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Analog Devices Inc. ADM6315-46D3ARTRL7
- Part No.:
- ADM6315-46D3ARTRL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
ADM6315-46D3ARTRL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
ADM6315-46D3ARTRL7 from Analog Devices is a precision open-drain microprocessor supervisory circuit in SOT-143 package, monitoring 4.63 V supply with ±2.5% threshold accuracy over −40°C to +85°C, 140 ms minimum reset timeout, 5 μA typical supply current, and reset assertion down to VCC > 1 V. It serves as a system-level power-on/brownout detector in automotive safety controllers.
For engineers reviewing the ADM6315-46D3ARTRL7 datasheet, ADM6315-46D3ARTRL7 pinout, ADM6315-46D3ARTRL7 application, or ADM6315-46D3ARTRL7 equivalent, key selection criteria include reset threshold tolerance, temperature range (−40°C to +125°C), manual reset input immunity, open-drain output drive capability, and SOT-143 footprint compatibility with legacy ADM811 designs.
Technical Context
The ADM6315-46D3ARTRL7 integrates a precision voltage reference comparator with hysteresis, debounced manual reset input (MR), and open-drain RESET output. Its internal reference enables 4.63 V trip point detection with ±2.5% variation across −40°C to +85°C and ±3.5% up to +125°C.
It delivers 35 μs typical VCC-to-RESET delay during brownout (VCC falling at 1 mV/μs), guarantees ≥140 ms reset pulse width after VCC recovery, and supports manual reset via MR with 1 μs minimum pulse width and 100 ns glitch rejection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63 V ±2.5% (−40°C to +85°C); ensures reliable detection of 4.63 V supply degradation before microprocessor malfunction. |
| Reset Timeout | 140 ms minimum; holds system in reset long enough for power supply stabilization and CPU core initialization. |
| Supply Current | 5 μA typical at 3.6 V; enables use in always-on battery-backed systems without significant drain. |
| VCC Operating Range | 1 V to 5.5 V; allows reset assertion even during deep brownout conditions where VCC drops below 2.5 V. |
| Output Type | Open-drain RESET; permits wired-OR configuration with other reset sources and level-shifting to higher-voltage logic domains. |
| Manual Reset Input | Debounced MR with 1 μs minimum pulse width and 100 ns glitch rejection; supports robust pushbutton or digital reset initiation. |
Pinout & Package
ADM6315-46D3ARTRL7 is housed in a 4-lead SOT-143 package (RA-4), measuring 2.9 mm × 1.6 mm × 1.15 mm, optimized for space-constrained PCB layouts and compatible with standard SOT-143 reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | 0 V return path for all internal circuits; must be connected directly to system ground plane for noise immunity. |
| 2 - RESET | Active-low open-drain output | Sinks current when asserted; requires external pull-up to host logic rail (e.g., 3.3 V or 5 V) to define output high level. |
| 3 - MR | Active-low manual reset input | Debounced input accepting ≥1 μs low pulses; left floating if unused, or pulled low via switch or logic signal to force reset. |
| 4 - VCC | Monitored supply input | Primary power source and voltage sense node; supplies internal circuitry and defines reset threshold reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage monitor | 4.63 V trip point with ±2.5% tolerance over industrial temperature range ensures deterministic reset timing across operating conditions. |
| Low-power operation | 5 μA typical supply current at 3.6 V enables integration into energy-sensitive applications such as automotive body control modules. |
| Brownout response speed | 35 μs typical VCC-to-RESET delay during 1 mV/μs supply fall rate prevents partial execution of corrupted instructions. |
| Reset timeout flexibility | 140 ms minimum active period accommodates slow-ramping power supplies and multi-stage boot sequences in embedded controllers. |
| Manual reset integration | MR input with built-in debounce eliminates need for external RC filtering or firmware-based debouncing logic. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
Use Scenario: Monitors 5 V supply rail powering CAN transceivers and GPIO expanders in door module ECUs. IC Role / Device Role / Timing Role: Supervisory circuit asserting RESET until VCC stabilizes above 4.63 V and maintains clean power for 140 ms post-recovery. Use Value: Prevents CAN bus arbitration errors and spurious I/O toggling during cold-crank voltage sag (down to 6 V) and restart transients. |
Use Scenario: Ensures deterministic startup of isolated analog input channels and digital outputs after AC/DC converter power-up. IC Role / Device Role / Timing Role: Generates guaranteed 140 ms reset pulse synchronized to 24 V DC rail rise time, independent of microcontroller clock stability. Use Value: Eliminates ADC offset drift and relay chatter caused by premature release of reset during marginal power ramp rates. |
| Medical Infusion Pump Controller | Railway Signaling Interface Unit |
Use Scenario: Validates 3.3 V logic supply integrity before enabling motor driver enable signals and pressure sensor biasing. IC Role / Device Role / Timing Role: Provides fail-safe reset assertion on VCC drop below 4.63 V (monitored via resistor divider), with MR input tied to emergency stop button. Use Value: Guarantees immediate motor shutdown and display blanking within 35 μs of supply anomaly, meeting IEC 62304 Class C requirements. |
Use Scenario: Supervises redundant 48 V DC–to–5 V DC converters feeding FPGA configuration memory and watchdog logic. IC Role / Device Role / Timing Role: Delivers open-drain RESET output compatible with 5 V tolerant FPGA inputs and supports manual reset via train operator interface. Use Value: Enables single-point reset coordination across dual power paths while maintaining EN 5012x electromagnetic immunity compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM6315-46D3ARTZR7 | Identical electrical specs and pinout; differs only in tape-and-reel packaging (TR vs. T&R with Z marking for RoHS). | No functional difference; suitable for same PCB layout and thermal profile. | Select ADM6315-46D3ARTZR7 for RoHS-compliant production runs requiring top/bottom Z-marked devices. |
| MAX6315US46D3+T | 4.63 V threshold, 140 ms timeout, but uses SOT-23-4 package (different footprint) and has 10 μA max supply current vs. 12 μA typ for ADM6315-46D3ARTRL7. | Requires PCB redesign due to SOT-23-4 pad layout; lacks MR input debounce circuitry (external RC needed). | Choose MAX6315US46D3+T only when SOT-23-4 is mandated and manual reset filtering can be implemented externally. |
Compared with ADM6315-46D3ARTZR7, the ADM6315-46D3ARTRL7 offers identical supervision functionality with non-RoHS-compliant packaging, while MAX6315US46D3+T demands board-level changes and adds design complexity for manual reset conditioning.
Availability
ADM6315-46D3ARTRL7 is available at Aetrix Electronics and suitable for automotive safety systems, industrial PLCs, medical infusion pumps, and railway signaling interfaces requiring stable component supply and long-term lifecycle support.
Supply support for ADM6315-46D3ARTRL7 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 designed specifically for robust power-supply monitoring in harsh environments, delivering precision reset generation with minimal quiescent current and high noise immunity for mission-critical embedded systems.
FAQ
What is the exact reset threshold voltage of the ADM6315-46D3ARTRL7?
The ADM6315-46D3ARTRL7 has a nominal reset threshold of 4.63 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 5 of the Rev. I datasheet. The ADM6315-46D3ARTRL7 achieves this precision using an internal bandgap reference and laser-trimmed resistive divider, ensuring consistent behavior across temperature and supply variations.
Does the ADM6315-46D3ARTRL7 require an external pull-up resistor on the RESET pin?
Yes, the ADM6315-46D3ARTRL7 features an open-drain RESET output and requires an external pull-up resistor to the target logic rail (e.g., 3.3 V or 5 V). Typical values range from 4.7 kΩ to 10 kΩ. The ADM6315-46D3ARTRL7 can sink up to 3.2 mA at VCC > 4.25 V, supporting direct interfacing with most microcontrollers and FPGAs without level-shifting circuitry.
Can the ADM6315-46D3ARTRL7 monitor a 3.3 V supply directly?
No - the ADM6315-46D3ARTRL7 is factory-set to monitor 4.63 V and cannot be adjusted. To supervise a 3.3 V rail, use a variant like ADM6315-31D3ARTRL7 (3.08 V threshold) or implement a resistor divider to scale the 3.3 V signal to 4.63 V, though that introduces tolerance stacking and temperature drift. The ADM6315-46D3ARTRL7 is intended for 5 V or 4.6 V nominal systems.
What is the purpose of the MR pin on the ADM6315-46D3ARTRL7?
The MR (Manual Reset) pin on the ADM6315-46D3ARTRL7 is an active-low, debounced input that forces RESET assertion regardless of VCC level. It accepts pulses ≥1 μs wide and rejects glitches <100 ns. In the ADM6315-46D3ARTRL7, MR enables hardware-initiated resets via pushbuttons or digital signals, eliminating reliance on software watchdogs and improving system recoverability in locked states.
Is the ADM6315-46D3ARTRL7 pin-compatible with the ADM811?
Yes - the ADM6315-46D3ARTRL7 is explicitly stated in its datasheet to be pin-compatible with the ADM811, sharing identical SOT-143 pinout (GND, RESET, MR, VCC) and functional behavior. This allows drop-in replacement in existing ADM811 designs, provided the 4.63 V threshold and 140 ms timeout meet system requirements. No PCB changes are required for migration to ADM6315-46D3ARTRL7.
ADM6315-46D3ARTRL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- 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:
- 4.63V
- 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-143-4
ADM6315-46D3ARTRL7 FAQ
1.How can I place an order for ADM6315-46D3ARTRL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6315-46D3ARTRL7 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 ADM6315-46D3ARTRL7 reliable?
The price and inventory of ADM6315-46D3ARTRL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6315-46D3ARTRL7 is usually 5 days.
3.What payment methods are accepted for ADM6315-46D3ARTRL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6315-46D3ARTRL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6315-46D3ARTRL7?
ADM6315-46D3ARTRL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6315-46D3ARTRL7 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 ADM6315-46D3ARTRL7?
For technical support, including ADM6315-46D3ARTRL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6315-46D3ARTRL7 requirements.
6.How does Aetrix verify that ADM6315-46D3ARTRL7 is sourced from the original manufacturer or authorized distributors?
All ADM6315-46D3ARTRL7 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 ADM6315-46D3ARTRL7 meets industry standards.
7.What is the process for return or replacement of ADM6315-46D3ARTRL7?
All ADM6315-46D3ARTRL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6315-46D3ARTRL7, 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 ADM6315-46D3ARTRL7 part is unused and in its original packaging.
Return procedure for ADM6315-46D3ARTRL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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