ovp
Accurate Overvoltage Protectors with Active Current Limiting
Submitted by Ionela on Wed, 09/03/2008 - 17:01.
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Maxim Integrated Products introduces the MAX4978-MAX4981 overvoltage protectors (OVPs) with active current limiting. They protect low-voltage systems against voltage faults up to 28V with 5.7V and 6.8V threshold options. The active current limiter provides a second layer of defense for the protected device and is available in 0.9A and 1.95A threshold options. Designed to protect the charger input port of portable devices, these OVPs are ideal for cell phones, MP3 players, digital still cameras (DSCs), and PDAs |
Overvoltage-Protection Controllers Provide Robust ESD Protection for Hi-Speed USB D /D- Signals
Submitted by Ionela on Fri, 03/14/2008 - 07:46.
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SUNNYVALE, CA—January 24, 2008—Maxim Integrated Products (Pink Sheets: MXIM) introduces the MAX4987AE/MAX4987BE* overvoltage-protection (OVP) controllers with internal overcurrent protection. These devices integrate low-capacitance (3pF, typ) diodes to provide robust, ±15kV ESD protection (Human Body Model) for Hi-Speed USB and USB (full-speed or low-speed) D+/D- signals. The MAX4987AE/MAX4987BE are ideal for space-constrained applications-such as cell phones, smartphones, PDAs, MP3 players, and portable video players-that are attached to USB ports for connectivity or charging. |
