MAX5900NNEUT+ Analog Devices Integrated Circuit (SOT23 (6-Pin)) In Stock
Analog Devices MAX5900NNEUT+ is a single-channel hot-swap controller designed for -48 V telecom power systems, operating from -9 V to -100 V negative supply with adjustable current and voltage thresholds. Housed in a compact 6-pin SOT-23 package for space-efficient board-level power management.
- Manufacturer
- Analog Devices
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- MAX5900NNEUT+ 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
- Single-channel hot-swap control for -48 V negative telecom supply rails
- Wide operating range of -9 V to -100 V for versatile negative supply systems
- Adjustable over-current and under-voltage thresholds via external resistors
- Inrush current limiting to protect backplane connectors during board insertion
- Compact 6-pin SOT-23 package minimizing PCB footprint
- JESD-609 e3 compliant lead-free packaging
Applications
MAX5900NNEUT+ is widely used in telecom line cards, -48 V central office equipment, and network switching infrastructure where hot-swappable boards must be inserted and removed without disrupting the live -48 V power bus. It also finds application in industrial negative-rail power management and high-density rack-mount servers requiring controlled board insertion current.
Specifications
| Manufacturer Package Code | 6-SOT_23-N/A |
| Date Of Intro | 2001-07-21 |
| YTEOL | 9 |
| Additional Feature | IT OPERATES FROM A -9V TO -100V NEGATIVE SUPPLY |
| Adjustable Threshold | YES |
| Analog IC - Other Type | HOT SWAP CONTROLLER |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Neg Supply Voltage-Nom (Vsup) | -48 V |
| Number of Channels | 1 |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 1.3mA |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Over what supply voltage range does MAX5900NNEUT+ operate for negative-rail telecom power systems?
MAX5900NNEUT+ operates from -9 V to -100 V on a negative supply, making it compatible with the standard -48 V telecom bus as well as higher-voltage -72 V systems. A single device covers the full range of negative-rail telecom infrastructure without requiring separate controller variants.
How does MAX5900NNEUT+ limit inrush current when a line card is inserted into a live -48 V backplane?
The controller uses an external N-channel MOSFET and a sense resistor to ramp the gate voltage at a controlled rate, limiting inrush current to a user-defined threshold. This protects backplane connectors and bulk capacitors from current spikes that can exceed 10 A during hot insertion if uncontrolled.
What package does MAX5900NNEUT+ use, and how does its size compare to other hot-swap ICs in the same function category?
MAX5900NNEUT+ is housed in a 6-pin SOT-23 package, one of the smallest standard surface-mount packages available. This footprint is significantly smaller than 8-pin SOIC alternatives, making it ideal for high-density telecom line cards where per-channel board area for -48 V hot-swap protection is at a premium.
Can MAX5900NNEUT+ threshold settings be adjusted after PCB layout, or are they fixed at design time?
The over-current and under-voltage thresholds are set by external resistors connected to the controller's threshold pins, allowing engineers to tune the trip points during prototype validation. Standard resistor values for a -48 V, 3 A application can be calculated from the datasheet formulas, and the thresholds can be changed by swapping 2 resistors without PCB redesign.
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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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