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Analog Devices Inc. ADM1813-5AKS-REEL
- Part No.:
- ADM1813-5AKS-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1813-5AKS-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:30,523
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Product details
Overview
ADM1813-5AKS-REEL from Analog Devices is a 3-pin SC70-packaged microprocessor reset circuit with open-drain output and internal 5.5 kΩ pull-up resistor, designed for monitoring 5 V power supplies. It features a 4.62 V typical reset threshold, 150 ms reset timeout, −40°C to +105°C operating range, and push-button reset capability. It ensures safe system initialization in embedded controllers and industrial microprocessor systems.
For engineers reviewing the ADM1813-5AKS-REEL datasheet, ADM1813-5AKS-REEL pinout, ADM1813-5AKS-REEL application, or ADM1813-5AKS-REEL equivalent, this page delivers verified specifications, package mapping, functional pin roles, real-world use scenarios, and validated alternative options for voltage-monitoring reset design.
Technical Context
The ADM1813-5AKS-REEL implements a precision bandgap-based voltage comparator with hysteresis and a fixed 150 ms reset delay timer. Its open-drain RST output with integrated 5.5 kΩ pull-up eliminates external components while supporting manual reset via push-button connection between RST and GND.
It operates across 1.2 V to 5.5 V supply range, draws only 4–10 µA at 3.6 V, and guarantees reset assertion during VCC fall below 4.50 V (min) and release after VCC rises above 4.75 V (max), with 1 µs push-button detect latency and 150 ms post-release hold time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.62 V typical (4.50 V min / 4.75 V max); ensures reliable detection of 5 V supply undervoltage before system corruption. |
| Reset Timeout | 150 ms typical (100–250 ms range); provides guaranteed stabilization window for power rails and clock circuits pre-initialization. |
| Supply Range | 1.2 V to 5.5 V; supports operation even during brown-out conditions while maintaining valid reset assertion. |
| Quiescent Current | 4 µA at 3.6 V (10 µA max); enables ultra-low-power monitoring in battery-backed or energy-constrained systems. |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; simplifies interface to diverse logic families without external resistors. |
| Push-Button Support | Detects >1 µs button press and holds RST low for 150 ms post-release; enables field-serviceable hardware reset without firmware involvement. |
| Operating Temp | −40°C to +105°C; qualified for under-hood automotive, industrial PLC, and outdoor embedded applications. |
Pinout & Package
ADM1813-5AKS-REEL is housed in a 3-lead SC70 (KS-3) package - 2.00 mm × 2.10 mm × 0.90 mm, JEDEC-compliant, surface-mount, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SC70) | RST | Active-low open-drain reset output; floats high via internal 5.5 kΩ pull-up; pulled low during VCC fault or push-button activation. |
| 2 (SC70) | VCC | Monitored supply input; powers internal circuitry and sets comparator reference; accepts 1.2 V–5.5 V. |
| 3 (SC70) | GND | 0 V reference for all internal biasing, comparator, and timing circuits; must be low-impedance return path. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ ±40%; eliminates external component count and PCB footprint for open-drain interface. |
| Manual reset support | 1 µs push-button detect latency + 150 ms hold time; enables user-triggered safe reinitialization without software stack dependency. |
| Fixed reset timeout | 150 ms typical delay from VCC rise above threshold; prevents premature release before power/PLL/clock stabilization. |
| Wide temperature range | −40°C to +105°C operation; meets industrial and extended-temperature automotive requirements without derating. |
| Low supply current | 4 µA at 3.6 V; reduces system standby power and extends battery life in always-on monitoring applications. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power-on sequence in programmable logic controller where 5 V rail must stabilize before FPGA configuration and I/O initialization. IC Role / Device Role / Timing Role: Voltage monitor and timed reset generator ensuring 150 ms delay before releasing processor reset line. Use Value: Prevents configuration failure due to premature release; eliminates need for discrete RC timing network or supervisor IC with external capacitor. |
Use Scenario: Reset coordination during vehicle ignition cycle where battery voltage surges and sags before settling. IC Role / Device Role / Timing Role: Active-low open-drain reset supervisor interfacing directly to MCU reset pin with internal pull-up. Use Value: Guarantees clean reset pulse despite transient dips; push-button support enables service-mode recovery without diagnostic tool. |
| Network Router Management CPU | Medical Diagnostic Instrument |
Use Scenario: Dual-rail power sequencing in edge router where 5 V auxiliary supply powers management SoC independently of main 12 V rail. IC Role / Device Role / Timing Role: Dedicated 5 V supply monitor with precise 4.62 V threshold and no external components. Use Value: Reduces BOM cost and layout area versus discrete comparator + timer solution; RoHS-compliant SC70 fits dense routing. |
Use Scenario: Safety-critical boot validation in portable ultrasound unit requiring deterministic reset behavior after battery insertion or AC adapter connect. IC Role / Device Role / Timing Role: Fail-safe reset generator with guaranteed 150 ms hold time and −40°C to +105°C qualification. Use Value: Meets IEC 60601-1 reliability expectations; internal pull-up avoids single-point-of-failure external resistor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor with reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM1811-5AKSZ-REEL | Same SC70 package, 4.62 V threshold, but active-low open-drain output without internal pull-up resistor. | Requires external pull-up for logic-high state; less suitable for space-constrained designs where board area is premium. | Select ADM1811-5AKSZ-REEL only if external resistor value tuning or higher pull-up strength (>5.5 kΩ) is required. |
| MAX6326UT46D3+T | 4.63 V threshold, 200 ms reset timeout, SOT-23-3 package, no push-button support, 1.2 µA typical supply current. | Lacks manual reset functionality; optimized for ultra-low-power battery monitoring rather than interactive system recovery. | Choose MAX6326UT46D3+T when minimal quiescent current is critical and push-button reset is unnecessary. |
Compared with ADM1813-5AKS-REEL, ADM1811-5AKSZ-REEL adds design flexibility at the cost of component count, while MAX6326UT46D3+T trades push-button capability for lower supply current-making ADM1813-5AKS-REEL optimal for compact, serviceable 5 V reset supervision.
Availability
ADM1813-5AKS-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and medical diagnostic instruments requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ADM1813-5AKS-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 engineered specifically for cost-sensitive, space-constrained microprocessor reset supervision-delivering precision voltage monitoring, fixed-timing reset, and manual recovery in ultra-small SC70 and SOT-23 packages.
FAQ
What is the exact reset threshold voltage for ADM1813-5AKS-REEL?
The ADM1813-5AKS-REEL has a guaranteed reset threshold of 4.50 V (minimum), 4.62 V (typical), and 4.75 V (maximum) at −40°C to +105°C. This 4.62 V nominal trip point is optimized for reliable supervision of standard 5 V power rails, with built-in hysteresis to prevent chatter near the threshold.
Does ADM1813-5AKS-REEL require an external pull-up resistor?
No, ADM1813-5AKS-REEL integrates a 5.5 kΩ internal pull-up resistor on its open-drain RST pin, eliminating the need for external components. This simplifies PCB layout, reduces BOM count, and ensures consistent rise time and logic-high level without tolerance stacking from discrete resistors.
Can ADM1813-5AKS-REEL be used with a push-button for manual reset?
Yes, ADM1813-5AKS-REEL explicitly supports manual reset: connecting a push-button between RST and GND pulls the output low, and upon release, the device holds RST low for 150 ms typical. This enables field-serviceable hardware reset independent of firmware execution or communication interfaces.
What package type and dimensions does ADM1813-5AKS-REEL use?
ADM1813-5AKS-REEL uses the 3-lead SC70 (KS-3) package: 2.00 mm × 2.10 mm × 0.90 mm body size, compliant with EIAJ SC70 standards. Pin 1 is RST, Pin 2 is VCC, and Pin 3 is GND - matching the top-view pinout shown in Analog Devices' official datasheet Figure 3.
How does ADM1813-5AKS-REEL behave during power-up and power-down events?
During power-up, ADM1813-5AKS-REEL asserts RST low until VCC exceeds 4.75 V (max threshold), then holds RST low for 150 ms before releasing it high. During power-down, RST goes low within 10 µs after VCC falls below 4.50 V (min threshold), ensuring immediate fault response without delay.
ADM1813-5AKS-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.62V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
ADM1813-5AKS-REEL FAQ
1.How can I place an order for ADM1813-5AKS-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1813-5AKS-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 ADM1813-5AKS-REEL reliable?
The price and inventory of ADM1813-5AKS-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1813-5AKS-REEL is usually 5 days.
3.What payment methods are accepted for ADM1813-5AKS-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1813-5AKS-REEL transactions.
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ADM1813-5AKS-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1813-5AKS-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 ADM1813-5AKS-REEL?
For technical support, including ADM1813-5AKS-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1813-5AKS-REEL requirements.
6.How does Aetrix verify that ADM1813-5AKS-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1813-5AKS-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 ADM1813-5AKS-REEL meets industry standards.
7.What is the process for return or replacement of ADM1813-5AKS-REEL?
All ADM1813-5AKS-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1813-5AKS-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 ADM1813-5AKS-REEL part is unused and in its original packaging.
Return procedure for ADM1813-5AKS-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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