PRODUCT DESCRIPTION
The LTC®4219 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. The LTC4219 provides separate inrush current control and a 10% accurate 5.6A current limit with foldback current 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 and power good monitoring are also provided.
The power good detection level and foldback current limit profile are internally preset for 5V (LTC4219-5) and 12V (LTC4219-12) applications.
PRODUCT PROPERTIES
Product Status | Active |
Type | Hot Swap Controller, Monitor |
Number of Channels | 1 |
Internal Switch(s) | Yes |
Applications | General Purpose |
Features | Thermal Limit, UVLO |
Programmable Features | Current Limit, Fault Timeout |
Voltage - Supply | 2.9V ~ 15V |
Current - Output (Max) | 5.6A |
Operating Temperature | -40°C ~ 85°C |
Current - Supply | 1.6 mA |
Mounting Type | Surface Mount |
Package / Case | 16-WFDFN Exposed Pad |
Supplier Device Package | 16-DFN (5x3) |
Base Product Number | LTC4219 |