MAX5902ACEUT+ Analog Devices Integrated Circuit (SOT23 (6-Pin)) In Stock
The MAX5902ACEUT+ is an Analog Devices +72 V hot-swap controller in a 6-pin SOT-23 package, enabling safe live board insertion and removal on high-voltage backplane systems with adjustable undervoltage lockout and inrush current control. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- MAX5902ACEUT+ 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
- Supports up to +72 V bus voltage for high-voltage backplane hot-swap control
- Adjustable undervoltage lockout (UVLO) threshold for flexible power sequencing
- Single-channel hot-swap control in a compact 6-pin SOT-23 package
- Controls external MOSFET to limit inrush current during board insertion
- Simple swapper architecture minimizes external component count for hot-swap circuits
- Long lifecycle YTEOL of 9 years ensuring supply continuity for telecom and industrial designs
Applications
The MAX5902ACEUT+ is primarily used in telecom chassis, server backplane systems, and industrial rack equipment where live board insertion and removal at up to +72 V bus voltages must be managed without disrupting active system operation. It is also applied in test and measurement equipment and DC power distribution systems where adjustable UVLO thresholds and controlled inrush through an external pass transistor protect both the board and the backplane power bus.
Specifications
| Manufacturer Package Code | 6-SOT_23-N/A |
| Date Of Intro | 2001-04-07 |
| YTEOL | 9 |
| Additional Feature | ADJUSTABLE UNDERVOLTAGE LOCKOUT |
| Adjustable Threshold | NO |
| Analog IC - Other Type | HOT SWAP CONTROLLER |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| 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) | 2mA |
| Supply Voltage-Max (Vsup) | 72V |
| Supply Voltage-Min (Vsup) | 9V |
| Supply Voltage-Nom (Vsup) | 48V |
| 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
Up to what bus voltage does the MAX5902ACEUT+ support hot-swap operations, and does it cover 48 V telecom bus standards?
The MAX5902ACEUT+ operates as a hot-swap controller up to +72 V, which covers the standard -48 V telecom bus (operated as a positive reference at 48 V), 60 V industrial DC rails, and 72 V battery systems. The 72 V maximum rating provides 24 V of headroom above the 48 V nominal telecom bus, accommodating transient overvoltages during load switching without controller damage.
How does the adjustable undervoltage lockout in the MAX5902ACEUT+ protect boards during power supply brownout conditions?
The MAX5902ACEUT+ features an adjustable UVLO threshold set with external resistors, allowing designers to specify the exact bus voltage below which the hot-swap pass transistor turns off and disconnects the board load. This prevents the connected board from operating on an undervoltage supply, for example turning off below 40 V on a 48 V bus to avoid data corruption or memory errors in processors running at reduced supply.
What external component does the MAX5902ACEUT+ require to limit inrush current, and how does this compare to fully integrated hot-swap solutions?
The MAX5902ACEUT+ controls an external N-channel MOSFET to manage inrush current through its gate drive output, requiring 1 external FET rated for at least 72 V and the calculated peak inrush current. Compared to fully integrated hot-swap ICs with on-chip FETs, this approach lets engineers select a MOSFET matched to the target board's inrush and steady-state current requirements, typically 0.5 A to several amperes, without being limited by a fixed internal pass device.
For a new industrial controller design targeting a 10-year production run, is the MAX5902ACEUT+ a safe long-term component choice?
The MAX5902ACEUT+ carries a YTEOL of 9 years from its 2001 introduction baseline, indicating continued production support through the near-term future. However, procurement teams should verify the current lifecycle status with Analog Devices distribution channels and consider last-time-buy strategies if the YTEOL window falls within the product's 10-year production horizon, particularly for high-reliability industrial and telecom applications requiring 72 V hot-swap functionality.
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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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