MAX5926

PRODUCTION

MAX5926

1V to 13.2V, n-Channel Hot-Swap Controllers Require No Sense Resistor

PRODUCTION

MAX5924, MAX5925, MAX5926: Functional Diagram slide

MAX5924, MAX5925, MAX5926: Functional Diagram

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Part Models 2

1ku List Price Starting From $2.63

Features

Hot Swap 1V to 13.2V with V_CC > 2.25V
Drive High-Side n-Channel MOSFET
Operation With or Without R_SENSE
Temperature-Compensated R_DS(ON) Sensing
Protected During Turn-On into Shorted Load
Adjustable Circuit-Breaker Threshold
Programmable Slew-Rate Control
Programmable Turn-On Voltage
Autoretry or Latched Fault Management
10-Pin µMAX® or 16-Pin QSOP Packages

Additional Details

The MAX5924/MAX5925/MAX5926 1V to 13.2V hot-swap controllers allow the safe insertion and removal of circuit cards into live backplanes. These devices hot swap supplies ranging from 1V to 13.2V provided that the device supply voltage, V_CC, is at or above 2.25V and the hot-swapped supply, V_S, does not exceed V_CC.

The MAX5924/MAX5925/MAX5926 hot-swap controllers limit the inrush current to the load and provide a circuit-breaker function for overcurrent protection. The devices operate with or without a sense resistor. When operating without a sense resistor, load-probing circuitry ensures a short circuit is not present during startup, then gradually turns on the external MOSFET. After the load probing is complete, on-chip comparators provide overcurrent protection by monitoring the voltage drop across the external MOSFET on-resistance. In the event of a fault condition, the load is disconnected.

The devises include many integrated features that reduce component count and design time, including configurable turn-on voltage, slew rate, and circuit-breaker threshold. An on-board charge pump provides the gate drive for a low-cost, external n-channel MOSFET.

The MAX5924/MAX5925/MAX5926 are available with open-drain PGOOD and/or active-low PGOOD outputs. The MAX5925/MAX5926 also feature a circuit breaker with temperature-compensated R_DS(ON) sensing. The MAX5926 features a selectable 0ppm/°C or 3300ppm/°C temperature coefficient. The MAX5924 temperature coefficient is 0ppm/°C and the MAX5925 temperature coefficient is 3300ppm/°C. Autoretry and latched fault-management configurations are available (see the Selector Guide in the full data sheet).

Applications

Base Stations
Network Routers and Switches
Portable Device Bays
RAID
Remote-Access Servers
Servers

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Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $2.63

Technical Documents 1

MAX5924-MAX5926: 1V to 13.2V, n-Channel Hot-Swap Controllers Require No Sense Resistor Data Sheet (Rev.4) 02/16/2016

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX5926EEE+	16-QSOP-150_MIL	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX5926EEE+T	16-QSOP-150_MIL	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX5926EEE+
Pin/Package Drawing
16-QSOP-150_MIL
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX5926EEE+T
Pin/Package Drawing
16-QSOP-150_MIL
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

Companion Parts 2

Parts	Product Life Cycle	Description
Low Voltage Hot Swap Controllers2
MAX4271	PRODUCTION	3V to 12V, Current-Limiting, Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection
MAX4272	PRODUCTION	3V to 12V, Current-Limiting, Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection

MAX5926EVKIT

Evaluation Kit for the MAX5926

MAX5926EVKIT

Evaluation Kit for the MAX5926

Features and Benefits

VS Voltage Range: 1V to V_CC
V_CC Voltage Range: 2.25V to 13.2V
No R_SENSE Required
Tracks R_DS(ON) Over Temperature
Latch Mode
Adjustable Slew Rate
Short-Circuit Detection
Power-Good Output

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Product Detail

The MAX5926 evaluation kit (EV kit) is designed to evaluate the MAX5926 hot-swap controller. The hot-swapped supply (VS) has a range of 1V to 13.2V provided that the device supply (V_CC) is at or above 2.25V and VS does not exceed V_CC.

The current-trip setting is approximately 6A for a full load 5A system. The actual current-trip setting is dependent on temperature as well as the tolerances of R_CB, R_CBF, I_CB, V_{CB_OS}, and R_DS(ON).

The MAX5926 EV kit was conveniently designed with jumpers to activate the enables (EN1, active-low EN2), fault management (LATCH), temperature coefficient tracking (TC), adjustable output slew rate (SLEW), and power-up short-circuit detection (SC_DET).

Applications

Base Stations
Network Routers and Switches
Portable Device Bays
RAID
Remote-Access Servers
Servers

MAX5926EVKIT

Evaluation Kit for the MAX5926

LTspice 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.