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Analog Devices Inc. ADM6319C46ARJZ-RL7
- Part No.:
- ADM6319C46ARJZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ADM6319C46ARJZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,879
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Product details
Overview
ADM6319C46ARJZ-RL7 from Analog Devices is a supervisory circuit with manual reset input and dual push-pull reset outputs, designed for microprocessor supply voltage monitoring. It features a 4.63 V reset threshold (±2.5% over −40°C to +85°C), 140 ms minimum reset timeout, no watchdog timer, and operates down to VCC = 1 V with 5 µA typical supply current. It is used in embedded controllers where reliable power-on reset and user-initiated recovery are required.
For engineers reviewing the ADM6319C46ARJZ-RL7 datasheet, ADM6319C46ARJZ-RL7 pinout, ADM6319C46ARJZ-RL7 application, or ADM6319C46ARJZ-RL7 equivalent, key selection criteria include reset threshold accuracy, dual active-low/active-high output drive capability, absence of watchdog function, industrial temperature support, and SOT-23 footprint compatibility in space-constrained systems.
Technical Context
The ADM6319C46ARJZ-RL7 implements a precision bandgap-based voltage reference and comparator to monitor VCC against a factory-trimmed 4.63 V threshold. Its dual push-pull RESET and RESET outputs are guaranteed valid down to VCC = 1 V, enabling robust reset assertion during brownout conditions.
It includes an internal 52 kΩ pull-up on the MR pin, debounced manual reset logic with 1 µs minimum pulse width, and glitch-immune detection of fast VCC transients. The device lacks watchdog functionality and is optimized for applications requiring deterministic reset control without code-execution supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63 V ±2.5% over −40°C to +85°C - ensures reliable detection of 5 V rail undervoltage before system instability occurs. |
| Reset Timeout | 140 ms minimum - guarantees sufficient hold time for microprocessor initialization after power stabilization. |
| Supply Current | 5 µA typical at 3.6 V - enables integration into battery-powered portable equipment without significant quiescent load. |
| Operating Voltage | 1 V to 5.5 V - supports valid reset output assertion even during deep brownout, critical for fail-safe operation. |
| Output Type | Dual push-pull: active-low RESET and active-high RESET - eliminates need for external pull resistors and supports direct interface to diverse MCU reset inputs. |
| MR Input | Internal 52 kΩ pull-up, 1 µs minimum pulse width - allows simple push-button reset with minimal external components and noise immunity. |
Pinout & Package
ADM6319C46ARJZ-RL7 is housed in a 5-lead SOT-23 package (JEDEC MO-178-AA compliant), with 1.3 mm × 2.9 mm footprint and 1.15 mm height, suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low push-pull reset output | Drives low to assert reset; sinks up to 1.2 mA at VCC ≥ 2.7 V; valid down to VCC = 1 V. |
| 2: GND | Ground reference | Primary return path for internal circuitry and output stage; must be low-impedance connection. |
| 3: RESET | Active-high push-pull reset output | Drives high to assert reset; sources up to 500 µA at VCC ≥ 2.7 V; complements active-low output for flexible MCU interface. |
| 4: VCC | Monitored power supply input | Input voltage source being supervised; also powers internal circuitry; absolute max rating is +6 V. |
| 5: MR | Manual reset input | Active-low input with internal 52 kΩ pull-up; asserts both RESET outputs when pulled low ≥1 µs; immune to <100 ns glitches. |
Key Features
| Feature | Design Value |
|---|---|
| Dual push-pull reset outputs | Simultaneous active-low and active-high signals eliminate external level-shifting or pull resistors for mixed-voltage MCU designs. |
| Guaranteed reset validity to VCC = 1 V | Ensures deterministic reset assertion during severe brownout, preventing undefined processor states in low-VCC failure modes. |
| Factory-trimmed 4.63 V threshold | Meets tight tolerance requirements for 5 V systems without external calibration, reducing BOM count and design validation effort. |
| Integrated MR pull-up and debounce | Enables single-component push-button reset implementation with no external R/C network, saving board area and cost. |
| Industrial temperature range | Rated for −40°C to +85°C operation, supporting deployment in automotive body electronics, industrial PLCs, and outdoor IoT gateways. |
Applications
| Industrial Controller Reset Management | Portable Medical Device Power Supervision |
|---|---|
Use Scenario: A programmable logic controller monitors 5 V backplane voltage and requires coordinated reset assertion to multiple subsystems during cold start or brownout. IC Role / Device Role / Timing Role: ADM6319C46ARJZ-RL7 acts as primary voltage supervisor, asserting both RESET (low) and RESET (high) simultaneously to initialize FPGA, microcontroller, and analog front-end ICs. Use Value: Dual-output architecture eliminates need for external inverters or logic gates, reducing component count and timing skew between reset domains. | Use Scenario: A handheld blood glucose meter uses a 3.7 V Li-ion battery with buck-boost regulator generating stable 5 V; system must guarantee safe shutdown and restart on voltage sag. IC Role / Device Role / Timing Role: ADM6319C46ARJZ-RL7 monitors regulated 5 V rail and triggers full-system reset via MR button or automatic undervoltage detection. Use Value: 5 µA quiescent current extends battery life in standby mode; 140 ms reset timeout accommodates slow regulator recovery without premature release. |
| Smart Energy Meter Brownout Protection | Automotive Body Control Module (BCM) |
Use Scenario: An electricity meter operating from split-phase AC with auxiliary 5 V DC supply must survive line sags and maintain accurate timekeeping and data integrity. IC Role / Device Role / Timing Role: ADM6319C46ARJZ-RL7 provides fail-safe reset signaling to the meter's real-time clock and flash memory controller during transient undervoltage events. Use Value: Valid reset output down to VCC = 1 V ensures RTC remains held in reset until backup capacitor discharges fully, preventing corrupted timestamp writes. | Use Scenario: A BCM in a 12 V vehicle electrical system uses a 5 V LDO to power its microcontroller; it must recover reliably after ignition cycling or alternator ripple. IC Role / Device Role / Timing Role: ADM6319C46ARJZ-RL7 supervises the 5 V LDO output and provides manual reset via dashboard service button for firmware updates or fault recovery. Use Value: Internal MR pull-up simplifies wiring harness design; industrial temp rating ensures operation across under-hood thermal extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326T462D+ | Single active-low push-pull output; 4.62 V threshold; 140 ms timeout; no RESET output | Lacks dual-output capability; requires external inverter for active-high reset signal | Select when only one reset polarity is needed and board space permits added logic. |
| TPS3808G33DBVR | Single active-low open-drain output; 3.3 V threshold; 200 ms timeout; includes watchdog | Requires external pull-up resistor; fixed 3.3 V threshold unsuitable for 5 V rail monitoring | Select only if redesigning for 3.3 V domain and watchdog functionality is required. |
Compared with MAX6326T462D+ and TPS3808G33DBVR, ADM6319C46ARJZ-RL7 uniquely delivers dual push-pull reset outputs at 4.63 V with no watchdog overhead-enabling simpler, more deterministic reset control in 5 V microprocessor systems without added components or timing uncertainty.
Availability
ADM6319C46ARJZ-RL7 is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, smart energy meters, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for ADM6319C46ARJZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM63xx family was engineered specifically for microprocessor-based systems needing precise, low-power supply supervision with configurable reset behavior-targeting reliability-critical applications in industrial, medical, and automotive markets.
FAQ
What is the reset threshold voltage of ADM6319C46ARJZ-RL7 and how stable is it over temperature?
The ADM6319C46ARJZ-RL7 has a nominal reset threshold of 4.63 V, with ±2.5% tolerance over the full industrial temperature range (−40°C to +85°C). Its temperature coefficient is 40 ppm/°C, ensuring predictable trip-point drift across operating conditions. This stability eliminates need for external calibration in 5 V system designs.
Does ADM6319C46ARJZ-RL7 include a watchdog timer function?
No, ADM6319C46ARJZ-RL7 does not include a watchdog timer. Per the device selection table and ordering guide, ADM6319 variants are defined by "No" watchdog input. Its function is limited to voltage monitoring and manual reset-making it ideal for applications where code-execution supervision is handled separately or unnecessary.
How do the dual RESET and RESET outputs of ADM6319C46ARJZ-RL7 interface with different microcontroller reset inputs?
The ADM6319C46ARJZ-RL7 provides simultaneous active-low RESET and active-high RESET push-pull outputs. This allows direct connection to MCUs requiring either polarity without external components: RESET drives low to satisfy standard active-low reset pins, while RESET drives high to meet active-high requirements (e.g., some ARM Cortex-M parts). Both outputs remain valid down to VCC = 1 V.
What is the minimum pulse width required on the MR pin to trigger a reset in ADM6319C46ARJZ-RL7?
The MR pin of ADM6319C46ARJZ-RL7 requires a minimum low-going pulse width of 1 µs to assert reset. This specification is guaranteed over temperature and supply voltage. The internal 52 kΩ pull-up ensures the pin defaults high when unconnected, and integrated debounce rejects transients shorter than 100 ns.
Is ADM6319C46ARJZ-RL7 compatible with lead-free reflow processes?
Yes, ADM6319C46ARJZ-RL7 is RoHS-compliant and qualified for lead-free reflow soldering. The "Z" suffix in the part number denotes RoHS compliance, and the SOT-23 package (RJ-5) supports standard JEDEC J-STD-020 moisture sensitivity level 1 handling and reflow profiles up to 260°C peak temperature.
ADM6319C46ARJZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.63V
- Output:
- Push-Pull, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
ADM6319C46ARJZ-RL7 FAQ
1.How can I place an order for ADM6319C46ARJZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6319C46ARJZ-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 ADM6319C46ARJZ-RL7 reliable?
The price and inventory of ADM6319C46ARJZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6319C46ARJZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM6319C46ARJZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6319C46ARJZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6319C46ARJZ-RL7?
ADM6319C46ARJZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6319C46ARJZ-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 ADM6319C46ARJZ-RL7?
For technical support, including ADM6319C46ARJZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6319C46ARJZ-RL7 requirements.
6.How does Aetrix verify that ADM6319C46ARJZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM6319C46ARJZ-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 ADM6319C46ARJZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM6319C46ARJZ-RL7?
All ADM6319C46ARJZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6319C46ARJZ-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 ADM6319C46ARJZ-RL7 part is unused and in its original packaging.
Return procedure for ADM6319C46ARJZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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