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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 424kB) Download   E-Mail

Description

The MAX5911/MAX5912 are fully integrated hot-swap switches for negative supply rails. These devices allow the safe insertion and removal of circuit cards into live backplanes or ports without causing problematic glitches on the negative power-supply rail. They also monitor various circuit parameters and disconnect the load if a fault condition occurs, alerting the host with a logic-level FAULT-bar output. The MAX5911/MAX5912 operate over a voltage range of -16V to -65V and are designed to permit hot plugging of an IP phone into a hub, but are not limited to that operation. During startup, an internal power FET regulates the current between the backplane power source and the load to 280mA for MAX5911 and 415mA for MAX5912. After startup, the FET is fully enhanced to reduce its on-resistance. To ensure robust operation, the MAX5911/MAX5912 contain built-in safety features that prevent damage to the internal FET. They include an enable input, which responds to positive logic signals (+3.3V or +5V), allowing the host system to disconnect the load. ENABLE is also used to reset the device after a latching fault condition occurs. The MAX5911/MAX5912 Simple Swapper™ hot-swap ICs monitor four parameters for these fault conditions: undervoltage lockout (UVLO), power-not-good, zero-current detection, and thermal shutdown. These devices are available in the extended temperature range, -40°C to +85°C. The MAX5911 and MAX5912 come in 8-pin and 16-pin SOIC packages, respectively.

Key Features		Applications/Uses
Provides Safe Hot Swap for -16V to -65V Power Supplies 280mA Current Limit for MAX5911 415mA Current Limit for MAX5912 Zero-Current Load Disconnect Integrated Power FET Status Output Reports Fault Condition Internal Switch-Protection Circuitry Built-In Thermal Shutdown DGND Can Vary Up to ±5V with Respect to AGND		Bridges Network Hubs, Switches, Routers Routers/Switches

Diagram

Typical Operating Circuit

Reliability Reports

Show FIT data for: MAX5911 MAX5912 Request Reliability Report for: MAX5911 MAX5912

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-8 of 8

MAX5911	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5911ESA			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5911ESA-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX5911ESA+			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5911ESA+T			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5912	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5912ESE			Active	SOIC(N);16 pin;62 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-9F*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5912ESE-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX5912ESE+			Active	SOIC(N);16 pin;62 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+9F*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5912ESE+T			Active	SOIC(N);16 pin;62 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+9F*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2001-02-08

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