Low Power Consumption PolyZen Device Addresses USB 3.0 Operating Current Requirement in Suspend Mode
The overwhelming majority of consumers want the convenience of using fewer cords to power their cell phones, MP3 players and other electronic equipment, as well as the flexibility to charge portable equipment from their computers. Because of this market demand, nearly all current and future handheld devices will be able to charge from USB sources. However, USB requirements present several circuit protection challenges for designers of portable equipment. Overvoltage, poor regulation, electromagnetic induction, electrostatic discharge (ESD), incorrect wiring, and reverse voltages are just a few of the events that a USB-enabled device may be exposed to.
Because high power-consumption can limit operation and battery life, proper power management is also a crucial issue for design engineers. For example, operating current from a USBenabled device may be high enough to “wake-up” the device from sleep or suspend mode, thereby wasting battery power.
A solution for both circuit protection challenges and highpower-consumption issues in USB applications is now available from Littelfuse in a new line of low-power-consumption PolyZen devices that help provide protection against damage caused by overcurrent, overvoltage and ESD events. The devices also meet the USB 3.0 minimum operating current requirements during suspend mode.
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Low Power Consumption PolyZen Device 、 low-capacitance Silicon ESD (SESD) protection devices 、 Polymer ESD (PESD) protection devices |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2016/11/23 |
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1.1 MB |
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