LTC4234CWHH#PBF

LTC®4234 is a 20A guaranteed SOA hot swap controller allows a board to be safely inserted and removed from a live backplane. The part integrates a hot swap controller, power MOSFET, and current sense resistor in a single package for small form factor applications. The MOSFET Safe Operating Area is production tested and guaranteed for the stresses in Hot Swap applications. This provides separate inrush current control and an 11% accurate 22.5A current limit with output-dependent foldback. Application includes high availability servers, solid state drives, industrial, 240W, 12V systems.

• Allows safe board insertion into live backplane
• Small footprint
• Current and temperature monitor outputs
• Overtemperature protection
• Adjustable current limit timer before fault
• Power good and fault outputs
• Input supply range from 2.9 to 15V (TA = 25°C, VDD = 12V)
• Typical turn-on delay is 48ms (Step VUV to 2V, VGATE <gt/> 13V, TA = 25°C)
• 38-lead plastic QFN package
• Temperature rating range from 0°C to 70°C

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