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Analog Devices Inc./Maxim Integrated MAX6315US30D1+TG05
- Part No.:
- MAX6315US30D1+TG05
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6315US30D1+TG05.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,570
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Product details
Overview
MAX6315US30D1+TG05 from Maxim Integrated is a precision open-drain microprocessor reset supervisor IC designed to monitor 3.0V supply rails in embedded systems. It asserts an active-low RESET signal when VCC falls below 3.00V (±3.5% over temperature), maintains reset for a guaranteed minimum 1ms timeout after recovery, and features a debounced manual reset input (MR) with internal 63kΩ pullup. Used in battery-powered controllers and industrial microcontrollers requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6315US30D1+TG05 datasheet, MAX6315US30D1+TG05 pinout, MAX6315US30D1+TG05 application, or MAX6315US30D1+TG05 equivalent, key selection criteria include its factory-trimmed 3.0V threshold, -40°C to +125°C operation, SOT143-4 package, 5µA quiescent current, and open-drain output capable of level-shifting above VCC up to +6V.
Technical Context
The MAX6315US30D1+TG05 implements a precision voltage-monitoring comparator with laser-trimmed resistive divider to set the 3.00V reset threshold, coupled with a monolithic timer circuit that guarantees ≥1ms reset assertion after VCC rises above threshold or MR deassertion. Its internal architecture eliminates external components while maintaining immunity to transients ≤1µs at 100mV overdrive.
It uses an open-drain n-channel MOSFET output stage enabling flexible pullup to any voltage between 0V and +6V - independent of VCC - supporting mixed-supply reset coordination. The MR input includes built-in glitch rejection (100ns) and requires no external debounce circuitry due to integrated filtering and internal pullup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.00V ±3.5% over -40°C to +125°C - ensures reliable detection of 3.0V rail collapse without false triggers. |
| Reset Timeout Period | ≥1ms minimum - guarantees sufficient processor initialization time after power stabilization. |
| Supply Current | 5µA typical at +25°C - enables ultra-low-power operation in battery-critical applications. |
| Operating Voltage Range | 2.5V to 5.5V - supports monitoring of 3.0V, 3.3V, and 5.0V rails with same device family. |
| RESET Output Type | Open-drain, rated to 6.0V - allows pullup to higher-voltage logic domains (e.g., 5V reset line driven from 3.0V VCC). |
| MR Input Threshold | VIL = 0.8V max, VIH = 0.7×VCC min - compatible with standard CMOS/TTL logic levels across full VCC range. |
| Temperature Range | -40°C to +125°C - qualified for automotive under-hood and industrial control environments. |
Pinout & Package
SOT143-4 (also referenced as U4+1 per Maxim package code), 1.3mm × 2.9mm surface-mount package with gull-wing leads, RoHS-compliant lead-free finish (+T suffix), tape-and-reel packaging only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for internal circuitry and RESET sink current; must be low-impedance connection to system ground plane. |
| 2 - RESET | Active-low open-drain output | Sinks current when asserted; requires external pullup resistor (e.g., 10kΩ) to target logic supply (≤6V); floats high otherwise. |
| 3 - MR | Manual reset input | Logic-low assertion forces RESET active; internally pulled up to VCC (63kΩ); tolerant of noise via 100ns glitch rejection. |
| 4 - VCC | Supply and monitor input | Powers device and provides monitored voltage source; internal laser-trimmed divider references this pin for 3.00V threshold detection. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.00V threshold | Eliminates external resistor network and calibration, reducing BOM count and layout area in space-constrained designs. |
| Guaranteed 1ms reset timeout | Ensures µP/µC completes power-up sequence before release, meeting JEDEC JESD84-B51 tRST timing requirements. |
| Open-drain RESET with 6V rating | Enables level-shifted reset signaling between disparate supply domains (e.g., 3.0V core monitoring 5.0V I/O rail). |
| Internal MR pullup (63kΩ) | Removes need for external pullup resistor, simplifying PCB layout and improving reliability in high-vibration environments. |
| 5µA supply current | Extends battery life in portable instrumentation and remote sensors where standby current dominates energy budget. |
Applications
| Industrial PLC Controllers | Battery-Powered Data Loggers |
|---|---|
|
Use Scenario: Programmable logic controllers operating in harsh factory environments with fluctuating 24VDC-derived 3.0V logic supplies. IC Role / Device Role / Timing Role: Monitors 3.0V domain derived from switching regulator; asserts RESET during brownouts caused by motor startup surges. Use Value: Prevents firmware corruption by holding µC in reset until 3.0V stabilizes post-surge, leveraging ±3.5% threshold tolerance over full industrial temperature range. |
Use Scenario: Remote environmental sensors powered by coin-cell batteries, sampling intermittently and sleeping >99% of the time. IC Role / Device Role / Timing Role: Supervises 3.0V LDO output powering MCU and ADC; initiates clean restart after battery voltage sag during wake-up burst. Use Value: 5µA quiescent current minimizes sleep-mode drain, while 1ms timeout ensures reliable boot without extending wake latency. |
| Automotive Body Control Modules | Medical Point-of-Care Devices |
|
Use Scenario: Under-dash modules exposed to -40°C cold cranking and +125°C under-hood thermal cycling. IC Role / Device Role / Timing Role: Resets 32-bit ARM-based controller upon ignition cycle; monitors 3.0V supply generated from vehicle battery via buck converter. Use Value: -40°C to +125°C qualification and 3.00V threshold stability ensure deterministic reset behavior across extreme automotive thermal profiles. |
Use Scenario: Portable diagnostic devices using rechargeable Li-ion batteries with regulated 3.0V system rail. IC Role / Device Role / Timing Role: Guarantees safe MCU initialization after battery insertion or charger disconnect events. Use Value: Debounced MR input accepts momentary switch presses without spurious resets, eliminating need for external RC filters in compact medical enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6315US30D2+TG05 | Same 3.00V threshold but 20ms minimum reset timeout vs. 1ms. | Suitable for systems requiring longer reset hold time (e.g., FPGAs with extended configuration clocks). | Select when longer reset assertion is needed; not drop-in for 1ms-critical timing. |
| TPS3808G30DBVR | Push-pull RESET output (not open-drain); 3.0V threshold; 200ms default timeout (adjustable). | Requires redesign of RESET pullup network; lacks level-shifting capability above VCC. | Choose for push-pull simplicity if level shift not required; verify compatibility with µP reset pin drive strength. |
Compared with MAX6315US30D1+TG05, the D2 variant offers extended reset duration for complex processors, while TPS3808G30DBVR trades open-drain flexibility for push-pull simplicity and adjustable timeout - both require layout or timing validation before substitution.
Availability
MAX6315US30D1+TG05 is available at Aetrix Electronics and suitable for industrial control systems, battery-powered instrumentation, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6315US30D1+TG05 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAX6315 family was designed specifically for cost-sensitive, space-constrained microprocessor supervisory applications demanding precision voltage monitoring, minimal external components, and robust operation across wide temperature ranges - targeting embedded controllers and portable electronics.
FAQ
What is the exact reset threshold voltage for MAX6315US30D1+TG05?
The MAX6315US30D1+TG05 has a factory-trimmed nominal reset threshold of 3.00V, with guaranteed tolerance of ±3.5% over the full operating temperature range (-40°C to +125°C). This value is laser-trimmed during manufacturing and does not require external calibration. The threshold is referenced directly to the VCC pin, and the device asserts RESET whenever VCC falls below this level.
Does MAX6315US30D1+TG05 support operation above 5V on its RESET pin?
Yes, the MAX6315US30D1+TG05 features an open-drain RESET output rated to 6.0V absolute maximum. This allows the RESET pin to be pulled up to a voltage higher than VCC - for example, to 5.0V while VCC is 3.0V - enabling level-shifted reset signaling between different supply domains. The output structure is an n-channel MOSFET capable of sinking up to 20mA.
What is the minimum reset timeout period specified for MAX6315US30D1+TG05?
The MAX6315US30D1+TG05 is configured with a minimum reset timeout period of 1ms. This is the guaranteed minimum duration for which the RESET signal remains asserted after VCC rises above the 3.00V threshold or after the MR input is deasserted. The actual timeout may vary slightly with temperature and process, but will never fall below 1ms across all conditions.
Can the MR pin of MAX6315US30D1+TG05 be left unconnected?
Yes, the MR pin of MAX6315US30D1+TG05 has an internal 63kΩ pullup resistor to VCC, so it can be left floating if manual reset functionality is not required. In that case, the device operates solely based on VCC monitoring. If used, MR should be driven low via a momentary switch to GND; no external pullup or debounce components are necessary due to built-in 100ns glitch rejection.
Is MAX6315US30D1+TG05 compatible with the MAX811 footprint?
Yes, the MAX6315US30D1+TG05 is explicitly stated as pin-compatible with the MAX811 in the datasheet. Both devices use the same SOT143-4 package and identical pinout (VCC, MR, RESET, GND), allowing direct replacement in existing designs without PCB modification - provided the 3.00V threshold and 1ms timeout meet the system's supervisory requirements.
MAX6315US30D1+TG05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143-4
MAX6315US30D1+TG05 FAQ
1.How can I place an order for MAX6315US30D1+TG05 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6315US30D1+TG05 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 MAX6315US30D1+TG05 reliable?
The price and inventory of MAX6315US30D1+TG05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6315US30D1+TG05 is usually 5 days.
3.What payment methods are accepted for MAX6315US30D1+TG05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6315US30D1+TG05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6315US30D1+TG05?
MAX6315US30D1+TG05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6315US30D1+TG05 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 MAX6315US30D1+TG05?
For technical support, including MAX6315US30D1+TG05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6315US30D1+TG05 requirements.
6.How does Aetrix verify that MAX6315US30D1+TG05 is sourced from the original manufacturer or authorized distributors?
All MAX6315US30D1+TG05 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 MAX6315US30D1+TG05 meets industry standards.
7.What is the process for return or replacement of MAX6315US30D1+TG05?
All MAX6315US30D1+TG05 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6315US30D1+TG05, 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 MAX6315US30D1+TG05 part is unused and in its original packaging.
Return procedure for MAX6315US30D1+TG05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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