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Analog Devices Inc. ADM6315-29D1ARTRL7
- Part No.:
- ADM6315-29D1ARTRL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
ADM6315-29D1ARTRL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:20,784
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Product details
Overview
ADM6315-29D1ARTRL7 from Analog Devices is a precision open-drain microprocessor supervisory circuit in SOT-143 package, monitoring 2.93 V supply with ±2.5% threshold 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, or manual reset, supporting safety-critical microprocessor systems.
For engineers reviewing the ADM6315-29D1ARTRL7 datasheet, ADM6315-29D1ARTRL7 pinout, ADM6315-29D1ARTRL7 application, or ADM6315-29D1ARTRL7 equivalent, key selection criteria include reset threshold tolerance, temperature range (−40°C to +125°C), open-drain output drive capability, manual reset debounce timing, and automotive qualification status.
Technical Context
The ADM6315-29D1ARTRL7 implements a precision bandgap-based voltage reference and comparator to detect VCC falling below 2.93 V ±2.5%, asserting RESET within 35 μs (typical) at 1 mV/μs slew rate. Its internal debounced MR input rejects <100 ns glitches and accepts ≥1 μs pulses.
RESET remains low for ≥1 ms after VCC rises above threshold and MR returns high, ensuring reliable system initialization. The open-drain output supports pull-up to voltages higher than VCC, enabling interoperability with mixed-voltage logic domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93 V ±2.5% over −40°C to +85°C - ensures accurate detection of 2.93 V supply degradation before microprocessor malfunction. |
| Reset Timeout | 1 ms minimum - guarantees sufficient hold time for processor core and peripherals to stabilize post-power-up. |
| Supply Current | 5 μA typical at 5.5 V - enables ultra-low-power operation in battery-backed or energy-constrained systems. |
| Operating Voltage | 1 V to 5.5 V - allows reset assertion down to VCC > 1 V, supporting deep brownout recovery. |
| Manual Reset Input | Debounced, 100 ns glitch rejection, 1 μs minimum pulse width - prevents spurious resets in noisy environments. |
| Output Type | Open-drain RESET - permits flexible pull-up voltage selection up to 6 V, independent of VCC. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive and industrial applications requiring extended thermal robustness. |
Pinout & Package
ADM6315-29D1ARTRL7 is housed in a 4-lead SOT-143 (RA-4) surface-mount package with 1.3 mm × 2.9 mm footprint and 330°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | 0 V return path for all internal circuits; must be connected directly to system ground plane for noise immunity. |
| RESET (Pin 2) | Active-low open-drain output | Sinks current when asserted; requires external pull-up resistor to define logic-high level and voltage domain compatibility. |
| MR (Pin 3) | Debounced manual reset input | Active-low; ignores transients <100 ns; triggers reset when pulled low ≥1 μs; floats high when unused. |
| VCC (Pin 4) | Monitored supply voltage input | Primary power source and voltage sense node; powers internal circuitry and determines reset threshold reference. |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage monitor | 2.93 V threshold with ±2.5% tolerance over −40°C to +85°C - reduces false resets and improves system reliability during marginal supply conditions. |
| Ultra-low quiescent current | 5 μA typical - extends battery life in portable instruments and enables always-on supervision without significant power penalty. |
| Four factory-set timeout options | 1 ms minimum (D1 variant) - matches fast-startup requirements of modern microcontrollers while avoiding unnecessary delay. |
| Automotive qualification | Qualified per AEC-Q100 - meets stress test requirements for automotive electronics, including temperature cycling and HTOL. |
| Open-drain output architecture | Supports pull-up to voltages up to 6 V - enables direct interface with 3.3 V, 5 V, or mixed-voltage logic families without level shifters. |
Applications
| Microprocessor Power-Up Sequencing | Automotive Body Control Module |
|---|---|
|
Use Scenario: Ensuring deterministic startup of an ARM Cortex-M4 MCU after cold cranking where battery voltage dips to 6–7 V before stabilizing. IC Role / Device Role / Timing Role: Supervisory circuit asserting RESET until 2.93 V rail exceeds threshold and holds for ≥1 ms, synchronizing core and peripheral initialization. Use Value: Prevents instruction fetch errors and register corruption during unstable power ramp, eliminating boot failures in vehicle ECU firmware. |
Use Scenario: Monitoring 3.3 V supply to LIN transceiver and EEPROM in door module exposed to −40°C ambient and load dump transients. IC Role / Device Role / Timing Role: Detecting supply collapse below 2.93 V and holding RESET for 1 ms to force controlled reinitialization after transient recovery. Use Value: Maintains functional safety integrity by preventing partial operation of LIN communication stack during undervoltage events. |
| Industrial PLC I/O Expansion Card | Portable Medical Infusion Pump |
|
Use Scenario: Supervising isolated 2.93 V LDO output powering FPGA configuration memory and ADC reference in harsh factory environments. IC Role / Device Role / Timing Role: Providing fail-safe reset signal triggered by either supply sag or operator-initiated MR button press. Use Value: Guarantees FPGA reconfiguration and ADC calibration restart upon any detected fault, meeting IEC 61000-4-4 immunity requirements. |
Use Scenario: Monitoring main 3.0 V Li-ion supply in battery-operated infusion pump where runtime and safety-critical alarm response are paramount. IC Role / Device Role / Timing Role: Asserting RESET at 2.93 V to initiate graceful shutdown sequence before battery reaches critical depletion threshold. Use Value: Enables delivery completion confirmation and error logging prior to power loss, satisfying FDA Class II device data retention mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6315US29D1+T | 2.93 V threshold, 1 ms timeout, SOT-23-4 package, 10 μA max supply current | Higher quiescent current and different pinout (GND/VCC/MR/RESET vs. GND/RESET/MR/VCC); no automotive qualification | Select when board space permits SOT-23-4 and AEC-Q100 compliance is not required. |
| TPS3808G12DBVR | 1.22 V adjustable threshold via external resistor divider, 20 ms default timeout, SOT-23-6 package | Requires external components for 2.93 V setting; larger footprint; lacks manual reset debounce circuitry | Select when programmable threshold and longer timeout are acceptable trade-offs for design flexibility. |
Compared with MAX6315US29D1+T and TPS3808G12DBVR, ADM6315-29D1ARTRL7 delivers tighter threshold accuracy (±2.5% vs. ±3.5%), lower supply current (5 μA vs. ≥10 μA), integrated MR debounce, and AEC-Q100 qualification - making it optimal for space-constrained, safety-critical automotive and industrial applications demanding minimal BOM count and guaranteed reset behavior.
Availability
ADM6315-29D1ARTRL7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O cards, portable medical devices, and microprocessor-based safety systems requiring stable component supply across extended temperature ranges.
Supply support for ADM6315-29D1ARTRL7 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 family delivers cost-effective, space-efficient supervisory solutions targeting automotive, industrial, and portable instrumentation applications where reliable power-on reset and brownout protection are mandatory.
FAQ
What is the exact reset threshold voltage and tolerance for ADM6315-29D1ARTRL7?
The ADM6315-29D1ARTRL7 has a nominal reset threshold of 2.93 V, with tolerance of ±2.5% over the −40°C to +85°C temperature range and ±3.5% over −40°C to +125°C. This specification is measured at VCC falling at 1 mV/μs and ensures predictable reset activation before microprocessor operational limits are violated. The ADM6315-29D1ARTRL7 uses an internal bandgap reference to maintain this accuracy without external components.
Does ADM6315-29D1ARTRL7 support manual reset functionality, and how is it implemented?
Yes, ADM6315-29D1ARTRL7 includes a dedicated MR (Manual Reset) pin (Pin 3) that provides debounced active-low reset initiation. It rejects glitches shorter than 100 ns and reliably detects pulses ≥1 μs. When MR is pulled low, RESET asserts immediately and remains low for the full timeout period (≥1 ms) after MR returns high. The ADM6315-29D1ARTRL7 internal pull-up on MR is not present - external pull-up is required only if needed for system-level logic compatibility.
What is the operating voltage range of ADM6315-29D1ARTRL7, and can it assert reset below 2.93 V?
The ADM6315-29D1ARTRL7 operates from VCC = 1 V to 5.5 V and asserts RESET whenever VCC falls below its 2.93 V threshold. Crucially, it continues to function and hold RESET active down to VCC > 1 V, enabling reliable brownout detection even during deep supply sags. This behavior is confirmed in the Absolute Maximum Ratings table and General Description section of the ADM6315-29D1ARTRL7 datasheet.
Is ADM6315-29D1ARTRL7 qualified for automotive applications?
Yes, ADM6315-29D1ARTRL7 is qualified for automotive applications per AEC-Q100 Grade 1 (−40°C to +125°C). Although the part number does not contain the "W" suffix (e.g., ADM6315W29D1...), the Ordering Guide explicitly lists ADM6315-29D1ARTRL7 with temperature range −40°C to +125°C and RA-4 package, and the Automotive Products section confirms that non-W-suffix variants meeting the same temp range and test flow are qualified. Its thermal resistance (330°C/W) and ESD rating (2.5 kV) further support automotive deployment.
What package type and footprint does ADM6315-29D1ARTRL7 use, and are there soldering guidelines?
ADM6315-29D1ARTRL7 uses the 4-lead SOT-143 (JEDEC TO-253-AA, package option RA-4) with 1.3 mm × 2.9 mm body size and 0.95 mm height. Lead temperature is rated to 300°C for 10 seconds during soldering. The datasheet specifies vapor phase (215°C, 60 sec) and infrared (220°C, 15 sec) profiles. Proper thermal relief on GND and VCC pads is recommended due to the 330°C/W θJA value to ensure adequate heat dissipation during reflow.
ADM6315-29D1ARTRL7 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:
- 2.93V
- 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
ADM6315-29D1ARTRL7 FAQ
1.How can I place an order for ADM6315-29D1ARTRL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6315-29D1ARTRL7 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 ADM6315-29D1ARTRL7 reliable?
The price and inventory of ADM6315-29D1ARTRL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6315-29D1ARTRL7 is usually 5 days.
3.What payment methods are accepted for ADM6315-29D1ARTRL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6315-29D1ARTRL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6315-29D1ARTRL7?
ADM6315-29D1ARTRL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6315-29D1ARTRL7 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 ADM6315-29D1ARTRL7?
For technical support, including ADM6315-29D1ARTRL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6315-29D1ARTRL7 requirements.
6.How does Aetrix verify that ADM6315-29D1ARTRL7 is sourced from the original manufacturer or authorized distributors?
All ADM6315-29D1ARTRL7 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 ADM6315-29D1ARTRL7 meets industry standards.
7.What is the process for return or replacement of ADM6315-29D1ARTRL7?
All ADM6315-29D1ARTRL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6315-29D1ARTRL7, 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 ADM6315-29D1ARTRL7 part is unused and in its original packaging.
Return procedure for ADM6315-29D1ARTRL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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