LTC4238

LAST TIME BUY

High Voltage High Current Hot Swap Controller

Data Sheet (Rev. 0) Product Selection Table

Viewing:

Part Details

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 V_GS and V_DS for MOSFET Health
12V Gate Drive for Lower MOSFET R_DS(ON)
Parallelable Controllers for Very High Current Levels
Available in 24-Lead Narrow SSOP and 24-Pin 4mm × 5mm QFN Packages

Documentation

Data Sheet 1

LTC4238: High Voltage High Current Hot Swap Controller Data Sheet (Rev.0) 07/30/2020

User Guide 1

DC2914A - Demo Manual (Rev.0) 07/30/2020

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC4238 - Hot Swap Controllers

Models for the following parts are available in LTspice:

LTC4238

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTC4238 High Power Hot Swap Controller

Buy Now View Details

Product Details

DC2914A showcases the LTC4238, high power, Hot Swap controller. LTC4238 is suited for 12V, 24V and 48V systems and comes loaded with advanced features including SOA timer, COMM pin for scalability, and various operating modes. The board has three variants to showcase the three different staged start topologies of LTC4238. The DC2914A-A showcases the parallel mode of operation for a 48V, 1.5kW application. The DC2914A-B demonstrates the low stress staged start mode for a 48V, 2.5 kW regulated input application. The DC2914A-C showcases the high stress staged start mode with SOA timer for 48V, 2.5kW application with large input steps. Onboard LEDs indicate the presence of input, output as well as power good signaling and any fault if present. High voltage layout rules are followed for best long-term product reliability.

Resources

DC2914A - Schematic
93.49 K

DC2914A - Design Files
2.55 M

DC2914A - Demo Manual (Rev.0)
428.82 K

Latest Discussions

3 Years Ago