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Analog Devices Inc. ADM6315-26D1ARTRL7
- Part No.:
- ADM6315-26D1ARTRL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
ADM6315-26D1ARTRL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:17,700
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Product details
Overview
ADM6315-26D1ARTRL7 from Analog Devices is a precision open-drain microprocessor supervisory circuit in 4-lead SOT-143 package, monitoring VCC at 2.63 V threshold with ±2.5% accuracy over −40°C to +85°C, 1 ms minimum reset timeout, and 5 μA typical supply current. It asserts active-low RESET during power-up, brownout (35 μs response), or manual reset via debounced MR input, used in automotive safety systems and portable instrumentation.
For engineers reviewing the ADM6315-26D1ARTRL7 datasheet, ADM6315-26D1ARTRL7 pinout, ADM6315-26D1ARTRL7 application, or ADM6315-26D1ARTRL7 equivalent, key selection criteria include reset threshold tolerance, temperature range (−40°C to +125°C), SOT-143 footprint compatibility, manual reset pulse immunity (≥1 μs), and open-drain output drive capability (3.2 mA sink at VCC > 4.25 V).
Technical Context
The ADM6315-26D1ARTRL7 integrates a precision voltage reference and comparator to detect VCC drops below 2.63 V with 2.5% max deviation across −40°C to +85°C. Its internal reset timer guarantees ≥1 ms assertion after VCC recovery or MR release, synchronized to power-up stabilization.
It features a debounced manual reset input (MR) rejecting <100 ns glitches and accepting ≥1 μs pulses, plus an open-drain RESET output compatible with mixed-voltage systems-capable of sinking up to 3.2 mA while referenced to its own VCC or higher external rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63 V ±2.5% over −40°C to +85°C - ensures reliable detection of 1.8% supply degradation before microprocessor malfunction. |
| Reset Timeout | 1 ms minimum - provides sufficient hold time for power supply stabilization and processor core initialization. |
| Supply Current | 5 μA typical at 5.5 V - enables ultra-low-power operation in battery-backed or energy-constrained systems. |
| VCC Operating Range | 1 V to 5.5 V - supports reset assertion even during deep brownout conditions down to 1 V. |
| MR Input Pulse Width | ≥1 μs guaranteed acceptance - allows robust manual reset using mechanical switches or digital logic without external debouncing. |
| RESET Output Sink | 3.2 mA at VCC > 4.25 V - drives standard CMOS/TTL inputs directly without pull-up resistor redesign. |
Pinout & Package
ADM6315-26D1ARTRL7 is housed in a JEDEC-compliant 4-lead SOT-143 (RA-4) package, measuring 2.90 mm × 1.40 mm × 1.07 mm, with 0.95 mm lead pitch and gull-wing leads for surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Common return path for all internal circuits; must be connected to system ground plane for accurate threshold sensing. |
| RESET (Pin 2) | Open-drain reset output | Active-low signal asserted when VCC < 2.63 V or MR low; requires external pull-up to host rail (e.g., 3.3 V or 5 V). |
| MR (Pin 3) | Debounced manual reset input | Active-low input; ignores transients <100 ns; accepts ≥1 μs pulses; floats high when unused. |
| VCC (Pin 4) | Monitored supply voltage | Primary power input and voltage sense node; powers internal circuitry and defines reset threshold reference. |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage monitoring | 2.63 V threshold with ±2.5% tolerance over industrial temperature range - eliminates need for external trimming in cost-sensitive designs. |
| Ultra-low quiescent current | 5 μA typical - extends battery life in portable instruments and automotive body-control modules. |
| Brownout response speed | 35 μs typical delay from VCC falling edge to RESET assertion - prevents partial execution during rapid supply collapse. |
| Glitch-immune manual reset | 100 ns input pulse rejection - suppresses EMI-induced false resets in noisy automotive or industrial environments. |
| Open-drain output flexibility | Sinks up to 3.2 mA while referenced to VCC or higher rail - simplifies interface to mixed-voltage microcontrollers and FPGAs. |
Applications
| Automotive Safety Systems | Portable Instrumentation |
|---|---|
Use Scenario: Monitoring 3.3 V supply in airbag control unit during vehicle cranking, where battery voltage dips to 6–9 V causing MCU rail sag. IC Role / Device Role / Timing Role: Supervisory circuit asserting RESET within 35 μs of VCC drop below 2.63 V, holding for ≥1 ms post-recovery to prevent erratic MCU behavior. Use Value: Ensures deterministic system reset during cold-crank events, meeting ISO 16750-2 transient immunity requirements. | Use Scenario: Power sequencing in handheld multimeter with dual-supply analog front-end and 32-bit ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: Voltage monitor on main 3.3 V rail; triggers RESET if battery voltage falls below 2.63 V during discharge, blocking firmware execution until stable power returns. Use Value: Prevents data corruption in flash memory and ADC registers during low-battery operation, extending usable runtime. |
| Industrial Controllers | Intelligent Sensors |
Use Scenario: Reset coordination in PLC I/O module with isolated 5 V DC-DC converter powering FPGA and analog signal chain. IC Role / Device Role / Timing Role: Monitors isolated 5 V rail; asserts open-drain RESET to FPGA and microcontroller simultaneously upon undervoltage, ensuring synchronized recovery. Use Value: Eliminates race conditions between FPGA configuration and MCU boot sequence, reducing field failure rates. | Use Scenario: Self-test and fault recovery in MEMS-based inertial measurement unit (IMU) operating from single-cell Li-ion battery (2.8–4.2 V). IC Role / Device Role / Timing Role: Detects battery sag below 2.63 V during high-current sensor burst mode; holds RESET until voltage recovers and stabilizes for ≥1 ms. Use Value: Avoids erroneous angular rate/acceleration outputs during transient low-voltage events, preserving sensor calibration integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6315US26D1+T | Same 2.63 V threshold, 1 ms timeout, SOT-143 package; ±2.0% threshold accuracy over −40°C to +85°C vs. ±2.5% for ADM6315-26D1ARTRL7. | Higher accuracy suits tighter-margin 2.8 V rail monitoring; identical MR debounce and open-drain drive specs. | Select for improved threshold stability where supply margin is <50 mV. |
| TPS3808G12DBVR | 2.63 V threshold, 20 ms min timeout (not 1 ms); SOT-23-5 package; 1.6 μA typical supply current vs. 5 μA. | Larger timeout limits use in fast-recovery systems; smaller footprint but requires PCB redesign; lower IQ benefits battery life. | Choose when longer reset hold time is acceptable and board space is constrained. |
Compared with MAX6315US26D1+T, ADM6315-26D1ARTRL7 offers broader automotive qualification (−40°C to +125°C) and higher glitch immunity (100 ns vs. 50 ns rejection), while TPS3808G12DBVR trades shorter timeout for lower power and smaller size-requiring layout change and timing revalidation.
Availability
ADM6315-26D1ARTRL7 is available at Aetrix Electronics and suitable for automotive safety systems, portable instrumentation, industrial controllers, and intelligent sensors requiring stable component supply across extended temperature ranges.
Supply support for ADM6315-26D1ARTRL7 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, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The ADM6315 product line delivers cost-effective, temperature-stable supervisory circuits for microprocessor reset management in automotive, industrial, and portable applications-designed to ensure deterministic system startup and brownout recovery.
FAQ
What is the exact reset threshold voltage and tolerance for ADM6315-26D1ARTRL7?
The ADM6315-26D1ARTRL7 has a nominal reset threshold of 2.63 V, with a tolerance of ±2.5% over the −40°C to +85°C temperature range and ±3.5% over −40°C to +125°C. This specification ensures reliable detection of supply voltage sags before microprocessor operation becomes unstable, and is confirmed in Table 1 of the Rev. G datasheet under "RESET VOLTAGE THRESHOLD (VTH)".
Does ADM6315-26D1ARTRL7 support manual reset, and what are the input requirements?
Yes, ADM6315-26D1ARTRL7 includes a debounced manual reset (MR) input on Pin 3. It accepts active-low pulses ≥1 μs in duration and rejects glitches <100 ns. Input thresholds scale with VCC: for VTH < 4 V, VIH = 0.7 × VCC and VIL = 0.3 × VCC. These values are specified in the "MANUAL RESET" section of the Rev. G datasheet.
What is the minimum VCC required for ADM6315-26D1ARTRL7 to assert RESET?
The ADM6315-26D1ARTRL7 asserts RESET down to VCC > 1 V, as stated in the General Description and confirmed in the "SUPPLY" section of Table 1. This enables reliable reset generation even during severe brownout conditions where the monitored rail collapses near 1 V, critical for fail-safe operation in automotive and industrial systems.
Is ADM6315-26D1ARTRL7 qualified for automotive applications?
No-ADM6315-26D1ARTRL7 is rated for −40°C to +125°C operation but is not the automotive-grade variant. The automotive-qualified version is ADM6315W26D1ARTZR7 (with "W" prefix), which undergoes controlled manufacturing and additional reliability testing per AEC-Q100. ADM6315-26D1ARTRL7 is intended for industrial and commercial applications.
What package type and dimensions does ADM6315-26D1ARTRL7 use?
ADM6315-26D1ARTRL7 uses the 4-lead SOT-143 (RA-4) package, compliant with JEDEC TO-253-AA standards. Its outline dimensions are 2.90 mm × 1.40 mm × 1.07 mm, with 0.95 mm lead pitch and gull-wing leads. These mechanical specifications are documented in Figure 12 and the Ordering Guide of the Rev. G datasheet.
ADM6315-26D1ARTRL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- 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:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143-4
ADM6315-26D1ARTRL7 FAQ
1.How can I place an order for ADM6315-26D1ARTRL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6315-26D1ARTRL7 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 ADM6315-26D1ARTRL7 reliable?
The price and inventory of ADM6315-26D1ARTRL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6315-26D1ARTRL7 is usually 5 days.
3.What payment methods are accepted for ADM6315-26D1ARTRL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6315-26D1ARTRL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6315-26D1ARTRL7?
ADM6315-26D1ARTRL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6315-26D1ARTRL7 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 ADM6315-26D1ARTRL7?
For technical support, including ADM6315-26D1ARTRL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6315-26D1ARTRL7 requirements.
6.How does Aetrix verify that ADM6315-26D1ARTRL7 is sourced from the original manufacturer or authorized distributors?
All ADM6315-26D1ARTRL7 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 ADM6315-26D1ARTRL7 meets industry standards.
7.What is the process for return or replacement of ADM6315-26D1ARTRL7?
All ADM6315-26D1ARTRL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6315-26D1ARTRL7, 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 ADM6315-26D1ARTRL7 part is unused and in its original packaging.
Return procedure for ADM6315-26D1ARTRL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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