Electronics Engineering Herald                 
Home | News | New Products | India Specific | Design Guide | Sourcing database | Student Section | About us | Contact us | What's New
Processor / MCU / DSP
Memory
Analog
Logic and Interface
PLD / FPGA
Power-supply and Industrial ICs
Automotive ICs
Cellphone ICs
Consumer ICs
Computer ICs
Communication ICs (Data & Analog)
RF / Microwave
Subsystems / Boards
Reference Design
Software / Development kits
Test and Measurement
Discrete
Opto
Passives
Interconnect
Sensors
Batteries
Others

New Products

  Date: 29/06/2014

Load Switch from Diodes Incorporated Safeguards USB Ports

Diodes Inc introduced the AP22802, a single-channel load switch for protecting interconnects that are subject to the risk of surges and short circuits. The AP22802 quickly clamps output current to a safe level upon fault sensing. AP22802 is optimized for regular USB and other hot-swap applications and is available in SOT25 with footprint of only 9mm2.

The AP22802 sets a typical current limit of 2.7A to guard against overloads and operates over an input voltage range of 2.7V to 5.5V. AP22802 offers circuit designers the choice of either active-low and active-high enable inputs.

The deviceís under-voltage lockout function keeps the internal power switch remains off until input power level reaches minimum of 2V, even if the switch is enabled, which is useful for the design of single-channel, hot-insert systems.

The AP22802ís automatic discharge function and internal N-MOS power switch combine to provide a dependable resistive discharge path. This enables the device to safely handle residual output voltage when the switch is disabled and no external resistance is present at the output.

Other protection features of the load switch include over-temperature detection with auto-recovery, reverse current blocking and controlled rise time. An open-drain flag output is also included, with a built-in 6ms deglitch to prevent false reporting of over-current and over-temperature conditions.



 
ADVT
Home | News | New Products | India Specific | Design Guide | Sourcing database | Student Section | About us | Contact us | What's New
©2010 Electronics Engineering Herald