Reference Design - TPS2490, 12Vout 60A Hotswap using TI's CSD17570Q5B NexFETs
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This circuit is a hot swap design using the TPS2490 hot swap controller with power limiting and two 30V CSD17570Q5B NexFETs. The system can be used in security servers to give the ability to plug-in line cards when the system is up and running. Constant current start-up using dV/dt control is implemented to keep the inrush current between 1-A and 2-A.

Circuit can sit inside a line card side.

Vin = 12V, ILoad = 60A

  • Completed design and tested
  • Reference design for server applications
  • Features 30V, 0.56mohm (typical at 10V Vgs) CSD17570Q5B in 5x6mm QFN

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(Output Voltage 1)
Vin (Min) (V)10
Vin (Max) (V)14
Vout (Nom) (V)12
Iout (Max) (A)60
Output Power (W)720
Input TypeDC
TopologyHot Swap

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD17570Q5B  30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.92 mOhm  MOSFETs  Sample & Buy Not Available
TPS2490  9-V to 80-V hot swap controller with power limiting and latch off  Power switches  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD17570Q5B VSON-CLIP (DNK)| 8 Download
TPS2490 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 486 13 Jan 2015
Design files (4)
Title Type Size (KB) Date
ZIP 221 13 Jan 2015
PDF 21 13 Jan 2015
PDF 234 13 Jan 2015
PDF 51 13 Jan 2015

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