JW7221 Overview
The JW®7221 and JW®7221L are positive hot swap controllers that allows a board to be safely inserted and removed from a live backplane or other hot power sources. JW7221/W7221L offers inrush current control to protect MOSFET against system voltage droop and transients. The function of power limit protection allows better utilization of the external MOSFET’s SOA.
JW7221 Key Features
- Wide operating range: 9 V to 80 V
- Inrush current limit protection
- Programmable power limit
- Adjustable current limit: 55mV±11%
- Circuit breaker function for severe
- Internal high side charge pump and gate
- Adjustable under-voltage lockout (UVLO)
- Adjustable over-voltage lockout (OVLO) and
- Initial insertion timer allows ringing and
- Programmable fault timer