SGM25701.pdf
No.13870
? Wide Input Voltage Range: 9V to 70V
? Inrush Current Limit, PCB can be Safely Inserted into Live Equipment
? External Device Programming Maximum Loss Limit
? Programmable Current Limit
? Adjustable Under-Voltage Lockout (EN/UVLO)
? Adjustable Over-Voltage Lockout (OVLO)
? Open-Drain for Good Output Indication
? Quick Cut-Off Function when Severe Over-Current Occurs
? Configure Charge Pump/Gate Driver for External N-MOSFET
? The Setting of the Insertion Time Allowing the Ringing
and Transient Recovery Process after the System Connected
? Adjustable Fault Timing to Prevent False Shutdown
? Behavior after Fault:
SGM25701A: Auto-Retry
SGM25701B: Latch-Off
? Available in a Green MSOP-10 Package
The SGM25701 is a positive hot swap controller that allows a board to be safely inserted or removed from a live backplane. Inrush current control function can effectively reduce the voltage drop on the power supply rail.
The SGM25701 offers programmable power-limiting and current limit to ensure that the external MOSFET operates within its safe operating area (SOA) at all times.
The chip has a good output indication function when the VOUT increases to within the 1.4V range of the VIN.
Programmable under-voltage lockout or over-voltage lockout is used to turn off the device if the VIN drops below or raises over a threshold value. The fault detection time and initial insertion delay time can also be adjusted by the user.
The SGM25701B will latch off when a fault is detected, while the SGM25701A will go into auto-retry mode.
SGM25701 is available in a Green MSOP-10 package.
