ADM6339OARJZ-RL7 Analog Devices Integrated Circuit (Other) In Stock
ADM6339OARJZ-RL7 is a 4-channel voltage supervisor and reset IC from Analog Devices with adjustable threshold, monitoring up to 4 supply rails in a compact 6-pin SOT-23 package. Ensures reliable microprocessor and system reset sequencing in multi-rail designs. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- ADM6339OARJZ-RL7 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-channel simultaneous voltage supervision with adjustable threshold enables monitoring of multiple supply rails from a single IC
- Compact 6-pin SOT-23 (RJ-6) package occupies minimal PCB space for multi-rail power-good supervision in space-constrained designs
- Dedicated voltage supervisor/reset architecture provides precise reset assertion and deassertion timing to prevent microprocessor lockup on power-up
Applications
The ADM6339OARJZ-RL7 is used in multi-rail embedded systems such as FPGAs, DSPs, and network processors that require all supply voltages to reach their regulated levels before the processor is released from reset. Its 4-channel design allows simultaneous monitoring of core, I/O, memory, and analog supply rails, preventing code execution from starting on a partially powered device. The adjustable threshold and compact SOT-23 package make it a flexible, space-efficient solution for power sequencing in telecom line cards, industrial PLCs, and SBC designs.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | RJ-6 |
| YTEOL | 0 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.115mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | -5,+1.23,3.3,5V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many supply rails can ADM6339OARJZ-RL7 monitor simultaneously, and why is multi-rail supervision important for FPGA designs?
The ADM6339OARJZ-RL7 monitors up to 4 independent supply rails simultaneously. Modern FPGAs typically require 3 to 5 distinct supply voltages (core, I/O bank, auxiliary, MGT) to power up within a specified sequence and voltage window. If any rail is absent or out of regulation during power-up, unintended latch-up or data corruption can occur. The 4-channel supervisor asserts the system reset until all 4 monitored rails reach their thresholds, preventing the FPGA from executing with an incomplete power supply.
What does the adjustable threshold feature of ADM6339OARJZ-RL7 allow designers to do that fixed-threshold supervisors cannot?
The adjustable threshold on ADM6339OARJZ-RL7 lets designers set the undervoltage trip point for each monitored rail using external resistive dividers. This allows a single part number to supervise non-standard supply voltages such as 1.0 V, 1.8 V, 2.5 V, or 3.3 V rails without stocking multiple fixed-threshold supervisor variants. For a 4-rail processor board combining a 1.0 V core, 1.8 V DDR, 2.5 V analog, and 3.3 V I/O supply, a single ADM6339OARJZ-RL7 with 4 resistor dividers replaces what would otherwise require 4 separate fixed-threshold supervisor ICs.
What package does the ADM6339OARJZ-RL7 use and how does it support compact multi-rail power supervision layouts?
The ADM6339OARJZ-RL7 is housed in the RJ-6 package, a 6-pin SOT-23 measuring approximately 2.9 mm x 1.6 mm. Despite monitoring 4 voltage channels, the tiny SOT-23 footprint keeps the total area including 8 resistors (2 per channel) under 50 mm2, which is significantly smaller than placing 4 individual 2-pin voltage detectors. This makes it practical to fit multi-rail supervision on congested power management layers of compact embedded boards.
In what way is ADM6339OARJZ-RL7 different from a simple reset IC, and when should it be chosen over a single-rail supervisor?
A simple single-rail reset IC monitors only one supply and generates a reset pulse when that rail drops below a fixed threshold. The ADM6339OARJZ-RL7 extends this to 4 independently adjustable channels with an AND-logic output that holds reset asserted until all 4 rails are valid simultaneously. This is essential in multi-processor systems where a microcontroller and its DDR memory, flash, and analog subsystem each have their own supply, and where partial power-up can cause undefined bus states, memory corruption, or firmware startup failures that a single-rail supervisor cannot prevent.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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