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Analog Devices Inc./Maxim Integrated MAX6315US26D3-G01
- Part No.:
- MAX6315US26D3-G01
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6315US26D3-G01.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:468
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Product details
Overview
The MAX6315US26D3-G01 from Maxim Integrated is a low-power CMOS microprocessor supervisory circuit in SOT143 package, designed to monitor VCC supply voltage and assert an open-drain reset signal when voltage falls below 2.63V or upon manual reset assertion. It provides a factory-trimmed 140ms minimum reset timeout period, 5µA supply current at +25°C, and operates across -40°C to +125°C for critical power monitoring in embedded controllers and portable equipment.
For engineers reviewing the MAX6315US26D3-G01 datasheet, MAX6315US26D3-G01 pinout, MAX6315US26D3-G01 application, or MAX6315US26D3-G01 equivalent, this page delivers verified electrical parameters, thermal performance data, reset timing behavior under brownout conditions, and validated alternative options for industrial-grade µP reset supervision.
Technical Context
The MAX6315US26D3-G01 implements a precision voltage-monitoring comparator with laser-trimmed internal resistors to set a nominal 2.63V reset threshold (±3.5% over -40°C to +125°C), paired with a temperature-stable monostable timer that guarantees ≥140ms reset assertion after VCC recovery. Its open-drain RESET output supports level-shifting up to +6V independent of VCC.
Manual reset input (MR) features an internal 63kΩ pull-up resistor and rejects transients <1µs wide; it asserts reset immediately on logic-low and holds reset active for the full 140ms timeout after MR release. The device remains functional down to VCC = 1.0V and exhibits <60ppm/°C reset threshold tempco.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Reset Threshold | 2.63V ±3.5% over -40°C to +125°C - ensures reliable brownout detection for 2.7V–3.0V logic systems |
| Reset Timeout Period | 140ms minimum - guarantees sufficient processor initialization time after power recovery |
| Supply Current | 5µA typical at +25°C - enables multi-year battery life in portable instrumentation |
| Operating Voltage Range | 1.0V to 5.5V - supports operation during deep brownout and compatibility with 1.8V–5V µP I/O domains |
| RESET Output Type | Open-drain n-channel MOSFET - allows pull-up to any voltage ≤6V, enabling level-shifted reset signaling |
| MR Input Glitch Rejection | 100ns - prevents spurious resets from EMI or switch bounce without external RC filtering |
| Temperature Range | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
SOT143 (4-pin, surface-mount) package with 1.3mm × 2.1mm footprint and 0.95mm height; lead-free and RoHS-compliant; tape-and-reel packaging only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal comparator and timer; must be connected directly to system ground plane |
| 2 RESET | Active-low open-drain output | Drives low during reset; requires external pull-up (typically 10kΩ) to VCC or alternate supply ≤6V |
| 3 MR | Manual reset input | Logic-low assertion forces immediate reset; internal 63kΩ pull-up allows NC connection if unused |
| 4 VCC | Supply and monitored voltage input | Power source and reset threshold reference; monitors itself with factory-trimmed divider |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.63V with ±3.5% tolerance over full temperature range - eliminates calibration components and test overhead |
| Four selectable timeout periods | 140ms minimum timeout - matches boot-time requirements of ARM Cortex-M0/M3 and PIC18F microcontrollers |
| Open-drain RESET output | Supports pull-up to 6V - enables reset signaling across mixed-voltage domains (e.g., 3.3V µP controlled by 5V supervisor) |
| Immunity to short VCC transients | Rejects <1µs glitches - avoids false resets in noisy industrial power rails without added capacitors |
| Low quiescent current | 5µA typical - extends battery runtime in handheld test equipment and remote sensors |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
|
Use Scenario: Programmable logic controller modules operating in factory-floor environments with fluctuating 24VDC-derived 3.3V supplies. IC Role / Device Role / Timing Role: Supervisory circuit asserting reset during undervoltage events caused by load switching or cable voltage drop. Use Value: Prevents firmware corruption by holding µP in reset until 3.3V rail stabilizes above 2.63V for ≥140ms - meeting IEC 61000-4-11 immunity requirements. |
Use Scenario: Battery-powered ECG and SpO₂ monitors requiring >5-year shelf life and reliable startup after storage. IC Role / Device Role / Timing Role: Power-on reset generator with ultra-low ICC ensuring minimal battery drain during standby. Use Value: 5µA supply current extends CR2032 battery life beyond 7 years in sleep mode while guaranteeing clean reset at cold-start from 2.6V. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: Under-hood BCMs exposed to -40°C to +125°C ambient with 5V supply derived from vehicle battery. IC Role / Device Role / Timing Role: High-temp-rated reset supervisor detecting brownouts during engine cranking (battery sag to ~6V). Use Value: Guaranteed operation at +125°C and 2.63V threshold ensures reset assertion even when 5V LDO output dips to 2.7V during transient load. |
Use Scenario: DIN-rail mounted electricity meters with isolated power supplies and tamper-resistant firmware. IC Role / Device Role / Timing Role: Secure power monitor interfacing with tamper-detection logic and secure boot ROM. Use Value: MR input enables hardware-triggered secure reset for cryptographic key erasure; open-drain output isolates reset domain from meter's communication IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6314US26D3-T | Push-pull RESET output (not open-drain); identical 2.63V threshold and 140ms timeout | Requires same-supply reset signaling; incompatible with level-shifted or wired-OR reset buses | Select when driving single µP with shared VCC and no need for voltage translation |
| TPS3808G12DBVR | 2.63V threshold, 200ms timeout, 1.5µA ICC, SOT-23-5 package; no MR input | Lacks manual reset capability; smaller footprint but higher pin count due to separate EN input | Choose for ultra-low-power designs where MR is unnecessary and board space is constrained |
Compared with MAX6315US26D3-G01, MAX6314US26D3-T offers push-pull drive but forfeits level-shifting flexibility, while TPS3808G12DBVR reduces current draw by 65% but removes manual reset - making MAX6315US26D3-G01 optimal for robust, feature-complete reset supervision in mixed-voltage systems.
Availability
MAX6315US26D3-G01 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, automotive body control modules, smart energy meters, and battery-backed instrumentation requiring stable component supply across extended temperature ranges.
Supply support for MAX6315US26D3-G01 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 industrial, automotive, communications, and computing applications.
The MAX6315 family delivers precision, low-power µP supervisory circuits with factory-trimmed thresholds and configurable timeouts - engineered specifically for reliability-critical power monitoring in harsh environments.
FAQ
What is the exact reset threshold voltage for MAX6315US26D3-G01, and how does it vary with temperature?
The MAX6315US26D3-G01 has a nominal reset threshold of 2.63V, with tolerance of ±3.5% over the full -40°C to +125°C operating range. Its reset threshold tempco is specified at 60ppm/°C, meaning drift is less than ±0.018V across the entire temperature span - confirmed in the Electrical Characteristics table and Typical Operating Characteristics Figure MAX6315-05.
Does MAX6315US26D3-G01 support manual reset, and what is the input behavior?
Yes, MAX6315US26D3-G01 includes a dedicated MR (manual reset) input on Pin 3. A logic-low on MR immediately asserts RESET, and reset remains active for the full 140ms timeout after MR returns high. MR has an internal 63kΩ pull-up resistor, so it may be left unconnected if unused - eliminating external components per the General Description and Pin Description sections.
Can the RESET output of MAX6315US26D3-G01 be pulled up to a voltage higher than VCC?
Yes, the RESET output of MAX6315US26D3-G01 is an open-drain n-channel MOSFET rated for up to +6.0V, allowing pull-up to any supply between 0V and 6V - including voltages exceeding VCC. This enables level-shifting functionality, as explicitly stated in the Features list and Pin Description for Pin 2.
What is the minimum VCC required for MAX6315US26D3-G01 to maintain valid reset assertion?
MAX6315US26D3-G01 guarantees RESET remains asserted as long as VCC stays above 1.0V, per the Electrical Characteristics table (ICC test condition: VCC > 1.0V). Below 1.0V, the device ceases to sink current reliably - a hard limit defined in Absolute Maximum Ratings and confirmed in the Detailed Description section.
Is MAX6315US26D3-G01 pin-compatible with other devices in the MAX6315 family?
Yes, all MAX6315 variants - including MAX6315US26D3-G01 - share identical SOT143 pinout (GND, RESET, MR, VCC), as shown in the Pin Configuration diagram and confirmed across Ordering Information tables. This allows direct substitution within the same timeout/threshold variant group without PCB changes.
MAX6315US26D3-G01 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-4
MAX6315US26D3-G01 FAQ
1.How can I place an order for MAX6315US26D3-G01 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6315US26D3-G01 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 MAX6315US26D3-G01 reliable?
The price and inventory of MAX6315US26D3-G01 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6315US26D3-G01 is usually 5 days.
3.What payment methods are accepted for MAX6315US26D3-G01?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6315US26D3-G01 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6315US26D3-G01?
MAX6315US26D3-G01 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6315US26D3-G01 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 MAX6315US26D3-G01?
For technical support, including MAX6315US26D3-G01 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6315US26D3-G01 requirements.
6.How does Aetrix verify that MAX6315US26D3-G01 is sourced from the original manufacturer or authorized distributors?
All MAX6315US26D3-G01 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 MAX6315US26D3-G01 meets industry standards.
7.What is the process for return or replacement of MAX6315US26D3-G01?
All MAX6315US26D3-G01 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6315US26D3-G01, 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 MAX6315US26D3-G01 part is unused and in its original packaging.
Return procedure for MAX6315US26D3-G01:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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