GENERAL DEscriptION

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.

PIN CONFIGURATIONS

FEATURES

• 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

APPLICATIONS

24V/48V Industrial Systems

Server Backplane Systems

Solid State Circuit Breaker

base Station