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Analog Devices Inc. ADM6315-26D2ARTZR7
- Part No.:
- ADM6315-26D2ARTZR7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
ADM6315-26D2ARTZR7.pdf
- Description:
- IC SUPERVISOR OD 2.63V SOT143
- Quantity:
- Payment:
- Shipping:
Inventory:2,559
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Product details
Overview
ADM6315-26D2ARTZR7 from Analog Devices is a precision open-drain microprocessor supervisory circuit designed to monitor 2.63 V supply rails with ±2.5% threshold accuracy over −40°C to +85°C, assert reset for ≥20 ms after power-up or brownout, and support manual reset via debounced MR input - used in automotive safety systems and industrial controllers requiring reliable power-on reset.
For engineers reviewing the ADM6315-26D2ARTZR7 datasheet, ADM6315-26D2ARTZR7 pinout, ADM6315-26D2ARTZR7 application, or ADM6315-26D2ARTZR7 equivalent, key selection criteria include reset timeout (20 ms min), supply current (5 μA typical at 3.6 V), operating voltage range (1 V to 5.5 V), and SOT-143 package compatibility with space-constrained embedded designs.
Technical Context
The ADM6315-26D2ARTZR7 implements a precision bandgap-based voltage reference with 60 ppm/°C temperature coefficient and monitors VCC down to 1 V while asserting active-low RESET. Its internal comparator detects 2.63 V ±2.5% threshold degradation with 35 μs response time during falling VCC at 1 mV/μs.
It integrates a debounced manual reset input (MR) rejecting <100 ns glitches and accepting ≥1 μs pulses, plus an open-drain RESET output capable of sinking 3.2 mA at VCC > 4.25 V. The device operates across −40°C to +125°C and supports system-level brownout recovery without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63 V ±2.5% over −40°C to +85°C - ensures stable reset assertion for 2.63 V logic supplies despite temperature drift |
| Reset Timeout | 20 ms minimum - guarantees sufficient hold time for microprocessor initialization after power stabilization |
| Supply Current | 5 μA typical at 3.6 V - enables ultra-low-power operation in battery-backed or energy-sensitive systems |
| VCC Operating Range | 1 V to 5.5 V - supports reset assertion even during deep brownout conditions below nominal supply |
| MR Input Glitch Rejection | 100 ns - prevents spurious resets from EMI or switch bounce in noisy automotive environments |
| RESET Output Type | Open-drain - allows wired-OR configuration and level-shifting with higher-voltage hosts |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive and industrial control applications |
Pinout & Package
ADM6315-26D2ARTZR7 is housed in a 4-lead SOT-143 package (RA-4), measuring 2.9 mm × 1.6 mm × 1.15 mm, with gull-wing leads optimized for automated assembly and thermal performance (θJA = 330°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | 0 V return path for all internal circuits; must be connected to system ground plane for accurate threshold sensing |
| 2 (RESET) | Active-low open-drain output | Drives low during reset condition; requires external pull-up to host VDD; sinks up to 3.2 mA |
| 3 (MR) | Debounced manual reset input | Active-low; ignores transients <100 ns; accepts ≥1 μs pulses; floats when unused |
| 4 (VCC) | Monitored supply input | Primary voltage source and measurement point; powers internal circuitry and defines reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.63 V threshold | ±2.5% tolerance over −40°C to +85°C enables reliable reset for 2.6 V–2.7 V rail monitoring without calibration |
| 20 ms minimum reset timeout | Guarantees full microcontroller core and peripheral initialization before release from reset state |
| 1 V minimum VCC operation | Asserts reset even during severe brownout, preventing undefined CPU states below functional voltage |
| Open-drain RESET output | Supports multi-source reset arbitration and interface to 5 V or 3.3 V hosts without level translators |
| MR input with 100 ns glitch rejection | Eliminates false triggers from mechanical switches or digital noise in safety-critical reset paths |
Applications
| Automotive Safety ECUs | Industrial PLC Controllers |
|---|---|
|
Use Scenario: Monitoring 2.63 V power rail in airbag control units where undervoltage must trigger immediate system reset before deployment logic executes. IC Role / Device Role / Timing Role: Voltage supervisor providing fail-safe reset initiation and brownout detection with 35 μs response latency. Use Value: Prevents erroneous airbag deployment by ensuring MCU remains held in reset until supply stabilizes above 2.63 V ±2.5%. |
Use Scenario: Supervising auxiliary 2.63 V supply in programmable logic controller I/O modules exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Precision reset generator with −40°C to +125°C qualification and 20 ms timeout for deterministic boot sequencing. Use Value: Eliminates field failures caused by marginal power-up timing margins in distributed control networks. |
| Medical Infusion Pumps | Railway Signaling Interfaces |
|
Use Scenario: Ensuring safe startup of microcontroller-based dose calculation engine powered from isolated 2.63 V DC-DC converter. IC Role / Device Role / Timing Role: Low-power (5 μA) supervisory IC asserting reset during battery voltage sag or cold-start conditions. Use Value: Maintains regulatory compliance for Class II medical devices by guaranteeing controlled power-on behavior under low-energy conditions. |
Use Scenario: Reset coordination between track-side signaling processor and legacy 2.63 V interface circuitry in EN 5012x-compliant systems. IC Role / Device Role / Timing Role: Pin-compatible replacement for legacy supervisors with guaranteed 20 ms reset hold time and ESD-hardened MR input. Use Value: Enables drop-in upgrade of aging infrastructure without PCB redesign or firmware changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM811SARTZ-REEL7 | Same SOT-143 package, 2.63 V threshold, but fixed 140 ms reset timeout and no MR input | Lacks manual reset capability; unsuitable for user-initiated recovery or debug scenarios | Select only if system requires longer reset hold time and MR functionality is unnecessary |
| MAX6326UT26D3+T | 2.63 V threshold, 20 ms timeout, but uses SC70-4 package and has push-pull RESET output | Push-pull output eliminates need for external pull-up but prevents wired-OR reset bus sharing | Choose when board layout constraints favor SC70 or when single-source reset drive is preferred over shared-bus topology |
Compared with ADM811SARTZ-REEL7 and MAX6326UT26D3+T, the ADM6315-26D2ARTZR7 uniquely combines 20 ms timeout, debounced MR input, open-drain RESET, and −40°C to +125°C operation in SOT-143 - making it optimal for automotive and industrial systems requiring both reliability and flexibility in reset management.
Availability
ADM6315-26D2ARTZR7 is available at Aetrix Electronics and suitable for automotive safety ECUs, industrial PLC controllers, and medical infusion pumps requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADM6315-26D2ARTZR7 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADM6315 family was engineered specifically for robust power-supply monitoring in mission-critical embedded systems, emphasizing precision threshold accuracy, ultra-low quiescent current, and extended temperature resilience.
FAQ
What is the exact reset threshold voltage of the ADM6315-26D2ARTZR7?
The ADM6315-26D2ARTZR7 has a nominal reset threshold of 2.63 V, with tolerance of ±2.5% over −40°C to +85°C and ±3.5% over −40°C to +125°C. This value is factory-trimmed and specified in Table 1 of the Rev. I datasheet. The ADM6315-26D2ARTZR7 achieves this precision using an internal bandgap reference with 60 ppm/°C temperature coefficient.
Does the ADM6315-26D2ARTZR7 support manual reset, and how is it implemented?
Yes, the ADM6315-26D2ARTZR7 includes a dedicated MR (Manual Reset) pin (Pin 3) that is active-low and debounced. It rejects glitches shorter than 100 ns and reliably responds to input pulses ≥1 μs. When pulled low, MR forces RESET to assert regardless of VCC level. The ADM6315-26D2ARTZR7 also features internal pull-up resistance (32 kΩ to 100 kΩ) on MR, allowing it to float safely when unused.
What is the minimum VCC voltage at which the ADM6315-26D2ARTZR7 can still assert reset?
The ADM6315-26D2ARTZR7 asserts reset down to VCC > 1 V, as confirmed in the General Description and Absolute Maximum Ratings sections of the datasheet. This capability ensures fail-safe operation during deep brownout events. The ADM6315-26D2ARTZR7 maintains functional reset assertion even when supply voltage drops below typical logic thresholds, preventing undefined microprocessor states.
Is the ADM6315-26D2ARTZR7 pin-compatible with other members of the ADM6315 family?
Yes, all ADM6315 variants-including ADM6315-26D2ARTZR7-share identical 4-lead SOT-143 (RA-4) pinout: GND (Pin 1), RESET (Pin 2), MR (Pin 3), VCC (Pin 4). This uniformity allows direct substitution within the same timeout and threshold option group, provided system timing and voltage requirements align. The ADM6315-26D2ARTZR7 is also explicitly noted as pin-compatible with the ADM811.
What is the maximum sink current capability of the ADM6315-26D2ARTZR7 RESET output?
The ADM6315-26D2ARTZR7 RESET output is an open-drain driver rated to sink up to 3.2 mA when VCC > 4.25 V, 1.2 mA when VCC > 2.5 V, and 80 μA when VCC > 1 V. These values are measured at specified output voltage limits (e.g., 0.4 V max at 3.2 mA) and ensure compatibility with standard CMOS and TTL input thresholds. The ADM6315-26D2ARTZR7 does not source current from RESET.
ADM6315-26D2ARTZR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- 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:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143-4
ADM6315-26D2ARTZR7 FAQ
1.How can I place an order for ADM6315-26D2ARTZR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6315-26D2ARTZR7 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 ADM6315-26D2ARTZR7 reliable?
The price and inventory of ADM6315-26D2ARTZR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6315-26D2ARTZR7 is usually 5 days.
3.What payment methods are accepted for ADM6315-26D2ARTZR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6315-26D2ARTZR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6315-26D2ARTZR7?
ADM6315-26D2ARTZR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6315-26D2ARTZR7 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 ADM6315-26D2ARTZR7?
For technical support, including ADM6315-26D2ARTZR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6315-26D2ARTZR7 requirements.
6.How does Aetrix verify that ADM6315-26D2ARTZR7 is sourced from the original manufacturer or authorized distributors?
All ADM6315-26D2ARTZR7 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 ADM6315-26D2ARTZR7 meets industry standards.
7.What is the process for return or replacement of ADM6315-26D2ARTZR7?
All ADM6315-26D2ARTZR7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6315-26D2ARTZR7, 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 ADM6315-26D2ARTZR7 part is unused and in its original packaging.
Return procedure for ADM6315-26D2ARTZR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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