Sunday, April 18, 2021

e-Fuse Protector to Your Circuit

What is eFuse?

 

Check the datasheet of TPS25921LDR

  • The chip is an inexpensive great method to protect your electronic product
  • It is capable of following 
    • 4.5 V – 18 V Operating Voltage, 20 V (Max)
    • 90 mΩ RDS(ON) (Typical)
    • 0.4 A to 1.6 A Adjustable Current Limit
    • ±3% Overvoltage, Undervoltage Threshold
    • ±2% Accurate I limit at 1A at 25°C
    • Fault Output for Thermal Shutdown, UVLO, and OVP
    • 40°C to 125°C Junction Temperature Range
  • Shall be used in many applications
    • Smart Load Switch
    • USB Switch
    • White Goods, Appliances
    • Adapter Power Devices
  • Few resistor and capacitor will do the job

  • Overvoltage Protection - voltage limit can be set
  • Under-voltage Protection - voltage limit can be set
  • Overcurrent Protection - current limit can be set
  • Inbuild temperature sensor to switch off the chip itself during an overcurrent condition

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