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Analog Devices Inc. ADM1817-10AKS-RL7
- Part No.:
- ADM1817-10AKS-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1817-10AKS-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,586
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Product details
Overview
ADM1817-10AKS-RL7 from Analog Devices is a microprocessor reset circuit with active high push-pull output, 2.88 V typical reset threshold, 150 ms reset timeout, and −40°C to +105°C operating temperature range. It monitors 3.3 V/3 V/2.5 V supplies in embedded controllers and industrial microprocessor systems requiring reliable power-on initialization.
For engineers reviewing the ADM1817-10AKS-RL7 datasheet, ADM1817-10AKS-RL7 pinout, ADM1817-10AKS-RL7 application, or ADM1817-10AKS-RL7 equivalent, key selection criteria include reset threshold tolerance (±1.5% typ), supply current (≤10 µA at 3.6 V), push-pull drive capability (350 µA source / 8 mA sink), and SC70-3 package compatibility with space-constrained PCB layouts.
Technical Context
The ADM1817-10AKS-RL7 implements a precision voltage comparator with internal bandgap reference and 150 ms monostable delay to ensure safe system startup after power stabilization. Its active high push-pull output directly interfaces with microprocessor reset inputs without external pull-up components.
Designed for low-voltage monitoring, it supports trip points down to 2.18 V and operates across the full industrial temperature range. The device features guaranteed reset assertion during power-down (10 µs response) and controlled release timing (100–250 ms) to prevent premature initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.88 V typical (for 3.3 V supply monitoring; ±1.5% tolerance ensures robust noise margin) |
| Reset Timeout | 150 ms typical (guarantees stable power rail before releasing reset signal) |
| Supply Voltage Range | 1.2 V to 5.5 V (supports wide input supply variation while maintaining accuracy) |
| Supply Current | ≤10 µA at 3.6 V (enables ultra-low-power operation in battery-backed systems) |
| Output Type | Active high push-pull (drives reset line high without external components; 350 µA source / 8 mA sink) |
| Operating Temp | −40°C to +105°C (qualified for industrial and automotive under-hood environments) |
| Package | SC70-3 (1.8 mm × 2.1 mm footprint; compatible with automated SMT assembly) |
Pinout & Package
ADM1817-10AKS-RL7 is housed in a 3-lead SC70 package (KS-3), with 0.65 mm lead pitch and coplanarity ≤0.10 mm. Pin 1 = RST (active high reset output), Pin 2 = VCC (monitored supply input), Pin 3 = GND (0 V reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active high push-pull reset output; remains high for 150 ms after VCC rises above threshold |
| 2 | VCC | Supply voltage input being monitored; powers internal circuitry and sets comparator reference |
| 3 | GND | Ground reference for all internal functions and output stage; must be connected to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed reset assertion on power-down | 10 µs response time prevents brownout-induced processor lockup |
| Precision voltage detection | ±1.5% typical threshold tolerance over temperature ensures consistent reset behavior |
| Low quiescent current | ≤10 µA at 3.6 V enables use in always-on subsystems without significant battery drain |
| Direct microprocessor interface | Push-pull output eliminates need for external pull-up resistor or level-shifting circuitry |
| Industrial temperature qualification | −40°C to +105°C operation validated per AEC-Q100 stress test conditions |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in programmable logic controller CPU boards with 3.3 V I/O rails and 2.5 V core supplies. IC Role / Device Role / Timing Role: Monitors 3.3 V supply and asserts active high reset until voltage stabilizes for ≥150 ms post-power-up. Use Value: Prevents firmware corruption during cold start by enforcing minimum power-rail hold time before processor release. | Use Scenario: Reset supervision for microcontrollers managing door locks, lighting, and window controls in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Detects undervoltage on regulated 3.3 V domain and holds reset active during engine cranking transients. Use Value: Ensures deterministic MCU boot after battery voltage dip (down to 2.88 V), avoiding erratic peripheral behavior. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Battery-powered portable ultrasound or ECG device with dual 3.3 V/2.5 V supply domains. IC Role / Device Role / Timing Role: Provides fail-safe reset initiation when main Li-ion supply drops below 2.88 V during discharge. Use Value: Enables graceful shutdown sequence before critical data loss, meeting IEC 62304 safety requirements. | Use Scenario: Tamper-resistant electricity meter with isolated microcontroller and real-time clock subsystem. IC Role / Device Role / Timing Role: Supervises 3.3 V backup rail powering RTC and secure memory during main AC failure. Use Value: Guarantees accurate timekeeping and nonvolatile event logging even during brief AC interruptions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT29D3+T | 2.93 V fixed threshold; 140 ms timeout; SOT-23-3 package | Higher threshold better suited for 3.3 V ±5% rails; lacks extended temp rating (−40°C to +85°C only) | Select when tighter 2.93 V trip point is required and industrial temp range is not mandatory |
| TPS3808G12DBVR | 1.22 V adjustable threshold via external resistor divider; 200 ms timeout; SOT-23-6 package | Requires external components for configuration; supports custom thresholds but increases BOM count and layout area | Select when flexible trip point tuning is needed and board space allows 6-pin package |
Compared with MAX6326UT29D3+T and TPS3808G12DBVR, the ADM1817-10AKS-RL7 offers superior temperature range coverage, lower quiescent current, and zero-component integration-making it optimal for compact, high-reliability industrial designs where fixed 2.88 V monitoring suffices.
Availability
ADM1817-10AKS-RL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical handheld diagnostics, smart energy meters, and other applications requiring stable component supply with guaranteed long-term availability.
Supply support for ADM1817-10AKS-RL7 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.
The ADM181x series was designed specifically for cost-sensitive, space-constrained microprocessor reset supervision in industrial and automotive electronics-emphasizing precision threshold accuracy, low power, and robust thermal performance.
FAQ
What is the exact reset threshold voltage of the ADM1817-10AKS-RL7?
The ADM1817-10AKS-RL7 has a nominal reset threshold of 2.88 V, with a typical tolerance of ±1.5% over the full −40°C to +105°C operating temperature range. This value is specified in Table 1 of the Rev. F datasheet under "ADM1815-10/ADM1816-10/ADM1817-10/ADM1818-10" row, confirming its suitability for monitoring 3.3 V supplies with adequate noise margin.
Does the ADM1817-10AKS-RL7 require an external pull-up resistor?
No, the ADM1817-10AKS-RL7 does not require an external pull-up resistor because it features an active high push-pull output stage. Unlike open-drain variants (e.g., ADM1816-10), this version drives the RST pin high actively, enabling direct connection to microprocessor reset inputs without additional components.
What package type is used for the ADM1817-10AKS-RL7?
The ADM1817-10AKS-RL7 uses the SC70-3 (KS-3) package-a 3-lead, surface-mount thin shrink small outline transistor package measuring 2.00 mm × 2.10 mm × 0.95 mm. Its pinout matches Figure 3 and Table 3 in the datasheet, with Pin 1 = RST, Pin 2 = VCC, Pin 3 = GND.
Can the ADM1817-10AKS-RL7 monitor a 2.5 V supply rail?
Yes, the ADM1817-10AKS-RL7 can monitor a 2.5 V supply rail, though its 2.88 V threshold is optimized for 3.3 V systems. For dedicated 2.5 V monitoring, Analog Devices recommends the ADM1817-20 variant (2.55 V typical threshold), which shares identical pinout, package, and functional architecture.
What is the reset timeout duration of the ADM1817-10AKS-RL7?
The ADM1817-10AKS-RL7 provides a typical reset timeout of 150 ms, with a guaranteed range of 100 ms to 250 ms over temperature and voltage. This delay ensures the monitored supply stabilizes before releasing the reset signal, preventing premature microprocessor initialization during power-up transients.
ADM1817-10AKS-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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 High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
ADM1817-10AKS-RL7 FAQ
1.How can I place an order for ADM1817-10AKS-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1817-10AKS-RL7 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 ADM1817-10AKS-RL7 reliable?
The price and inventory of ADM1817-10AKS-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1817-10AKS-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1817-10AKS-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1817-10AKS-RL7 transactions.
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4.How is shipping managed for ADM1817-10AKS-RL7?
ADM1817-10AKS-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1817-10AKS-RL7 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 ADM1817-10AKS-RL7?
For technical support, including ADM1817-10AKS-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1817-10AKS-RL7 requirements.
6.How does Aetrix verify that ADM1817-10AKS-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1817-10AKS-RL7 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 ADM1817-10AKS-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1817-10AKS-RL7?
All ADM1817-10AKS-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1817-10AKS-RL7, 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 ADM1817-10AKS-RL7 part is unused and in its original packaging.
Return procedure for ADM1817-10AKS-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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