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LTC4217CDHC-12 Datasheet(PDF) 1 Page - Linear Technology |
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LTC4217CDHC-12 Datasheet(HTML) 1 Page - Linear Technology |
1 / 18 page LTC4217 1 4217fc TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION 2A Integrated Hot Swap Controller The LTC®4217 is an integrated solution for Hot Swap™ applications that 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. A dedicated 12V version (LTC4217-12) contains preset 12V specific thresholds, while the standard LTC4217 allows adjustable thresholds. The LTC4217 provides separate inrush current control and a 5% accurate 2A current limit with foldback cur- rent limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense resistor voltage for ground referenced current sensing and a MOSFET temperature monitor output. Thermal limit, overvoltage, undervoltage and power good monitoring are also provided. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. 12V, 1.5A Card Resident Application n Small Footprint n 33m Ω MOSFET with RSENSE n Wide Operating Voltage Range: 2.9V to 26.5V n Adjustable, 5% Accurate Current Limit n Current and Temperature Monitor Outputs n Overtemperature Protection n Adjustable Current Limit Timer Before Fault n Power Good and Fault Outputs n Adjustable Inrush Current Control n 2% Accurate Undervoltage and Overvoltage Protection n Available in 20-Lead TSSOP and 16-Lead 5mm × 3mm DFN Packages n RAID Systems n Server I/O Cards n Industrial Power-Up Waveforms ADC 0.1μF 12V VOUT 12V 1.5A 20k 4217 TA01a 10k 12V 330μF VDD UV OUT PG ISET GND IMON LTC4217DHC-12 INTVCC TIMER FLT AUTO RETRY + VIN 10V/DIV IIN 0.1A/DIV VOUT 10V/DIV PG 10V/DIV 25ms/DIV 4217 TA01b |
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Similar Description - LTC4217CDHC-12 |
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