Dual Hot Swap Controllers
LTC1647-1/LTC1647-2/LTC1647-3 Dual Hot Swap Controllers
FEATURES
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DESCRIPTIO
Allows Safe Board Insertion...
Description
LTC1647-1/LTC1647-2/LTC1647-3 Dual Hot Swap Controllers
FEATURES
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DESCRIPTIO
Allows Safe Board Insertion and Removal from a Live Backplane Programmable Electronic Circuit Breaker FAULT Output Indication Programmable Supply Voltage Power-Up Rate High Side Drive for External MOSFET Switches Controls Supply Voltages from 2.7V to 16.5V Undervoltage Lockout
The LTC®1647-1/LTC1647-2/LTC1647-3 are dual Hot SwapTM controllers that permit a board to be safely inserted and removed from a live backplane. Using external N-channel MOSFETs, the board supply voltages can be ramped up at a programmable rate. A high side switch driver controls the MOSFET gates for supply voltages ranging from 2.7V to 16.5V. A programmable electronic circuit breaker protects against overloads and shorts. The ON pins are used to control board power or clear a fault. The LTC1647-1 is a dual Hot Swap controller with a common VCC pin, separate ON pins and is available in an SO-8 package. The LTC1647-2 is similar to the LTC1647-1 but combines a fault status flag with automatic retry at the ON pins and is also available in the SO-8 package. The LTC1647-3 has individual VCC pins, ON pins and FAULT status pins for each channel and is available in a 16-lead narrow SSOP package.
, LTC and LT are registered trademarks of Linear Technology Corporation. Hot Swap is a trademark of Linear Technology Corporation.
U APPLICATIO S
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Hot Board Insertion Electronic Circuit Breaker Portable Computer Device ...
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