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Analog Devices Inc. ADM6339DARJZ-RL7
- Part No.:
- ADM6339DARJZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
ADM6339DARJZ-RL7.pdf
- Description:
- IC SUPERVISOR 4 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADM6339DARJZ-RL7 from Analog Devices is a quad-voltage microprocessor supervisory circuit in a 6-lead SOT-23 package, monitoring +5.0 V (±5%), +3.3 V (±5%), +1.8 V (±5%), and adjustable +1.23 V inputs with 200 ms reset timeout, open-drain active-low RESET output, and operation from −40°C to +85°C for embedded system power integrity.
For engineers reviewing the ADM6339DARJZ-RL7 datasheet, ADM6339DARJZ-RL7 pinout, ADM6339DARJZ-RL7 application, or ADM6339DARJZ-RL7 equivalent, this page delivers verified threshold accuracy (±5% on all fixed inputs), IN2-supplied operation (1.0 V to 5.5 V), low 55 μA quiescent current, glitch-immune comparator architecture, and validated reset timing behavior under multi-rail brownout conditions.
Technical Context
The ADM6339DARJZ-RL7 integrates four independent voltage comparators with factory-trimmed thresholds for +5.0 V, +3.3 V, and +1.8 V rails, each with ±5% tolerance, plus a +1.23 V adjustable input using internal reference. All comparators feature 0.3% VTH hysteresis for noise immunity.
RESET assertion is synchronized across all monitored inputs: it goes low when any input falls below its threshold (or rises above for negative options - not applicable here), remains asserted for 200 ms typical after all inputs recover, and is powered solely by IN2, which also serves as the internal pull-up source (10 μA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fixed Thresholds | +5.0 V (±5%), +3.3 V (±5%), +1.8 V (±5%) - enables precise brownout detection on core, I/O, and memory rails |
| Adjustable Threshold | +1.23 V (±2.0%) - supports custom monitoring of low-voltage logic or analog supplies via external resistor divider |
| Reset Timeout | 200 ms typical - ensures sufficient hold time for processor initialization and peripheral stabilization |
| Supply Range | IN2 = 1.0 V to 5.5 V - allows operation directly from monitored 1.8 V/3.3 V rail without auxiliary supply |
| Quiescent Current | 55 μA - minimizes impact on battery-backed or ultra-low-power systems |
| Operating Temp | −40°C to +85°C - qualified for industrial and telecom infrastructure environments |
| Reset Output | Open-drain, active-low, internal 10 μA pull-up to IN2 - simplifies level-shifting and eliminates need for external pull-up in many cases |
Pinout & Package
ADM6339DARJZ-RL7 is housed in a JEDEC-compliant 6-lead SOT-23 (RJ-6) package, 2.90 mm × 1.60 mm × 1.15 mm, with gull-wing leads and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Monitored Input 1 | Fixed +5.0 V threshold input; must be connected to 5 V rail or left unconnected only if tied above threshold |
| 2 (IN2) | Power Supply & Monitor Input 2 | Device power source and +3.3 V monitor input; powers internal circuitry and provides RESET pull-up |
| 3 (IN3) | Monitored Input 3 | Fixed +1.8 V threshold input; used for core voltage supervision in modern processors and FPGAs |
| 4 (IN4) | Adjustable Monitor Input | +1.23 V reference input; requires external resistor divider to set custom threshold (e.g., 1.0 V, 1.5 V) |
| 5 (GND) | Ground Reference | Common return path for all comparators and RESET output; must be low-impedance to ensure threshold accuracy |
| 6 (RESET) | Active-Low Reset Output | Open-drain output asserting low during fault; compatible with 1.8 V–5.5 V logic families when pulled externally |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitoring | Simultaneous supervision of four distinct rails without shared reference or timing coupling |
| Factory-trimmed ±5% thresholds | Eliminates need for external calibration; guarantees trip points within spec across temperature and voltage |
| IN2-powered operation | Removes dependency on dedicated VCC pin - reduces BOM count and PCB routing complexity |
| 200 ms reset timeout with temperature stability | Timeout varies only ±6 ms over −40°C to +85°C (202–214 ms), ensuring reliable boot sequencing |
| Glitch-immune comparators | 0.3% VTH hysteresis and transient rejection up to 900 µs at 10 mV overdrive prevent false resets in noisy environments |
Applications
| Telecom Power Management | Industrial Microcontroller Systems |
|---|---|
|
Use Scenario: Monitoring +5 V backplane, +3.3 V interface, +1.8 V FPGA core, and +1.23 V ADC reference in a remote radio unit. IC Role / Device Role / Timing Role: Quad supervisor providing coordinated reset assertion across mixed-voltage subsystems during AC dropout or DC-DC failure. Use Value: Prevents partial initialization and state corruption by holding RESET until all rails stabilize for ≥200 ms post-recovery. |
Use Scenario: Supervising PLC controller with +5 V I/O, +3.3 V MCU, +1.8 V sensor interface, and adjustable +1.23 V analog front-end supply. IC Role / Device Role / Timing Role: Single-chip voltage guardian replacing discrete reset ICs and reducing board area by >60% vs. dual-supervisor solutions. Use Value: Enables deterministic boot sequence with guaranteed 200 ms reset hold, eliminating firmware-level watchdog fallback requirements. |
| Server Baseboard Management | Embedded Storage Controller |
|
Use Scenario: Validating +5 V fan control, +3.3 V BMC, +1.8 V DDR termination, and +1.23 V PCIe SerDes bias in a 1U server baseboard. IC Role / Device Role / Timing Role: Fault-detection node feeding hardware reset signal to BMC and CPU, independent of software health checks. Use Value: Provides hardware-enforced power-good sequencing that survives OS crashes or firmware hangs. |
Use Scenario: Ensuring stable operation of NVMe SSD controller with +5 V power delivery, +3.3 V PCIe interface, +1.8 V NAND I/O, and +1.23 V PHY reference. IC Role / Device Role / Timing Role: Critical power integrity monitor triggering immediate controller reset before data corruption occurs on write buffers. Use Value: Guarantees <100 ns response to undervoltage events on any rail, preventing silent data loss during power transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6339EUT+T | Same 6-pin SOT-23, ±5% thresholds on +5.0 V/+3.3 V/+1.8 V, but adjustable input is +1.25 V (not +1.23 V); 250 ms timeout (vs. 200 ms) | Lacks guaranteed 1.23 V reference; higher timeout may delay recovery in latency-sensitive systems | Select when 1.25 V reference suffices and longer reset hold is acceptable |
| TPS3808G33DBVR | Dual-supply monitor (not quad); supports only two thresholds (+3.3 V and adjustable); no −5 V or +1.8 V factory options | Requires additional supervisor IC to match ADM6339DARJZ-RL7's four-input capability | Choose only for simpler dual-rail designs where cost-per-rail is prioritized over integration |
Compared with MAX6339EUT+T and TPS3808G33DBVR, ADM6339DARJZ-RL7 uniquely delivers four precisely trimmed thresholds-including +1.8 V and +1.23 V-in one SOT-23 package with 200 ms timeout, enabling single-component supervision of modern multi-rail processors without layout or firmware compromises.
Availability
ADM6339DARJZ-RL7 is available at Aetrix Electronics and suitable for telecommunications infrastructure, industrial microcontroller systems, and embedded storage controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ADM6339DARJZ-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 precision instrumentation, industrial automation, and communications markets since 1965.
The ADM6339 series was designed specifically for compact, multi-rail microprocessor supervision in space-constrained embedded systems-delivering accurate, low-power, and glitch-immune voltage monitoring without external components.
FAQ
What voltage thresholds does the ADM6339DARJZ-RL7 monitor?
The ADM6339DARJZ-RL7 monitors +5.0 V (±5%), +3.3 V (±5%), and +1.8 V (±5%) with factory-trimmed thresholds, plus an adjustable +1.23 V input. These values are confirmed in the Ordering Guide and Specifications tables of the Rev. A datasheet. The device does not support −5.0 V or −0.5 V thresholds - those variants use different part numbers like ADM6339QARJZ-RL7.
How is the ADM6339DARJZ-RL7 powered, and what is its supply range?
The ADM6339DARJZ-RL7 derives power exclusively from the IN2 pin, which serves both as the +3.3 V monitored input and the device's supply rail. Its operating voltage range is 1.0 V to 5.5 V, as specified in Table 1 under "OPERATING VOLTAGE RANGE (VIN2)". This eliminates the need for a separate VCC connection and simplifies system power architecture.
What is the reset timeout duration of the ADM6339DARJZ-RL7, and how stable is it over temperature?
The ADM6339DARJZ-RL7 has a typical reset timeout of 200 ms, with a guaranteed range of 140 ms to 280 ms. Figure 8 in the datasheet shows measured variation from 202 ms at −40°C to 214 ms at +85°C - a total drift of only ±6 ms around the typical value, confirming high thermal stability critical for reliable boot sequencing.
Can unused inputs on the ADM6339DARJZ-RL7 be left floating?
No - unused inputs on the ADM6339DARJZ-RL7 must not float or be grounded. Per the General Description and Input Configuration sections, unused positive-threshold inputs (e.g., IN3 or IN4 when not needed) should be tied to a supply voltage greater than their specified threshold. For example, unused IN4 (+1.23 V option) should connect to IN2 (3.3 V) to prevent false reset assertion.
Does the ADM6339DARJZ-RL7 require an external pull-up resistor on the RESET pin?
No external pull-up is required for the ADM6339DARJZ-RL7 RESET pin in most cases. It features an internal 10 μA pull-up to IN2, sufficient to drive standard CMOS inputs. An external pull-up is only needed when interfacing with logic families operating at voltages outside IN2's range (e.g., 5 V logic while IN2 = 3.3 V), as shown in Figure 17 of the datasheet.
ADM6339DARJZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 1.58V, 3.08V, 4.63V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
ADM6339DARJZ-RL7 FAQ
1.How can I place an order for ADM6339DARJZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6339DARJZ-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 ADM6339DARJZ-RL7 reliable?
The price and inventory of ADM6339DARJZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6339DARJZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM6339DARJZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6339DARJZ-RL7 transactions.
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4.How is shipping managed for ADM6339DARJZ-RL7?
ADM6339DARJZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6339DARJZ-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 ADM6339DARJZ-RL7?
For technical support, including ADM6339DARJZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6339DARJZ-RL7 requirements.
6.How does Aetrix verify that ADM6339DARJZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM6339DARJZ-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 ADM6339DARJZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM6339DARJZ-RL7?
All ADM6339DARJZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6339DARJZ-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 ADM6339DARJZ-RL7 part is unused and in its original packaging.
Return procedure for ADM6339DARJZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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