PRODUCT DESCRIPTION
The LTC®4218 is a Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the gate of an external N-channel MOSFET for supply voltages from 2.9V to 26.5V. A dedicated 12V version (LTC4218-12) contains preset 12V specific thresholds, while the standard LTC4218 allows adjustable thresholds.
The LTC4218 provides an accurate (5%) current limit with current foldback limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense voltage for ground referenced current sensing. Overvoltage, undervoltage and power good monitoring are also provided.
PRODUCT PROPERTIES
Product Status | Active |
Type | Hot Swap Controller, Monitor |
Number of Channels | 1 |
Internal Switch(s) | No |
Applications | ATCA, MicroTCA™ |
Features | - |
Programmable Features | Auto Retry, Current Limit, Fault Timeout, Latched Fault, OVP, UVLO |
Voltage - Supply | 2.9V ~ 26.5V |
Current - Output (Max) | - |
Operating Temperature | -40°C ~ 85°C |
Current - Supply | 1.6 mA |
Mounting Type | Surface Mount |
Package / Case | 16-SSOP (0.154", 3.90mm Width) |
Supplier Device Package | 16-SSOP |
Base Product Number | LTC4218 |