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Analog Devices Inc./Maxim Integrated MAX6316LUK47BY/V+T
- Part No.:
- MAX6316LUK47BY/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6316LUK47BY/V+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,379
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Product details
Overview
MAX6316LUK47BY/V+T from Maxim Integrated is a 5-pin SOT23 microprocessor supervisory circuit with active-low push/pull reset output, 4.7V factory-trimmed reset threshold (±1.5% at +25°C), 140ms minimum reset timeout, and 1.6s typical watchdog timeout. It monitors VCC supply voltage, provides manual reset input, and ensures reliable system initialization in brownout conditions for embedded controllers and portable equipment.
For engineers reviewing the MAX6316LUK47BY/V+T datasheet, MAX6316LUK47BY/V+T pinout, MAX6316LUK47BY/V+T application, or MAX6316LUK47BY/V+T equivalent, key selection criteria include its AEC-Q100 automotive qualification, guaranteed reset validity down to VCC = 1V, immunity to short negative VCC transients (<4µs at 100mV under threshold), and integrated no-component-required supervision for 2.5V–5.5V systems.
Technical Context
The MAX6316LUK47BY/V+T implements a precision bandgap-based reset threshold detector with 40ppm/°C temperature coefficient and 3mV hysteresis, paired with a digital reset timer and independent watchdog timer. Its push/pull reset driver guarantees VOL ≤ 0.3V at ISINK = 1.2mA (VCC ≥ 2.7V) and VOH ≥ 0.8×VCC at ISOURCE = 500µA (VCC ≥ 2.7V).
It features a dedicated manual reset (MR) input with internal 52kΩ pullup, 100ns glitch rejection, and 230ns MR-to-reset propagation delay at VCC = 5V; the watchdog input (WDI) accepts 50ns minimum pulse width and clears on any edge, with internal servicing when left unconnected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.700V ±1.5% at +25°C; factory-trimmed for precise 4.7V brownout detection in 5V systems |
| Reset Timeout Period | 140ms minimum; ensures stable processor reset assertion after power-up or brownout recovery |
| Watchdog Timeout | 1.6s typical; detects software hangs in embedded firmware without requiring external timing components |
| Supply Current | 5µA typical at VCC = 3.6V; enables ultra-low-power operation in battery-powered applications |
| Operating Voltage Range | 1.0V to 5.5V; guarantees functional reset output down to VCC = 1V for robust low-voltage operation |
| Temperature Range | -40°C to +125°C; qualified per AEC-Q100 Grade 2 for automotive under-hood and industrial environments |
| Package | SOT23-5 (U5+2A); 2.9mm × 1.6mm footprint with RoHS-compliant lead-free finish |
Pinout & Package
MAX6316LUK47BY/V+T is housed in a 5-pin SOT23-5 package (package code U5+2A, outline 21-0057), optimized for space-constrained PCB layouts in automotive and portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low push/pull reset output; drives logic low (≤0.3V) or high (≥0.8×VCC) without external pullup |
| 2 | GND | Ground reference for all internal circuits and reset timing accuracy |
| 3 | MR | Manual reset input; active-low with internal 52kΩ pullup; asserts reset for full 140ms timeout on low-to-high transition |
| 4 | WDI | Watchdog input; edge-sensitive (rising/falling); resets internal watchdog timer on each transition; disabled if left floating |
| 5 | VCC | Supply voltage input; reset asserted when VCC falls below 4.7V threshold; operates from 1.0V to 5.5V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Automotive-grade reliability certified for Grade 2 (-40°C to +125°C) operation in safety-critical systems |
| No External Components Required | Integrated reset threshold, timer, watchdog, and MR pullup eliminate BOM cost and layout area for discrete supervision |
| Immunity to Short VCC Transients | Rejects <4µs negative glitches at 100mV below 4.7V threshold-prevents spurious resets during supply noise |
| Guaranteed Reset Validity to VCC = 1V | Ensures deterministic reset state even during deep brownout, critical for fail-safe controller behavior |
| Factory-Trimmed Precision | 4.7V threshold trimmed to ±1.5% at +25°C and ±2.5% over full temperature range-no calibration needed |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
|
Use Scenario: Monitors 5V supply rail in BCM microcontroller that manages door locks, lighting, and window controls. IC Role / Device Role / Timing Role: Provides power-on reset, brownout detection, and watchdog supervision to prevent erratic behavior during vehicle start-stop cycles. Use Value: AEC-Q100 qualification and 140ms reset timeout ensure reliable startup and fault recovery in harsh automotive electrical environments. |
Use Scenario: Supervises ARM Cortex-M4 MCU in modular PLC base unit powering analog/digital I/O modules. IC Role / Device Role / Timing Role: Generates clean reset signal during AC/DC converter brownout and detects firmware lockups via 1.6s watchdog timeout. Use Value: Push/pull output eliminates need for external pullup resistor, reducing component count and improving noise immunity on shared reset bus. |
| Portable Medical Monitor | Battery-Powered Smart Sensor Node |
|
Use Scenario: Ensures safe boot sequence for low-power MCU in handheld ECG monitor powered by Li-ion battery. IC Role / Device Role / Timing Role: Detects VCC drop below 4.7V as battery discharges, triggers reset before data corruption occurs. Use Value: 5µA typical supply current extends battery life; guaranteed operation down to VCC = 1V prevents premature shutdown during low-battery recovery. |
Use Scenario: Supervises ultra-low-power RISC-V SoC in wireless environmental sensor node operating from coin cell. IC Role / Device Role / Timing Role: Combines manual reset (for field firmware updates) and watchdog (for sensor readout loop monitoring) in single chip. Use Value: Integrated MR pullup and edge-triggered WDI simplify firmware design-no GPIO configuration or external debounce required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316LUK46BY/V+T | 4.63V reset threshold (vs. 4.70V); otherwise identical timing, package, and features | Suitable where tighter 4.63V brownout margin is required for 5V nominal rails with higher tolerance stack-up | Select when system VCC tolerance demands 4.63V instead of 4.70V-same footprint and pinout |
| TLV809E47DBVR | 4.7V reset only (no watchdog or manual reset); 350ms timeout; SOT23-3 package; lower quiescent current (0.5µA) | Applicable only for basic reset supervision without watchdog or MR functionality | Choose for cost-sensitive, space-constrained designs needing only power-on reset-no WDI/MR support |
Compared with MAX6316LUK47BY/V+T, MAX6316LUK46BY/V+T offers identical supervision capability with a 70mV lower threshold for tighter brownout control, while TLV809E47DBVR reduces feature set and package size but eliminates watchdog and manual reset-requiring external circuitry for those functions.
Availability
MAX6316LUK47BY/V+T is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC subsystems, portable medical monitors, and battery-powered smart sensor nodes requiring stable component supply with AEC-Q100 assurance.
Supply support for MAX6316LUK47BY/V+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.
The MAX6316–MAX6322 family delivers highly integrated μP supervision with configurable reset thresholds, watchdog timers, and multiple output types-targeting space- and reliability-critical embedded systems.
FAQ
What is the exact reset threshold voltage of MAX6316LUK47BY/V+T and how tightly is it specified?
The MAX6316LUK47BY/V+T has a factory-trimmed nominal reset threshold of 4.700V, specified as 4.630V to 4.771V at +25°C (±1.5%) and 4.583V to 4.818V over -40°C to +125°C (±2.5%). This precision eliminates need for external calibration and ensures consistent brownout detection across temperature in automotive and industrial applications.
Does MAX6316LUK47BY/V+T support watchdog functionality, and what is its timeout period?
Yes, MAX6316LUK47BY/V+T includes a watchdog timer with a typical timeout period of 1.6 seconds. The watchdog is edge-triggered on the WDI pin and clears on any rising or falling transition; if no edge occurs within 1.6s, it asserts the RESET output for the full 140ms timeout period.
What package type and RoHS status does MAX6316LUK47BY/V+T use?
MAX6316LUK47BY/V+T uses the SOT23-5 package (outline 21-0057, land pattern 90-0174) with package code U5+2A. The "+T" suffix confirms it is lead(Pb)-free and RoHS-compliant, while "/V" denotes AEC-Q100 qualification for automotive use.
How does the manual reset (MR) input behave on MAX6316LUK47BY/V+T?
On MAX6316LUK47BY/V+T, the MR input is active-low with an internal 52kΩ pullup resistor. Pulling MR low forces a reset; upon release (low-to-high transition), RESET remains asserted for the full 140ms timeout period. MR rejects 100ns glitches and requires only a momentary switch to ground-no external debouncing needed.
Is MAX6316LUK47BY/V+T compatible with systems operating below 2.5V?
Yes, MAX6316LUK47BY/V+T operates from 1.0V to 5.5V and guarantees valid reset output (VOL ≤ 0.3V, VOH ≥ 0.8×VCC) down to VCC = 1.0V. This allows reliable supervision during deep brownout conditions where other supervisors may fail, making it suitable for wide-input-range industrial and automotive power domains.
MAX6316LUK47BY/V+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:
- 4.7V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6316LUK47BY/V+T FAQ
1.How can I place an order for MAX6316LUK47BY/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6316LUK47BY/V+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 MAX6316LUK47BY/V+T reliable?
The price and inventory of MAX6316LUK47BY/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6316LUK47BY/V+T is usually 5 days.
3.What payment methods are accepted for MAX6316LUK47BY/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6316LUK47BY/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6316LUK47BY/V+T?
MAX6316LUK47BY/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6316LUK47BY/V+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 MAX6316LUK47BY/V+T?
For technical support, including MAX6316LUK47BY/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6316LUK47BY/V+T requirements.
6.How does Aetrix verify that MAX6316LUK47BY/V+T is sourced from the original manufacturer or authorized distributors?
All MAX6316LUK47BY/V+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 MAX6316LUK47BY/V+T meets industry standards.
7.What is the process for return or replacement of MAX6316LUK47BY/V+T?
All MAX6316LUK47BY/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6316LUK47BY/V+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 MAX6316LUK47BY/V+T part is unused and in its original packaging.
Return procedure for MAX6316LUK47BY/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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