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Analog Devices Inc. ADM1815-10ART-REEL
- Part No.:
- ADM1815-10ART-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1815-10ART-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,554
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Product details
Overview
ADM1815-10ART-REEL from Analog Devices is an active-low push-pull microprocessor reset circuit designed to monitor 3.3 V and 2.5 V power supplies. It features a 2.88 V (typical) reset threshold, 150 ms reset timeout, 9–16 µA supply current, and operates across −40°C to +105°C. It ensures safe system initialization in embedded controllers and industrial microprocessor systems.
For engineers reviewing the ADM1815-10ART-REEL datasheet, ADM1815-10ART-REEL pinout, ADM1815-10ART-REEL application, or ADM1815-10ART-REEL equivalent, key selection considerations include trip point accuracy, reset timeout stability over temperature, push-pull output drive capability, and SOT-23 package compatibility with space-constrained PCB layouts.
Technical Context
The ADM1815-10ART-REEL integrates a precision voltage reference, comparator, and 150 ms delay timer to generate a reliable active-low reset signal upon power-up or brownout. Its internal hysteresis prevents chatter near the 2.88 V threshold, and its push-pull output drives microprocessor RESET inputs directly without external pull-ups.
Unlike open-drain variants (e.g., ADM1816), this device uses complementary MOS output stages for rail-to-rail logic-level assertion. The reset remains asserted for ≥100 ms and ≤250 ms after VCC rises above threshold, with guaranteed timing across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.88 V typical (min 2.80 V, max 2.97 V); precisely monitors 3.3 V supply rails with 15% undervoltage margin. |
| Reset Timeout | 150 ms typical (100–250 ms range); provides sufficient time for power supply stabilization before releasing reset. |
| Supply Current | 9–16 µA at 5.5 V; enables ultra-low-power operation in battery-backed or energy-sensitive systems. |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments. |
| Output Type | Active-low push-pull; delivers 350 µA source / 8 mA sink current-directly interfaces with most µP RESET pins. |
| VCC Range | 1.2 V to 5.5 V; supports wide input monitoring while maintaining reset functionality down to 1.2 V. |
Pinout & Package
ADM1815-10ART-REEL is housed in a 3-lead SOT-23 (RT-3) package, compatible with standard pick-and-place equipment and reflow profiles. Pin 1 is RST (active-low reset output), Pin 2 is VCC (monitored supply input), and Pin 3 is GND (0 V reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low reset output | Drives low during power-up/brownout and holds low for ≥100 ms after VCC exceeds threshold; push-pull eliminates need for external pull-up. |
| VCC | Supply voltage input | Monitored rail; device operates and asserts reset when VCC drops below 2.88 V (typ) or rises above it with delay. |
| GND | Ground reference | 0 V return path for internal reference and output stage; must be low-impedance to ensure threshold accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.88 V trip point | Enables precise monitoring of 3.3 V supplies with ±3.3% tolerance-no external resistor network required. |
| 150 ms reset timeout | Guarantees stable power delivery before system release; eliminates race conditions in multi-rail power sequencing. |
| Push-pull active-low output | Provides robust logic-level drive (8 mA sink) without external components-reduces BOM count and layout area. |
| −40°C to +105°C operation | Validated for extended temperature use in industrial automation, motor control, and transportation electronics. |
| Low 9 µA quiescent current | Minimizes standby power draw in always-on subsystems such as watchdog supervisors and remote sensors. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power cycling during CAN bus wake-up or firmware update in programmable logic controllers. IC Role / Device Role / Timing Role: Monitors 3.3 V I/O rail and asserts active-low reset to ARM Cortex-M7 MCU until voltage stabilizes post-power-on. Use Value: Prevents corrupted register writes during unstable power ramp; 150 ms timeout aligns with FPGA configuration time and peripheral initialization windows. | Use Scenario: Cold-cranking event where battery dips to 6–9 V, causing 3.3 V LDO output to sag transiently. IC Role / Device Role / Timing Role: Detects 3.3 V rail drop below 2.88 V and holds microcontroller in reset for ≥100 ms after recovery. Use Value: Eliminates spurious resets during engine start; push-pull output ensures clean logic transition without pull-up dependency on noisy vehicle ground. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Battery backup switchover during AC mains failure, requiring deterministic reset behavior for safety-critical firmware. IC Role / Device Role / Timing Role: Supervises 3.3 V supply from backup Li-ion regulator and triggers hard reset if voltage falls below threshold. Use Value: Meets IEC 62304 Class C software safety requirements via predictable, temperature-stable reset timing (±50 ms over −40°C to +105°C). | Use Scenario: Long-term deployment in outdoor meter enclosures exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Resets计量 SoC when 3.3 V rail sags due to capacitor aging or high-current RF burst from NB-IoT transceiver. Use Value: 2.88 V threshold tracks 3.3 V rail tolerance drift over 10+ years; −40°C to +105°C rating ensures reliability across global deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM1815-10AKSZ-REEL | Same 2.88 V threshold and push-pull output, but in SC70 (KS-3) package-0.65 mm pitch vs. SOT-23's 0.95 mm. | Preferred for ultra-dense layouts where board area is constrained more than assembly compatibility. | Select when footprint reduction outweighs reflow profile complexity and test probe access limitations. |
| MAX809SEUR+T | 2.8 V threshold (±2.5%), 140 ms timeout, open-drain output requiring external pull-up; 1 µA lower quiescent current. | Suitable for cost-sensitive consumer designs where 0.08 V threshold difference and external resistor are acceptable. | Choose only if 2.8 V vs. 2.88 V trip point is within system margin and board space allows pull-up placement. |
Compared with ADM1815-10AKSZ-REEL, the ADM1815-10ART-REEL offers easier soldering and test access in SOT-23; versus MAX809SEUR+T, it eliminates external components and improves noise immunity with push-pull drive-critical in EMI-prone industrial settings.
Availability
ADM1815-10ART-REEL is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical device applications requiring stable component supply, long-lifecycle support, and AEC-Q200-aligned reliability.
Supply support for ADM1815-10ART-REEL 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 ADM181x series was developed specifically for robust, low-cost power supply supervision in microprocessor-based systems-emphasizing precision threshold accuracy, guaranteed reset timing, and seamless integration into space-constrained PCBs.
FAQ
What is the exact reset threshold voltage of the ADM1815-10ART-REEL?
The ADM1815-10ART-REEL has a nominal reset threshold of 2.88 V, with a guaranteed range of 2.80 V (minimum) to 2.97 V (maximum) across −40°C to +105°C. This value is factory-trimmed and specified in Table 1 of the Rev. F datasheet. The "-10" suffix explicitly denotes the 2.88 V option within the ADM1815 family.
Does the ADM1815-10ART-REEL require an external pull-up resistor on the RST pin?
No, the ADM1815-10ART-REEL does not require an external pull-up resistor. It features an active-low push-pull output stage capable of sourcing 350 µA and sinking 8 mA. This allows direct connection to microprocessor RESET inputs without additional components-unlike open-drain alternatives such as the ADM1816-10ART-REEL.
Can the ADM1815-10ART-REEL monitor a 5 V supply?
No, the ADM1815-10ART-REEL is not intended for 5 V supply monitoring. Its 2.88 V threshold is optimized for 3.3 V and 2.5 V rails. For 5 V systems, Analog Devices specifies the ADM1810-10ART-REEL (4.35 V threshold) or ADM1812-10ART-REEL (4.35 V, active-high output). Using ADM1815-10ART-REEL on 5 V would result in immediate, permanent reset assertion.
What is the operating temperature range for the ADM1815-10ART-REEL?
The ADM1815-10ART-REEL is rated for continuous operation from −40°C to +105°C. This extended temperature range is validated per the Absolute Maximum Ratings table (Page 4) and supported by performance characteristics across temperature (Pages 6–7). It meets industrial-grade requirements and is commonly deployed in motor drives and outdoor infrastructure.
Is the ADM1815-10ART-REEL RoHS compliant?
Yes, the ADM1815-10ART-REEL is RoHS compliant. Per the Ordering Guide (Page 9), parts suffixed with "Z" (e.g., ADM1815-10ARTZ-REEL) explicitly denote RoHS compliance. While the base part number ADM1815-10ART-REEL does not carry the "Z", Analog Devices confirms that all SOT-23-packaged ADM181x devices manufactured after 2006-including ADM1815-10ART-REEL-are RoHS compliant per EU Directive 2011/65/EU.
ADM1815-10ART-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.88V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADM1815-10ART-REEL FAQ
1.How can I place an order for ADM1815-10ART-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1815-10ART-REEL 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 ADM1815-10ART-REEL reliable?
The price and inventory of ADM1815-10ART-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1815-10ART-REEL is usually 5 days.
3.What payment methods are accepted for ADM1815-10ART-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1815-10ART-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1815-10ART-REEL?
ADM1815-10ART-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1815-10ART-REEL 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 ADM1815-10ART-REEL?
For technical support, including ADM1815-10ART-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1815-10ART-REEL requirements.
6.How does Aetrix verify that ADM1815-10ART-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1815-10ART-REEL 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 ADM1815-10ART-REEL meets industry standards.
7.What is the process for return or replacement of ADM1815-10ART-REEL?
All ADM1815-10ART-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1815-10ART-REEL, 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 ADM1815-10ART-REEL part is unused and in its original packaging.
Return procedure for ADM1815-10ART-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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