TPS22919 5.5 V, 1.5 A, 90 mΩ Load Switch

TPS22919 5.5 V, 1.5 A, 90 mΩ Load Switch

1311
Views
0 Comments

Texas Instruments’ self-protected switch features controlled rise time and adjustable output discharge

Texas Instruments’ TPS22919 device is a small, single-channel load switch with a controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.5 A. The switch ON-state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a smart pull-down is used to keep the ON pin from floating until the system sequencing is complete. Once the pin is deliberately driven high (>VIH), the smart pull-down will be disconnected to prevent unnecessary power loss.

The TPS22919 load switch will protect itself from short-circuit events on the output. The converter has thermal shutdown to prevent any damage from overheating. The TPS22919 is available in a standard SC-70 package characterized for operation over a junction temperature range of -40°C to +125°C.

Features

  • Input operating voltage range (VIN): 1.6 V to 5.5 V
  • On-resistance (RON):
    • 5 V VIN: 89 mΩ (typ.)
    • 3.6 V VIN: 90 mΩ (typ.)
    • 1.8 V VIN: 105 mΩ (typ.)
  • Output short protection (ISC): 3 A (typ.)
  • Low power consumption:
    • ON-state (IQ): 8 µA (typ.)
    • OFF-state (ISD): 2 nA (typ.)
  • Adjustable output discharge and fall time:
    • Internal QOD resistance: 24 Ω (typ.)
  • Continuous current (IMAX): 1.5 A (max.)
  • Smart ON pin pull-down (RPD):
    • ON ≥ VIH (ION): 100 nA (max.)
    • ON ≤ VIL (RPD): 530 kΩ (typ.)
  • Slow turn ON timing to limit inrush current (tON):
    • 5.0 V turn ON time (tON): 1.95 ms at 3.2 mV/μs
    • 3.6 V turn ON time (tON): 1.75 ms at 2.7 mV/μs
    • 1.8 V turn ON time (tON): 1.5 ms at 1.8 mV/μs

more information: https://www.ti.com/product/TPS22919

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

view all posts by admin
Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments
Archives