The LM5067 negative hot swap controller provides intelligent control of the power supply connections during insertion and removal of circuit cards from a live system backplane or other “hot” power sources. The LM5067 provides in-rush current control to limit system voltage droop and transients. The current limit and power dissipation in the external series pass N-Channel MOSFET are programmable, ensuring operation within the Safe Operating Area (SOA). In addition, the LM5067 provides circuit protection by monitoring for over-current and over-voltage conditions. The POWER GOOD output indicates when the output voltage is close to the input voltage. The input under-voltage and over-voltage lockout levels and hysteresis are programmable, as well as the fault detection time. The LM5067-1 latches off after a fault detection, while the LM5067-2 automatically attempts restarts at a fixed duty cycle. The LM5067 is available in a 10-pin VSSOP package and a 14-pin SOIC package.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LM5067 | VSSOP (10) | 3.00 mm x 3.00 mm |
SOIC (14) | 8.99 mm x 7.49 mm |
Changes from Revision C (March 2013) to Revision D (August 2020)
Changes from Revision B (September 2009) to Revision C (March 2013)
DEVICE NUMBER |
RETRY BEHAVIOR AFTER FAULT |
PACKAGE |
---|---|---|
LM5067-1 |
Latch-off |
VSSOP (10), SOIC (14) |
LM5067-2 |
Auto-retry |
VSSOP (10), SOIC (14) |