LTC4238
Overview
The LTC®4238 is a high voltage high current Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. Dual 12V gate drive is well suited for high power applications to either share safe operating area across parallel MOSFETs or support a 2-stage start-up that first charges the load capacitance followed by enabling a low on-resistance path to the load.
- Allows Safe Board Insertion into Live Backplane
- Wide Operating Voltage Range: 6.5V to 80V
- Drives Two Gates for High Power Applications
- Configurable Parallel, Staged Start or Single MOSFET Modes
- Adjustable Precision Current Limit: 6mV to 20mV
- Current Foldback Limits MOSFET Power
- SOA Timer Optimizes MOSFET Capability
- Monitors VGS and VDS for MOSFET Health
- 12V Gate Drive for Lower MOSFET RDS(ON)
- Parallelable Controllers for Very High Current Levels
