enabling safe operation down to 1.8V while maintaining deterministic reset behavior. |
| Automotive Body Control Module | Smart Home Hub Power Management |
Use Scenario: Cold-cranking event in 12V automotive system where battery dips to 6V before alternator engagement. IC Role / Device Role / Timing Role: Detects 1.67V threshold breach on 1.8V I/O rail and holds MCU in reset for full 1200ms after recovery. Use Value: Meets AEC-Q100 Grade 2 requirements by ensuring no spurious wake-up during transient undervoltage. | Use Scenario: Dual-rail (3.3V/1.8V) smart speaker SoC powering audio codec and Wi-Fi subsystems. IC Role / Device Role / Timing Role: Provides synchronized reset to both domains using single 1.67V threshold aligned with 1.8V LDO output. Use Value: Eliminates need for dual-supply supervisors; reduces component count and inter-rail timing skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR17D7+T | Same 1.67V threshold and 1200ms timeout, but active-low open-drain output; requires external pullup resistor | Suitable for legacy designs with active-low reset inputs and existing pullup networks | Select when interfacing with older μPs requiring active-low assertion and board layout already includes pullup |
| TPS3808G17DBVR | 1.67V threshold, 1200ms timeout, active-high push-pull, but higher 8μA supply current at 1.8V and no MR input | Applicable where manual reset is unnecessary and higher quiescent current is acceptable | Choose when MR functionality is unused and supply current budget allows >2× increase over MAX6385XS17D7-T |
Compared with MAX6326XR17D7+T and TPS3808G17DBVR, the MAX6385XS17D7-T uniquely combines active-high push-pull output, integrated MR pullup, and ultra-low 3μA supply current-making it optimal for new energy-sensitive designs requiring manual reset capability without layout overhead.
Availability
MAX6385XS17D7-T is available at Aetrix Electronics and suitable for industrial PLC controllers, medical wearable sensors, automotive body control modules, and smart home hub power management requiring stable component supply and long-term lifecycle support.
Supply support for MAX6385XS17D7-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 low-power, high-accuracy μP supervisory circuits targeting space- and energy-constrained embedded systems requiring guaranteed reset timing and wide-temperature reliability.
FAQ
What is the exact reset threshold voltage of the MAX6385XS17D7-T?
The MAX6385XS17D7-T has a factory-trimmed reset threshold of 1.67V, with guaranteed accuracy of ±2.5% over the full –40°C to +125°C temperature range. This value is confirmed in the Reset Thresholds table of the datasheet (suffix "17" corresponds to 1.62V min / 1.67V nom / 1.71V max), and applies specifically to the MAX6385XS17D7-T variant-not the broader MAX6385 family.
Does the MAX6385XS17D7-T support manual reset functionality?
Yes, the MAX6385XS17D7-T includes a dedicated MR (manual reset) input on Pin 3, which is active-low and features an internal 63kΩ pullup resistor to VCC. Driving MR low forces reset assertion for the full 1200ms timeout period, and the device remains in reset for that duration after MR is released-exactly as specified for the MAX6385XS17D7-T in the Selector Guide and Pin Description sections.
What package type and dimensions does the MAX6385XS17D7-T use?
The MAX6385XS17D7-T is supplied in a 4-pin SC70 package (outline number 21-0098), measuring 2.0mm × 2.1mm × 0.95mm. This matches the ordering information entry "MAX6385XS_ _D_+T" and is distinct from the 3-pin SC70 (used by MAX6381–MAX6383) and 6-pin μDFN (used by LT-suffixed variants) packages in the same family.
Is the MAX6385XS17D7-T qualified for automotive applications?
No-the MAX6385XS17D7-T is not automotive-qualified. While it operates across –40°C to +125°C, only parts with the "/V" suffix (e.g., MAX6385XS17D7/V+T) are AEC-Q100 qualified. The "+T" suffix on MAX6385XS17D7-T indicates RoHS compliance and tape-and-reel packaging, but no automotive qualification is claimed or documented for this specific part number.
What is the supply current consumption of the MAX6385XS17D7-T at 1.8V?
The MAX6385XS17D7-T draws 3μA typical supply current at +1.8V and +25°C, with a maximum of 6μA over temperature, as specified in the Electrical Characteristics table under "VCC Supply Current". This ultra-low quiescent current is a defining feature of the MAX6385XS17D7-T and is validated across the full operating temperature range.
MAX6385XS17D7-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:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.67V
- 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
MAX6385XS17D7-T FAQ
1.How can I place an order for MAX6385XS17D7-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS17D7-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 MAX6385XS17D7-T reliable?
The price and inventory of MAX6385XS17D7-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS17D7-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS17D7-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS17D7-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS17D7-T?
MAX6385XS17D7-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS17D7-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 MAX6385XS17D7-T?
For technical support, including MAX6385XS17D7-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS17D7-T requirements.
6.How does Aetrix verify that MAX6385XS17D7-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS17D7-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 MAX6385XS17D7-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS17D7-T?
All MAX6385XS17D7-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS17D7-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 MAX6385XS17D7-T part is unused and in its original packaging.
Return procedure for MAX6385XS17D7-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6385XS17D7-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…
