My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6385XS16D7-T
- Part No.:
- MAX6385XS16D7-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS16D7-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,912
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6385XS16D7-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 1.58V reset threshold (±2.5% over –40°C to +125°C), 1200ms VCC reset timeout, and debounced manual reset input. It monitors single supply voltage in battery-powered embedded systems where reliable power-on reset and brownout protection are critical.
For engineers reviewing the MAX6385XS16D7-T datasheet, MAX6385XS16D7-T pinout, MAX6385XS16D7-T application, or MAX6385XS16D7-T equivalent, key selection criteria include reset threshold accuracy at temperature extremes, guaranteed valid reset output down to VCC = 1V, manual reset pulse handling, and compatibility with 4-pin SC70 layout constraints.
Technical Context
The MAX6385XS16D7-T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 1200ms minimum reset timeout after VCC rises above 1.58V or after MR release.
It features an internal 63kΩ pullup on the MR pin, accepts TTL/CMOS-compatible logic levels, and guarantees correct RESET logic state for VCC ≥ 1V. The active-high push-pull output drives high during reset assertion and sinks up to 1.2mA at VCC ≥ 2.5V with VOL ≤ 0.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.58V (factory-set, ±2.5% over –40°C to +125°C) - ensures reliable detection of 1.8V rail brownout before system instability |
| VCC Reset Timeout | 1200ms min - provides sufficient hold time for slow-ramping microcontrollers and FPGA configuration |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Reset Output Type | Active-high push-pull - eliminates need for external pullup resistor and supports direct connection to μP RESET pin |
| Manual Reset Input | Debounced MR with 63kΩ internal pullup - allows momentary switch interface without external RC filtering |
| Operating Voltage Range | 1.0V to 5.5V - supports valid reset assertion even during deep brownout recovery |
| Package | 4-pin SC70 (X4+1 outline) - 1.3mm × 1.7mm footprint ideal for space-constrained portable designs |
Pinout & Package
MAX6385XS16D7-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.3mm × 1.7mm × 0.95mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail - must be decoupled with 0.1μF capacitor near pin |
| 2 | RESET | Active-high push-pull reset output - drives high during reset; sinks 1.2mA max at VCC ≥ 2.5V |
| 3 | MR | Active-low manual reset input - internally pulled up to VCC; requires <100ns glitch rejection for noise immunity |
| 4 | GND | Analog/digital ground reference - must connect directly to low-impedance system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 1.58V with ±2.5% tolerance over full automotive temperature range - eliminates calibration overhead in production test |
| Guaranteed reset validity | Operates correctly down to VCC = 1V - ensures deterministic reset behavior during ultra-low-voltage brownout recovery |
| Integrated MR pullup | 63kΩ internal resistor - enables direct switch-to-ground interface without external components |
| Negative-going transient immunity | Rejects VCC glitches <150µs wide at 100mV overdrive - prevents spurious resets in electrically noisy environments |
| Low quiescent current | 3μA at 1.8V - extends battery life in always-on monitoring applications beyond 10 years |
Applications
| Power Monitoring in Portable Devices | Critical μP Reset in Industrial Controllers |
|---|---|
Use Scenario: Monitoring 1.8V LDO output in handheld medical sensor with coin-cell battery. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high RESET to ARM Cortex-M0+ during brownout. Use Value: 1.58V threshold aligns precisely with 1.8V rail dropout margin; 1200ms timeout accommodates slow battery recovery. | Use Scenario: Ensuring deterministic boot sequence in PLC I/O module powered by dual 3.3V/5V rails. IC Role / Device Role / Timing Role: Primary reset generator triggered by main 3.3V supply; MR used for firmware-initiated watchdog reset. Use Value: Active-high push-pull output interfaces directly with μP RESET pin; MR debounce eliminates contact bounce issues. |
| Battery-Powered IoT Node | Dual-Voltage System Supervision |
Use Scenario: Ultra-low-power environmental monitor using LoRaWAN transceiver and 1.8V MCU core. IC Role / Device Role / Timing Role: Single-supply supervisor for 1.8V domain with manual reset for field firmware updates. Use Value: 3μA supply current minimizes standby drain; MR input enables safe reprogramming without power cycle. | Use Scenario: Monitoring both 1.2V core and 3.3V I/O supplies in FPGA-based edge gateway. IC Role / Device Role / Timing Role: Standalone supervisor for primary 3.3V rail; RESET IN pin not used (MAX6385 variant). Use Value: Pin-compatible upgrade path from legacy MAX809; 4-pin SC70 saves PCB area versus 3-pin alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T | 3-pin SC70, 2.93V reset threshold, 240ms timeout, no MR input | Lacks manual reset; unsuitable for field-serviceable devices requiring hardware reset | Select when only basic power-on reset is needed and board space is extremely constrained |
| TPS3808G15DBVR | 6-pin SOT-23, 1.5V threshold, adjustable timeout via capacitor, 1.6μA typical ICC | Requires external timing capacitor; higher pin count increases routing complexity | Select when timeout flexibility or lower quiescent current outweighs 4-pin SC70 footprint advantage |
Compared with MAX809TRD2T and TPS3808G15DBVR, the MAX6385XS16D7-T uniquely combines 4-pin SC70 compactness, factory-set 1.58V threshold, 1200ms timeout, and integrated MR-making it optimal for space-limited, battery-operated systems requiring field-reset capability without design compromises.
Availability
MAX6385XS16D7-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, critical μP and μC power monitoring, and intelligent instruments requiring stable component supply throughout product lifecycles.
Supply support for MAX6385XS16D7-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 computing applications, with emphasis on reliability and low-power operation.
The MAX6381–MAX6390 family delivers single/dual low-voltage supervisory circuits optimized for battery-powered and automotive-grade embedded systems requiring guaranteed reset behavior across extreme temperatures.
FAQ
What is the exact reset threshold voltage of MAX6385XS16D7-T and how stable is it over temperature?
The MAX6385XS16D7-T has a factory-set reset threshold of 1.58V, specified with ±2.5% tolerance over the full operating range of –40°C to +125°C. Its temperature coefficient is 60ppm/°C, meaning threshold drift is limited to ±0.015V across the entire temperature span. This stability ensures consistent brownout detection in automotive and industrial environments where ambient temperature swings are severe.
Does MAX6385XS16D7-T support manual reset, and what are the electrical requirements for the MR pin?
Yes, MAX6385XS16D7-T includes a debounced manual reset input (MR) with an internal 63kΩ pullup resistor to VCC. To assert reset, drive MR below 0.3×VCC (for VTH < 4V) with a minimum pulse width of 1μs. The input rejects glitches shorter than 100ns and tolerates voltages from –0.3V to (VCC + 0.3V). Leaving MR unconnected defaults it to high via the internal pullup.
What is the function of the RESET output on MAX6385XS16D7-T, and what load can it drive?
The RESET output of MAX6385XS16D7-T is an active-high push-pull driver. During reset assertion, it drives high; otherwise, it pulls low. It can sink up to 1.2mA at VCC ≥ 2.5V with VOL ≤ 0.3V, and source up to 500μA with VOH ≥ 0.8×VCC. This eliminates the need for external pullup resistors and allows direct interfacing with standard CMOS μP reset inputs.
Can MAX6385XS16D7-T operate reliably at very low supply voltages, and what is its minimum functional VCC?
Yes, MAX6385XS16D7-T guarantees correct RESET output logic state down to VCC = 1.0V, as confirmed in its Absolute Maximum Ratings and Electrical Characteristics tables. Below 1.0V, reset behavior is not specified. This capability ensures deterministic reset assertion during deep brownout conditions common in battery-depleted portable systems.
What package type and dimensions does MAX6385XS16D7-T use, and are there layout considerations?
MAX6385XS16D7-T uses a 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.3mm × 1.7mm × 0.95mm. Key layout recommendations include placing a 0.1μF ceramic capacitor between VCC and GND as close as possible to the device, using short traces for MR and RESET, and connecting GND to a solid ground plane to minimize noise coupling into the sensitive reset comparator.
MAX6385XS16D7-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:
- 1.58V
- 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
MAX6385XS16D7-T FAQ
1.How can I place an order for MAX6385XS16D7-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS16D7-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 MAX6385XS16D7-T reliable?
The price and inventory of MAX6385XS16D7-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS16D7-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS16D7-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS16D7-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS16D7-T?
MAX6385XS16D7-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS16D7-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 MAX6385XS16D7-T?
For technical support, including MAX6385XS16D7-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS16D7-T requirements.
6.How does Aetrix verify that MAX6385XS16D7-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS16D7-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 MAX6385XS16D7-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS16D7-T?
All MAX6385XS16D7-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS16D7-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 MAX6385XS16D7-T part is unused and in its original packaging.
Return procedure for MAX6385XS16D7-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6385XS16D7-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…
