My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6316LUK29DY+T
- Part No.:
- MAX6316LUK29DY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6316LUK29DY+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6316LUK29DY+T from Maxim Integrated is a 5-pin SOT23 microprocessor supervisory circuit with active-low push/pull reset output, 2.93V factory-trimmed reset threshold, 140ms minimum reset timeout, and 1.6s typical watchdog timeout. It monitors VCC supply integrity and provides manual reset and watchdog supervision for embedded controllers in battery-powered systems.
For engineers reviewing the MAX6316LUK29DY+T datasheet, MAX6316LUK29DY+T pinout, MAX6316LUK29DY+T application, or MAX6316LUK29DY+T equivalent, key selection criteria include guaranteed reset validity down to VCC = 1V, immunity to short negative VCC transients (<4µs at 100mV under threshold), integrated 4.7kΩ MR pullup, and AEC-Q100 qualification for automotive-temperature operation (-40°C to +125°C).
Technical Context
The MAX6316LUK29DY+T implements a precision voltage monitor with factory-laser-trimmed resistive divider setting VRST = 2.93V ±1.5% at +25°C and ±2.5% over -40°C to +125°C. Its reset generator asserts active-low RESET for ≥140ms after VCC rises above threshold, with propagation delay <40µs during VCC fall.
It integrates a watchdog timer cleared by WDI edge transitions (min pulse width 50ns) and a manual reset input (MR) with 1µs minimum pulse width and 100ns glitch rejection. The push/pull RESET output sources/sinks current up to 1.2mA at VCC ≥2.7V (VOL ≤0.3V) and maintains valid logic levels down to VCC = 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±1.5% at +25°C; ensures reliable brownout detection for 3.3V systems |
| Reset Timeout | 140ms minimum; guarantees sufficient hold time for microprocessor initialization |
| Watchdog Timeout | 1.6s typical; enables robust software execution monitoring in embedded firmware |
| Supply Current | 5µA typical at VCC = 3.6V; supports ultra-low-power battery operation |
| Operating Temp | -40°C to +125°C; qualified for automotive and industrial environments |
| VCC Range | 1.0V to 5.5V; maintains functional reset assertion even during deep brownout |
| Reset Output Type | Active-low push/pull; eliminates need for external pullup resistor |
Pinout & Package
MAX6316LUK29DY+T is housed in a RoHS-compliant 5-pin SOT23 package (package code U5+2A, outline 21-0057), measuring 2.9mm × 1.6mm × 1.1mm, with thermal resistance θJA = 255.9°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low push/pull reset output; sinks 1.2mA at VCC ≥2.7V, sources current to VCC |
| 2 | GND | Ground reference for all internal circuitry and reset timing |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC via 52kΩ resistor |
| 4 | WDI | Watchdog input; edge-triggered reset enable; accepts 50ns pulses |
| 5 | VCC | Supply input; reset asserted when VCC falls below 2.93V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.93V with ±1.5% tolerance at +25°C enables precise 3.3V system monitoring without calibration |
| Guaranteed reset validity to VCC = 1V | Ensures deterministic reset behavior during deep power collapse, critical for automotive cold-crank scenarios |
| Immunity to short negative VCC transients | Withstands 200ns ground-to-VCC glitches without spurious reset, eliminating need for additional supply filtering |
| No external components required | Integrated MR pullup, precision voltage reference, and push/pull output reduce BOM count and PCB area |
| AEC-Q100 qualified | Validated for automotive applications including engine control, body electronics, and ADAS subsystems |
Applications
| Portable/Battery-Powered Equipment | Embedded Control Systems |
|---|---|
Use Scenario: Power management in handheld medical devices with Li-ion battery supply. IC Role / Device Role / Timing Role: Monitors battery voltage decay and asserts reset before brownout-induced MCU corruption. Use Value: Prevents data loss during low-battery shutdown using 140ms reset hold time and 2.93V threshold aligned to 3.3V rail collapse point. | Use Scenario: Supervision of industrial PLC CPU modules operating in wide-temperature environments. IC Role / Device Role / Timing Role: Provides watchdog supervision and manual reset for firmware recovery in distributed I/O controllers. Use Value: 1.6s watchdog timeout allows safe execution window for complex control loops while maintaining -40°C to +125°C operational reliability. |
| Intelligent Instruments | Automotive Body Electronics |
Use Scenario: Reset coordination in portable oscilloscopes with dual-domain power supplies. IC Role / Device Role / Timing Role: Generates synchronized active-low reset for analog front-end and digital processing ASICs. Use Value: Push/pull output drives multiple loads directly; no external pullup needed, reducing layout complexity and leakage paths. | Use Scenario: Door module ECU supervision where cold-crank voltage dips to 1.0V. IC Role / Device Role / Timing Role: Maintains valid reset assertion during engine start-up transients using guaranteed operation down to VCC = 1V. Use Value: Eliminates risk of MCU lockup during cranking by asserting reset until stable 3.3V rail is restored and held for 140ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316MUK29DY+T | Bidirectional active-low RESET output instead of push/pull; includes 4.7kΩ internal pullup and active P-channel pullup FET | Required for interfacing with Motorola 68HC11-style bidirectional reset pins; not drop-in compatible due to different reset drive architecture | Select MAX6316MUK29DY+T only when MCU requires bidirectional reset signaling with fast rise-time capability under capacitive load |
| TPS3808G18DBVR | 1.8V fixed reset threshold; 200ms reset timeout; no watchdog function; 1.8–6V VCC range | Lacks watchdog supervision and manual reset; suited for simple power-on reset only, not for firmware crash recovery | Choose TPS3808G18DBVR for cost-sensitive, non-watchdog applications requiring lower threshold voltage and higher VCC max rating |
Compared with MAX6316LUK29DY+T, MAX6316MUK29DY+T offers superior reset line rise-time control for multi-device buses but requires MCU-level bidirectional support, while TPS3808G18DBVR reduces system complexity where watchdog functionality is unnecessary and 1.8V threshold suffices.
Availability
MAX6316LUK29DY+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded control systems, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6316LUK29DY+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 high-performance analog and mixed-signal ICs for power, sensing, and interface applications.
The MAX6316–MAX6322 family delivers microprocessor supervisory functions with factory-trimmed thresholds, watchdog timers, and manual reset inputs specifically for automotive, industrial, and battery-powered embedded systems.
FAQ
What is the exact reset threshold voltage of MAX6316LUK29DY+T and how tightly is it specified?
The MAX6316LUK29DY+T has a factory-trimmed nominal reset threshold of 2.93V, specified as ±1.5% at +25°C and ±2.5% over the full operating temperature range of -40°C to +125°C. This precision is achieved via laser trimming of an internal voltage divider, ensuring consistent brownout detection in 3.3V systems without external calibration. The threshold hysteresis is 3mV, preventing oscillation near the trip point.
Does MAX6316LUK29DY+T support manual reset functionality, and what are its timing requirements?
Yes, MAX6316LUK29DY+T supports manual reset via the MR pin, which is active-low and internally pulled up to VCC with a 52kΩ resistor. A logic-low pulse of minimum 1µs (at -40°C to +85°C) or 1.5µs (at -40°C to +125°C) on MR forces reset assertion for the full 140ms timeout period. The MR input rejects 100ns glitches and is compatible with TTL/CMOS logic levels depending on system VCC.
How does the watchdog feature of MAX6316LUK29DY+T operate, and what is its timeout accuracy?
The MAX6316LUK29DY+T watchdog timer has a typical timeout of 1.6s, with factory-trimmed accuracy across temperature. It clears on any rising or falling edge at the WDI pin (minimum pulse width 50ns) and also resets during active reset assertion. If WDI remains static beyond the timeout, RESET asserts. When WDI is left unconnected, the internal counter services the watchdog with low-high-low pulses at 7/8 of the nominal period, maintaining supervision without MCU intervention.
What is the operating voltage range of MAX6316LUK29DY+T, and why is VCC = 1V significant?
MAX6316LUK29DY+T operates from VCC = 1.0V to 5.5V. The 1.0V lower limit is critical because the device guarantees valid RESET output levels (logic low/high) down to this voltage - unlike many supervisors that fail below 1.8V. This ensures deterministic reset behavior during automotive cold-crank events or deep battery discharge, where supply may dip to 1.0V before recovering.
Is MAX6316LUK29DY+T compatible with AEC-Q100 automotive qualification, and what does that entail?
Yes, MAX6316LUK29DY+T is AEC-Q100 qualified (Grade 1: -40°C to +125°C). This certification validates its reliability for automotive applications through stress testing including HTOL (high-temperature operating life), TC (temperature cycling), and ESD (HBM ≥2kV). The qualification confirms suitability for body electronics, infotainment, and ADAS subsystems where extended temperature operation and long-term stability are mandatory.
MAX6316LUK29DY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 1.12s Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6316LUK29DY+T FAQ
1.How can I place an order for MAX6316LUK29DY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6316LUK29DY+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 MAX6316LUK29DY+T reliable?
The price and inventory of MAX6316LUK29DY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6316LUK29DY+T is usually 5 days.
3.What payment methods are accepted for MAX6316LUK29DY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6316LUK29DY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6316LUK29DY+T?
MAX6316LUK29DY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6316LUK29DY+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 MAX6316LUK29DY+T?
For technical support, including MAX6316LUK29DY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6316LUK29DY+T requirements.
6.How does Aetrix verify that MAX6316LUK29DY+T is sourced from the original manufacturer or authorized distributors?
All MAX6316LUK29DY+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 MAX6316LUK29DY+T meets industry standards.
7.What is the process for return or replacement of MAX6316LUK29DY+T?
All MAX6316LUK29DY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6316LUK29DY+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 MAX6316LUK29DY+T part is unused and in its original packaging.
Return procedure for MAX6316LUK29DY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6316LUK29DY+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…
