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Analog Devices Inc. ADM6315-46D2ARTZR7
- Part No.:
- ADM6315-46D2ARTZR7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
ADM6315-46D2ARTZR7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,086
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Product details
Overview
ADM6315-46D2ARTZR7 from Analog Devices is an open-drain microprocessor supervisory circuit in a 4-lead SOT-143 package, designed to monitor 4.63 V supply rails with ±2.5% threshold accuracy over −40°C to +85°C, 20 ms minimum reset timeout, and 5 μA typical supply current. It provides reliable power-on reset, brownout detection, and debounced manual reset for embedded microcontroller systems.
For engineers reviewing the ADM6315-46D2ARTZR7 datasheet, ADM6315-46D2ARTZR7 pinout, ADM6315-46D2ARTZR7 application, or ADM6315-46D2ARTZR7 equivalent, key selection criteria include its 4.63 V trip point, 20 ms reset timeout, open-drain RESET output capable of sinking 3.2 mA at VCC > 4.25 V, manual reset input with 100 ns glitch rejection, and operation down to VCC > 1 V.
Technical Context
The ADM6315-46D2ARTZR7 integrates a precision voltage reference comparator with hysteresis, a debounced manual reset input (MR), and an open-drain RESET output that remains low during VCC undervoltage or MR assertion, then holds low for ≥20 ms after recovery. Its internal reference enables accurate monitoring of 4.63 V supplies with ±2.5% tolerance across industrial temperature range.
It features transient immunity up to 100 ns glitches on MR, 35 μs typical response to VCC falling at 1 mV/μs, and guaranteed reset assertion down to VCC > 1 V. The device operates from 1 V to 5.5 V and draws only 5 μA typical quiescent current at 5.5 V and −40°C to +85°C.
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 rail degradation before system malfunction. |
| Reset Timeout | 20 ms minimum (ADM6315xxD2 variant); guarantees sufficient hold time for microprocessor initialization after power-up. |
| Supply Current | 5 μA typical at VCC = 5.5 V, −40°C to +85°C; enables ultra-low-power operation in battery-backed or energy-sensitive systems. |
| Operating Voltage Range | 1 V to 5.5 V; supports reset assertion even during deep brownout conditions where VCC drops below 2.5 V. |
| RESET Output Type | Open-drain; allows wired-OR configuration, level-shifting, and compatibility with higher-voltage logic families. |
| Manual Reset Input | Debounced with 100 ns glitch rejection and 1 μs minimum pulse width; prevents spurious resets in noisy environments. |
| VCC to RESET Delay | 35 μs typical (VCC falling at 1 mV/μs); ensures fast system-wide reset initiation during rapid supply collapse. |
Pinout & Package
Package: 4-Lead SOT-143 (RA-4), JEDEC-compliant, 2.90 mm × 1.40 mm footprint, 0.95 mm height, 330°C/W θJA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | 0 V return path for all internal circuits and external reset load; must be connected to system ground plane. |
| 2 (RESET) | Active-low open-drain output | Sinks current when asserted; requires external pull-up to define logic high level and interface voltage (e.g., 3.3 V or 5 V). |
| 3 (MR) | Debounced manual reset input | Active-low; accepts pulses ≥1 μs; ignores transients <100 ns; floating = disabled; connects to switch or digital signal. |
| 4 (VCC) | Monitored supply input | Primary voltage source and monitored rail; powers internal circuitry and determines reset assertion based on 4.63 V threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage monitoring | 4.63 V trip point with ±2.5% accuracy over −40°C to +85°C enables stable reset behavior across industrial temperature range. |
| Ultra-low quiescent current | 5 μA typical at 5.5 V supports long-term operation in always-on or battery-powered supervisory applications. |
| Four factory-set timeout options | 20 ms minimum (D2 variant) balances fast recovery with sufficient processor initialization time without external timing components. |
| Robust manual reset interface | 100 ns glitch rejection and 1 μs minimum pulse width ensure reliable user-initiated reset in electrically noisy systems. |
| Wide operating voltage range | 1 V to 5.5 V operation allows reset assertion during severe brownouts, preventing corrupted memory writes or CPU lockup. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
|
Use Scenario: Power sequencing and fault recovery in programmable logic controller mainboard with 5 V supply rail. IC Role / Device Role / Timing Role: Supervisory IC asserting active-low RESET to ARM Cortex-M7 MCU until 5 V rail stabilizes above 4.63 V for ≥20 ms. Use Value: Prevents firmware execution during unstable power-up; eliminates need for discrete RC reset circuit and reduces BOM count by one component. |
Use Scenario: Reset coordination across multiple ECUs sharing a common 5 V domain in vehicle body electronics. IC Role / Device Role / Timing Role: Open-drain RESET output enables wired-OR connection to shared reset bus, ensuring synchronized restart on supply dip or manual service reset. Use Value: Enables single-point reset control across distributed modules while maintaining electrical isolation and voltage-level flexibility. |
| Medical Patient Monitor | Smart Energy Meter |
|
Use Scenario: Ensuring deterministic boot sequence in battery-backed vital sign acquisition system with 4.6 V nominal rail. IC Role / Device Role / Timing Role: Monitors 4.63 V supply derived from Li-ion battery regulator; asserts RESET if voltage sags below threshold during high-current sensor burst. Use Value: Guarantees clean restart before data corruption occurs, meeting IEC 60601-1 functional safety requirements for reset integrity. |
Use Scenario: Maintaining secure state during AC mains interruption in Class 0.5S electricity meter with backup supercapacitor. IC Role / Device Role / Timing Role: Detects 4.63 V backup rail collapse and triggers hardware reset before RTC or metrology ASIC enters undefined state. Use Value: Preserves metering accuracy and tamper logs by enforcing controlled shutdown/restart instead of uncontrolled brownout behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326–46D2 | 4.63 V threshold, 20 ms timeout, SOT-23-4 package; higher 10 μA max supply current vs. ADM6315-46D2ARTZR7's 12 μA max at +85°C. | Same trip point and timeout but smaller SOT-23 footprint; lacks built-in MR debounce-requires external RC filter. | Select MAX6326–46D2 only if board space is constrained and external filtering is acceptable. |
| TPS3808G33DBVR | 3.3 V fixed threshold (not 4.63 V); adjustable timeout via capacitor; 1.5 μA typical IQ; SOT-23-6 package. | Requires external timing capacitor and cannot directly replace 4.63 V monitoring; suited for lower-voltage domains. | Choose TPS3808G33DBVR only for new designs targeting 3.3 V rails with programmable timeout needs. |
Compared with MAX6326–46D2 and TPS3808G33DBVR, the ADM6315-46D2ARTZR7 delivers factory-trimmed 4.63 V accuracy, integrated MR debounce, and lowest typical supply current in its class-making it optimal for space-constrained, low-power, industrial-grade 5 V supervisory roles where pin compatibility and minimal external components are critical.
Availability
ADM6315-46D2ARTZR7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical patient monitors, and smart energy meters requiring stable component supply, RoHS-compliant packaging, and long-lifecycle availability.
Supply support for ADM6315-46D2ARTZR7 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM6315 family was developed specifically for cost-sensitive, space-constrained microprocessor supervisory applications demanding precision voltage monitoring, low power, and robust reset timing-targeting industrial, automotive, and portable instrumentation markets.
FAQ
What is the exact reset threshold voltage and tolerance for ADM6315-46D2ARTZR7?
The ADM6315-46D2ARTZR7 has a nominal reset threshold of 4.63 V, with ±2.5% tolerance over the −40°C to +85°C temperature range and ±3.5% over −40°C to +125°C. This specification is factory-trimmed and verified per Analog Devices' Rev. E datasheet Table 1, ensuring consistent detection of supply degradation across industrial operating conditions. The ADM6315-46D2ARTZR7 maintains this accuracy without external calibration.
Does ADM6315-46D2ARTZR7 support manual reset, and how is it implemented?
Yes, the ADM6315-46D2ARTZR7 includes a dedicated MR (Manual Reset) pin (Pin 3) that accepts active-low signals. It features built-in debounce with guaranteed acceptance of pulses ≥1 μs and rejection of glitches <100 ns. When MR is pulled low, RESET asserts immediately and remains low for the full 20 ms timeout period. The ADM6315-46D2ARTZR7 requires no external components for MR functionality-floating MR disables the feature.
What is the maximum sink current capability of the ADM6315-46D2ARTZR7 RESET output?
The ADM6315-46D2ARTZR7 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. Its output voltage remains ≤0.4 V under these loads, enabling direct interfacing with standard CMOS or TTL inputs. This sink strength ensures reliable drive into typical microcontroller reset pins without additional buffering.
Can ADM6315-46D2ARTZR7 operate with supply voltages below 2.5 V?
Yes, the ADM6315-46D2ARTZR7 operates from 1 V to 5.5 V and asserts RESET down to VCC > 1 V, making it functional during deep brownout conditions where many supervisory ICs fail. Its internal reference and comparator remain active, and the RESET output maintains specified leakage (<1 μA) and sink capability (80 μA) even at 1 V. This behavior is confirmed in the Rev. E datasheet Absolute Maximum Ratings and Specifications tables.
Is ADM6315-46D2ARTZR7 pin-compatible with other devices in the ADM6315 family?
Yes, all ADM6315 variants-including ADM6315-46D2ARTZR7-are pin-compatible within the SOT-143 package, sharing identical Pin 1 (GND), Pin 2 (RESET), Pin 3 (MR), and Pin 4 (VCC) assignments. This allows drop-in replacement across trip points (e.g., 4.63 V, 4.50 V) and timeout options (1 ms, 20 ms, 140 ms, 1120 ms) without PCB redesign. The ADM6315-46D2ARTZR7 maintains full mechanical and electrical compatibility with the entire family.
ADM6315-46D2ARTZR7 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:
- 4.63V
- 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
ADM6315-46D2ARTZR7 FAQ
1.How can I place an order for ADM6315-46D2ARTZR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6315-46D2ARTZR7 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 ADM6315-46D2ARTZR7 reliable?
The price and inventory of ADM6315-46D2ARTZR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6315-46D2ARTZR7 is usually 5 days.
3.What payment methods are accepted for ADM6315-46D2ARTZR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6315-46D2ARTZR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6315-46D2ARTZR7?
ADM6315-46D2ARTZR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6315-46D2ARTZR7 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 ADM6315-46D2ARTZR7?
For technical support, including ADM6315-46D2ARTZR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6315-46D2ARTZR7 requirements.
6.How does Aetrix verify that ADM6315-46D2ARTZR7 is sourced from the original manufacturer or authorized distributors?
All ADM6315-46D2ARTZR7 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 ADM6315-46D2ARTZR7 meets industry standards.
7.What is the process for return or replacement of ADM6315-46D2ARTZR7?
All ADM6315-46D2ARTZR7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6315-46D2ARTZR7, 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 ADM6315-46D2ARTZR7 part is unused and in its original packaging.
Return procedure for ADM6315-46D2ARTZR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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