LTC4219 5A Integrated Hot Swap Controller Fea T Descrip T n Small Footprint The LTC 4219 is an integrated solution for Hot Swap n 33m MOSFET with R applications that allows a board to be safely inserted and SENSE n Available in Preset 12V and 5V Versions removed from a live backplane. The part integrates a Hot n Adjustable, 10% Accurate Current Limit Swap controller, power MOSFET and current sense resis- n Current and Temperature Monitor Outputs tor in a single package for small form factor applications. n Overtemperature Protection The LTC4219 provides separate inrush current control n Adjustable Current Limit Timer Before Fault and a 10% accurate 5.6A current limit with foldback cur- n Power Good and Fault Outputs rent limiting. The current limit threshold can be adjusted n Adjustable Inrush Current Control dynamically using an external pin. Additional features n Available in 16-Lead 5mm 3mm DFN Package include a current monitor output that amplifies the sense resistor voltage for ground referenced current sensing and a MOSFET temperature monitor output. Thermal limit a T and power good monitoring are also provided. The power n RAID Systems good detection level and foldback current limit profile are n Server I/O Cards internally preset for 5V (LTC4219-5) and 12V (LTC4219-12) n Industrial applications. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical a T 12V, 5A Card Resident Application Power-Up Waveforms V OUT 12V V OUT 12V DD V IN 12V 5A CONTACT + * 10V/DIV BOUNCE 330F LTC4219DHC-12 200k 200k 10k I 12V IN 0.1A/DIV EN1 PG 10k V OUT 10V/DIV EN2 FLT PG TIMER I SET 10V/DIV 4219 TA01b INTV I ADC CC MON 20ms/DIV 1F GND 20k 4219 TA01a *TVS: DIODES INC. SMAJ17A 4219fd 1 For more information www.linear.com/LTC4219 ion pplica ions pplica ion uresLTC4219 a Te m aximum r a T p in c F T (Notes 1, 2) TOP VIEW Supply Voltage (V ) ................................. 0.3V to 28V DD V 1 16 V Input Voltages DD DD EN1 2 15 I SET FB, EN1, EN2 ...........................................0.3V to 12V EN2 3 14 I MON TIMER ................................................... 0.3V to 3.5V TIMER 4 13 FB 17 SENSE .............................V 10V or 0.3V to V DD DD SENSE INTV 5 12 FLT CC Output Voltages GND 6 11 PG I , I ................................................. 0.3V to 3V SET MON OUT 7 10 GATE PG, FLT................................................... 0.3V to 35V OUT 8 9 OUT OUT ............................................ 0.3V to V + 0.3V DD DHC PACKAGE INTV .................................................. 0.3V to 3.5V CC 16-LEAD (5mm 3mm) PLASTIC DFN GATE (Note 3) ........................................ 0.3V to 33V T = 125C, q = 43C/W JMAX JA q = 43C/W EXPOSED PAD SOLDERED, OTHERWISE q = 140C/W Operating Ambient Temperature Range JA JA LTC4219C ................................................ 0C to 70C LTC4219I .............................................40C to 85C Junction Temperature (Notes 4, 5) ........................ 125C Storage Temperature Range .................. 65C to 150C o r Der i n F T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4219CDHC-12 PBF LTC4219CDHC-12 TRPBF 421912 16-Lead (5mm 3mm) Plastic DFN 0C to 70C LTC4219IDHC-12 PBF LTC4219IDHC-12 TRPBF 421912 16-Lead (5mm 3mm) Plastic DFN 40C to 85C LTC4219CDHC-5 PBF LTC4219CDHC-5 TRPBF 42195 16-Lead (5mm 3mm) Plastic DFN 0C to 70C LTC4219IDHC-5 PBF LTC4219IDHC-5 TRPBF 42195 16-Lead (5mm 3mm) Plastic DFN 40C to 85C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: