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MAX5976/MAX5976A/MAX5976B,pdf
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2010-10-31
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The MAX5976A/MAX5976B are integrated solutions for
hot-swap applications requiring the safe insertion and
removal of circuit line cards from a live backplane. The
devices integrate a hot-swap controller, 24mI power
MOSFET, and electronic circuit-breaker protection in a
single package. The ICs are designed for protection of
2.7V to 18V supply voltages.
The devices provide inrush current control and shortcircuit
detection during startup. During normal operation,
the devices provide circuit-breaker protection against
overload and short-circuit conditions. The circuit-breaker
function disconnects the power to the load if the load
current exceeds the circuit-breaker limit. The devices
are factory-calibrated to deliver accurate overcurrent
protection with Q10% accuracy. During a fault condition,
the MAX5976A enters an autoretry mode while the
MAX5976B latches off. Both versions feature a resistoradjustable
variable speed circuit-breaker threshold and
overtemperature protection. Additional features include
power-good and fault indicator outputs.
The ICs are available in a 16-pin, 5mm x 5mm, TQFNEP
package and fully specified over the -40°C to +85°C
operating temperature range.
hot-swap applications requiring the safe insertion and
removal of circuit line cards from a live backplane. The
devices integrate a hot-swap controller, 24mI power
MOSFET, and electronic circuit-breaker protection in a
single package. The ICs are designed for protection of
2.7V to 18V supply voltages.
The devices provide inrush current control and shortcircuit
detection during startup. During normal operation,
the devices provide circuit-breaker protection against
overload and short-circuit conditions. The circuit-breaker
function disconnects the power to the load if the load
current exceeds the circuit-breaker limit. The devices
are factory-calibrated to deliver accurate overcurrent
protection with Q10% accuracy. During a fault condition,
the MAX5976A enters an autoretry mode while the
MAX5976B latches off. Both versions feature a resistoradjustable
variable speed circuit-breaker threshold and
overtemperature protection. Additional features include
power-good and fault indicator outputs.
The ICs are available in a 16-pin, 5mm x 5mm, TQFNEP
package and fully specified over the -40°C to +85°C
operating temperature range.
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