MAX5947

PRODUCTION

Positive High-Voltage, Hot-Swap Controllers

Data Sheet (Rev. 1) Product Selection Table

Part Models: 6
1ku List Price: Starting From $3.41

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Overview

Pin- and Function-Compatible with the LT1641-2 (MAX5947B)
Provides Safe Hot Swap for +9V to +80V Power-Supply Range (MAX5947A/B/C)
Safe Board Insertion and Removal from Live Backplanes
Latched/Autoretry Management
Active-Low or Active-High Power-Good Output
Programmable Foldback Current Limiting
High-Side Drive for an External N-Channel MOSFET
Built-In Thermal Shutdown
Undervoltage Lockout (UVLO)
Overvoltage Protection
User-Programmable Supply Voltage Power-Up Rate

The MAX5933A-MAX5933F/MAX5947A/B/C fully integrated hot-swap controllers for +9V to +80V positive supply rails (MAX5947A/B/C), allow for the safe insertion and removal of circuit cards into live backplanes without causing glitches on the backplane power-supply rail. The MAX5947B is pin- and function-compatible with the LT1641-2. The other devices offer added features such as a choice of active-high or active-low power-good outputs (PWRGD/PWRGD-bar), latched/autoretry fault management, and autoretry duty-cycle options of 3.75% or 0.94% (see the Selector Guide).

The MAX5933A-MAX5933F are available with a default undervoltage lockout threshold of +31V and operate over a supply voltage range of +33V to +80V. The MAX5947A/B/C are available with a default undervoltage of +8.3V. All devices feature a programmable analog foldback current limit. If the device remains in current limit for more than a programmable time, the external n-channel MOSFET is either latched off (MAX5933A/MAX5933C/MAX5947A) or is set to automatically restart after a timeout delay (MAX5933B/MAX5933D/MAX5933E/MAX5933F/MAX5947B/MAX5947C).

The MAX5933_ and MAX5947_ operate in the extended temperature range of -40°C to +85°C. These devices are available in an 8-pin SO package.

Applications

24V/48V Industrial/Alarm Systems
Electronic Circuit Breakers
Hot Board Insertion
Industrial High-Side Switch/Circuit Breakers
Network Routers and Switches

Part Models: 6
1ku List Price: Starting From $3.41

Documentation

Data Sheet 1

MAX5933A-MAX5947C: Positive High-Voltage, Hot-Swap Controllers Data Sheet (Rev.1) 07/27/2004

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
MAX5947AESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5947AESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5947BESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5947BESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5947CESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5947CESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 30, 2020 - 1702R2 ASSEMBLY
		pcn_1702r2
MAX5947AESA+	PRODUCTION
MAX5947AESA+T	PRODUCTION
MAX5947BESA+	PRODUCTION
MAX5947BESA+T	PRODUCTION
MAX5947CESA+	PRODUCTION
MAX5947CESA+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Protection Switches & Controllers 1
MAX5932	PRODUCTION	Positive High-Voltage, Hot-Swap Controller

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

MAX5947A
MAX5947B
MAX5947C

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.

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