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Analog Devices Inc. ADM6339CARJZ-RL7
- Part No.:
- ADM6339CARJZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
ADM6339CARJZ-RL7.pdf
- Description:
- IC SUPERVISOR 4 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADM6339CARJZ-RL7 from Analog Devices is a quad-voltage microprocessor supervisory circuit that monitors +5.0 V, +3.3 V, +1.8 V, and an adjustable +1.23 V threshold with ±10% tolerance, delivers 200 ms typical reset timeout, features open-drain active-low RESET output with 10 μA internal pull-up to IN2, and operates across −40°C to +85°C in telecom and server power sequencing.
For engineers reviewing the ADM6339CARJZ-RL7 datasheet, ADM6339CARJZ-RL7 pinout, ADM6339CARJZ-RL7 application, or ADM6339CARJZ-RL7 equivalent, key selection considerations include factory-set voltage thresholds per input channel, guaranteed RESET validity down to IN1 or IN2 = 1 V, low 55 μA quiescent current, glitch-immune comparator architecture, and SOT-23 package compatibility with space-constrained embedded power management layouts.
Technical Context
The ADM6339CARJZ-RL7 integrates four independent voltage comparators with pretrimmed thresholds: IN1 = +5.0 V (±10%), IN2 = +3.3 V (±10%), IN3 = +1.8 V (±10%), and IN4 = adjustable +1.23 V (±2.0%). Each comparator includes 0.3% VTH hysteresis for noise immunity and supports transient rejection up to 900 µs at 10 mV overdrive.
RESET assertion is synchronized across all inputs: output remains low until all monitored voltages exceed their respective thresholds, then holds low for 200 ms (140–280 ms min–max) before releasing. The device draws power solely from IN2, which also serves as the internal pull-up reference for the open-drain RESET output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Monitored Voltages | +5.0 V (IN1), +3.3 V (IN2), +1.8 V (IN3), +1.23 V adjustable (IN4) |
| Threshold Tolerance | ±10% for fixed thresholds; ±2.0% for +1.23 V adjustable option |
| Reset Timeout | 200 ms typical; ensures stable CPU boot after full rail stabilization |
| Supply Input | IN2 powers entire IC; valid operation from 1.0 V to 5.5 V |
| Quiescent Current | 55 μA typical; enables always-on supervision in low-power systems |
| Operating Temperature | −40°C to +85°C; qualified for industrial and telecom environments |
| RESET Output Type | Open-drain with 10 μA internal pull-up to IN2; eliminates need for external pull-up in many logic interfaces |
Pinout & Package
ADM6339CARJZ-RL7 is housed in a 6-lead SOT-23 (RJ-6) package compliant with JEDEC MO-178-AB, measuring 2.90 mm × 1.60 mm × 1.15 mm, with gull-wing leads and tape-and-reel packaging (RL7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN1 | Monitored Input Voltage 1 | Fixed +5.0 V threshold input; asserts RESET if voltage drops below 4.50 V (−10%) |
| 2 - IN2 | Monitored Input Voltage 2 / Power Supply | Device power source and +3.3 V monitor; RESET pull-up reference; must be powered for operation |
| 3 - IN3 | Monitored Input Voltage 3 | Fixed +1.8 V threshold input; asserts RESET if voltage drops below 1.53 V (−10%) |
| 4 - IN4 | Monitored Input Voltage 4 | Adjustable +1.23 V threshold input; supports resistor-divider configuration for custom trip points |
| 5 - GND | Ground Reference | Common return path for all comparators and RESET driver; requires low-impedance connection |
| 6 - RESET | Active-Low Reset Output | Open-drain output; sinks ≥2 mA at 0.4 V; remains valid while IN1 or IN2 ≥1 V |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitoring | Enables single-chip supervision of core, I/O, memory, and auxiliary rails in multi-rail systems |
| Factory-trimmed thresholds with ±10% accuracy | Eliminates external resistor networks for standard supply rails, reducing BOM count and layout area |
| Adjustable +1.23 V input with ±2.0% accuracy | Supports precise monitoring of low-voltage logic rails (e.g., 1.2 V FPGA cores) via simple resistor divider |
| 200 ms reset timeout with temperature stability | Guarantees minimum reset pulse width across −40°C to +85°C (202–214 ms range) |
| Glitch-immune comparators (0.3% hysteresis) | Rejects transients ≤900 µs without false triggering, critical in noisy power environments |
| 1 V minimum supply validity | Allows reliable reset assertion even during brown-out conditions where IN1 or IN2 dips to 1 V |
Applications
| Telecom Line Cards | Industrial PLC Controllers |
|---|---|
Use Scenario: Monitoring +5 V backplane, +3.3 V FPGA I/O, +1.8 V DSP core, and +1.23 V ADC reference on dense line card PCBs. IC Role / Device Role / Timing Role: Quad-supervisory circuit providing synchronized system reset upon any rail failure, with 200 ms timeout ensuring clean processor initialization. Use Value: Reduces component count vs. discrete supervisors; ±10% threshold accuracy avoids unnecessary resets during nominal rail ripple. |
Use Scenario: Supervising isolated +5 V control logic, +3.3 V microcontroller, +1.8 V sensor interface, and adjustable +1.23 V analog front-end supply in harsh industrial enclosures. IC Role / Device Role / Timing Role: Single-point fault detection and reset generation across safety-critical subsystems, operating reliably from −40°C to +85°C. Use Value: Low 55 μA quiescent current extends battery backup runtime; 1 V minimum IN1/IN2 validity prevents spurious resets during undervoltage recovery. |
| Enterprise SSD Controllers | Network Switch ASIC Power Sequencing |
Use Scenario: Validating +5 V PCIe interface, +3.3 V NAND controller, +1.8 V DRAM interface, and +1.23 V PHY bias supply before NVMe command execution. IC Role / Device Role / Timing Role: Ensures all storage subsystem voltages are stable prior to firmware load, using programmable timeout and rail-specific thresholds. Use Value: Adjustable IN4 threshold allows precise tracking of 1.2 V DDR interface rails via resistor divider, improving margin over generic 1.25 V options. |
Use Scenario: Coordinating power-up sequence of +5 V management MCU, +3.3 V switch fabric, +1.8 V SerDes, and +1.23 V reference clock generator in modular switches. IC Role / Device Role / Timing Role: Centralized reset arbiter that delays ASIC enable until all rails meet specification, preventing latch-up or configuration errors. Use Value: Open-drain RESET with internal 10 μA pull-up simplifies level-shifting to diverse logic families without external components. |
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 package; fixed thresholds +5.0 V/+3.3 V/+2.5 V/+1.8 V; no adjustable input; ±1.5% threshold accuracy | Lacks adjustable IN4; better accuracy on fixed rails but inflexible for nonstandard supplies | Select when monitoring only standard rails and higher threshold precision is required over configurability |
| TPS3808G33DBVR | Single-supply supervisor (only +3.3 V); 200 ms timeout; 35 μA IQ; SOT-23-6; no quad monitoring capability | Cannot replace quad supervision; requires three additional devices for equivalent coverage | Use only for cost-sensitive single-rail applications where multi-rail supervision is handled separately |
Compared with MAX6339EUT+T and TPS3808G33DBVR, the ADM6339CARJZ-RL7 uniquely combines quad monitoring, one adjustable threshold, and guaranteed 1 V minimum supply validity-making it optimal for compact, multi-rail systems requiring both flexibility and robustness under brown-out conditions.
Availability
ADM6339CARJZ-RL7 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial control, and enterprise storage applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ADM6339CARJZ-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, communications, and automotive markets.
The ADM6339CARJZ-RL7 belongs to Analog Devices' microprocessor supervisory product line, engineered specifically for reliable, low-power, multi-rail voltage monitoring in space-constrained embedded systems with demanding environmental requirements.
FAQ
What voltage thresholds does the ADM6339CARJZ-RL7 monitor?
The ADM6339CARJZ-RL7 monitors +5.0 V on IN1, +3.3 V on IN2, +1.8 V on IN3, and an adjustable +1.23 V threshold on IN4-all with ±10% tolerance for fixed rails and ±2.0% for the adjustable input. These values are factory-trimmed and documented in the Ordering Guide for the ADM6339CARJZ-RL7 variant.
Does the ADM6339CARJZ-RL7 require an external pull-up resistor on the RESET pin?
No, the ADM6339CARJZ-RL7 includes a 10 μA internal pull-up to IN2 on the open-drain RESET output, eliminating the need for an external pull-up in most interfacing scenarios. An external pull-up may be added only if interfacing with a logic supply different from IN2, but the internal circuitry prevents reverse current flow.
What is the minimum supply voltage required for the ADM6339CARJZ-RL7 to assert a valid RESET signal?
The ADM6339CARJZ-RL7 guarantees RESET output validity as long as either IN1 or IN2 remains ≥1 V. This feature enables reliable reset assertion during brown-out conditions where main supplies dip temporarily, a key reliability advantage of the ADM6339CARJZ-RL7 in industrial and telecom applications.
How does the ADM6339CARJZ-RL7 handle noise or voltage glitches on monitored inputs?
The ADM6339CARJZ-RL7 incorporates 0.3% VTH hysteresis on all comparators and supports rejection of transients up to 900 µs at 10 mV overdrive, as verified in Figure 6 of the datasheet. Adding a 0.1 µF capacitor from IN2 to GND further enhances noise immunity without affecting threshold accuracy.
Can unused inputs on the ADM6339CARJZ-RL7 be left floating?
No-unused inputs on the ADM6339CARJZ-RL7 must not float or be grounded. For positive-threshold inputs like IN3 or IN4 (when configured for +1.23 V), connect directly to IN2. For negative-threshold variants (not applicable to ADM6339CARJZ-RL7), tie to a more negative supply. Floating inputs risk false resets or increased current draw.
ADM6339CARJZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 1.58V, 2.93V, 4.38V, 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
ADM6339CARJZ-RL7 FAQ
1.How can I place an order for ADM6339CARJZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM6339CARJZ-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 ADM6339CARJZ-RL7 reliable?
The price and inventory of ADM6339CARJZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM6339CARJZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM6339CARJZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM6339CARJZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM6339CARJZ-RL7?
ADM6339CARJZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM6339CARJZ-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 ADM6339CARJZ-RL7?
For technical support, including ADM6339CARJZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM6339CARJZ-RL7 requirements.
6.How does Aetrix verify that ADM6339CARJZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM6339CARJZ-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 ADM6339CARJZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM6339CARJZ-RL7?
All ADM6339CARJZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM6339CARJZ-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 ADM6339CARJZ-RL7 part is unused and in its original packaging.
Return procedure for ADM6339CARJZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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