Search for:	Search what?


	Aug 30, 2008

Newsletters

Subscribe Free to Product News Alerts

Receive customized, daily news on the products you want.
Subscribe View Sample

Overvoltage Protection Controllers have integrated nFET.

August 29, 2007 - Supplied in 2 x 2 mm 8-pin µDFN package, MAX4943-MAX4946/MAX4949 devices implement battery charging from wall adapter while providing overvoltage protection up to +28 V. Products integrate nFET switch and provide overvoltage trip levels from 4.56-8.9 V as well as undervoltage trip levels from 2.45-4.15 V. Along with thermal-shutdown protection and 1.7 A (typ) current-limiting function, additional features include FLAG signal, ±15 kV ESD protection, and 30 ms startup delay/retry times.

Related categories: Controls and Controllers | Electrical Equipment and Systems | Electronic Components and Devices

Archive Press Release
(Products mentioned in this Archive Press Release may or may not be available from the manufacturer.)

Release date: August 2, 2007

Overvoltage-Protection Controllers with Integrated nFET

The MAX4943-MAX4946/MAX4949 is a family of overvoltage protection controllers.
MAX4943-MAX4946/MAX4949 integrate an nFET, eliminating the need for an external FET.
An nFET requires a smaller area (almost half) than a pFET, for a given RON, thus saving space.
The MAX4943-MAX4946/MAX4949 are ideal for devices that implement battery charging from a wall adapter.

SUNNYVALE, CA-August 2, 2007-Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX4943*-MAX4946/MAX4949 overvoltage-protection (OVP) controllers with an integrated nFET. These devices provide OVP up to +28V.

The MAX4943-MAX4946/MAX4949 provide overvoltage trip levels from 4.56V to 8.9V and undervoltage trip levels from 2.45V to 4.15V. Integrating the nFET switch into the devices' 2mm x 2mm µDFN package reduces the overall external system component count and required board space. Consequently, these devices are ideal for space-constrained applications such as cell phones, digital still cameras, PDAs, and MP3 players.

Additional controller features include a 1.7A (typ) current-limiting function to protect the circuitry against short-circuit conditions, a FLAG signal to notify the processor that an overvoltage or undervoltage fault condition occurred, thermal-shutdown protection, ±15kV ESD protection, and 30ms startup delay and retry times.

These OVP controllers are specified to operate over the -40°C to +85°C industrial temperature range. The MAX4943-MAX4946/MAX4949 are available in a 2mm x 2mm, 8-pin µDFN package. Prices start at $1.14 (1000-up, FOB USA).

*Future product-contact factory for availability

Company Information:
Name: Maxim Integrated Products
Address: 120 San Gabriel Dr.
City: Sunnyvale
State: CA
ZIP: 94086
Country: USA
Phone: 408-737-7600
FAX: 408-737-7194
http://www.maxim-ic.com

Story Tools

Go Back |

E-Mail | Print | Post

Click here for copyright permissions!
Copyright 2008 Thomas Publishing Company

	View Company Profile at ThomasNet.com
	Company web site
	More news from this company
	Search for suppliers of: Voltage Surge Protectors Controllers Integrated Circuits (IC)
	Join the forum discussion at: Tools of the Trade Wired In

Related Stories:
Aug 28, 2008	Thin Film Transistor Chip targets smart phones.
Aug 26, 2008	DC/DC Converter suits space-constrained applications.
Aug 26, 2008	DP and PCIe Switches suit size/power conscious applications.
Aug 26, 2008	Single-Chip DAC SoC is designed for cable STBs.
Aug 22, 2008	Power Converters operate over -40 to +85°C temperature range.
Aug 15, 2008	Ideal Diode Controller integrates 5 A MOSFET.
Aug 15, 2008	Boost Converters have micropower, low-noise architecture.
Aug 15, 2008	MOSFET Ideal Diode Controller offers fast turn-on/off.
Aug 15, 2008	TPOS Cam Sensor is factory-programmed and flexible.
Aug 15, 2008	Stereo Audio Codec LSI measures 2.96 x 2.96 mm.
Aug 14, 2008	Photo-IC Sensor optimizes display visibility.
Aug 14, 2008	Control IC targets PFC circuits mounted in AV devices.
Aug 12, 2008	TFT LCD Driver integrates MIPI and DSI on one chip.
Aug 11, 2008	Power Management ICs help extend battery life.
Aug 7, 2008	Clock-Distribution ICs support per-channel enable controls.
Aug 7, 2008	LED Driver features integrated MOSFET.
Aug 6, 2008	High-Current LED Driver employs MCU for intelligent operation.
Aug 5, 2008	MOSFET Pre-Driver IC targets motor system designers.
Aug 5, 2008	Battery Charger can handle input voltages up to 28 V.
Aug 4, 2008	FP/DFB Laser Diode Driver delivers up to 4.25 Gbps.

More New Product News from this company:
Aug 5, 2008	Data Switches are for multiplexing SDHC and SDIO interfaces.
Aug 5, 2008	DPDT Analog Switches offer ±15 kV ESD protection.
Aug 5, 2008	VHF/UHF Transmitter handles power-sensitive applications.
Aug 5, 2008	Power-Monitoring IC provides ±1% accuracy.
Aug 5, 2008	Dual-Output Clock Generator targets Ethernet applications.
Aug 5, 2008	Xenon Photoflash Capacitor Chargers include IGBT driver.
Aug 5, 2008	Recovery System provides data rates up to 2.488 Gbps.
Aug 4, 2008	Video Filter Amp lets portable devices output SD signals.
Jul 22, 2008	Microcontroller SoCs process differential sensor output.
Jul 22, 2008	OFDM-Based PLC Modem delivers 100 kbps max at 10-490 kHz.
Jul 21, 2008	Multichemistry Battery Charge ICs minimize end product size.
May 19, 2008	Class D Amplifiers have 8-28 V single-supply voltage range.
May 19, 2008	Timing-Card IC supports SONET/SDH and/or Synch-E Ports.
May 19, 2008	PWM Controller has dynamic REFIN in 3 x 3 mm TDFN package.
May 19, 2008	Polyphase IC measures electrical activity.
May 19, 2008	Linear LDO Regulators suit automotive sensor applications.
May 19, 2008	MOSFET Drivers integrate adjustable LDO.
May 16, 2008	LED Driver has integrated Class D audio amplifier.
May 16, 2008	LED Drivers are intended for harsh automotive environments.
May 16, 2008	Switches support DisplayPort and PCIe 2.0 data rates.

Other News from this company:
May 05, 2008	Maxim Introduces the Industry's Most Efficient Parametric Search
Mar 12, 2008	Low-Cost, HD and SD Video Filters Provide Superior Performance for Global Consumer Markets
Dec 04, 2007	Maxim Integrated Products Announces Final Settlement with Securities and Exchange Commission Inquiry
Nov 19, 2007	Joseph R. Bronson Appointed to Board of Directors of Maxim Integrated Products
Aug 06, 2007	Maxim Appoints Bruce Kiddoo, Vice President of Finance. Will Assume CFO Post After Restatement is Complete.
Aug 02, 2007	Maxim Reports Record Revenues Exceeding $2 Billion in Fiscal Year 2007
Jun 27, 2007	Industry's First Universal, Single-Chip GNSS Receiver Achieves Total Cascaded NF of 1.4dB and Eliminates External LNA
Jun 18, 2007	OVP Controllers Drive an External pFET and Draw Only 13µA
Jun 13, 2007	Industry's First Production-Ready, Single-Chip, 2.3GHz to 2.7GHz WiMAX RF Transceiver Saves Over 50% BOM Cost
Jun 06, 2007	High-Performance CVBS/S-Video Reconstruction Filter and Buffer Supports All SDTV Video Formats
Jun 04, 2007	Automotive Contact Monitor and Level Shifter Monitors Remote Switches and Consumes Only 17µA
May 08, 2007	Maxim Announces Decision to Discontinue Development of Certain Standalone Highspeed, High-Resolution Analog to Digital Converters

Brought to you by Thomasnet.com Browse ThomasNet Directory

News provided by ThomasNet Industrial Newsroom^® (TIN). TIN is a comprehensive source of new and timely product information in the industrial marketplace. TIN supplies new product information to the web sites, e-marketplaces and print publications that serve the industrial marketplace. For press release submissions please go to http://www.productnews.com/SubmitPRPage.html. BY ACCESSING, BROWSING AND/OR USING THIS WEB SITE AND/OR ANY WEB SITES PROVIDED BY ProductNews.com, YOU AGREE TO BE BOUND BY THE TERMS OF USE AGREEMENT.